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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

_______________________________

FORM 10-Q

_______________________________

☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2020

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from ______ to ______

Commission File Number: 001-37391

_______________________________

Reliant Bancorp, Inc.

(Exact name of registrant as specified in its charter)

_______________________________

Tennessee			37-1641316
(State or other jurisdiction of incorporation or organization)			(I.R.S. Employer Identification No.)
1736 Carothers Parkway,
Suite 100,
Brentwood,
Tennessee			37027
(Address of principal executive offices)			(Zip Code)

615-221-2020

(Registrant's telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class			Trading Symbol(s)			Name of each exchange on which registered
Common Stock, $1.00 par value per share			RBNC			NASDAQ

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days:  Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (Section 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files): Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act:

Large Accelerated Filer			¨			Accelerated Filer			☒
Non-Accelerated Filer			¨			Smaller Reporting Company			☒
Emerging growth company			☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

The number of shares outstanding of the registrant’s common stock, par value $1.00 per share, as of November 3, 2020

was 16,297,676, excluding 337,794 unexchanged shares in connection with acquisitions.

TABLE OF CONTENTS

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS						3
PART I – FINANCIAL INFORMATION						5
Item 1.			Consolidated Financial Statements (Unaudited)			5
Item 2.			Management’s Discussion and Analysis of Financial Condition and Results of Operations			40
Item 3.			Quantitative and Qualitative Disclosures About Market Risk			61
Item 4.			Controls and Procedures			61
PART II – OTHER INFORMATION						62
Item 1.			Legal Proceedings			62
Item 1A.			Risk Factors			62
Item 2.			Unregistered Sales of Equity Securities and Use of Proceeds			62
Item 3.			Defaults Upon Senior Securities			62
Item 4.			Mine Safety Disclosures			62
Item 5.			Other Information			62
Item 6.			Exhibits			64
SIGNATURES						65

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CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

Various statements contained in or incorporated by reference into this Quarterly Report on Form 10-Q (this “Quarterly Report”) are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). The words “believe,” “anticipate,” “expect,” “may,” “will,” “assume,” “should,” “predict,” “could,” “would,” “intend,” “targets,” “estimates,” “projects,” “plans,” and “potential,” and other similar words and expressions of the future, are intended to identify such forward-looking statements, but other statements not based on historical information may also be considered forward-looking. All forward-looking statements are subject to risks, uncertainties, and other factors that may cause the actual results, performance, or achievements of Reliant Bancorp, Inc. (“Reliant Bancorp”) to differ materially from any results, performance, or achievements expressed or implied by such forward-looking statements. Such risks, uncertainties, and other factors include, among others:

(1)    the global health and economic crisis precipitated by the coronavirus (COVID-19) pandemic;

(2)    actions taken by governments, businesses and individuals in response to the coronavirus (COVID-19) pandemic;

(3)    the pace of recovery when the coronavirus (COVID-19) pandemic subsides;

(4)    the possible recurrence of the coronavirus (COVID-19);

(5)    changes in political conditions or the legislative or regulatory environment, including governmental initiatives affecting the financial services industry such as, but not limited to, the Coronavirus Aid, Relief, and Economic Security Act (or the CARES Act);

(6)    the possibility that our asset quality could decline or that we experience greater loan losses than anticipated;

(7)    increased levels of other real estate, primarily as a result of foreclosures;

(8)    the impact of liquidity needs on our results of operations and financial condition;

(9)    competition from financial institutions and other financial service providers;

(10)    the effect of interest rate increases on the cost of deposits;

(11)    unanticipated weakness in loan demand or loan pricing;

(12)    greater than anticipated adverse conditions in the national economy or local economies in which we operate, including Middle Tennessee;

(13)    lack of strategic growth opportunities or our failure to execute on available opportunities;

(14)    deterioration in the financial condition of borrowers resulting in significant increases in loan losses and provisions for those losses;

(15)    economic crises and associated credit issues in industries most impacted by the coronavirus (COVID-19) pandemic, including the restaurant, hospitality and retail sectors;

(16)    the ability to grow and retain low-cost core deposits and retain large, uninsured deposits;

(17)    our ability to effectively manage problem credits;

(18)    our ability to successfully implement efficiency initiatives on time and with the results projected;

(19)    our ability to successfully develop and market new products and technology;

(20)    the impact of negative developments in the financial industry and United States and global capital and credit markets;

(21)    our ability to retain the services of key personnel;

(22)    our ability to adapt to technological changes;

(23)    risks associated with litigation, including the applicability of insurance coverage;

(24)    the vulnerability of the computer and information technology systems and networks of Reliant Bank (the “Bank”), and the systems and networks of third parties with whom Reliant Bancorp or the Bank contract, to unauthorized access, computer viruses, phishing schemes, spam attacks, human error, natural disasters, power loss, and other security breaches and interruptions;

(25)    changes in state and federal laws, rules, regulations, or policies applicable to banks or bank or financial holding companies, including regulatory or legislative developments;

(26)    adverse results (including costs, fines, reputational harm, and/or other negative effects) from current or future litigation, regulatory examinations, or other legal or regulatory actions;

(27)    the risk that expected cost savings and revenue synergies from (a) the merger of Reliant Bancorp and Tennessee Community Bank Holdings, Inc. (“TCB Holdings”) (the “TCB Holdings Transaction”) or (b) the merger of Reliant Bancorp and First Advantage Bancorp (“FABK”) (the “FABK Transaction” and, together with the TCB Holdings Transaction, collectively, the “Transactions”), may not be realized or may take longer than anticipated to be realized;

(28)    the effect of the Transactions on our customer, supplier, or employee relationships and operating results (including without limitation difficulties in maintaining relationships with employees and customers), as well as on the market price of Reliant Bancorp’s common stock;

(29)    the risk that the businesses and operations of TCB Holdings and its subsidiaries and of FABK and its subsidiaries cannot be successfully integrated with the business and operations of Reliant Bancorp and its subsidiaries or that integration will be more costly or difficult than expected;

2

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(30)    the amount of costs, fees, expenses, and charges related to the Transactions, including those arising as a result of unexpected factors or events;

(31)    reputational risk associated with and the reaction of our customers, suppliers, employees, or other business partners to the Transactions;

(32)    the risk associated with Reliant Bancorp management’s attention being diverted away from the day-to-day business and operations of Reliant Bancorp to the integration of the Transactions; and

(33)    general competitive, economic, political, and market conditions, including economic conditions in the local markets where we operate.

Further, statements about the potential effects of the coronavirus (COVID-19) pandemic on our business, financial condition, liquidity, or results of operations may constitute forward-looking statements and are subject to the risk that the actual effects may differ, possibly materially, from what is reflected in those forward-looking statements due to factors and future developments that are uncertain, unpredictable, and in many cases beyond our control, including the scope and duration of the pandemic, actions taken by governmental authorities in response to the pandemic, and the direct and indirect impact of the pandemic on our customers, other third parties, and us.

You should also consider carefully the risk factors discussed in Part I, Item 1A. "Risk Factors" of our most recent Annual Report on Form 10-K and in Part II, Item 1A. "Risk Factors" in our Quarterly Reports on Form 10-Q for the quarters ended March 31, 2020 and June 30, 2020, which address additional factors that could cause our actual results to differ from those set forth in forward-looking statements and could materially and adversely affect our business, operating results, and financial condition. The risks discussed in this Quarterly Report are factors that, individually or in the aggregate, management believes could cause our actual results to differ materially from expected and historical results. You should understand that it is not possible to predict or identify all such factors, many of which are beyond our ability to control or predict. Consequently, you should not consider such disclosures to be a complete discussion of all potential risks or uncertainties. Factors not here or otherwise listed may develop or, if currently extant, we may not have yet recognized them.

Forward-looking statements speak only as of the date on which they are made, and, except to the extent required by federal securities laws, we undertake no obligation to update any forward-looking statement to reflect events or circumstances after the date on which the statement is made or to reflect the occurrence of unanticipated events. In addition, we cannot assess the impact of each factor on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements.

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Table of Contents

PART I – FINANCIAL INFORMATION

Item 1.    Consolidated Financial Statements (Unaudited)

RELIANT BANCORP, INC.

CONSOLIDATED BALANCE SHEETS

SEPTEMBER 30, 2020 (UNAUDITED) AND DECEMBER 31, 2019 (AUDITED)

(Dollar amounts in thousands)

			September 30, 2020						December 31, 2019
ASSETS
Cash and due from banks			$	14,050					$	7,953
Interest-bearing deposits in financial institutions			61,349						43,644
Federal funds sold			12,273						52
Total cash and cash equivalents			87,672						51,649
Securities available for sale			273,893						260,293
Loans			2,357,898						1,409,952
Less allowance for loan losses			(19,834)						(12,578)
Loans, net			2,338,064						1,397,374
Mortgage loans held for sale, net			99,587						37,476
Accrued interest receivable			14,615						7,188
Premises and equipment, net			33,319						21,064
Operating leases right of use assets			14,619						—
Restricted equity securities, at cost			17,367						11,279
Other real estate, net			1,326						750
Cash surrender value of life insurance contracts			68,109						46,632
Deferred tax assets, net			8,523						3,933
Goodwill			51,506						43,642
Core deposit intangibles			11,820						7,270
Other assets			24,092						13,292
TOTAL ASSETS			$	3,044,512					$	1,901,842
LIABILITIES AND SHAREHOLDERS’ EQUITY
Deposits
Noninterest-bearing demand			$	538,844					$	260,681
Interest-bearing demand			272,805						152,718
Savings and money market deposit accounts			813,001						408,724
Time			940,852						762,330
Total deposits			2,565,502						1,584,453
Accrued interest payable			3,744						2,022
Federal funds purchased			5,000						—
Subordinated debentures			70,389						70,883
Federal Home Loan Bank advances			40,555						10,737
Operating leases liabilities			15,756						—
Other liabilities			36,480						9,994
TOTAL LIABILITIES			2,737,426						1,678,089
Preferred stock, $1 par value; 10,000,000 shares authorized, no shares issued to date			—						—
Common stock, $1 par value; 30,000,000 shares authorized; 16,634,572 and 11,206,254 shares issued and outstanding at September 30, 2020, and December 31, 2019, respectively			16,635						11,206
Additional paid-in capital			232,738						167,006
Retained earnings			55,206						40,472
Accumulated other comprehensive income			2,507						5,069
TOTAL SHAREHOLDERS’ EQUITY			307,086						223,753
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY			$	3,044,512					$	1,901,842

See accompanying notes to consolidated financial statements.

4

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RELIANT BANCORP, INC.

CONSOLIDATED STATEMENTS OF INCOME - UNAUDITED

FOR THE THREE AND NINE MONTHS ENDED SEPTEMBER 30, 2020 AND 2019

(Dollar amounts in thousands except per share amounts)

			Three Months Ended September 30,												Nine Months Ended September 30,
			2020						2019						2020						2019
INTEREST INCOME
Interest and fees on loans			$	32,895					$	17,502					$	86,987					$	50,631
Interest and fees on loans held for sale			1,037						263						2,412						614
Interest on investment securities, taxable			399						549						978						1,639
Interest on investment securities, nontaxable			1,186						1,576						3,874						4,944
Federal funds sold and other			250						321						738						918
TOTAL INTEREST INCOME			35,767						20,211						94,989						58,746
INTEREST EXPENSE
Deposits
Demand			236						81						554						278
Savings and money market deposit accounts			1,162						976						3,668						3,156
Time			2,736						4,825						9,577						12,850
Federal Home Loan Bank advances and other			104						66						613						534
Subordinated debentures			992						199						2,967						590
TOTAL INTEREST EXPENSE			5,230						6,147						17,379						17,408
NET INTEREST INCOME			30,537						14,064						77,610						41,338
PROVISION FOR LOAN LOSSES			1,500						606						7,400						806
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES			29,037						13,458						70,210						40,532
NONINTEREST INCOME
Service charges on deposit accounts			1,583						976						4,172						2,796
Gains on mortgage loans sold, net			3,783						1,385						7,605						3,170
Gain on securities transactions, net			—						—						327						306
Other noninterest income			635						399						1,602						1,124
TOTAL NONINTEREST INCOME			6,001						2,760						13,706						7,396
NONINTEREST EXPENSE
Salaries and employee benefits			12,184						7,634						33,885						22,605
Occupancy			2,054						1,359						5,566						4,069
Data processing and software			2,240						1,553						6,085						4,538
Professional fees			775						404						1,933						1,836
Regulatory Fees			365						(17)						1,356						596
Merger expenses			78						299						6,895						302
Other operating expense			2,637						1,815						6,476						4,973
TOTAL NONINTEREST EXPENSE			20,333						13,047						62,196						38,919
INCOME BEFORE PROVISION FOR INCOME TAXES			14,705						3,171						21,720						9,009
INCOME TAX EXPENSE			2,800						557						3,524						1,430
CONSOLIDATED NET INCOME			11,905						2,614						18,196						7,579
NONCONTROLLING INTEREST IN NET (INCOME) LOSS OF SUBSIDIARY			(374)						1,386						990						4,484
NET INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS			$	11,531					$	4,000					$	19,186					$	12,063
Basic net income attributable to common shareholders, per share			$	0.70					$	0.36					$	1.27					$	1.07
Diluted net income attributable to common shareholders, per share			$	0.69					$	0.36					$	1.27					$	1.07

See accompanying notes to consolidated financial statements.

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RELIANT BANCORP, INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - UNAUDITED

FOR THE THREE AND NINE MONTHS ENDED SEPTEMBER 30, 2020 AND 2019

(Dollar amounts in thousands)

			Three Months Ended September 30,												Nine Months Ended September 30,
			2020						2019						2020						2019
Consolidated net income			$	11,905					$	2,614					$	18,196					$	7,579
Other comprehensive income (loss)
Net unrealized gains on available-for-sale securities, net of tax of ($357) and ($973) for the three months ended September 30, 2020 and 2019, respectively, and ($864) and ($3,935) for the nine months ended September 30, 2020 and 2019, respectively			1,008						2,736						2,442						11,122
Net unrealized losses on interest rate swap derivatives net of tax of ($133) and $98 for the three months ended September 30, 2020 and 2019, respectively, and $1,685 and $569 for the nine months ended September 30, 2020 and 2019, respectively			375						(275)						(4,762)						(1,606)
Reclassification adjustment for gains included in net income, net of tax of $0 and $0 for the three months ended September 30, 2020 and 2019, respectively, and $85 and $80 for the nine months ended September 30, 2020 and 2019, respectively			—						—						(242)						(226)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)			1,383						2,461						(2,562)						9,290
TOTAL COMPREHENSIVE INCOME			$	13,288					$	5,075					$	15,634					$	16,869

See accompanying notes to consolidated financial statements.

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RELIANT BANCORP, INC.

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY - UNAUDITED

FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2020 AND 2019

(Dollar amounts in thousands)

			COMMON STOCK												ADDITIONAL PAID-IN CAPITAL						RETAINED EARNINGS						ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)						NONCONTROLLING INTEREST						TOTAL
			SHARES						AMOUNT
BALANCE - DECEMBER 31, 2019			11,206,254						$	11,206					$	167,006					$	40,472					$	5,069					$	—					$	223,753
Stock based compensation expense			—						—						349						—						—						—						349
Exercise of stock options			868						1						7						—						—						—						8
Restricted stock and dividend forfeiture			(3,837)						(4)						(69)						—						—						—						(73)
Conversion shares issued to shareholders of Tennessee Community Bank Holdings, Inc.			811,210						811						17,230						—						—						—						18,041
Noncontrolling interest contributions			—						—						—						—						—						976						976
Cash dividend declared to common shareholders ($0.10 per share)			—						—						—						(1,207)						—						—						(1,207)
Cumulative effect of lease standard adoption			—						—						—						100						—						—						100
Net loss			—						—						—						(215)						—						(976)						(1,191)
Other comprehensive loss			—						—						—						—						(6,084)						—						(6,084)
BALANCE - MARCH 31, 2020			12,014,495						$	12,014					$	184,523					$	39,150					$	(1,015)					$	—					$	234,672
Stock based compensation expense			—						—						485						—						—						—						485
Exercise of stock options			1,021						1						14						—						—						—						15
Employee Stock Purchase Plan stock issuance			8,344						8						108						—						—						—						116
Restricted stock awards			3,022						3						(3)						—						—						—						—
Restricted stock and dividend forfeiture			(1,697)						(1)						1						—						—						—						—
Conversion shares issued to shareholders of First Advantage Bancorp			4,606,419						4,607						47,308						—						—						—						51,915
Noncontrolling interest contributions			—						—						—						—						—						388						388
Cash dividend declared to common shareholders ($0.10 per share)			—						—						—						(1,667)						—						—						(1,667)
Net income (loss)			—						—						—						7,868						—						(388)						7,480
Other comprehensive income			—						—						—						—						2,139						—						2,139
BALANCE - JUNE 30, 2020			16,631,604						$	16,632					$	232,436					$	45,351					$	1,124					$	—					$	295,543
Stock based compensation expense			—						—						349						—						—						—						349
Exercise of stock options			4,655						5						61						—						—						—						66
Restricted stock units vesting, net of taxes withheld			8,030						8						(14)						—						—						—						(6)
Restricted stock and dividend forfeiture			(9,717)						(10)						(94)						—						—						—						(103)
Noncontrolling interest contributions			—						—						—						—						—						(374)						(374)
Cash dividend declared to common shareholders ($0.10 per share)			—						—						—						(1,676)						—						—						(1,676)
Net income			—						—						—						11,531						—						374						11,905
Other comprehensive income			—						—						—						—						1,383						—						1,383
BALANCE - SEPTEMBER 30, 2020			16,634,572						$	16,635					$	232,738					$	55,206					$	2,507					$	—					$	307,086

			COMMON STOCK												ADDITIONAL PAID-IN CAPITAL						RETAINED EARNINGS						ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)						NONCONTROLLING INTEREST						TOTAL
			SHARES						AMOUNT
BALANCE - DECEMBER 31, 2018			11,530,810						$	11,531					$	173,238					$	27,329					$	(3,684)					$	—					$	208,414
Stock based compensation expense			—						—						250						—						—						—						250
Exercise of stock options			2,183						2						26						—						—						—						28
Restricted stock awards			3,000						3						(3)						—						—						—						—
Restricted stock forfeiture			(3,750)						(4)						4						1						—						—						1
Common stock shares redeemed			(29,958)						(30)						(629)						—						—						—						(659)
Noncontrolling interest contributions			—						—						—						—						—						1,543						1,543
Cash dividends declared to common shareholders ($0.09 per share)			—						—						—						(1,035)						—						—						(1,035)
Net income (loss)			—						—						—						3,824						—						(1,543)						2,281
Other comprehensive income			—						—						—						—						4,296						—						4,296
BALANCE - MARCH 31, 2019			11,502,285						$	11,502					$	172,886					$	30,119					$	612					$	—					$	215,119
Stock based compensation expense			—						—						280						—						—						—						280
Exercise of stock options			24,523						25						298						—						—						—						323
Employee Stock Purchase Plan stock issuance			4,728						5						85						—						—						—						90
Restricted stock awards			5,000						5						(5)						—						—						—						—
Restricted stock and dividend forfeiture			(4,000)						(4)						4						—						—						—						—
Common stock shares redeemed			(335,973)						(336)						(7,296)						—						—						—						(7,632)
Noncontrolling interest contributions			—						—						—						—						—						1,555						1,555
Cash dividends declared to common shareholders ($0.09 per share)			—						—						—						(1,009)						—						—						(1,009)
Net income (loss)			—						—						—						4,239						—						(1,555)						2,684
Other comprehensive income			—						—						—						—						2,533						—						2,533
BALANCE - JUNE 30, 2019			11,196,563						$	11,197					$	166,252					$	33,349					$	3,145					$	—					$	213,943
Stock based compensation expense			—						—						337						—						—						—						337
Exercise of stock options			600						1						8						—						—						—						9
Restricted stock awards			1,500						1						(1)						—						—						—						—
Restricted shares withheld for taxes			(3,601)						(4)						(84)						—						—						—						(88)
Noncontrolling interest contributions			—						—						—						—						—						1,386						1,386
Cash dividend declared to common shareholders ($0.09 per share)			—						—						—						(1,010)						—						—						(1,010)
Net income (loss)			—						—						—						4,000						—						(1,386)						2,614
Other comprehensive loss			—						—						—						—						2,461						—						2,461
BALANCE - SEPTEMBER 30, 2019			11,195,062						$	11,195					$	166,512					$	36,339					$	5,606					$	—					$	219,652

See accompanying notes to consolidated financial statements.

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RELIANT BANCORP, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS - UNAUDITED

FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2020 AND 2019

(Dollar amounts in thousands)

			Nine Months Ended September 30,
OPERATING ACTIVITIES			2020						2019
Consolidated net income			$	18,196					$	7,579
Adjustments to reconcile consolidated net income to net cash (used in) provided by operating activities
Provision for loan losses			7,400						806
Deferred income taxes			2,003						3,686
Gain on disposal of premises and equipment			(1)						—
Depreciation and amortization of premises and equipment			2,084						1,486
Net amortization of securities			1,980						2,302
Net realized gains on sales of securities			(327)						(306)
Gains on mortgage loans sold, net			(7,605)						(3,170)
Stock-based compensation expense			1,183						867
Gain on other real estate			(24)						—
Increase in cash surrender value of life insurance contracts			(1,073)						(838)
Mortgage loans originated for resale			(327,521)						(106,520)
Proceeds from sale of mortgage loans			278,893						108,756
Cash payments arising from operating leases			2,327						—
Other accretion, net of other amortization			(10,748)						(477)
Change in
Accrued interest receivable			(4,094)						726
Other assets			(4,535)						508
Accrued interest payable			(526)						547
Other liabilities			6,497						(6,392)
TOTAL ADJUSTMENTS			(54,087)						1,981
NET CASH (USED IN) PROVIDED BY OPERATING ACTIVITIES			(35,891)						9,560
INVESTING ACTIVITIES
Cash used to convert shares, and redeem stock options and fractional shares, net of cash received			(8,500)						—
Activities in available for sale securities
Purchases			(31,179)						(47,870)
Sales			103,901						52,434
Maturities, prepayments and calls			10,370						8,587
(Purchases) redemptions of restricted equity securities			(1,867)						411
Net increase in loans			(146,777)						(118,758)
Purchase of premises and equipment			(2,709)						(843)
Proceeds from sale of premises and equipment			257						—
Proceeds from sale of other real estate			2,273						—
NET CASH USED IN INVESTING ACTIVITIES			(74,231)						(106,039)
FINANCING ACTIVITIES
Net change in deposits			163,839						172,741
Proceeds from Federal Home Loan Bank Advances			444,000						163,824
Payments on Federal Home Loan Bank Advances			(463,156)						(217,353)
Proceeds from Federal Funds Purchased			5,000						—
Issuance of common stock, net of repurchase of restricted shares			(177)						272
Issuance of common stock related to exercise of stock options and ESPP			199						90
Redemption of common stock			—						(8,291)
Noncontrolling interest contributions received			990						4,415
Cash dividends paid on common stock			(4,550)						(3,077)
NET CASH PROVIDED BY FINANCING ACTIVITIES			146,145						112,621
NET CHANGE IN CASH AND CASH EQUIVALENTS			36,023						16,142
CASH AND CASH EQUIVALENTS - BEGINNING OF PERIOD			51,649						35,178
CASH AND CASH EQUIVALENTS - END OF PERIOD			$	87,672					$	51,320

See accompanying notes to consolidated financial statements.

RELIANT BANCORP, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS - UNAUDITED

FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2020 AND 2019

(Dollar amounts in thousands)

			Nine Months Ended September 30,
			2020						2019
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid during the period for
Interest			$	20,508					$	16,861
Taxes			$	4,565					$	1,607
Non-cash investing and financing activities
Change in due to/from noncontrolling interest			$	990					$	4,484
Acquired bank facilities no longer in use transferred to other real estate owned and foreclosed assets from premises and equipment			$	2,420					$	—
Loans foreclosed and transferred to other real estate owned and foreclosed assets			$	197					$	943

See accompanying notes to consolidated financial statements.

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Table of Contents

RELIANT BANCORP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

NOTE 1 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Nature of Operations

Reliant Bancorp, Inc. is a Tennessee corporation and the holding company for and the sole shareholder of Reliant Bank (the "Bank"), collectively, "the Company". Reliant Bancorp is registered as a financial holding company under the Bank Holding Company Act of 1956, as amended ("Bank Holding Company Act"). Reliant Bank is a commercial bank chartered under Tennessee law and a member of the Federal Reserve System (the "Federal Reserve"). The Bank provides a full range of traditional banking products and services to business and consumer clients throughout Middle Tennessee.

Reliant Risk Management, Inc., a wholly-owned insurance captive subsidiary of Reliant Bancorp, that began operations on June 1, 2020, is a Tennessee-based captive insurance company which insures Reliant Bancorp and the Bank against certain risks unique to their operations and for which insurance may not be currently available or economically feasible in today's insurance marketplace. Reliant Risk Management, Inc. pools resources with several other similar insurance company subsidiaries of financial institutions to spread a limited amount of risk among themselves. Reliant Risk Management, Inc. is subject to regulations of the State of Tennessee and undergoes periodic examinations by the Tennessee Department of Commerce and Insurance.

Basis of Presentation

The accompanying unaudited consolidated financial statements have been prepared in accordance with instructions to Quarterly Report on Form 10-Q and therefore do not include all information and footnotes necessary for a fair presentation of financial position, results of operations, and cash flows in conformity with accounting principles generally accepted in the United States of America ("U.S. GAAP"). All adjustments consisting of normally recurring accruals that, in the opinion of management, are necessary for a fair presentation of the financial position and results of operations for the periods covered by the report have been included.  The accompanying unaudited consolidated financial statements should be read in conjunction with the Company's consolidated financial statements and related notes appearing in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019.

The consolidated financial statements as of and for the periods presented include Reliant Bancorp, Inc., its wholly-owned direct and indirect subsidiaries and Reliant Mortgage Ventures, LLC ("RMV"), of which the Bank controls 51% of the governance rights. As described in Note 12 to these unaudited consolidated financial statements, Reliant Bancorp, Inc. and TCB Holdings merged effective on January 1, 2020, and Reliant Bancorp, Inc. and FABK merged effective April 1, 2020.

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions based on available information. These estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to determination of the allowance for loan losses, the valuation of other real estate, the valuation of debt and equity securities, the valuation of deferred tax assets and fair values of financial instruments.

The consolidated financial statements as of September 30, 2020, and for the three and nine months ended September 30, 2020 and 2019, included herein have not been audited. The accounting and reporting policies of the Company conform to U.S. GAAP and Article 8 of Regulation S-X. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission, although the Company believes that the disclosures made are adequate to make the information not misleading.

The accompanying consolidated financial statements reflect all adjustments which, in the opinion of management, are necessary to present a fair statement of the results for the interim periods presented. Such adjustments are of a normal recurring nature. The Company evaluates subsequent events through the date of filing. Certain prior period amounts have been reclassified to

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Table of Contents

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

conform to the current period presentation. The results for the three and nine months ended September 30, 2020 are not necessarily indicative of the results that may be expected for the year ending December 31, 2020.

Recently Adopted Accounting Pronouncements

Information about certain issued accounting standards updates is presented below. Also refer to Note 1 - Summary of Significant Accounting Policies, “Recent Authoritative Accounting Guidance” in the Company's Annual Report on Form 10-K for the year ended December 31, 2019 for additional information related to previously issued accounting standards updates.

ASU 2016-02, “Leases (Topic 842).” ASU 2016-02 requires lessees to recognize a lease liability, which is a lessee's obligation to make lease payments arising from a lease, measured on a discounted basis, and a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. ASU 2016-02 went into effect for the Company on January 1, 2020 and the Company elected the prospective application approach provided by ASU 2018-11 and did not adjust prior periods for ASC 842. The Company also elected certain practical expedients within the standard and consistent with such elections did not reassess whether any expired or existing contracts are or contain leases, did not reassess the lease classification for any expired or existing leases, and did not reassess any initial direct costs for existing leases. The effect of implementing this pronouncement resulted in right to use assets of $11,973 and a similar corresponding liability, as of January 1, 2020.

ASU 2017-04, “Intangibles - Goodwill and Other (Topic 350) - Simplifying the Test for Goodwill Impairment.” ASU 2017-04 eliminates Step 2 from the goodwill impairment test which required entities to compute the implied fair value of goodwill. Under ASU 2017-04, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. ASU 2017-04 was early adopted as of January 1, 2020 and did not have a significant impact on the Company's consolidated financial statements as it simplifies the test of impairment of goodwill.

ASU 2020-04, "Reference Rate Reform (Topic 848) - Facilitation of the Effects of Reference Rate Reform on Financial Reporting." In March 2020, the FASB issued Topic 848 amendments to provide optional guidance for a limited period of time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. It provides optional expedients and exceptions for applying generally accepted accounting principles to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The amendments in this update are effective for all entities as of March 12, 2020 through December 31, 2022. The Company has evaluated the effect of the pronouncement on the consolidated financial statements, noting no significant impact.

Newly Issued not yet Effective Accounting Standards

ASU 2016-13, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” ASU 2016-13 requires the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts and requires enhanced disclosures related to the significant estimates and judgments used in estimating credit losses, as well as the credit quality and underwriting standards of an organization’s portfolio. In addition, ASU 2016-13 amends the accounting for credit losses on available for sale debt securities and purchased financial assets with credit deterioration. ASU 2016-13 is expected to be effective for the Company on January 1, 2023. We are currently evaluating the potential impact of ASU 2016-13 on the Company's financial statements by developing an implementation plan to include assessment of processes, portfolio segmentation, model development, system requirements and the identification of data and resource needs, among other things. The adoption of ASU 2016-13 could result in an increase in the allowance for loan losses as a result of changing from an “incurred loss” model, which encompasses allowances for current known and inherent losses within the portfolio, to an “expected loss” model, which encompasses allowances for losses expected to be incurred over the life of the portfolio. Furthermore, ASU 2016-13 will necessitate that we establish an allowance for expected credit losses for certain debt securities and other financial assets. In April 2019, the FASB issued ASU No. 2019-04, Codification Improvements to Financial Instruments - Credit Losses (ASC 326), Derivatives and Hedging (ASC 815), and Financial Instruments (ASC 825). The amendments in this ASU improve the codification by eliminating inconsistencies and providing clarifications. The amended guidance in this ASU related to credit losses is expected to be effective for the Company in conjunction with the adoption of the standard on January 1, 2023. The Company is currently evaluating the impact of these ASUs on the Company’s consolidated financial statements. While we are currently unable to

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SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

reasonably estimate the impact of adopting these ASUs, we expect that the impact of adoption will be significantly influenced by the composition, characteristics and quality of the Company's loan and securities portfolios as well as the prevailing economic conditions and forecasts as of the adoption date.

NOTE 2 - SECURITIES

The amortized cost and fair value of available for sale securities and the related gross unrealized gains and losses recognized in accumulated other comprehensive income at September 30, 2020 and December 31, 2019 were as follows:

			September 30, 2020
			Amortized Cost						Gross Unrealized Gains						Gross Unrealized Losses						Estimated Fair Value
U. S. Treasury and other U. S. government agencies			$	12,117					$	1					$	(1)					$	12,117
State and municipal			175,976						14,717						(70)						190,623
Corporate bonds			15,750						167						(108)						15,809
Mortgage-backed securities			41,240						348						(1,212)						40,376
Asset-backed securities			15,199						—						(231)						14,968
Total			$	260,282					$	15,233					$	(1,622)					$	273,893

			December 31, 2019
			Amortized Cost						Gross Unrealized Gains						Gross Unrealized Losses						Estimated Fair Value
U. S. Treasury and other U. S. government agencies			$	59					$	—					$	—					$	59
State and municipal			186,283						10,413						(36)						196,660
Corporate bonds			7,880						97						(132)						7,845
Mortgage-backed securities			38,126						296						(661)						37,761
Asset-backed securities			18,374						—						(406)						17,968
Total			$	250,722					$	10,806					$	(1,235)					$	260,293

Securities pledged at September 30, 2020 and December 31, 2019 had a carrying amount of $43,406 and $46,918, respectively, and were pledged to collateralize Federal Home Loan Bank ("FHLB") advances, Federal Reserve Bank ("FRB") advances and municipal deposits.

The fair values of available for sale debt securities at September 30, 2020 by contractual maturity are provided below. Actual maturities may differ from contractual maturities for mortgage- and asset-backed securities since the underlying asset may be called or prepaid with or without penalty. Securities not due at a single maturity date are shown separately.

Results from sales of securities were as follows:

			Nine months ended
			September 30, 2020						September 30, 2019
Proceeds			$	103,901					$	52,434
Gross gains			810						475
Gross losses			(483)						(169)

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SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

			Amortized Cost						Estimated Fair Value
Due within one year			$	12,567					$	12,565
Due in one to five years			2,175						2,186
Due in five to ten years			17,222						17,965
Due after ten years			171,879						185,833
Mortgage-backed securities			41,240						40,376
Asset-backed securities			15,199						14,968
Total			$	260,282					$	273,893

The following table shows available for sale securities with unrealized losses and their estimated fair value aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position as of September 30, 2020 and December 31, 2019, respectively:

			Less than 12 months												12 months or more												Total
			Estimated Fair Value						Unrealized Loss						Estimated Fair Value						Unrealized Loss						Estimated Fair Value						Unrealized Loss
September 30, 2020
U. S. Treasury and other U. S. government agencies			$	12,066					$	1					$	—					$	—					$	12,066					$	1
State and municipal			7,319						70						—						—						7,319						70
Corporate bonds			9,142						107						500						1						9,642						108
Mortgage-backed securities			6,613						282						20,982						930						27,595						1,212
Asset-backed securities			790						1						14,092						230						14,882						231
Total temporarily impaired			$	35,930					$	461					$	35,574					$	1,161					$	71,504					$	1,622

December 31, 2019
U. S. Treasury and other U. S. government agencies			$	—					$	—					$	—					$	—					$	—					$	—
State and municipal			1,960						36						—						—						1,960						36
Corporate bonds			—						—						2,499						132						2,499						132
Mortgage-backed securities			16,104						286						9,081						375						25,185						661
Asset-backed securities			—						—						17,682						406						17,682						406
Total temporarily impaired			$	18,064					$	322					$	29,262					$	913					$	47,326					$	1,235

Management has the intent and ability to hold all securities in an unrealized loss position for the foreseeable future, and the decline in fair value is largely due to changes in interest rates. As the fair value is expected to recover as the securities approach their maturity date and/or market rates decline, we do not consider these securities to be other-than-temporarily impaired at September 30, 2020. There were 43 and 47 securities in an unrealized loss position as of September 30, 2020 and December 31, 2019, respectively.

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SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

NOTE 3 - LOANS AND ALLOWANCE FOR LOAN LOSSES

Loans at September 30, 2020 and December 31, 2019 were comprised as follows:

			September 30, 2020						December 31, 2019
Commercial, Industrial and Agricultural			$	477,785					$	245,515
Real Estate
1-4 Family Residential			334,730						227,529
1-4 Family HELOC			101,492						96,228
Multi-family and Commercial			864,756						536,845
Construction, Land Development and Farmland			366,760						273,872
Consumer			209,071						16,855
Other			8,259						13,180
Gross loans			2,362,853						1,410,024
Less: Deferred loan fees			4,955						72
Less: Allowance for loan losses			19,834						12,578
Loans, net			$	2,338,064					$	1,397,374

Activity in the allowance for loan losses by portfolio segment was as follows for the three months ended September 30, 2020 and September 30, 2019, respectively:

			Commercial Industrial and Agricultural			Multi-family and Commercial Real Estate			Construction Land Development and Farmland			1-4 Family Residential Real Estate			1-4 Family HELOC			Consumer			Other			Total
Beginning balance at June 30, 2020			$	4,675		$	8,407		$	2,126		$	1,454		$	975		$	584		$	16		$	18,237
Charge-offs			—			—			—			(8)			—			(60)			—			(68)
Recoveries			88			9			4			22			12			30			—			165
Provision			249			(169)			(175)			821			498			272			4			1,500
Ending balance at September 30, 2020			$	5,012		$	8,247		$	1,955		$	2,289		$	1,485		$	826		$	20		$	19,834

Beginning balance at June 30, 2019			$	1,881		$	4,713		$	2,707		$	1,455		$	686		$	188		$	36		$	11,666
Charge-offs			(2)			—			—			(12)			—			(16)			(21)			(51)
Recoveries			48			3			(201)			4			—			16			200			70
Provision			372			472			7			(64)			18			(18)			(181)			606
Ending balance at September 30, 2019			$	2,299		$	5,188		$	2,513		$	1,383		$	704		$	170		$	34		$	12,291

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SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

Activity in the allowance for loan losses by portfolio segment was as follows for the nine months ended September 30, 2020 and September 30, 2019, respectively:

			Commercial Industrial and Agricultural						Multi-family and Commercial Real Estate						Construction Land Development and Farmland						1-4 Family Residential Real Estate			1-4 Family HELOC			Consumer			Other			Total
Beginning balance at December 31, 2019			$	2,529					$	5,285					$	2,649					$	1,280		$	624		$	177		$	34		$	12,578
Charge-offs			(507)						—						(114)						(68)			(98)			(355)			—			(1,142)
Recoveries			126						20						8						769			15			60			—			998
Provision			2,864						2,942						(588)						308			944			944			(14)			7,400
Ending balance at September 30, 2020			$	5,012					$	8,247					$	1,955					$	2,289		$	1,485		$	826		$	20		$	19,834

Beginning balance at December 31, 2018			$	1,751					$	4,429					$	2,500					$	1,333		$	656		$	184		$	39		$	10,892
Charge-offs			(170)						—						—						(29)			—			(37)			(34)			(270)
Recoveries			342						62						—						220			11			28			200			863
Provision			376						697						13						(141)			37			(5)			(171)			806
Ending balance at September 30, 2019			$	2,299					$	5,188					$	2,513					$	1,383		$	704		$	170		$	34		$	12,291

The allowance for loan losses and the recorded investment in loans by portfolio segment and based on impairment method as of September 30, 2020 were as follows:

			Commercial Industrial and Agricultural						Multi-family and Commercial Real Estate						Construction Land Development and Farmland						1-4 Family Residential Real Estate			1-4 Family HELOC			Consumer			Other			Total
Allowance for loan losses
Individually evaluated for impairment			$	764					$	—					$	—					$	—		$	—		$	—		$	—		$	764
Acquired with credit impairment			—						—						—						—			—			—			—			—
Collectively evaluated for impairment			4,248						8,247						1,955						2,289			1,485			826			20			19,070
Total			$	5,012					$	8,247					$	1,955					$	2,289		$	1,485		$	826		$	20		$	19,834
Loans
Individually evaluated for impairment			$	1,084					$	2,537					$	1,777					$	1,687		$	316		$	592		$	—		$	7,993
Acquired with credit impairment			257						1,211						787						934			14			1,330			—			4,533
Collectively evaluated for impairment			476,444						861,008						364,196						332,109			101,162			207,149			8,259			2,350,327
Total			$	477,785					$	864,756					$	366,760					$	334,730		$	101,492		$	209,071		$	8,259		$	2,362,853

 

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SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

The allowance for loan losses and the recorded investment in loans by portfolio segment and based on impairment method as of December 31, 2019 were as follows:

			Commercial Industrial and Agricultural						Multi-family and Commercial Real Estate						Construction Land Development and Farmland						1-4 Family Residential Real Estate			1-4 Family HELOC			Consumer			Other			Total
Allowance for loan losses
Individually evaluated for impairment			$	755					$	—					$	17					$	—		$	—		$	—		$	—		$	772
Acquired with credit impairment			—						—						—						—			—			—			—			—
Collectively evaluated for impairment			1,774						5,285						2,632						1,280			624			177			34			11,806
Total			$	2,529					$	5,285					$	2,649					$	1,280		$	624		$	177		$	34		$	12,578
Loans
Individually evaluated for impairment			$	1,154					$	3,439					$	1,217					$	1,536		$	374		$	28		$	—		$	7,748
Acquired with credit impairment			—						215						813						195			—			—			—			1,223
Collectively evaluated for impairment			244,361						533,191						271,842						225,798			95,854			16,827			13,180			1,401,053
Total			$	245,515					$	536,845					$	273,872					$	227,529		$	96,228		$	16,855		$	13,180		$	1,410,024

Non-accrual loans by class of loan were as follows at September 30, 2020 and December 31, 2019:

			September 30, 2020						December 31, 2019
Commercial, Industrial and Agricultural			$	791					$	572
Multi-family and Commercial Real Estate			1,532						1,276
Construction, Land Development and Farmland			1,100						555
1-4 Family Residential Real Estate			1,591						1,344
1-4 Family HELOC			239						296
Consumer			1,485						28
Total			$	6,738					$	4,071

Performing non-accrual loans totaled $2,926 and $1,332 at September 30, 2020 and December 31, 2019, respectively.

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SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

Individually impaired loans by class of loans were as follows at September 30, 2020:

			Unpaid Principal Balance						Recorded Investment with no Allowance for Loan Losses Recorded						Recorded Investment with Allowance for Loan Losses Recorded						Total Recorded Investment						Related Allowance for Loan Losses
Commercial, Industrial and Agricultural			$	2,575					$	436					$	905					$	1,341					$	764
Multi-family and Commercial Real Estate			5,837						3,748						—						3,748						—
Construction, Land Development and Farmland			3,032						2,564						—						2,564						—
1-4 Family Residential Real Estate			3,322						2,621						—						2,621						—
1-4 Family HELOC			436						330						—						330						—
Consumer			3,819						1,922						—						1,922						—
Total			$	19,021					$	11,621					$	905					$	12,526					$	764

Individually impaired loans by class of loans were as follows at December 31, 2019:

			Unpaid Principal Balance						Recorded Investment with no Allowance for Loan Losses Recorded						Recorded Investment with Allowance for Loan Losses Recorded						Total Recorded Investment						Related Allowance for Loan Losses
Commercial, Industrial and Agricultural			$	1,154					$	5					$	1,149					$	1,154					$	755
Multi-family and Commercial Real Estate			3,746						3,654						—						3,654						—
Construction, Land Development and Farmland			2,347						1,859						171						2,030						17
1-4 Family Residential Real Estate			1,852						1,731						—						1,731						—
1-4 Family HELOC			376						374						—						374						—
Consumer			31						28						—						28						—
Total			$	9,506					$	7,651					$	1,320					$	8,971					$	772

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SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

The average balances of impaired loans and the interest income recognized for the three and nine months ended September 30, 2020 and 2019 were as follows:

			Three Months Ended September 30,																								Nine Months Ended September 30,
			2020												2019												2020												2019
			Average Recorded Investment						Interest Income Recognized						Average Recorded Investment						Interest Income Recognized						Average Recorded Investment						Interest Income Recognized						Average Recorded Investment						Interest Income Recognized
Impaired loans with an allowance
Commercial, Industrial and Agricultural			$	947					$6						$	2,435					$112						$	975					$32						$	1,384					$342
Multi-family and Commercial Real Estate			—						—						—						—						—						—						—						—
Construction, Land Development and Farmland			—						—						172						—						43						—						172						—
1-4 Family Residential Real Estate			—						—						—						—						—						—						—						—
1-4 Family HELOC			—						—						25						—						—						—						13						1
Consumer			—						—						—						—						1						—						—						—
Subtotal			947						6						2,631						112						1,019						32						1,568						343
Impaired loans with no allowance
Commercial, Industrial and Agricultural			594						42						672						9						356						56						537						33
Multi-family and Commercial Real Estate			4,375						63						3,474						46						4,138						278						2,838						141
Construction, Land Development and Farmland			2,949						28						1,797						21						2,471						115						2,399						168
1-4 Family Residential Real Estate			3,002						54						2,124						26						2,631						154						1,924						88
1-4 Family HELOC			331						—						296						—						367						—						148						4
Consumer			2,118						68						15						1						1,076						205						16						2
Subtotal			$	13,369					$255						$	8,378					$103						$	11,039					$808						$	7,862					$	436
Total			$	14,316					$	261					$	11,009					$	215					$	12,058					$840						$	9,430					$	779

The Company utilizes a risk grading system to monitor the credit quality of the Company’s commercial loan portfolio which consists of commercial, industrial and agricultural, commercial real estate and construction loans. Loans are graded on a scale of 1 to 9. Grades 1 to 5 are pass credits, grade 6 is special mention, grade 7 is substandard, grade 8 is doubtful and grade 9 is loss. A description of the risk grades are as follows:

    Grade 6 - Special Mention

Special mention assets have potential weaknesses that may, if not checked or corrected, weaken the asset or inadequately protect the Company’s position at some future date. These assets pose elevated risk, but their weakness does not yet justify a substandard classification. Borrowers may be experiencing adverse operating trends (declining revenues or margins) or an ill proportioned balance sheet (e.g., increasing inventory without an increase in sales, high leverage, tight liquidity). Adverse economic or market conditions, such as interest rate increases or the entry of a new competitor, may also support a special mention rating. Nonfinancial reasons for rating a credit exposure special mention include management problems, pending litigation, an ineffective loan agreement or other material structural weakness, and any other significant deviation from prudent lending practices. The special mention rating is designed to identify a specific level of risk and concern about asset quality. Although a special mention asset has a higher probability of default than a pass asset, its default is not imminent.

    Grade 7 - Substandard

A ‘‘substandard’’ extension of credit is inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Extensions of credit so classified should have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Loss potential, while existing in the aggregate amount of substandard credits, does not have to exist in individual extensions of credit classified substandard. Substandard assets have a high probability of payment default, or they have other well-defined weaknesses. They require more intensive supervision by Company management. Substandard assets are generally characterized by

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(Dollar amounts in thousands except per share amounts)

current or expected unprofitable operations, inadequate debt service coverage, inadequate liquidity, or marginal capitalization. Repayment may depend on collateral or other credit risk mitigation.

    

Grade 8 - Doubtful

An extension of credit classified ‘‘doubtful’’ has all the weaknesses inherent in one classified substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. The possibility of loss is extremely high, but because of certain important and reasonably specific pending factors that may work to the advantage of and strengthen the credit, its classification as an estimated loss is deferred until its more exact status may be determined. Pending factors may include a proposed merger or acquisition, liquidation proceedings, capital injection, perfecting liens on additional collateral, or refinancing plans. Generally, the doubtful classification should not extend for a long period of time because in most cases the pending factors or events that warranted the doubtful classification should be resolved either positively or negatively in a reasonable period of time.

    Grade 9 - Loss

Extensions of credit classified ‘‘loss’’ are considered uncollectible and of such little value that their continuance as bankable assets is not warranted. This classification does not mean that the credit has absolutely no recovery or salvage value, but rather that it is not practical or desirable to defer writing off this basically worthless asset even though partial recovery may be effected in the future. Amounts classified loss should be promptly charged off. The Company will not attempt long term recoveries while the credit remains on the Company’s books. Losses should be taken in the period in which they surface as uncollectible. With loss assets, the underlying borrowers are often in bankruptcy, have formally suspended debt repayments, or have otherwise ceased normal business operations. Once an asset is classified loss, there is little prospect of collecting either its principal or interest.

Loans not falling in the criteria above are considered to be pass-rated loans.

Non-commercial purpose loans are initially assigned a default loan grade of 99 (Pass) and are risk graded (Grade 6, 7, or 8) according to delinquency status when applicable.

Credit quality indicators by class of loan were as follows at September 30, 2020:

			Pass						Special Mention						Substandard												Total
Commercial, Industrial and Agricultural			$	474,199					$	1,534					$	2,052											$	477,785
1-4 Family Residential Real Estate			331,930						5						2,795												334,730
1-4 Family HELOC			101,176						—						316												101,492
Multi-family and Commercial Real Estate			859,739						663						4,354												864,756
Construction, Land Development and Farmland			365,135						—						1,625												366,760
Consumer			207,016						7						2,048												209,071
Other			6,739						1,520						—												8,259
Total			$	2,345,934					$	3,729					$	13,190											$	2,362,853

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

Credit quality indicators by class of loan were as follows at December 31, 2019:

			Pass						Special Mention						Substandard						Total
Commercial, Industrial and Agricultural			$	241,089					$	2,382					$	2,044					$	245,515
1-4 Family Residential Real Estate			225,809						—						1,720						227,529
1-4 Family HELOC			95,678						—						550						96,228
Multi-family and Commercial Real Estate			531,055						1,519						4,271						536,845
Construction, Land Development and Farmland			272,440						—						1,432						273,872
Consumer			16,634						—						221						16,855
Other			13,180						—						—						13,180
Total			$	1,395,885					$	3,901					$	10,238					$	1,410,024

None of the Company's loans had a risk rating of "Doubtful" or "Loss" as of September 30, 2020 or December 31, 2019.

Past due status by class of loan was as follows at September 30, 2020:

			30-59 Days Past Due						60-89 Days Past Due						90+ Days Past Due						Total Past Due						Current						Total Loans
Commercial, Industrial and Agricultural			$	219					$	—					$	412					$	631					$	477,154					$	477,785
1-4 Family Residential Real Estate			1,006						544						318						1,868						332,862						334,730
1-4 Family HELOC			—						—						198						198						101,294						101,492
Multi-family and Commercial Real Estate			—						—						1,023						1,023						863,733						864,756
Construction, Land Development and Farmland			—						684						205						889						365,871						366,760
Consumer			389						767						617						1,773						207,298						209,071
Other			—						—						—						—						8,259						8,259
Total			$	1,614					$	1,995					$	2,773					$	6,382					$	2,356,471					$	2,362,853

Past due status by class of loan was as follows at December 31, 2019:

			30-59 Days Past Due						60-89 Days Past Due						90+ Days Past Due						Total Past Due						Current						Total Loans
Commercial, Industrial and Agricultural			$	79					$	4					$	572					$	655					$	244,860					$	245,515
1-4 Family Residential Real Estate			501						236						229						966						226,563						227,529
1-4 Family HELOC			—						—						296						296						95,932						96,228
Multi-family and Commercial Real Estate			485						—						558						1,043						535,802						536,845
Construction, Land Development and Farmland			255						—						339						594						273,278						273,872
Consumer			38						26						64						128						16,727						16,855
Other			—						—						—						—						13,180						13,180
Total			$	1,358					$	266					$	2,058					$	3,682					$	1,406,342					$	1,410,024

There was one loan past due 90 days or more and still accruing interest at September 30, 2020 totaling $38. At December 31, 2019, there was one loan totaling $64 past due 90 days or more and still accruing interest.

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SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

The following table presents loans by class modified as troubled debt restructurings ("TDRs") during the first nine months of 2020. There were no modifications in the three months ending September 30, 2020. There were no loans that were modified as TDRs during the three or nine months ended September 30, 2019.

			Number of Contracts						Pre-Modification Outstanding Recorded Investments						Post-Modification Outstanding Recorded Investments
September 30, 2020
Commercial, Industrial and Agricultural			1						$	150					$	150
Multi-family and Commercial Real Estate			1						721						721
1-4 Family Residential			1						394						394
Total			3						$	1,265					$	1,265

The Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”), which was signed into law on March 27, 2020, and subsequent regulatory guidance provide that financial institutions may elect to account for certain loan modifications due to COVID-19 as not TDRs. The Company had applied this guidance to approve initial modifications in April and May 2020 for loans with principal balances of $530.7 million. The majority of these modifications were for a period of up to three months and contained either interest-only periods or full payment deferrals. Through September 30, 2020, further modifications were approved for $21.8 million of the loans previously modified. Additional modifications of these loans are likely to be executed in the fourth quarter of 2020.

The CARES Act provides over $2.0 trillion in emergency economic relief to individuals and businesses impacted by the COVID-19 pandemic. The CARES Act authorized the Small Business Administration (“SBA”) to administer new loan programs including, but not limited to, the guarantee of loans under a new 7(a) loan program called the Paycheck Protection Program (“PPP”). Upon completion of the FABK Transaction as disclosed in Note 12, we assumed their qualified SBA lender status. The Company originated 893 loans amounting to $83 million of PPP loans in 2020 which are included in the commercial, industrial, and agricultural segment. PPP loans do not have a corresponding allowance as they are fully guaranteed by the SBA. Fees range from 1% to 5% of the loan and are deferred and amortized over the life of the loan. As PPP loans are forgiven, any deferred loan fee or cost is recognized related to each individual loan.

The Company has acquired loans for which there was, at acquisition, evidence of deterioration of credit quality since origination and it was probable, at acquisition, that all contractually required payments would not be collected. The outstanding balance and carrying amount of the purchased credit impaired loans were as follows at September 30, 2020 and December 31, 2019:

			September 30, 2020						December 31, 2019
Commercial, Industrial and Agricultural			$	989					$	—
Multi-family and Commercial Real Estate			2,243						217
Construction, Land Development and Farmland			1,003						1,021
1-4 Family Residential Real Estate			1,211						231
1-4 Family HELOC			18						—
Consumer			2,105						—
Total outstanding balance			7,569						1,469
Less remaining purchase discount			3,036						246
Allowance for loan losses			—						—
Carrying amount, net of allowance for loan losses and remaining purchase discounts			$	4,533					$	1,223

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SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

Activity related to the accretable portion of the purchase discount on loans acquired with deteriorated credit quality is as follows for the nine months ended September 30, 2020 and 2019:

			2020						2019
Balance at January 1,			$	98					$	110
New loans purchased			870						—
Year-to-date settlements			(137)						(12)
Balance at September 30,			$	831					$	98

Year-to-date settlements include both loans that were charged-off as well as loans that were paid off.

NOTE 4 - LEASES

On January 1, 2020, the Company adopted ASU No. 2016-02 “Leases (Topic 842)” and all subsequent ASUs that modified Topic 842. The Company elected the prospective application approach provided by ASU 2018-11 and did not adjust prior periods for ASC 842. Leases with initial terms of less than one year are not recorded on the balance sheet.

The Company’s long-term lease agreements are classified as operating leases. Certain of these leases offer the option to extend the lease term and the Company has included such extensions in its calculation of the lease liabilities to the extent the options are reasonably assured of being exercised. The lease agreements do not provide for residual value guarantees and have no restrictions or covenants that would impact dividends or require incurring additional financial obligations.

The implementation of the new standard resulted in recognition of a right-of-use asset of $12.0 million and a lease liability of $11.9 million at the date of adoption, which is related to the Company’s lease of premises used in operations. The Company used a discount rate of 4.5% in determining the right-of-use asset and lease liability as of January 1, 2020.

Information related to the Company's operating leases is presented below:

			September 30, 2020
Operating leases right of use assets			$	14,619
Operating leases liabilities			$	15,756
Weighted average remaining lease term (in years)			6.14
Weighted average discount rate			4.34		%

The components of lease expense included in occupancy expenses for the three and nine months ended September 30, 2020, were as follows:

			Three Months Ended September 30, 2020						Nine Months Ended September 30, 2020
Operating lease cost			$	851					$	2,333
Short-term lease cost			2						2
Variable lease cost			98						276
Total lease cost			$	951					$	2,611

The Company does not separate lease and non-lease components and instead elects to account for them as a single lease component. Variable lease cost primarily represents variable payments such as common area maintenance, utilities, and property taxes.

Lease expense for the three and nine months ended September 30, 2019, prior to the adoption of ASU 2016-02, was $669 and $2,039, respectively.

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SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

A maturity analysis of operating lease liabilities and a reconciliation of undiscounted cash flows to the total operating lease liability is as follows:

Lease payments due on or before						September 30, 2020
September 30, 2021						$	3,155
September 30, 2022						2,755
September 30, 2023						2,716
September 30, 2024						2,703
September 30, 2025						2,372
Thereafter						4,289
Total undiscounted cash flows						17,990
Discount on cash flows						(2,234)
Total lease liability						$	15,756

As of September 30, 2020, the Company entered into a five year lease with a related party that commences January 1, 2021 and has a base annual rental of $211,000, with a 2.5% per year increase. This lease may be terminated December 31, 2021 with a 90-day notice. As the lease has not yet commenced, it is not included in the lease payments due above.

NOTE 5 - DERIVATIVES

The Company utilizes interest rate swap agreements as part of its asset liability management strategy to help manage its interest rate risk position. The notional amount of the interest rate swaps does not represent amounts exchanged by the parties. The amount exchanged is determined by reference to the notional amount and other terms of the individual interest rate swap agreements.

Interest Rate Swaps Designated as Cash Flow Hedges

Interest rate swaps with notional amounts totaling $160,000 as of September 30, 2020 were designated as cash flow hedges of certain short-term interest-bearing liabilities and subordinated debentures, which are fully effective. As such, no amount of ineffectiveness has been included in net income. Therefore, the aggregate fair value of the swaps is recorded in other assets (liabilities) with changes in fair value recorded in other comprehensive income (loss). The amount included in accumulated other comprehensive income (loss) would be reclassified to current earnings should the hedges no longer be considered effective. The Company expects the hedges to remain fully effective during the remaining terms of the swap agreements. No gains or losses were reclassified from accumulated other comprehensive income into net income during the periods presented.

Summary information related to the interest rate swaps designated as cash flow hedges as of September 30, 2020, is as follows:

Notional amounts			$	160,000
Weighted average pay rates			2.050		%
Weighted average receive rates			0.390		%
Weighted average maturity			3.35 years
Unrealized losses			$	8,526

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SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

The following table reflects the cash flow hedges included in the Consolidated Balance Sheets as of September 30, 2020 and December 31, 2019, respectively:

			September 30, 2020												December 31, 2019
			Notional Amount						Fair Value						Notional Amount						Fair Value
Included in other liabilities:
Interest rate swaps related to:
Subordinated debentures			$	10,000					$	(750)					$	10,000					$	(439)
Short-term interest-bearing liabilities			150,000						(7,776)						100,000						(1,639)
Total included in other liabilities			$	160,000					$	(8,526)					$	110,000					$	(2,078)

The following table presents the net gains (losses) recorded in accumulated other comprehensive income and the Consolidated Statements of Income, net of tax, relating to the cash flow derivative instruments for the three and nine months ended September 30, 2020 and 2019, respectively:

			Amount of Gain (Loss) Recognized in Other Comprehensive Income (Loss)
			Three Months Ended September 30,												Nine Months Ended September 30,
			2020						2019						2020						2019
Interest rate swaps-subordinate debentures			$	51					$	(42)					$	(230)					$	(264)
Interest rate swaps-interest-bearing liabilities			324						(233)						(4,532)						(1,342)
			$	375					$	(275)					$	(4,762)					$	(1,606)

Fair Value Hedges

Summary information related to the fair value hedges as of September 30, 2020, is as follows:

Notional amounts			$	19,345
Weighted average pay rates			3.51		%
Weighted average receive rates			1.21		%
Weighted average maturity			8.34 years
Unrealized losses			$	1,690

The following table reflects the fair value hedges included in the Consolidated Balance Sheets as of September 30, 2020 and December 31, 2019, respectively:

			September 30, 2020												December 31, 2019
			Notional Amount						Fair Value						Notional Amount						Fair Value
Included in other liabilities:
Interest rate swaps related to investments			19,345						(1,690)						19,605						(630)
Total included in other liabilities			$	19,345					$	(1,690)					$	19,605					$	(630)

The following table reflects the fair value hedges and the underlying hedged items included in the Consolidated Statements of Income for the three and nine months ended September 30, 2020 and 2019, respectively:

									Three Months Ended September 30,												Nine Months Ended September 30,
Item			Location						2020						2019						2020						2019
Interest rate swaps - securities			Interest on investment securities, nontaxable						$	(118)					$	(20)					$	(243)					$	(21)
Hedged item - securities			Interest on investment securities, nontaxable						$	118					$	20					$	243					$	21

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SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

NOTE 6 - STOCK-BASED COMPENSATION

In 2006, the board of directors and shareholders of the Bank (then known as "Commerce Union Bank") approved the Commerce Union Bank Stock Option Plan (the “Plan”). The Plan provided for the granting of stock options for up to 625,000 shares of Bank common stock to employees and organizers and authorized the issuance of Bank common stock upon the exercise of such options. As part of the Bank's reorganization into a holding company corporate structure in 2012, all Bank options were replaced with Commerce Union Bancshares, Inc. (now known as "Reliant Bancorp, Inc.") options with no change in terms.

On March 10, 2015, the shareholders of Reliant Bancorp (then known as "Commerce Union Bancshares, Inc.") approved the Commerce Union Bancshares, Inc. Amended and Restated Stock Option Plan (the “A&R Plan”), which permits the grant of awards with respect to up to 1,250,000 shares of Reliant Bancorp common stock in the form of stock options. As part of the merger of Commerce Union Bank and Reliant Bank in 2015, all outstanding stock options of Reliant Bank were converted to stock options of Reliant Bancorp (then known as "Commerce Union Bancshares, Inc.") under the A&R Plan. Under the A&R Plan, stock option awards may be granted in the form of incentive stock options or non-statutory stock options, and are generally exercisable for up to 10 years following the date such option awards are granted. Exercise prices of incentive stock options must be equal to or greater than the fair market value of Reliant Bancorp's common stock on the grant date.

    

On June 18, 2015, the shareholders of Reliant Bancorp (then known as "Commerce Union Bancshares, Inc.") approved the Commerce Union Bancshares, Inc. 2015 Equity Incentive Plan, which reserves up to 900,000 shares of Reliant Bancorp common stock to be subject to awards under the plan, including awards in the form of stock options, restricted stock grants, performance-based awards, and other awards denominated or payable by reference to or based on or related to Reliant Bancorp common stock.

The Company has recognized stock-based compensation expense, within salaries and employee benefits for employees, and within other non-interest expense for directors, in the consolidated statement of income as follows:

			Three Months Ended September 30,												Nine Months Ended September 30,
			2020						2019						2020						2019
Stock-based compensation expense before income taxes			$	349					$	337					$	1,183					$	867
Less: deferred tax benefit			(91)						(88)						(309)						(227)
Reduction of net income			$	258					$	249					$	874					$	640

Common Stock Options

    

A summary of stock option activity for the nine months ended September 30, 2020 is as follows:

			Shares						Weighted Average Exercise Price						Weighted Average Remaining Contractual Term						Aggregate Intrinsic Value
Outstanding at January 1, 2020			149,293						$	18.81					6.68 years						$	553
Granted			—						$	—
Exercised			(6,544)						$	12.03											26
Forfeited or expired			(20,007)						$	21.02
Outstanding at September 30, 2020			122,742						$	18.81					5.95 years						$	73
Exercisable at September 30, 2020			83,042						$	16.43					5.03 years						$	73

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SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

			Shares						Weighted Average Grant-Date Fair Value
Non-vested options at January 1, 2020			74,600						$6.08
Granted			—						$—
Vested			(23,400)						$5.23
Forfeited			(11,500)						$6.37
Non-vested options at September 30, 2020			39,700						$6.56

    

As of September 30, 2020, there was $235 of unrecognized future compensation expense to be recognized related to stock options. The cost is expected to be recognized over a weighted-average period of 3.08 years.

Restricted Stock and Restricted Stock Unit Awards

The following table shows the activity related to non-vested restricted stock and restricted stock unit awards for the nine months ended September 30, 2020:

			Restricted Stock Units												Restricted Stock
			Underlying Shares						Weighted Average Grant-Date Fair Value						Shares						Weighted Average Grant-Date Fair Value
Non-vested units/shares at January 1, 2020			47,750						$	23.30					90,960						$	25.31
Granted			102,400						14.02						—						—
Vested			(12,500)						22.57						(48,550)						23.99
Forfeited			(2,000)						10.25						—
Non-vested units/shares at September 30, 2020			135,650						$	16.55					42,410						$	26.82

As of September 30, 2020, there was $2,096 of unrecognized compensation cost related to non-vested restricted stock and restricted stock unit awards. The cost is expected to be recognized over a weighted-average period of 2.11 years. The total fair value of shares vested during the nine months ended September 30, 2020 was $970.

NOTE 7 - REGULATORY CAPITAL REQUIREMENTS

The Company and the Bank are subject to regulatory capital requirements administered by the federal and state banking agencies. Capital adequacy guidelines and, additionally for banks, prompt corrective action regulations, involve quantitative measures of assets, liabilities, and certain off-balance-sheet items calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by regulators. Failure to meet capital requirements can initiate regulatory action or affect the amount of dividends the Company and the Bank may distribute. Management believes that as of September 30, 2020, the Company and the Bank met all capital adequacy requirements to which they were subject.

Capital amounts and ratios for Reliant Bancorp and the Bank (required) are presented below as of September 30, 2020 and December 31, 2019.

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SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

			Actual Regulatory Capital												Minimum Required Capital Including Capital Conservation Buffer												To Be Well Capitalized Under Prompt Corrective Action Provisions
			Amount						Ratio						Amount						Ratio						Amount						Ratio
September 30, 2020
Reliant Bancorp
Tier I leverage			$	253,534					8.72		%				$	116,300					4.00		%				$	145,375					5.00		%
Common equity tier I			241,786						9.77		%				173,235						7.00		%				160,861						6.50		%
Tier I risk-based capital			253,534						10.25		%				210,248						8.50		%				197,880						8.00		%
Total risk-based capital			332,434						13.44		%				259,714						10.50		%				247,347						10.00		%
Bank
Tier I leverage			$	304,376					10.48		%				$	116,174					4.00		%				$	145,218					5.00		%
Common equity tier I			304,376						12.33		%				172,801						7.00		%				160,458						6.50		%
Tier I risk-based capital			304,376						12.33		%				209,829						8.50		%				197,486						8.00		%
Total risk-based capital			324,635						13.15		%				259,214						10.50		%				246,871						10.00		%
December 31, 2019
Reliant Bancorp
Tier I leverage			$	176,748					9.74		%				$	72,586					4.00		%				$	90,733					5.00		%
Common equity tier I			165,063						10.55		%				109,520						7.00		%				101,698						6.50		%
Tier I risk-based capital			176,748						11.30		%				132,952						8.50		%				125,131						8.00		%
Total risk-based capital			249,751						15.97		%				164,207						10.50		%				156,388						10.00		%
Bank
Tier I leverage			$	186,734					10.30		%				$	72,518					4.00		%				$	90,648					5.00		%
Common equity tier I			186,734						11.95		%				109,384						7.00		%				101,571						6.50		%
Tier I risk-based capital			186,734						11.95		%				132,823						8.50		%				125,010						8.00		%
Total risk-based capital			199,737						12.79		%				163,975						10.50		%				156,167						10.00		%

NOTE 8 - EARNINGS PER SHARE

The following is a summary of the components comprising basic and diluted earnings per common share of stock ("EPS"):

			Three Months Ended												Nine Months Ended
			September 30,												September 30,
			2020						2019						2020						2019
Basic EPS Computation
Net income attributable to common shareholders			$	11,531					$	4,000					$	19,186					$	12,063
Weighted average common shares outstanding			16,587,274						11,104,918						15,053,087						11,247,921
Basic earnings per common share			$	0.70					$	0.36					$	1.27					$	1.07
Diluted EPS Computation
Net income attributable to common shareholders			$	11,531					$	4,000					$	19,186					$	12,063
Weighted average common shares outstanding			16,587,274						11,104,918						15,053,087						11,247,921
Dilutive effect of stock options, restricted stock shares and units, and employee stock purchase plan			62,399						72,449						67,616						66,445
Adjusted weighted average common shares outstanding			16,649,673						11,177,367						15,120,703						11,314,366
Diluted earnings per common share			$	0.69					$	0.36					$	1.27					$	1.07

NOTE 9 - FAIR VALUES OF ASSETS AND LIABILITIES

 

Financial accounting standards relating to fair value measurements establish a framework for measuring fair value. That framework provides a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are described below:

Level 1    Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities in active markets that the Company has the ability to access.

Level 2    Inputs to the valuation methodology include:

•Quoted prices for similar assets or liabilities in active markets;

•Quoted prices for identical or similar assets or liabilities in inactive markets;

•Inputs other than quoted prices that are observable for the asset or liability; and

•Inputs that are derived principally from or corroborated by the observable market data by correlation or other means.

If the asset or liability has a specified (contractual) term, the Level 2 input must be observable for substantially the full term of the asset or liability.

Level 3    Inputs to the valuation methodology are unobservable and reflect an entity’s own assumptions about the assumptions that market participants would use in pricing the assets or liabilities.

An asset’s or liability’s fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques should maximize the use of observable inputs and minimize the use of unobservable inputs.

Following is a description of the valuation methodologies used for assets and liabilities measured at fair value on a recurring basis:

Securities available for sale: The fair values of securities available for sale are determined by obtaining quoted prices on nationally recognized securities exchanges (Level 1 inputs) or matrix pricing, which is a mathematical technique widely used in the industry to value debt securities without relying exclusively on quoted prices for the specific securities but rather by relying on the securities’ relationship to other benchmark quoted securities (Level 2 inputs). The Company obtains fair value measurements for securities available for sale from an independent pricing service. The fair value measurements consider observable data that may include benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers, cash flows and reference data, including market research publications, among other things.

Interest rate swaps: The fair values of interest rate swaps and fair value hedges are determined based on discounted future cash flows.

Certain assets and liabilities are measured at fair value on a nonrecurring basis; that is, the instruments are not measured at fair value on an ongoing basis, but are subject to fair value adjustments in certain circumstances (for example, when there is evidence of impairment). Assets and liabilities measured at fair value on a nonrecurring basis include the following:

Impaired Loans: The fair value of an impaired loan with specific allocations of the allowance for loan losses is generally based on the present value of expected payments using the loan’s effective rate as the discount rate or recent real estate appraisals. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are routinely made in the appraisal process by the

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(Dollar amounts in thousands except per share amounts)

appraisers to adjust for differences between the comparable sales and income data available. Such adjustments are typically significant and result in a Level 3 classification of the inputs for determining fair value.

Other Real Estate: The fair value of other real estate is generally based on recent real estate appraisals less estimated disposition cost. These appraisals may use a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are routinely made in the appraisal process by the appraisers to adjust for differences between the comparable sales and income data available. Such adjustments are typically significant and result in Level 3 classification of the inputs for determining fair value.

The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while the Company’s valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different estimate of fair value at the reporting date.

Fair value estimates involve uncertainties and matters of significant judgment regarding interest rates, credit risk, prepayments, and other factors, especially in the absence of broad markets for particular items. Changes in assumptions or in market conditions could significantly affect the estimates.

The following table sets forth the Company’s major categories of assets and liabilities measured at fair value on a recurring basis, by level within the fair value hierarchy, as of September 30, 2020 and December 31, 2019:

			Fair Value						Quoted Prices in Active Markets for Identical Assets (Level 1)						Significant Other Observable Inputs (Level 2)						Significant Unobservable Inputs (Level 3)
September 30, 2020
Assets
U. S. Treasury and other U. S. government agencies			$	12,117					$	—					$	12,117					$	—
State and municipal			190,623						—						190,623						—
Corporate bonds			15,809						—						15,809						—
Mortgage backed securities			40,376						—						40,376						—
Asset backed securities			14,968						—						14,968						—
Liabilities
Derivative liabilities			$	10,216					$	—					$	10,216					$	—
December 31, 2019
Assets
U. S. Treasury and other U. S. government agencies			$	59					$	—					$	59					$	—
State and municipal			196,660						—						196,660						—
Corporate bonds			7,845						—						7,845						—
Mortgage backed securities			37,761						—						37,761						—
Asset backed securities			17,968						—						17,968						—
Derivative assets			688						—						688						—
Liabilities
Derivative liabilities			$	3,396					$	—					$	3,396					$	—

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

The following table sets forth the Company’s major categories of assets and liabilities measured at fair value on a nonrecurring basis, by level within the fair value hierarchy, as of September 30, 2020 and December 31, 2019:

			Fair Value						Quoted Prices in Active Markets for Identical Assets (Level 1)						Significant Other Observable Inputs (Level 2)						Significant Unobservable Inputs (Level 3)
September 30, 2020
Assets
Impaired loans			$	141					$	—					$	—					$	141
Other real estate			1,326						—						—						1,326
Other repossessions			1,603						—						—						1,603
December 31, 2019
Assets
Impaired loans			$	553					$	—					$	—					$	553
Other real estate			750						—						—						750
Other repossessions			—						—						—						—

The following table presents additional quantitative information about assets measured at fair value on a nonrecurring basis and for which we have utilized Level 3 inputs to determine fair value at September 30, 2020 and December 31, 2019:

Valuation Techniques (1)

Significant Unobservable Inputs

Range (Weighted Average)

Impaired loans

Appraisal

Estimated costs to sell

10%

Other real estate

Appraisal

Estimated costs to sell

10%

Other repossessions

Third-party guidelines

Estimated costs to sell

10%

(1)The fair value is generally determined through independent appraisals of the underlying collateral, which may include Level 3 inputs that are not identifiable, or by using the discounted cash flow method if the loan is not collateral dependent. Estimated cash flows change and appraised values of the assets or collateral underlying the loans will be sensitive to changes.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

Carrying amounts and estimated fair values of financial instruments not reported at fair value at September 30, 2020 and December 31, 2019 were as follows:

September 30, 2020			Carrying Amount						Estimated Fair Value						Quoted Prices in Active Markets for Identical Assets (Level 1)						Significant Other Observable Inputs (Level 2)						Significant Unobservable Inputs (Level 3)
Financial assets
Cash and due from banks			$	14,050					$	14,050					$	14,050					$	—					$	—
Federal funds sold			12,273						12,273						—						12,273						—
Loans, net			2,338,064						2,336,300						—						—						2,336,300
Mortgage loans held for sale			99,587						99,587						—						99,587						—
Accrued interest receivable			14,615						14,615						—						14,615						—
Restricted equity securities			17,367						17,367						—						17,367						—
Financial liabilities
Deposits			$	2,565,502					$	2,571,305					$	—					$	—					$	2,571,305
Accrued interest payable			3,744						3,744						—						3,744						—
Subordinate debentures			70,389						69,237						—						—						69,237
Federal Home Loan Bank advances			40,555						40,887						—						—						40,887

December 31, 2019
Financial assets
Cash and due from banks			$	7,953					$	7,953					$	7,953					$	—					$	—
Federal funds sold			52						52						—						52						—
Loans, net			1,397,374						1,383,719						—						—						1,383,719
Mortgage loans held for sale			37,476						38,379						—						38,379						—
Accrued interest receivable			7,188						7,188						—						7,188						—
Restricted equity securities			11,279						11,279						—						11,279						—
Financial liabilities
Deposits			$	1,584,453					$	1,582,781					$	—					$	—					$	1,582,781
Accrued interest payable			2,022						2,022						—						2,022						—
Subordinate debentures			70,883						71,454						—						—						71,454
Federal Home Loan Bank advances			10,737						10,755						—						—						10,755

The methods and assumptions used to estimate fair value are described as follows:

Carrying amount is the estimated fair value for cash and cash equivalents, accrued interest receivable and payable, restricted equity securities, federal funds sold or purchased, demand deposits, and variable rate loans or deposits that re-price frequently and fully. For fixed rate loans or deposits and for variable rate loans or deposits with infrequent re-pricing or re-pricing limits, fair value is based on discounted cash flows using current market rates applied to the estimated life and credit risk. Fair value of debt is based on discounted cash flows using current rates for similar financing.

NOTE 10 - SEGMENT REPORTING

The Company has two reportable business segments: commercial banking and residential mortgage banking. Segment information is derived from the internal reporting system utilized by management. Revenues and expenses for segments reflect those which can be specifically identified and have been assigned based on internally developed allocation methods. Financial results have been presented, to the extent practicable, as if each segment operated on a stand-alone basis.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

Commercial Banking provides deposit and lending services to consumer and business customers within our primary geographic markets. Our customers are serviced through branch locations, ATMs, online banking, and mobile banking.

Residential Mortgage Banking originates traditional first lien residential mortgage loans and first lien home equity lines of credit throughout the United States. The traditional first lien residential mortgage loans are typically underwritten to government agency standards and sold to third-party secondary market mortgage investors. The home equity lines of credit are typically sold to participating banks or other investor groups and are underwritten to their standards.

During the second quarter of 2019, RMV began acquiring loans from approved correspondent lenders and reselling them in the secondary market. These loans are not government agency-qualified loans and are of higher risk, such as jumbo loans or senior position home equity lines of credit.

The following presents summarized results of operations for the Company’s business segments for the periods indicated:

			Three Months Ended September 30, 2020
			Commercial Banking						Residential Mortgage Banking						Elimination Entries						Consolidated
Net interest income			$	29,729					$	808					$	—					$	30,537
Provision for loan losses			1,500						—						—						1,500
Noninterest income			2,218						3,797						(14)						6,001
Noninterest expense (excluding merger expense)			16,065						4,190						—						20,255
Merger expense			78						—						—						78
Income tax expense (benefit)			2,773						27						—						2,800
Net income (loss)			11,531						388						(14)						11,905
Noncontrolling interest in net income of subsidiary			—						(388)						14						(374)
Net income attributable to common shareholders			$	11,531					$	—					$	—					$	11,531

			Three Months Ended September 30, 2019
			Commercial Banking						Residential Mortgage Banking						Elimination Entries						Consolidated
Net interest income			$	13,910					$	154					$	—					$	14,064
Provision for loan losses			606						—						—						606
Noninterest income			1,375						1,377						8						2,760
Noninterest expense (excluding merger expense)			9,726						3,022						—						12,748
Merger expense			299						—						—						299
Income tax expense (benefit)			654						(97)						—						557
Net income (loss)			4,000						(1,394)						8						2,614
Noncontrolling interest in net loss of subsidiary			—						1,394						(8)						1,386
Net income attributable to common shareholders			$	4,000					$	—					$	—					$	4,000

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

			Nine Months Ended September 30, 2020
			Commercial Banking						Residential Mortgage Banking						Elimination Entries						Consolidated
Net interest income			$	75,933					$	1,677					$	—					$	77,610
Provision for loan losses			7,400						—						—						7,400
Noninterest income			6,102						7,601						3						13,706
Noninterest expense (excluding merger expense)			44,961						10,340						—						55,301
Merger expense			6,895						—						—						6,895
Income tax expense (benefit)			3,593						(69)						—						3,524
Net income (loss)			19,186						(993)						3						18,196
Noncontrolling interest in net loss of subsidiary			—						993						(3)						990
Net income attributable to common shareholders			$	19,186					$	—					$	—					$	19,186

			Nine Months Ended September 30, 2019
			Commercial Banking						Residential Mortgage Banking						Elimination Entries						Consolidated
Net interest income			$	40,986					$	352					$	—					$	41,338
Provision for loan losses			806						—						—						806
Noninterest income			4,226						3,187						(17)						7,396
Noninterest expense (excluding merger expense)			30,300						8,317						—						38,617
Merger expense			302						—						—						302
Income tax expense (benefit)			1,741						(311)						—						1,430
Net income (loss)			12,063						(4,467)						(17)						7,579
Noncontrolling interest in net loss of subsidiary			—						4,467						17						4,484
Net income attributable to common shareholders			$	12,063					$	—					$	—					$	12,063

NOTE 11 – INCOME TAXES

Income tax expense for the three and nine months ended September 30, 2020 totaled $2,800 and $3,524, respectively, compared to $557 and $1,430, respectively, for the three and nine months ended September 30, 2019. The effective tax rate for the three and nine months ended September 30, 2020 was 19.0% and 16.2%, respectively, compared to 17.6% and 15.9%, respectively, for the three and nine months ended September 30, 2019.

NOTE 12 - BUSINESS COMBINATIONS

Tennessee Community Bank Holdings, Inc.

Effective January 1, 2020, Reliant Bancorp completed the acquisition of TCB Holdings pursuant to the Agreement and Plan of Merger, dated September 16, 2019 (the “TCB Holdings Agreement”), by and among Reliant Bancorp, TCB Holdings, and Community Bank & Trust, a Tennessee-chartered commercial bank and wholly owned subsidiary of TCB Holdings (“CBT”). On the terms and subject to the conditions set forth in the TCB Holdings Agreement, TCB Holdings merged with and into Reliant Bancorp (the “TCB Holdings Transaction”), with Reliant Bancorp as the surviving corporation. Immediately following the TCB Holdings Transaction, CBT merged with and into the Bank, with the Bank continuing as the surviving banking corporation. Pursuant to the TCB Holdings Agreement, at the effective time of the TCB Holdings Transaction, each outstanding share of TCB Holdings common stock, par value $1.00 per share (other than certain excluded shares), was converted into and canceled in exchange for the right to receive (i) $17.13 in cash, without interest, and (ii) 0.769 shares of the Reliant Bancorp’s common stock, par value $1.00 per share (“Reliant Bancorp Common Stock”). The aggregate consideration payable by Reliant

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

Bancorp in respect of shares of TCB Holdings common stock as consideration for the TCB Holdings Transaction was 811,210 shares of Reliant Bancorp Common Stock and approximately $18,073 in cash. Reliant Bancorp did not issue fractional shares of Reliant Bancorp Common Stock in connection with the TCB Holdings Transaction, but paid cash in lieu of fractional shares based on the volume weighted average closing price per share of the Reliant Bancorp Common Stock on The Nasdaq Capital Market for the 10 consecutive trading days ending on and including December 30, 2019 (calculated as $22.36). At the effective time of the TCB Holdings Transaction, each outstanding option to purchase TCB Holdings common stock was canceled in exchange for a cash payment in an amount equal to the product of (i) $34.25 minus the per share exercise price of the option multiplied by (ii) the number of shares of TCB Holdings common stock subject to the option (to the extent not previously exercised). Reliant Bancorp paid aggregate consideration to holders of unexercised options of approximately $430. All shares of Reliant Bancorp’s common stock outstanding immediately prior to the TCB Holdings Transaction were unaffected by the TCB Holdings Transaction.

The following table details the financial impact of the TCB Holdings Transaction, including the calculation of the purchase price, the allocation of the purchase price to the fair values of net assets assumed and goodwill recognized:

Calculation of Purchase Price
Shares of Tennessee Community Bank Holdings, Inc. common stock outstanding as of January 1, 2020						1,055,041
Exchange ratio for Reliant Bancorp, Inc. common stock						0.769
Reliant Bancorp, Inc. common stock shares issued						811,210
Reliant Bancorp, Inc. share price at January 1, 2020						$	22.24
Estimated value of Reliant Bancorp, Inc. shares issued						18,041
Cash settlement for Tennessee Community Bank Holdings, Inc. common stock ($17.13 per share)						18,073
Cash settlement for Tennessee Community Bank Holdings, Inc.'s 26,450 outstanding stock options ($34.25 settlement price less weighted average exercise price of $18.00)						430
Cash settlement for Reliant Bancorp, Inc. fractional shares ($22.36 per pro rata fractional share)						3
Estimated fair value of Tennessee Community Bank Holdings, Inc.						$	36,547

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

Allocation of Purchase Price
Total consideration above			$	36,547
Fair value of assets acquired and liabilities assumed
Cash and cash equivalents			11,026
Investment securities available for sale			56,336
Loans, net of unearned income			171,445
Accrued interest receivable			948
Premises and equipment			6,401
Cash surrender value of life insurance contracts			5,629
Restricted equity securities			909
Core deposit intangible			3,617
Other assets			833
Deposits			(210,538)
Deferred tax liability			(337)
Borrowings			(58)
FHLB advances			(13,102)
Other liabilities			(3,682)
Total fair value of net assets acquired			29,427
Goodwill			$	7,120

CBT was a Tennessee-based full-service community bank with operations in Ashland City, Kingston Springs, Pegram, Pleasant View, and Springfield, Tennessee. These communities lie on the northwest perimeter of Nashville, Tennessee.

First Advantage Bancorp

Effective April 1, 2020, Reliant Bancorp completed the acquisition of FABK pursuant to the Agreement and Plan of Merger, dated October 22, 2019 (the “FABK Agreement”), by and among Reliant Bancorp, FABK, and PG Merger Sub, Inc., a Tennessee corporation and wholly owned subsidiary of Reliant Bancorp ("Merger Sub"). On the terms and subject to the conditions set forth in the FABK Agreement, Merger Sub merged with and into FABK (the "FABK Transaction"), with FABK as the surviving corporation, followed immediately by the merger of FABK with and into Reliant Bancorp, with Reliant Bancorp as the surviving corporation. Immediately following the merger of FABK into Reliant Bancorp, First Advantage Bank, a Tennessee-chartered commercial bank and wholly owned subsidiary of FABK ("FAB"), merged with and into the Bank, with the Bank continuing as the surviving banking corporation. Pursuant to the FABK Agreement, at the effective time of the FABK Transaction, each outstanding share of FABK common stock, par value $0.01 per share (the “FABK Common Stock”), other than certain excluded shares, was converted into the right to receive (i) 1.17 shares of Reliant Bancorp Common Stock and (ii) $3.00 in cash, without interest. In lieu of the issuance of fractional shares of Reliant Bancorp Common Stock, Reliant Bancorp agreed to pay cash in lieu of fractional shares based on the volume-weighted average closing price per share of Reliant Bancorp Common Stock on The Nasdaq Capital Market for the 10 consecutive trading days ending on and including March 30, 2020 (calculated as $11.74). Based on the April 1, 2020 opening price for Reliant Bancorp Common Stock of $11.27 per share and 3,935,165 shares of FABK Common Stock outstanding on April 1, 2020, the consideration for the FABK Transaction was approximately $64,094, in the aggregate, or $16.28 per share of FABK Common Stock.

The following table details the financial impact of the FABK Transaction, including the calculation of the purchase price, the allocation of the purchase price to the fair values of net assets assumed and goodwill recognized:

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

Calculation of Purchase Price
Shares of First Advantage Bancorp common stock outstanding as of April 1, 2020			3,935,165
Conversion of restricted stock units to shares of common stock of First Advantage Bancorp as of April 1, 2020			2,000
Total First Advantage Bancorp common stock outstanding as of April 1, 2020			3,937,165
Exchange ratio for Reliant Bancorp, Inc. common stock			1.17
Reliant Bancorp, Inc. common stock shares issued			4,606,483
Remove fractional shares			(64)
Reliant Bancorp, Inc. common stock shares issued			4,606,419
Reliant Bancorp, Inc. share price at April 1, 2020			$	11.27
Estimated value of Reliant Bancorp, Inc. shares issued			51,914
Cash settlement for Reliant Bancorp, Inc. fractional shares ($11.74 per pro rata fractional share)			1
Cash settlement for First Advantage Bancorp common stock ($3.00 per share)			11,805
Cash settlement for First Advantage Bancorp restricted stock units ($3.00 per share)			6
Cash settlement for First Advantage Bancorp's 34,800 outstanding stock options ($30.00 settlement price less weighted average exercise price of $19.44)			368
Estimated fair value of First Advantage Bancorp			$	64,094

Allocation of Purchase Price
Total consideration above			$	64,094
Fair value of assets acquired and liabilities assumed
Cash and cash equivalents			11,159
Investment securities available for sale			35,970
Loans, net of unearned income			622,423
Mortgage loans held for sale, net			5,878
Premises and equipment			7,905
Deferred tax asset			6,024
Cash surrender value of life insurance contracts			14,776
Other real estate and repossessed assets			1,259
Core deposit intangible			2,280
Operating lease right-of-use assets			6,536
Other assets			10,934
Deposits			(608,690)
Borrowings			(35,962)
Operating lease liabilities			(6,536)
Other liabilities			(10,606)
Total fair value of net assets acquired			63,350
Goodwill			$	744

FAB was a Tennessee-based full-service community bank headquartered in Clarksville, Tennessee. FAB operated branch offices in Montgomery, Davidson and Williamson counties, Tennessee and operated a loan production office in Knoxville, Tennessee primarily originating manufactured housing loans.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

SEPTEMBER 30, 2020 AND 2019 (UNAUDITED) AND DECEMBER 31, 2019

(Dollar amounts in thousands except per share amounts)

Supplemental Pro Forma Combined Condensed Statements of Income

Pro forma data for the three and nine months ended September 30, 2020 and 2019 in the table below presents information as if the TCB Holdings Transaction and FABK Transaction occurred on January 1, 2019. These results combine the historical results of TCB Holdings and FABK into the Company's consolidated statement of income and, while certain adjustments were made for the estimated impact of certain fair value adjustments, they are not indicative of what would have occurred had the acquisitions taken place on the indicated date nor are they intended to represent or be indicative of future results of operations. In particular, no adjustments have been made to eliminate the amount of TCB Holdings' or FABK's provision for credit losses for the first three and nine months of 2019 that may not have been necessary had the acquired loans been recorded at fair value as of the beginning of 2019. Additionally, these financials were not adjusted for non-recurring expenses, such as merger-related charges incurred by either the Company, TCB Holdings or FABK. The Company expects to achieve operating cost savings and other business synergies as a result of the acquisitions which are also not reflected in the pro forma amounts.

			Three Months Ended									Nine Months Ended
			September 30,									September 30,
			2020						2019			2020						2019
Revenue(1)			$	35,881					$	29,478		$	106,771					$	86,217
Net interest income			$	29,880					$	25,232		$	85,741					$	74,835
Net income attributable to common shareholders			$	11,117					$	9,182		$	17,715					$	28,545
(1) Net interest income plus noninterest income

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Item 2.    Management's Discussion and Analysis of Financial Condition and Results of Operations

Executive Summary

The following is a summary of the Company’s financial highlights and significant events for the nine months ended September 30, 2020:

•Net income attributable to common shareholders totaled $19.2 million, or $1.27 per diluted common share, for the nine months ended September 30, 2020 compared to $12.1 million, or $1.07 per diluted common share, during the same period in 2019.

•Merger expenses for the nine months ended September 30, 2020 totaled $6.9 million.

•Loans increased $940.7 million for the nine months ended September 30, 2020.

•Deposits increased $981.0 million for the nine months ended September 30, 2020.

•Asset quality remained strong with nonperforming assets to total assets of 0.32 percent.

•Successfully closed the TCB Holdings and FABK transactions as well as conversions with Community Bank & Trust and First Advantage Bank.

The following discussion and analysis is intended to assist in the understanding and assessment of significant changes and trends related to our financial position and operating results. This discussion and analysis should be read in conjunction with our consolidated financial statements and the related notes included elsewhere herein along with Reliant Bancorp's Annual Report on Form 10-K for the year ended December 31, 2019. Amounts in the narrative are shown in thousands, except for economic and demographic information, numbers of shares, per share amounts and as otherwise noted.

Acquisition of parent company of CBT

Effective January 1, 2020, Reliant Bancorp completed the acquisition of TCB Holdings. On the terms and subject to the conditions set forth in the TCB Holdings Agreement, TCB Holdings merged with and into Reliant Bancorp, with Reliant Bancorp as the surviving corporation. Immediately following the TCB Holdings Transaction, CBT merged with and into Reliant Bank, with Reliant Bank continuing as the surviving banking corporation. Pursuant to the TCB Holdings Agreement, at the effective time of the TCB Holdings Transaction, each outstanding share of TCB Holdings common stock, par value $1.00 per share (other than certain excluded shares), was converted into and canceled in exchange for the right to receive (i) $17.13 in cash, without interest, and (ii) 0.769 shares of Reliant Bancorp's common stock. The aggregate consideration payable by Reliant Bancorp in respect of shares of TCB Holdings common stock as consideration for the TCB Holdings Transaction was 811,210 shares of Reliant Bancorp Common Stock and approximately $18,073 in cash. Reliant Bancorp did not issue fractional shares of Reliant Bancorp Common Stock in connection with the TCB Holdings Transaction, but instead paid cash in lieu of fractional shares based on the volume weighted average closing price per share of the Reliant Bancorp Common Stock on The Nasdaq Capital Market for the 10 consecutive trading days ending on and including December 30, 2019 (calculated as $22.36). At the effective time of the TCB Holdings Transaction, each outstanding option to purchase TCB Holdings common stock was canceled in exchange for a cash payment in an amount equal to the product of (i) $34.25 minus the per share exercise price of the option multiplied by (ii) the number of shares of TCB Holdings common stock subject to the option (to the extent not previously exercised). Reliant Bancorp paid aggregate consideration to holders of unexercised options of approximately $430.

Acquisition of parent company of FAB

Effective April 1, 2020, Reliant Bancorp, completed the acquisition of FABK and FAB. In accordance with the terms of the FABK Agreement, (i) Merger Sub merged with and into FABK, with FABK being the surviving corporation and becoming a wholly-owned subsidiary of Reliant Bancorp, and (ii) immediately following the merger of FABK and Merger Sub, FABK merged with and into Reliant Bancorp, with Reliant Bancorp being the surviving corporation. Additionally, immediately following the merger of Reliant Bancorp and FABK, FAB merged with and into Reliant Bank, with Reliant Bank being the surviving bank.

As consideration for the FABK Transaction, each outstanding share of FABK Common Stock, other than certain excluded shares, at the effective time of the FABK Transaction converted into the right to receive (i) 1.17 shares of Reliant Bancorp Common Stock and (ii) $3.00 in cash, without interest. In lieu of the issuance of fractional shares of Reliant Bancorp Common Stock, Reliant Bancorp agreed to pay cash in lieu of fractional shares based on the volume-weighted average closing price per share of Reliant Bancorp Common Stock on The Nasdaq Capital Market for the 10 consecutive trading days ending on and including March 30, 2020 (calculated as $11.74). Reliant Bancorp paid aggregate consideration to holders of unexercised options of approximately $368. Based on the March 31, 2020 closing price for Reliant Bancorp Common Stock of $11.27 per

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share and 3,937,165 shares of FABK Common Stock outstanding on March 31, 2020, the consideration for the FABK Transaction was approximately $64,094, in the aggregate, or $16.28 per share of FABK Common Stock.

Formation of Reliant Risk Management, Inc.

Reliant Risk Management, Inc. is a wholly-owned insurance captive subsidiary of Reliant Bancorp, Inc. that began operations on June 1, 2020 as a Tennessee-based captive insurance company which insures Reliant Bancorp and the Bank against certain risks unique to their operations and for which insurance may not be currently available or economically feasible in today's insurance marketplace. It pools resources with several other similar insurance company subsidiaries of financial institutions to spread a limited amount of risk among themselves. Reliant Risk Management, Inc. is subject to regulations of the State of Tennessee and undergoes periodic examinations by the Tennessee Department of Commerce and Insurance.

Critical Accounting Policies

The accounting principles we follow and our methods of applying these principles conform to U.S. GAAP and with general practices within the banking industry. There have been no significant changes to our critical accounting policies as described in our Annual Report on Form 10-K for the year ended December 31, 2019. The following is a brief summary of the more significant policies.

Principles of Consolidation

The Company's consolidated financial statements as of and for the periods presented include the accounts of Reliant Bancorp, the Bank, Community First Trups Holding Company (a wholly owned subsidiary of Reliant Bancorp), Reliant Risk Management, Inc., Reliant Investment Holdings, LLC (a wholly owned subsidiary of the Bank), and RMV. All significant intercompany balances and transactions have been eliminated in consolidation. As described previously, effective January 1, 2020, Reliant Bancorp and TCB Holdings merged and effective April 1, 2020, Reliant Bancorp and First Advantage Bancorp merged.

During 2011, the Bank and another entity organized RMV. Under the RMV operating agreement, the non-controlling member receives 70% of the cash flow distributions of RMV, and the Bank receives 30% of the cash flow distributions, once the non-controlling member recovers its capital contributions to RMV. The non-controlling member is required to fund RMV’s losses in arrears via additional capital contributions to RMV. As of September 30, 2020, RMV's cumulative losses to date totaled $14,707. RMV will have to generate net income of at least this amount before the Bank will participate in future cash flow distributions.

Purchased Loans

The Company maintains an allowance for loan losses on purchased loans based on credit deterioration subsequent to the acquisition date. In accordance with the accounting guidance for business combinations, because we recorded all loans acquired from TCB Holdings and FABK at fair value as of the dates of the TCB Holdings Transaction and the FABK Transaction, respectively, we did not establish an allowance for loan losses on any of the loans we purchased as of the acquisition date as any credit deterioration evident in the loans was included in the determination of the acquisition date fair values. For purchased credit-impaired loans accounted for under ASC 310-30, management is required to establish an allowance for loan losses subsequent to the dates of acquisition by re-estimating expected cash flows on these loans on a quarterly basis, with any decline in expected cash flows due to a credit triggering impairment recorded as provision for loan losses. The allowance for loan losses established is the excess of the loan’s carrying value over the present value of projected future cash flows, discounted at the current accounting yield of the loan or the fair value of collateral (less estimated costs to sell) for collateral dependent loans. These cash flow evaluations are inherently subjective as they require material estimates, all of which may be susceptible to significant change. While the determination of specific cash flows involves estimates, each estimate is unique to the individual loan, and none is individually significant. For purchased non-credit-impaired loans acquired in the TCB Holdings Transaction and the FABK Transaction that are accounted for under ASC 310-20, the historical loss estimates are based on the historical losses experienced by the Bank for loans with similar characteristics as those acquired other than purchased credit-impaired loans. The Bank records an allowance for loan losses only when the calculated amount exceeds the remaining credit mark established at acquisition.

Allowance for Loan Losses

The allowance for loan losses ("allowance") is a valuation allowance for probable incurred credit losses. Loan losses are charged against the allowance when management believes the uncollectibility of a loan balance is confirmed. Subsequent

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recoveries, if any, are credited to the allowance. Management estimates the allowance balance required using historical loan loss experience, the nature and volume of the portfolio, information about specific borrower situations and estimated collateral values, current economic conditions (national and local), and other factors such as changes in interest rates, portfolio concentrations, changes in the experience, ability, and depth of the lending function, levels of and trends in charged-off loans, recoveries, past-due loans and volume and severity of classified loans. The allowance consists of specific and general components. The specific component relates to loans that are individually classified as impaired. The general component covers non-impaired loans and is based on historical loss experience adjusted for current factors. The entire allowance is available for any loan that, in management’s judgment, should be charged off as uncollectible.

A loan is impaired when full payment under the loan terms is not expected. All classified loans and loans on nonaccrual status are individually evaluated for impairment. Factors considered in determining if a loan is impaired include the borrower’s ability to repay amounts owed, collateral deficiencies, the risk rating of the loan and economic conditions affecting the borrower’s industry, among other things. If a loan is impaired, a portion of the allowance is allocated so that the loan is reported, net, at the present value of estimated future cash flows using the loan’s existing rate or at the fair value (less estimated costs to sell) of collateral if repayment is expected solely from the collateral. Interest payments on impaired loans are typically applied to principal unless the principal amount is deemed fully collectible, in which case interest is recognized on a cash basis. When recognition of interest income on a cash basis is appropriate, the amount of income recognized is limited to what would have been accrued on the remaining principal balance at the contractual rate. Cash payments received over this limit, and not applied to reduce the loan's remaining principal balance, are recorded as recoveries of prior charge-offs until these charge-offs have been fully recovered.

Fair Value of Financial Instruments

Fair values of financial instruments are estimated using relevant market information and other assumptions, as more fully disclosed in a separate note to our consolidated financial statements. Fair value estimates involve uncertainties and matters of significant judgment regarding interest rates, credit risk, prepayments, and other factors, especially in the absence of broad markets for particular items. Changes in assumptions or in market conditions could significantly affect the estimates.

Coronavirus (COVID-19) Impact

The following is a description of certain impacts the novel coronavirus (COVID-19) pandemic is having on our financial condition and results of operations and certain risks to our business that the pandemic creates or exacerbates.

Operational Impact

As part of our pandemic response, we have encouraged a significant portion of our employees to work from home. We have also extended virtual medical coverage to all employees as well as provided pay to employees who may have been exposed as they quarantine at home. We are encouraging virtual meetings and conference calls in place of in-person meetings, including our earnings call and investor meetings which were held virtually this quarter. We are promoting social distancing, frequent hand washing, thorough disinfection of all surfaces, and the use of masks or nose and mouth coverings have been mandated in all of our locations. We have reopened all branches for normal business hours. Banking center drive-ups, ATMs and online/mobile banking services continue to operate. Infection rates in the communities we serve vary by region and we will make prudent decisions for the safety of our colleagues and our clients.

Loan Modifications

Section 4013 of the CARES Act, which was signed into law on March 27, 2020, provides that financial institutions may elect to account for loan modifications occurring between March 1, 2020, and the earlier of December 31, 2020 and the 60th day after the end of the COVID-19 national emergency declared by President Trump, which are due to COVID-19 and where the borrower was current on contractual payments as of December 31, 2019, as not TDRs. Additionally, on April 7, 2020, federal banking regulators issued an Interagency Statement on Loan Modifications by Financial Institutions Working with Customers Affected by the Coronavirus (Revised), which replaced a prior interagency statement predating the CARES Act. The revised interagency statement encourages financial institutions to work prudently with borrowers that may be unable to meet their contractual payment obligations because of the effects of COVID-19. It also addresses loan modifications not meeting the criteria set forth in Section 4013 of the CARES Act or for which financial institutions elect not to apply Section 4013. With respect to these loan modifications, the revised interagency statement provides that short-term (e.g. six month) modifications made on a good faith basis in response to COVID-19 to borrowers who were current on their contractual payments at the time of implementation of a modification program are not TDRs.

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Through September 30, 2020, the Company had applied this guidance to approve initial modifications in April and May 2020 for loans with principal balances of $530.7 million. The majority of these modifications involved extensions of up to three months of either interest-only periods or full payment deferrals. Through September 30, 2020, further modifications were approved for $21.8 million of the loans previously modified. Additional modifications are likely to be executed in the fourth quarter of 2020.

			Initial Modification Requests through May 31, 2020			Subsequent Modification Requests through September 30, 2020
Commercial RE			$	291,232		$	6,179
Hospitality			96,047			14,211
Restaurant			54,067			—
C&I			34,851			1,448
Multifamily			14,757			—
Manufactured Housing			14,887			—
Church/Consumer/Medical			24,809			—
Total Modification Requests			$	530,650		$21,838

Paycheck Protection Program (PPP) and Liquidity

The CARES Act provided for over $2.0 trillion in emergency economic relief to individuals and businesses impacted by the COVID-19 pandemic. The CARES Act authorized the SBA to administer new loan programs, including, but not limited to, the guarantee of loans under a new 7(a) loan program called the "Paycheck Protection Program".

An eligible business could apply for a PPP loan in an amount up to the lesser of: (1) 2.5 times its average monthly “payroll costs” or (2) $10.0 million. PPP loans have: (a) an interest rate of 1.0%; (b) a two-year loan term to maturity for loans made prior to June 5, 2020, or a five-year loan term to maturity for loans made on or after June 5, 2020; and (c) principal and interest payments deferred for 10 months after the end of the borrower's loan forgiveness covered period. The SBA will guarantee 100% of the PPP loans made to eligible borrowers. The entire principal amount of the borrower’s PPP loan, including any accrued interest, is eligible to be reduced by the loan forgiveness amount under the PPP so long as employee and compensation levels of the business are maintained and 60% of the loan proceeds are used for payroll expenses, with the remaining 40% of the loan proceeds used for other qualifying expenses.

Through September 30, 2020, we had received SBA authorizations for 893 PPP loans totaling $83,290 and related fees of $3,296. Participation in the PPP will likely have an impact on the Company's asset mix and net interest margin for the remainder of 2020. At September 30, 2020, we had $93,000 in federal funds lines available and $337,000 of available borrowing capacity from correspondent banks. In addition, the Federal Reserve has implemented a liquidity facility available to financial institutions participating in the PPP. As such, the Company believes it has sufficient liquidity sources to continue to provide this important service to local businesses if and as additional funds are appropriated for the PPP.

As of September 30, 2020, the Bank's capital ratios were in excess of all regulatory requirements. While we believe that we have sufficient capital to withstand an extended economic recession brought about by the COVID-19 pandemic, our reported and regulatory capital ratios could be adversely impacted by future credit losses.

Asset Impairment

At September 30, 2020, our level of non-performing assets was not materially impacted by the economic pressures of COVID-19. We are closely monitoring credit risk and our exposure to increased loan losses resulting from the impact of COVID-19 on our commercial and other clients.

At this time, we do not believe there exists any impairment to our intangible assets, long-lived assets, right of use assets, or available-for-sale investment securities due to the COVID-19 pandemic. It is uncertain whether prolonged effects of the COVID-19 pandemic will result in future impairment charges related to any of the aforementioned assets.

Risks

See Part II , Item 1A. "Risk Factors" for more information.

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Allowance for Loan Loss

We are in regular communication with our customers to gain a better understanding of our highest risk exposures and probable defaults. In the third quarter of 2020 we recorded a provision expense of $1.5 million, which can be attributed to increased risk factors related to the COVID-19 pandemic as well as our loan growth. Our losses year-to-date remain low but we continue to build reserves as we anticipate future downgrades and defaults may eventually result in losses.

See Note 3 to the Company's financial statements included in Part I, Item 1. "Consolidated Financial Statements (Unaudited)" and Part I, Item 2. "Management’s Discussion and Analysis of Financial Condition and Results of Operations -Comparison of Balance Sheets at September 30, 2020 and December 31, 2019 - Allowance for Loan Losses” for more information.

COMPARISON OF RESULTS OF OPERATIONS FOR THE THREE AND NINE MONTHS ENDED SEPTEMBER 30, 2020 AND 2019

Effect of Mergers

Effective January 1, 2020, Reliant Bancorp completed the acquisition of TCB Holdings.

As a result of the TCB Holdings Transaction, on January 1, 2020, the Company:

•acquired total assets of $257 million;

•acquired total loans of $171 million; and

•acquired total deposits of $211 million.

Effective April 1, 2020, Reliant Bancorp completed the acquisition of FABK.

As a result of the FABK Transaction, on April 1, 2020, the Company:

•acquired total assets of $725 million;

•acquired total loans of $622 million; and

•acquired total deposits of $609 million.

Earnings

Net income attributable to common shareholders amounted to $11,531, or $0.70 per basic share, and $19,186, or $1.27 per basic share, for the three and nine months ended September 30, 2020, respectively, compared to $4,000, or $0.36 per basic share, and $12,063, or $1.07 per basic share, for the same periods in 2019, respectively. Diluted net income attributable to common shareholders was $0.69 and $1.27 per share for the three and nine months ended September 30, 2020, respectively, compared to $0.36 and $1.07 per share for the three and nine months ended September 30, 2019, respectively. The major components contributing to the change when compared to the prior year periods are an increase of 117.1% and 87.7% in net interest income for the three and nine months ended September 30, 2020, respectively, and an increase of 117.4% and 85.3% in noninterest income for the three and nine months ended September 30, 2020, respectively, and partially offset by an increase of 55.8% and 59.8% in noninterest expense (mainly driven by salaries and employee benefits) for the three and nine months ended September 30, 2020, and an increase of $894 and $6,594 in provision for loan losses for the three and nine months ended September 30, 2020, compared to the same periods in 2019. These and other components of earnings are discussed further below.

Non-GAAP Financial Measures

This Quarterly Report contains certain financial measures that are considered "non-GAAP financial measures" and should be read along with the accompanying tables. Generally, a non-GAAP financial measure is a numerical measure of a company's financial performance, financial position, or cash flows that excludes (or includes) amounts that are included in (or excluded from) the most directly comparable measure calculated and presented in accordance with U.S. GAAP. Management believes that non-GAAP financial measures provide a greater understanding of ongoing performance and operations and enhance comparability across periods. Non-GAAP financial measures should not, however, be considered as an alternative to any measure of performance or financial condition as determined in accordance with U.S. GAAP, and readers should consider the Company’s performance and financial condition as reported under U.S. GAAP and all other relevant information when assessing the performance or financial condition of the Company. Non-GAAP financial measures have limitations as analytical

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tools, and readers should not consider them in isolation or as a substitute for analysis of the Company's results or financial condition as reported under U.S. GAAP. Non-GAAP financial measures presented by the Company may not be comparable to non-GAAP financial measures (even those with the same or similar names) presented by other companies.

Company management uses, and believes that investors benefit from referring to, the following non-GAAP financial measures, among others, to assess the Company's operating results and trends: (i) tax-equivalent net interest income; (ii) adjusted net interest income; (iii) adjusted net interest margin; (iv) adjusted net income attributable to common shareholders; (v) adjusted net income attributable to common shareholders, per diluted share; (vi) adjusted return on average assets; (vii) adjusted return on average shareholders' equity; (viii) average tangible shareholders' equity; (ix) return on average tangible common equity (ROATCE); and (x) adjusted return on average tangible common equity. In the following table, the Company has provided a reconciliation of these non-GAAP financial measures to their most comparable U.S. GAAP financial measures.

			Three Months Ended									Nine Months Ended
			September 30, 2020			September 30, 2019						September 30, 2020			September 30, 2019
NON-GAAP FINANCIAL MEASURES
Adjusted net interest margin (1)(4)
Net interest income			$	30,537		$	14,064					$	77,610		$	41,338
Fully tax-equivalent adjustments:
Loans			$	760		$	302					$	1,865		$	908
Tax-exempt investment securities			$	347		$	424					$	1,095		$	1,320
Tax-equivalent net interest income (1)(2)			$	31,643		$	14,787					$	80,570		$	43,566
Purchase accounting adjustments			(3,868)			(383)						(9,773)			(1,163)
Adjusted net interest income (1)			$	27,775		$	14,404					$	70,797		$	42,403
Net interest margin (tax-equivalent basis)			4.54		%	3.51		%				4.30		%	3.57		%
Adjusted net interest margin			3.98		%	3.42		%				3.78		%	3.47		%
Adjusted net income attributable to common shareholders and related impact (1)
Net income attributable to common shareholders			$	11,531		$	4,000					$	19,186		$	12,063
Merger expenses			78			299						6,895			302
Tax effect of adjustments to net income			(20)			(27)						(1,617)			(79)
After tax adjustments to net income			58			272						5,278			223
Adjusted net income attributable to common shareholders			11,589			4,272						24,464			12,286
Net income attributable to common shareholders, per diluted share			$	0.69		$	0.36					$	1.27		$	1.07
Adjusted net income attributable to common shareholders, per diluted share			$	0.70		$	0.38					$	1.62		$	1.09
Return on average:
Return on average assets(3)			1.54		%	0.88		%				0.95		%	0.91		%
Adjusted return on average assets (1)(3)			1.55		%	0.94		%				1.21		%	0.93		%
Return on average shareholders' equity(3)			15.32		%	7.31		%				9.26		%	7.57		%
Adjusted return on average shareholders' equity (1)(3)			15.40		%	7.81		%				11.80		%	7.71		%
Average tangible shareholders' equity: (1)
Average shareholders' equity			299,435			217,087						276,846			213,107
Less: average goodwill			51,108			43,642						52,241			43,642
Less: average core deposit intangibles			12,104			7,598						11,801			7,863
Average tangible shareholders' equity			236,223			165,847						212,804			161,602
Return on average tangible common equity (ROATCE) (1)(3)			19.42		%	9.57		%				12.04		%	9.98		%
Adjusted ROATCE (1) (3)			19.52		%	10.22		%				15.36		%	10.16		%

(1) Not a recognized measure under U.S. GAAP.

(2) Amount includes tax equivalent adjustment to quantify the tax equivalent net interest income.

(3) Data has been annualized.

(4) Prior calculation of this ratio removed tax credits related to certain tax-preference-qualified loans and tax-exempt securities. The Company views these credits as normal course of business and as such removal is unnecessary.

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Net Interest Income

Net interest income represents the amount by which interest earned on various earning assets exceeds interest accrued on deposits and other interest-bearing liabilities and is the most significant component of our revenues. The following table sets forth the amount of our average balances, interest income or interest expense for each category of interest-earning assets and interest-bearing liabilities and the average interest rate for interest-earning assets and interest-bearing liabilities, net interest rate spread and net interest margin for the three and nine months ended September 30, 2020, and 2019 (dollars in thousands):

			Three Months Ended September 30, 2020												Three Months Ended September 30, 2019												Change
			Average Balances			Rates / Yields (%)			Interest Income / Expense						Average Balances			Rates / Yields (%)			Interest Income / Expense						Due to Volume			Due to Rate			Total
Interest earning assets
Loans			$	2,337,958		5.34			$	30,640					$	1,312,153		5.12			$	16,632					$	13,712		$	754		$	14,466
Loan fees			—			0.38			2,255						—			0.26			870						1,385			—			1,385
Loans with fees			2,337,958			5.73			32,895						1,312,153			5.38			17,502						15,097			754			15,850
Mortgage loans held for sale			103,729			3.98			1,037						18,271			5.71			263						828			(54)			774
Deposits with banks			57,909			0.47			68						33,410			1.96			165						2,642			(2,739)			(97)
Investment securities - taxable			67,569			2.35			399						73,115			2.98			549						(40)			(110)			(150)
Investment securities - tax-exempt			185,058			3.29			1,186						220,233			3.60			1,576						(303)			(164)			(467)
Federal funds sold and other			19,694			3.68			182						12,300			5.03			156						47			(21)			26
Total earning assets			2,771,917			5.29			35,767						1,669,482			4.98			20,211						18,271			(2,334)			15,937
Nonearning assets			209,770												136,973
Total assets			$	2,981,687											$	1,806,455
Interest bearing liabilities
Interest bearing demand			272,506			0.34			236						142,702			0.23			81						102			53			155
Savings and money market			786,589			0.59			1,162						350,440			1.10			976						296			(110)			186
Time deposits - retail			715,310			1.01			1,819						540,688			2.17			2,956						1,735			(2,872)			(1,137)
Time deposits - wholesale			223,095			1.64			917						294,750			2.52			1,872						(392)			(563)			(955)
Total interest-bearing deposits			1,997,500			0.82			4,134						1,328,580			1.76			5,885						1,741			(3,492)			(1,751)
Federal Home Loan Bank advances and other borrowings			40,567			1.02			104						14,216			1.84			66						50			(12)			38
Subordinated Debt			70,361			5.61			992						11,655			6.77			199						821			(28)			793
Total borrowed funds			110,928			3.93			1,096						25,871			4.06			265						871			(40)			831
Total interest-bearing liabilities			2,108,428			0.99			5,230						1,354,451			1.80			6,150						2,612			(3,532)			(920)
Net interest rate spread (%) / Net interest income ($)						4.30			$	30,537								3.18			$	14,061					$	15,658		$	1,198		$	16,857
Noninterest bearing deposits			536,353			(0.20)									227,502			(0.26)
Other noninterest bearing liabilities			37,471												7,415
Shareholders' equity			299,435												217,087
Total liabilities and shareholders' equity			$	2,981,687											$	1,806,455
Cost of funds						0.79												1.54
Net interest margin						4.54												3.51

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			Nine Months Ended September 30, 2020												Nine Months Ended September 30, 2019												Change
			Average Balances			Rates / Yields (%)			Interest Income / Expense						Average Balances			Rates / Yields (%)			Interest Income / Expense						Due to Volume			Due to Rate			Total
Interest earning assets
Loans			$	2,085,316		5.38			$	82,105					$	1,275,834		5.15			$	48,273					$	32,502		$	2,288		$	34,790
Loan fees			—			0.31			4,882						—			0.25			2,358						2,524			—			2,524
Loans with fees			2,085,316			5.69			86,987						1,275,834			5.40			50,631						35,026			2,288			37,314
Mortgage loans held for sale			79,000			4.08			2,412						14,534			5.65			614						1,918			(120)			1,798
Deposits with banks			55,212			0.59			242						30,487			1.75			399						(859)			702			(157)
Investment securities - taxable			69,490			1.88			978						74,330			2.95			1,639						(101)			(560)			(661)
Investment securities - tax-exempt			191,814			3.46			3,874						223,596			3.75			3,874						(839)			(456)			(1,295)
Federal funds sold and other			19,324			3.43			496						12,751			5.44			519						(81)			58			(23)
Total earning assets			2,500,156			5.23			94,989						1,631,532			5.00			57,676						35,064			1,912			36,976
Nonearning assets			203,703												138,926
Total assets			$	2,703,859											$	1,770,458
Interest bearing liabilities
Interest bearing demand			245,962			0.30			554						144,427			0.26			278						226			50			276
Savings and money market			659,673			0.74			3,668						374,876			1.13			3,156						938			(426)			512
Time deposits - retail			669,119			1.29			6,446						576,568			2.12			9,137						1,870			(4,561)			(2,691)
Time deposits - wholesale			218,109			1.92			3,131						191,133			2.60			3,713						682			(1,264)			(582)
Total interest-bearing deposits			1,792,863			1.03			13,799						1,287,004			1.69			16,284						3,717			(6,202)			(2,485)
Federal Home Loan Bank advances and other			92,264			0.89			613						31,378			2.28			534						115			(36)			79
Subordinated Debt			70,455			5.63			2,967						11,634			6.78			590						2,460			(83)			2,377
Total borrowed funds			162,719			2.94			3,580						43,012			3.49			1,124						2,575			(119)			2,456
Total interest-bearing liabilities			1,955,582			1.19			17,379						1,330,016			1.75			17,408						6,292			(6,321)			(29)
Net interest rate spread (%) / Net interest income ($)						4.04			$	77,610								3.25			$	43,566					$	28,772		$	8,232		$	37,005
Noninterest bearing deposits			439,521			(0.22)									219,106			(0.25)
Other noninterest bearing liabilities			31,910												8,229
Shareholders' equity			276,846												213,107
Total liabilities and shareholders' equity			$	2,703,859											$	1,770,458
Cost of funds						0.97												1.50
Net interest margin						4.30												3.57

Table Assumptions—Average loan balances are inclusive of nonperforming loans. Interest income and yields computed on tax-exempt instruments are on a tax-equivalent basis including a state tax credit included in loan yields of $751 and $1,834 for the three and nine months ended September 30, 2020, respectively, and $300 and $900 for the same periods in 2019. Net interest spread is calculated as the yields realized on interest-bearing assets less the rates paid on interest-bearing liabilities as well as tax-exempt securities adjustments of $347 and $1,095 for the three and nine months ended September 30, 2020, respectively, and $423 and $1,320 for the same periods in 2019. Net interest margin is the result of net interest income calculated on a tax-equivalent basis divided by average interest earning assets for the period. Changes in net interest income are attributed to either changes in average balances (volume change) or changes in average rates (rate change) for earning assets and sources of funds on which interest is received or paid. Volume change is calculated as change in volume times the previous rate while rate change is change in rate times the previous volume. Changes not due solely to volume or rate changes have been allocated to volume change and rate change in proportion to the relationship of the absolute dollar amounts of the change in each category.

Analysis—For the three and nine months ended September 30, 2020, we recorded net interest income on a tax-equivalent basis of approximately $31,643 and $80,570, respectively, which resulted in a net interest margin (net interest income divided by the average balance of interest-earning assets) of 4.54% and 4.30%, respectively. For the three and nine months ended September 30, 2019, we recorded net interest income on a tax-equivalent basis of approximately $14,787 and $43,566, respectively, which resulted in a net interest margin of 3.51% and 3.57%, respectively.

Our year-over-year average loan volume increased by approximately 63.4% for the nine months ended September 30, 2020 compared to the nine months ended September 30, 2019 and was mainly driven by the TCB Holdings Transaction and FABK

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Transaction. Our combined loan and loan fee yield increased from 5.38% to 5.73% for the three months ended September 30, 2020 compared to the same period in 2019 and increased from 5.40% to 5.69% for the nine months ended September 30, 2020 compared to the same period in 2019. The increased yield for the three and nine months ended September 30, 2020 is primarily attributable to the increased purchase accounting accretion from the two mergers as well as the increased fees from the PPP loans.

Our tax-equivalent yield on tax-exempt investments was 3.29% and 3.46% for the three and nine months ended September 30, 2020 compared to 3.60% and 3.75% for the same periods in 2019. Our year-over-year average tax-exempt investment volume decreased by 14.2% for the nine months ended September 30, 2020 compared to the same period in 2019 due to investment sales in the fourth quarter of 2019. Our year-over-year average taxable securities volume decreased by 6.5% for the nine months ended September 30, 2020 compared to the same period in 2019.

Our cost of funds decreased to 0.79% and 0.97% from 1.54% and 1.50%, respectively, for the three and nine months ended September 30, 2020 compared to the same periods in 2019. The decrease in our cost of funds was primarily driven by a decrease in the cost of our interest-bearing deposits and other interest-bearing liabilities due to the recent decrease in rates by the Federal Reserve. We experienced a 100.6% increase in our average noninterest-bearing deposits for the nine months ended September 30, 2020 when compared to the same period in 2019, which is largely attributable to the TCB Holdings Transaction and FABK Transaction.

The Bank strives to maintain a strong net interest margin that is insulated from changes in market interest rates. Our net interest margin, while generally considered fairly neutral, is currently subject to slight expansions in a rising rate environment and slight contractions in a falling rate environment. The Company has interest rate floors on certain loans and those floors will mitigate further declines in interest rates.

Provision for Loan Losses

We recorded a provision of $1,500 and $7,400 for loan losses for the three and nine months ended September 30, 2020, respectively, compared to $606 and $806 for the three and nine months ended September 30, 2019. The increase in provision expense for the three and nine months ended September 30, 2020 can be primarily attributed to the recent downturn in the economy due to COVID-19 while a portion is due to the growing loan portfolio. The acquired loan portfolios from First Advantage Bank and Community Bank & Trust are reserved for through fair value marks that consider both credit quality and changes in interest rates. See “Part I, Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations - Comparison of Balance Sheets at September 30, 2020 and December 31, 2019 - Allowance for Loan Losses” included herein for further analysis of the provision for loan losses.

Noninterest Income

Our noninterest income is composed of several components, some of which vary significantly between periods. The following is a summary of our noninterest income for the three and nine months ended September 30, 2020, and 2019 (dollars in thousands):

			Three Months Ended September 30,												Percent Increase			Nine Months Ended September 30,									Percent Increase
			2020			2019									(Decrease)			2020			2019						(Decrease)
Noninterest Income
Service charges and fees on deposits			$	1,583		$	976								62.2		%	$	4,172		$	2,796					49.2		%
Gains on mortgage loans sold, net			3,783			1,385									173.1		%	7,605			3,170						139.9		%
Securities gains, net			—			—									—		%	327			306						6.9		%
Other noninterest income:
Bank-owned life insurance			386			283									36.4		%	1,073			838						28.0		%
Brokerage revenue			65			13									400.0		%	142			33						330.3		%
Miscellaneous noninterest income			184			103									78.6		%	387			253						53.0		%
Total other noninterest income			635			399									59.1		%	1,602			1,124						42.5		%
Total noninterest income			$	6,001		$	2,760								117.4		%	$	13,706		$	7,396					85.3		%

The most significant reasons for the changes in total noninterest income during the three and nine months ended September 30, 2020 compared to the same periods in 2019 are the fluctuation in gains on mortgage loans sold, net as well as the increase in service charges mainly attributable to the two mergers. These and other factors impacting noninterest income are discussed further below.

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Service charges and fees on deposit accounts have increased due to the TCB Holdings Transaction, the FABK Transaction, and the concentrated effort to attract noninterest-bearing deposits. An increase in debit card fees makes up the majority of the 62.2% and 49.2% increase for the three and nine months ended September 30, 2020 as compared to the same period in 2019.

Securities gains and losses often fluctuate from period to period and can sometimes be attributable to various balance sheet risk strategies. During the nine months ended September 30, 2020, the Company sold securities totaling $103,901 with a gain of $327. During the nine months ended September 30, 2019, the Company sold securities classified as available for sale totaling $52,434 with a gain of $306. Securities were not sold in the three months ended September 30, 2020 or September 30, 2019.

Generally, mortgage-related revenue increases in lower interest rate environments and more robust housing markets and decreases in rising interest rate environments and more challenging housing markets. Mortgage-related revenue will fluctuate from quarter to quarter as the rate environment changes and as changes occur with our mortgage operations including but not limited to the number of loan originators employed and the channels available for loan sales of RMV’s products in the secondary markets. Gains on mortgage loans sold, net, amounted to $3,783 and $7,605 for the three and nine months ended September 30, 2020, respectively, compared to $1,385 and $3,170 for the same periods in the prior year. The increase in gains for the three and nine months ended September 30, 2020 when compared to the same periods in 2019 is primarily driven by the increase in volume in the traditional mortgage market. As discussed further in the notes to our consolidated financial statements in our Annual Report on Form 10-K for the year ended December 31, 2019, gains on mortgage loans sold are generally recognized at the time of a loan sale corresponding to the transfer of risk. As a result of increased production in the second and third quarters, the Company's held-for-sale portfolio increased by $62.1 million from December 31, 2019 to September 30, 2020.

Noninterest income also includes appreciation in the cash surrender value of bank-owned life insurance, which was $386 and $1,073 for the three and nine months ended September 30, 2020, respectively, compared to $283 and $838 for the same periods in 2019. The increases for both periods are attributable to the recent mergers. The assets that support these policies are administered by the life insurance carriers and the income we receive (i.e., increases or decreases in the cash surrender value of the policies) is dependent upon the returns the insurance carriers are able to earn on the underlying investments that support the policies. Earnings on these policies generally are not expected to be taxable.

Noninterest Expense

The following is a summary of our noninterest expense for the three and nine months ended September 30, 2020 and 2019 (dollars in thousands):

			Three Months Ended September 30,									Percent Increase			Nine Months Ended September 30,									Percent Increase
			2020			2019						(Decrease)			2020			2019						(Decrease)
Noninterest Expense
Salaries and employee benefits			$	12,184		$	7,634					59.6		%	$	33,885		$	22,605					49.9		%
Occupancy			2,054			1,359						51.1		%	5,566			4,069						36.8		%
Data processing and software			2,240			1,553						44.2		%	6,085			4,538						34.1		%
Professional fees			775			404						91.8		%	1,933			1,836						5.3		%
Regulatory fees			365			(17)						2,247.1		%	1,356			596						127.5		%
Merger expenses			78			299						(73.9)		%	6,895			302						2,183.1		%
Other operating expense			2,637			1,815						45.3		%	6,476			4,973						30.2		%
Total noninterest expense			$	20,333		$	13,047					55.8		%	$	62,196		$	38,919					59.8		%

Noninterest expense increased by $7,286 and $23,277, or 55.8% and 59.8%, for the three and nine months ended September 30, 2020, respectively, compared to the same periods in 2019 driven by an increase in salaries and employee benefits for both periods and merger expenses when comparing the nine months ended. The three and nine-months periods ended September 30, 2020 have been impacted by the TCB Holdings Transaction and the FABK Transaction which have resulted in additions to staff, additional vendor relationships and investments in technology. These and other factors impacting noninterest expense are discussed further below.

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Salaries and employee benefits increased by $4,550 and $11,280 or 59.6% and 49.9% for the three and nine months ended September 30, 2020, respectively, compared to the same periods in 2019. This increase is primarily attributable to the TCB Holdings Transaction in the first quarter of 2020 and FABK Transaction in the second quarter of 2020, as well as our year over year growth and severance for three executive officers. The staffing levels have normalized during the third quarter.

Occupancy costs increased by $695 or 51.1% and $1,497 or 36.8% during the three and nine months ended September 30, 2020, respectively, compared to the same periods in 2019 mainly due to the TCB Holdings Transaction and the FABK Transaction as well as the expansion of RMV.

Data processing and software costs increased by $687 or 44.2% and $1,547 or 34.1% when comparing the three and nine months ended September 30, 2020, respectively, to the comparable periods in 2019. This increase is mainly attributable to increased costs due to an increased volume of accounts and transactions services as well as continued investments in information technology infrastructure. Both the volume and location increases are primarily due to the TCB Holdings Transaction, the FABK Transaction, and the expansion of RMV.

Professional fees increased by $371 or 91.8%, and $97 or 5.3%, respectively, when comparing the three and nine months ended September 30, 2020, to the same periods in 2019. This fluctuation is mainly attributable to the increased fees related to special projects by the Company.

Our regulatory expenses are largely made up of FDIC deposit insurance expense which is based on our outstanding liabilities for the period multiplied by a factor determined by the FDIC, mainly driven by our most recent regulatory rating and certain financial performance factors. Our FDIC expense increased by $382 and $760 for the three and nine months ended September 30, 2020, compared to the same periods in 2019. This increase is primarily the result of our increase in deposits due to the TCB Holdings Transaction and the FABK Transaction as well as credits received in 2019 which significantly reduced the expense recognized.

Merger-related expenses increased by $6,593 for the nine months ended September 30, 2020 when compared to the same period in 2019 and decreased by $221 for the three months ended September 30, 2020 as compared to the same period in 2019. These costs are considered one-time expenses which are associated with the TCB Holdings Transaction and the FABK Transaction. We anticipate no further significant merger expenses to be incurred in relation to these two transactions.

Other operating expenses increased by $822 or 45.3% and $1,503 or 30.2% for the three and nine months ended September 30, 2020 compared to the same periods in 2019, mainly due to an increase in amortization of core deposit intangibles and franchise taxes due to the TCB Holdings Transaction and FABK Transaction.

Income Taxes

During the three and nine months ended September 30, 2020, we recorded consolidated income tax expense of $2,800 and $3,524, respectively, compared to $557 and $1,430, respectively, for the three and nine months ended September 30, 2019. The Company files separate federal tax returns for RMV and the bank segment. The taxable income or losses of the mortgage banking operations are included in the respective franchise and excise returns of the Bank and non-controlling member for federal purposes.

Our income tax expense attributable to shareholders for the three and nine months ended September 30, 2020, reflects an effective income tax rate of 19.39% and 15.77%, respectively, (exclusive of a tax expense (benefit) from our mortgage banking operations of $27 and $(69) for the three and nine months ended September 30, 2020, respectively, on pre-tax income (losses) of $415 and $(1,062) for the three and nine months ended September 30, 2020, respectively), compared to 14.05% and 12.61% for the same periods in 2019 (exclusive of a tax benefit of $97and $311 on pre-tax losses of $(1,491) and $(4,778), respectively, from our mortgage banking operations for the comparable periods in 2019). Additionally, our effective tax rate for the three and nine months ended September 30, 2020 is higher than the same period in 2019 primarily due to the change in the proportion of tax-exempt income to income before taxes. The Company's tax-exempt income from securities, loans and earnings from bank-owned life insurance contracts as well as state tax credits related to loans to encourage economic development impact the effective tax rate.

Non-controlling Interest in Operating Results of Subsidiary

Our non-controlling interest in operating results of subsidiary is solely attributable to the RMV minority interest. The Bank has a 51% voting interest in this venture, but under the terms of the related operating agreement, the non-controlling member receives 70% of the cash flow distributions of RMV and the Bank receives 30% of any cash flow distributions, after the non-

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controlling member recovers its aggregate capital contributions. The non-controlling member is required to fund RMV's losses, in arrears, via additional capital contributions. RMV had a net income (loss) of $374 and $(990) for the three and nine months ended September 30, 2020, respectively, compared to a net loss of $(1,386) and $(4,484) for the same periods in 2019. The improvements in operating results for the three and nine months ended September 30, 2020 when compared to the same period in 2019 is mainly attributable to the decrease in expense relating to the start-up of the correspondent line of business in 2019. Also, see Note 10 to our consolidated financial statements for segment reporting.

COMPARISON OF BALANCE SHEETS AT SEPTEMBER 30, 2020 AND DECEMBER 31, 2019

Overview

The Company’s total assets were $3,044,512 at September 30, 2020 and $1,901,842 at December 31, 2019. Assets increased by 60.1% from December 31, 2019 to September 30, 2020, primarily due to acquisition activity which increased total loans by $756,240. Total liabilities were $2,737,426 at September 30, 2020 and $1,678,089 at December 31, 2019, an increase of 63.1%. The increase in liabilities was substantially attributable to the increase in deposits of $981,049, or 61.9%, and an increase in FHLB advances of $29,818 during the period. These changes were materially impacted by the TCB Holdings Transaction as well as the FABK Transaction. These and other components of our consolidated balance sheets are discussed further below.

Loans

Lending-related income is the largest component of our net interest income and is a major contributor to profitability. The loan portfolio is the largest component of earning assets, and it, therefore, generates the largest portion of revenues. The absolute volume of loans and the volume of loans as a percentage of earning assets is an important determinant of net interest margin as loans are expected to produce higher yields than securities and other earning assets. The competition for quality loans in our markets has remained strong. Our goal is to steadily grow our loan portfolio, focusing on quality. This is not always possible for various reasons, including but not limited to scheduled maturities or early payoffs exceeding new loan volume, as well as economic conditions. Early payoffs typically increase in falling rate environments as customers identify advantageous opportunities for refinancing. We have been adding experienced lending officers to our staff to help with loan growth. We have expanded our Middle Tennessee footprint into Cheatham County with the TCB Holdings Transaction. The FABK Transaction expanded our footprint into Montgomery County as well as enhanced our presence in Davidson County. Additionally, the FABK Transaction diversified our loan portfolio with the addition of loans related to manufactured housing. Total loans, net, at September 30, 2020, and December 31, 2019, were $2,338,064 and $1,397,374, respectively, representing an increase of 67.3%. Contributing to this increase, $171,445 were acquired in connection with the first quarter TCB Holdings Transaction and $622,423 were acquired in connection with the second quarter FABK Transaction.

The table below provides a summary of the loan portfolio composition for the dates noted (including purchased credit-impaired ("PCI") loans).

			September 30, 2020												December 31, 2019
			Amount						Percent						Amount						Percent
Commercial, Industrial and Agricultural			$	477,785					20.2		%				$	245,515					17.4		%
Real estate:
1-4 Family Residential			334,730						14.2		%				227,529						16.2		%
1-4 Family HELOC			101,492						4.3		%				96,228						6.8		%
Multifamily and Commercial			864,756						36.7		%				536,845						38.1		%
Construction, Land Development and Farmland			366,760						15.5		%				273,872						19.4		%
Consumer			209,071						8.8		%				16,855						1.2		%
Other			8,259						0.3		%				13,180						0.9		%
			2,362,853						100.0		%				1,410,024						100.0		%
Less:
Deferred loan fees			4,955												72
Allowance for loan losses			19,834												12,578
Loans, net			$	2,338,064											$	1,397,374

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The table below provides a summary of PCI loans as of September 30, 2020 and December 31, 2019:

			September 30, 2020			December 31, 2019
Commercial, Industrial and Agricultural			$	989		$	—
Real estate:
1-4 Family Residential			1,211			231
1-4 Family HELOC			18			—
Multifamily and Commercial			2,243			217
Construction, Land Development and Farmland			1,003			1,021
Consumer			2,105			—
Other			—			—
Total gross PCI loans			7,569			1,469
Less:
Remaining purchase discount			3,036			246
Allowance for loan losses			—			—
Loans, net			$	4,533		$	1,223

Commercial, industrial and agricultural loans above consist solely of loans made to U.S.-domiciled customers. These include loans for use in normal business operations to finance working capital needs, equipment purchases, or other expansionary projects. Commercial, industrial, and agricultural loans were $477,785 at September 30, 2020 and increased by 94.6% compared to $245,515 at December 31, 2019 primarily driven by the TCB Holdings Transaction and FABK Transaction.

Real estate loans comprised 70.7% of the loan portfolio at September 30, 2020. Residential loans included in this category consist mainly of closed-end loans secured by first and second liens that are not held for sale and revolving, open-end loans secured by 1-4 family residential properties extended under home equity lines of credit. The Company increased the residential portfolio 34.7% from December 31, 2019 to September 30, 2020 primarily driven by the TCB Holdings Transaction and FABK Transaction. Multi-family and commercial loans included in the real estate category above include (in typical order of prominence) loans secured by non-owner-occupied commercial real estate properties, and loans secured by multi-family residential properties. Multi-family and commercial real estate loans were $864,756 at September 30, 2020 and increased 61.1% compared to the $536,845 held as of December 31, 2019 primarily driven by the TCB Holdings Transaction and FABK Transaction. Real estate construction loans consist of 1-4 family residential construction loans, other construction loans, land loans, and loans secured by farmland. Construction lending has continued to increase based on a strong local market demand.

Consumer loans mainly consist of loans to individuals for household, family, and other personal expenditures under revolving credit plans, credit cards, and automobile and other consumer loans. Our consumer loans experienced an increase from December 31, 2019, to September 30, 2020, of 1,140.4% primarily due to loans to finance manufactured homes that are not secured by real estate acquired in the FABK Transaction.

Other loans consist mainly of loans to states and political subdivisions and loans to other depository institutions and experienced a decrease of 37.3% from December 31, 2019 to September 30, 2020 due to loan payments.

The repayment of loans is a source of additional liquidity. The following table sets forth the loans repricing or maturing within specific intervals at September 30, 2020, excluding unearned net fees and costs.

			One Year or Less						One to Five Years						Over Five Years						Total
Gross loans			$	617,774					$	1,132,058					$	613,021					$	2,362,853
Fixed interest rate																					$	1,391,044
Variable interest rate																					971,809
Total																					$	2,362,853

The information presented in the above table is based upon the contractual maturities or next repricing date of the individual loans, including loans which may be subject to renewal at their contractual maturity. Renewal of such loans is subject to review and credit approval, as well as modification of terms upon their maturity. Consequently, we believe this treatment presents fairly the maturity and repricing structure of the loan portfolio.

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Allowance for Loan Losses

At September 30, 2020, the allowance for loan losses was $19,834 compared to $12,578 at December 31, 2019. The allowance for loan losses as a percentage of total loans was 0.84% at September 30, 2020 compared to 0.89% at December 31, 2019.

The following table sets forth the activity in the allowance for loan losses for the periods presented.

Analysis of Changes in Allowance for Loan Losses

			September 30, 2020						September 30, 2019
Beginning Balance, January 1, 2020 and 2019, respectively			$	12,578					$	10,892
Loans charged off:
Commercial, Industrial and Agricultural			(507)						(170)
Real estate:
1-4 Family Residential			(68)						(29)
1-4 Family HELOC			(98)						—
Multifamily and Commercial			—						—
Construction, Land Development and Farmland			(114)						—
Consumer			(355)						(37)
Other			—						(34)
Total loans charged off			(1,142)						(270)
Recoveries on loans previously charged off:
Commercial, Industrial and Agricultural			126						342
Real estate:
1-4 Family Residential			769						220
1-4 Family HELOC			15						11
Multifamily and Commercial			20						62
Construction, Land Development and Farmland			8						—
Consumer			60						28
Other			—						200
Total loan recoveries			998						863
Net (charge-offs) recoveries			(144)						593
Provision for loan losses			7,400						806
Total allowance for loan losses at end of period			$	19,834					$	12,291
Gross loans at end of period (1)			$	2,362,853					$	1,350,522
Average gross loans (1)			$	2,085,316					$	1,275,834
Allowance for loan losses to total loans			0.84		%				0.91		%
Net (charge-offs) recoveries to average loans (annualized)			(0.01)		%				0.06		%

(1)Loan balances exclude loans held for sale.

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While no portion of the allowance for loan losses is in any way restricted to any individual loan or group of loans, and the entire allowance for loan losses is available to absorb losses from any and all loans, the following table summarizes our allocation of allowance for loan losses by loan category and loans in each category as a percentage of total loans, for the periods presented.

			September 30, 2020																		September 30, 2019
			Amount						% of Allowance to Allowance						% of Loan Type to Total Loans						Amount						% of Allowance to Allowance						% of Loan Type to Total Loans
Commercial, Industrial and Agricultural			$	5,012					25.3		%				20.2		%				$	2,299					18.7		%				17.2		%
Real estate:
1-4 Family Residential			2,289						11.5		%				14.2		%				1,383						11.3		%				17.5		%
1-4 Family HELOC			1,485						7.5		%				4.3		%				704						5.7		%				6.9		%
Multifamily and Commercial			8,247						41.5		%				36.7		%				5,188						42.2		%				38.5		%
Construction, Land Development and Farmland			1,955						9.9		%				15.5		%				2,513						20.4		%				17.6		%
Consumer			826						4.2		%				8.8		%				170						1.4		%				1.3		%
Other			20						0.1		%				0.3		%				34						0.3		%				1.0		%
			$	19,834					100.0		%				100.0		%				$	12,291					100.0		%				100.0		%

Nonperforming Assets

Nonperforming assets consists of nonperforming loans plus real estate acquired through foreclosure or deed in lieu of foreclosure and other repossessed collateral. Nonperforming loans by definition consists of nonaccrual loans and loans past due 90 days or more and still accruing interest. When we place a loan on nonaccrual status, interest accruals cease and uncollected interest is reversed and charged against current income. The interest on these loans is accounted for on the cash-basis, or cost-recovery method, until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured, which generally includes a minimum performance of six months.

The following table provides information with respect to the Company’s nonperforming assets.

			September 30, 2020						December 31, 2019
Nonaccrual loans			$	6,738					$	4,071
Past due loans 90 days or more and still accruing interest			64						64
Total nonperforming loans			6,802						4,135
Foreclosed real estate ("OREO")			1,326						750
Repossessed collateral			1,603						—
Total nonperforming assets			$	9,731					$	4,885
Total nonperforming loans as a percentage of total loans			0.29		%				0.29		%
Total nonperforming assets as a percentage of total assets			0.32		%				0.26		%
Allowance for loan losses as a percentage of nonperforming loans			291.61		%				304.18		%

Investment Securities and Other Earning Assets

The investment securities portfolio is intended to provide the Bank with adequate liquidity, flexible asset/liability management and a source of stable income. The portfolio is structured with investment grade holdings and consists of securities classified as available-for-sale. All available-for-sale securities are carried at fair value and may be used for liquidity purposes should management deem it to be in our best interest. Unrealized gains and losses on this portfolio are excluded from earnings, but are reported as other comprehensive income in a separate component of shareholders’ equity, net of income taxes. Premium amortization and discount accretion are recognized as adjustments to interest income using the interest method. Realized gains or losses on sales are based on the net proceeds and the adjusted carrying value amount of the securities sold using the specific identification method.

Securities totaled $273,893 at September 30, 2020, in comparison to the $260,293 in securities balances at December 31, 2019. This increase can largely be attributed to the Company's investment in bank holding company subordinated debt offerings and U.S. Treasuries during the period of $31,179. Activity during the nine months ended September 30, 2020 includes the sale of

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$103,901 of securities, most of which were acquired as part of the TCB Holdings Transaction and FABK Transaction, as well as $10,370 of principal paydowns, calls, and maturities. In connection with the TCB Holdings Transaction and FABK Transaction, management determined that it would be beneficial to liquidate those portfolios and utilize those funds for loan demand and other uses.

Restricted equity securities totaled $17,367 and $11,279 at September 30, 2020, and December 31, 2019, respectively, and consist of FRB and FHLB stock.

The following table shows the Company’s investments’ amortized cost and fair value, aggregated by investment category, for the periods presented:

			September 30, 2020																		December 31, 2019
			Amortized Cost						Fair Value						% of Total						Amortized Cost						Fair Value						% of Total
U.S. Treasury and other U.S. government agencies			$	12,117					12,117						4.42		%				$	59					59						0.02		%
State and municipal bonds			175,976						190,623						69.61		%				186,283						196,660						75.56		%
Corporate bonds			15,750						15,809						5.77		%				7,880						7,845						3.01		%
Mortgage-backed securities			41,240						40,376						14.74		%				38,126						37,761						14.51		%
Asset-backed securities			15,199						14,968						5.46		%				18,374						17,968						6.90		%
Total			$	260,282					273,893						100.00		%				$	250,722					260,293						100.00		%

The table below summarizes the contractual maturities of securities at September 30, 2020:

			Amortized Cost						Estimated Fair Value
Due within one year			$	12,567					$	12,565
Due in one to five years			2,175						2,186
Due in five to ten years			17,222						17,965
Due after ten years			171,879						185,833
Mortgage-backed securities			41,240						40,376
Asset-backed securities			15,199						14,968
Total			$	260,282					$	273,893

Premises and Equipment

Premises and equipment, net, totaled $33,319 at September 30, 2020 compared to $21,064 at December 31, 2019, a net increase of $12,255, or 58.2%. Premises and equipment purchases amounted to approximately $2,709 during the nine months ended September 30, 2020 and were mainly incurred for additional leasehold improvements for our branches and new mortgage locations while depreciation expense amounted to $2,084. As part of the TCB Holdings Transaction, $6,401 of premises and equipment were acquired effective January 1, 2020. Effective April 1, 2020, premises and equipment of $7,905 were acquired in the FABK Transaction.

Deposits

Deposits represent the Company’s largest source of funds. The Company competes with other banks and non-bank institutions for deposits, as well as with a growing number of non-deposit investment alternatives available to depositors such as money market funds and other brokerage investment products. Challenges to deposit growth include interest rate changes on deposit products given movements in the interest rate environment and other competitive pricing pressures, and customer preferences regarding higher-costing deposit products or non-deposit investment alternatives.

At September 30, 2020, total deposits were $2,565,502, an increase of $981,049, or 61.9%, compared to $1,584,453 at December 31, 2019. During the nine months ended September 30, 2020, noninterest bearing demand deposits increased by $278,163, interest-bearing demand deposits increased by $120,087, savings and money market deposits increased by $404,277, and time deposits increased by $178,522. The primary driver of the increase in deposits is attributable to the deposits acquired in the TCB Holdings Transaction which totaled $210,538 coupled with those acquired in the FABK Transaction which totaled

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$608,690. During the nine months ending September 30, 2020, management shifted from using brokered time deposits to transactional deposits and to using FHLB advances which offset this increase.

The following table shows maturity or repricing of time deposits of $250 or more by category based on time remaining until maturity at September 30, 2020.

			September 30, 2020
Twelve months or less			$	293,942
Over twelve months through three years			21,622
Over three years			5,221
Total			$	320,785

Market and Liquidity Risk Management

Our objective is to manage assets and liabilities to provide a satisfactory, consistent level of profitability within the framework of established liquidity, loan, investment, borrowing, and capital policies. Our Asset Liability Management Committee ("ALCO") is charged with the responsibility of monitoring these policies, which are designed to ensure acceptable composition of asset/liability mix. Two critical areas of focus for ALCO are interest rate sensitivity and liquidity risk management.

Interest Rate Sensitivity—Interest rate sensitivity refers to the responsiveness of interest-earning assets and interest-bearing liabilities to changes in market interest rates. In the normal course of business, we are exposed to market risk arising from fluctuations in interest rates. ALCO measures and evaluates the interest rate risk so that we can meet customer demands for various types of loans and deposits. ALCO determines the most appropriate amounts of off-balance sheet items to maximize long-term earnings and mitigate interest rate risk. Measurements we use to help us manage interest rate sensitivity include a gap analysis, an earnings simulation model and an economic value of equity model. These measurements are used in conjunction with competitive pricing analysis and are further described below.

Interest Rate Sensitivity Gap Analysis—The rate sensitive position, or gap, is the difference in the volume of rate-sensitive assets and liabilities, at a given time interval, including both floating rate instruments and instruments which are approaching maturity. The measurement of our interest rate sensitivity, or gap, is one of the three principal techniques we use in our asset/liability management effort.

Our policy is to have 12 and 24-month cumulative repricing gaps that do not exceed 25% of assets. We slightly exceeded our policy as of September 30, 2020 for the 12-month cumulative repricing gap. Although we do monitor our gap on a periodic basis, we recognize the potential shortcomings of such a model. The static nature of the gap schedule makes it difficult to incorporate changes in behavior that are caused by changes in interest rates. Also, although the periods of estimated and contractual repricing are identified in the analysis, the extent of repricing is not modeled in the gap schedule (i.e. whether repricing is expected to move on a one-to-one or other basis in relationship to the market changes simulated). For these reasons and as a result of other model shortcomings, we rely more heavily on the earnings simulation model and the economic value of equity model discussed further below.

Earnings Simulation Model—We believe interest rate risk is effectively measured by our earnings simulation modeling. Earning assets, interest-bearing liabilities and off-balance sheet financial instruments are combined with simulated forecasts of interest rates for the next 12 months and 24 months. To limit interest rate risk, we have guidelines for our earnings at risk which seek to limit the negative variances of net interest income in instantaneous changes to interest rates. We also periodically monitor simulations based on various rate scenarios such as non-parallel shifts in market interest rates over time. For changes up or down in rates from a flat interest rate forecast over the next 12 and 24 months, our estimated change in net interest income as well as our policy limits are as follows:

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Instantaneous, Parallel Change in Prevailing Interest Rates Equal to						Estimated Change in Net Interest Income and Policy of Maximum Percentage Decline in Net Interest Income
						Next 12												Next 24
						Months												Months
						Estimate						Policy						Estimate						Policy
-200 bp						(0.9)%						(15)%						(2.2)%						(15)%
-100 bp						(0.7)%						(10)%						(1.8)%						(10)%
+100 bp						0.9%						(10)%						3.2%						(10)%
+200 bp						2.4%						(15)%						6.6%						(15)%
+300 bp						4.5%						(20)%						10.3%						(20)%
+400 bp						6.7%						(25)%						14.2%						(25)%

We were in compliance with our earnings simulation model policies as of September 30, 2020, indicating what we believe to be a fairly neutral interest-rate risk profile.

Economic Value of Equity Model—Our economic value of equity model measures the extent that estimated economic values of our assets, liabilities and off-balance sheet items will change as a result of interest rate changes. Economic values are determined by discounting expected cash flows from assets, liabilities and off-balance sheet items, which establishes a base case economic value of equity.

To help monitor our related risk, we have established the following policy limits regarding simulated changes in our economic value of equity:

Instantaneous, Parallel Change in Prevailing Interest Rates Equal to						Maximum Percentage Decline in Economic Value of Equity from the Economic Value of Equity at Currently Prevailing Interest Rates
±100bp						15%
±200 bp						25%
±300 bp						30%
±400 bp						35%
Non-parallel shifts						35%

At September 30, 2020, our model results indicated that we were within these policy limits.

Each of the above analyses may not, on its own, be an accurate indicator of how our net interest income will be affected by changes in interest rates. Income associated with interest-earning assets and costs associated with interest-bearing liabilities may not be affected uniformly by changes in interest rates. In addition, the magnitude and duration of changes in interest rates may have a significant impact on net interest income. For example, although certain assets and liabilities may have similar maturities or periods of repricing, they may react in different degrees to changes in market interest rates. Interest rates on certain types of assets and liabilities fluctuate in advance of changes in general market rates, while interest rates on other types may lag behind changes in general market rates. In addition, certain assets, such as adjustable rate loans, have features (generally referred to as interest rate caps and floors) which limit changes in interest rates. Prepayment and early withdrawal levels also could deviate significantly from those assumed in calculating the maturity of certain instruments. The ability of many borrowers to service their debts also may decrease during periods of rising interest rates. Our ALCO reviews each of the above interest rate sensitivity analyses along with several different interest rate scenarios as part of its responsibility to provide a satisfactory, consistent level of profitability within the framework of established liquidity, loan, investment, borrowing, and capital policies.

Liquidity Risk Management —The purpose of liquidity risk management is to ensure that there are sufficient cash flows to satisfy loan demand, deposit withdrawals, and our other needs. Traditional sources of liquidity for a bank include asset maturities and growth in core deposits. A bank may achieve its desired liquidity objectives from the management of its assets and liabilities and by internally generated funding through its operations. Funds invested in marketable instruments that can be readily sold and the continuous maturing of other earning assets are sources of liquidity from an asset perspective. The liability base provides sources of liquidity through attraction of increased deposits and borrowing funds from various other institutions and sources.

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Changes in interest rates also affect our liquidity position. We currently price deposits in response to market rates and our management intends to continue this policy. If deposits are not priced in response to market rates, a loss of deposits could occur which would negatively affect our liquidity position.

Scheduled loan payments are a relatively stable source of funds, but loan payoffs and deposit flows fluctuate significantly, being influenced by interest rates, general economic conditions, competition, and the actions of our customers. Additionally, debt security investments are subject to prepayment and call provisions that could accelerate their payoff prior to stated maturity. We attempt to price our deposit products to meet our asset/liability objectives consistent with local market conditions. Our ALCO is responsible for monitoring our ongoing liquidity needs. Our regulators also monitor our liquidity and capital resources on a periodic basis.

The Company has established a line of credit with the FHLB, which is secured by a blanket pledge of 1-4 family residential mortgages, multi-family residential, commercial real estate, and home equity loans, and available-for-sale securities. At September 30, 2020, FHLB advances totaled $40,555 compared to $10,737 as of December 31, 2019. This increase in FHLB advances generally correlates with a decrease in more expensive brokered deposits, contributing to an improved net interest margin.

At September 30, 2020, the scheduled maturities of our FHLB advances and interest rates were as follows (scheduled maturities will differ from scheduled repayments):

Scheduled Maturities						Amount						Weighted Average Rates
2020						$	23,000					0.22%
2021						12,636						2.36%
2022						402						1.22%
2023						4,005						2.38%
2024						512						2.52%
						$	40,555					1.14%

The Company has outstanding $23,000 of subordinated debentures associated with trust preferred securities issued by trusts that are affiliates of Reliant Bancorp, $10,000 of which is owned by a wholly-owned subsidiary of Reliant Bancorp. Reliant Bancorp has timely made its scheduled interest payments on these subordinated debentures since assumed in the first quarter of 2018. As of September 30, 2020, Reliant Bancorp was current on all interest payments due related to its subordinated debentures. Reliant Bancorp has the right to defer the payment of interest on the subordinated debentures at any time, for a period not to exceed 20 consecutive quarters. During the period in which it is deferring the payment of interest on its subordinated debentures, the indentures governing the subordinated debentures provide that Reliant Bancorp cannot pay any dividends on its common stock or preferred stock. 

On December 13, 2019, Reliant Bancorp issued and sold $60,000 in aggregate principal amount of its 5.125% Fixed-to-Floating Rate Subordinated Notes due 2029 (the “Subordinated Notes”). The Subordinated Notes will bear interest at an initial rate of 5.125%, payable semi-annually until December 15, 2024, at which time the Subordinated Notes will bear interest at a floating rate equal to the three-month Secured Overnight Financing Rate (“SOFR”) (provided, that in the event the three-month SOFR is less than zero, the three-month SOFR will be deemed to be zero), plus a spread of 376.5 basis points. If the three-month SOFR rises during the floating interest period, the cost of the Subordinated Notes will increase, thereby negatively affecting our net income.

Capital

Shareholders’ equity was $307,086 at September 30, 2020, an increase of $83,333, or 37.2%, from $223,753 at December 31, 2019. During the nine months ended September 30, 2020, the Company completed the TCB Holdings Transaction which increased shareholders' equity $18,041 and the FABK Transaction which increased shareholders' equity $51,915. Net income also contributed to the increase by $19,186. This increase was primarily offset by dividends declared of $4,550, and other comprehensive loss of $2,562. Contributions from the noncontrolling interest of $990 were recognized in the nine months ended September 30, 2020. The increase in shareholders' equity mitigated by the growth in the Bank's assets led to an increase in the Bank’s September 30, 2020 Tier 1 leverage ratio to 10.48% compared with 10.30% at December 31, 2019. See other ratios discussed further below. Additionally, the subordinated debentures qualified as Tier 1 and Total risk-based capital for the Company due to asset size at the time of issuance.

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On August 24, 2020, the Company filed a Registration Statement on Form S-3 to offer, issue and sell from time to time in one or more offerings any combination of (i) common stock, (ii) preferred stock, (iii) debt securities, (iv) depository shares, (v) warrants, (vi) units, (vii) purchase contracts, and (viii) rights, up to a maximum aggregate offering price of $100,000. The net proceeds from any offering will be used for general corporate purposes including repayment of debt or payment of interest thereon, capital expenditures, acquisitions, investments, and any other purposes that we may specify in any prospectus supplement. Until allocated to such purposes it is expected that we will invest any proceeds in short-term, interest-bearing instruments or other investment-grade securities. The Securities and Exchange Commission declared the Registration Statement on Form S-3 effective on September 3, 2020, and the Registration Statement on Form S-3 will expire on September 3, 2023.

Banks as regulated institutions are required to maintain certain levels of capital. The Federal Reserve Board of Governors, the primary federal regulator for the Bank, has adopted minimum capital regulations or guidelines that categorize capital components and the level of risk associated with various types of assets. Financial institutions are expected to maintain a level of capital commensurate with the risk profile assigned to their assets in accordance with applicable regulations and guidelines. We regularly review our capital adequacy to ensure compliance with these regulations and guidelines and to help ensure that sufficient capital is available for current and future needs. It is management’s intent to maintain an optimal capital and leverage mix for growth and for shareholder returns.

Prompt corrective action regulations provide five bank capital classifications: well capitalized, adequately capitalized, undercapitalized, significantly undercapitalized, and critically undercapitalized, although these terms are not used to represent overall financial condition. If adequately capitalized, regulatory approval is required to accept brokered deposits. If undercapitalized, capital distributions are limited, as is asset growth and expansion, and capital restoration plans are required. At September 30, 2020, the most recent regulatory notifications categorized the Bank as well capitalized under the regulatory framework for prompt corrective action. There are no conditions or events since these notifications that management believes have changed the institution’s category. Actual and required capital amounts and ratios are presented below as of September 30, 2020 and December 31, 2019 for Reliant Bancorp and the Bank.

			Actual Regulatory Capital												Minimum Required Capital Including Capital Conservation Buffer												To Be Well Capitalized Under Prompt Corrective Action Provisions
			Amount						Ratio						Amount						Ratio						Amount						Ratio
September 30, 2020
Reliant Bancorp
Tier I leverage			$	253,534					8.72		%				$	116,300					4.00		%				$	145,375					5.00		%
Common equity Tier 1			241,786						9.77		%				173,235						7.00		%				160,861						6.50		%
Tier I risk-based capital			253,534						10.25		%				210,248						8.50		%				197,880						8.00		%
Total risk-based capital			332,434						13.44		%				259,714						10.50		%				247,347						10.00		%
Bank
Tier I leverage			$	304,376					10.48		%				$	116,174					4.00		%				$	145,218					5.00		%
Common equity Tier 1			304,376						12.33		%				172,801						7.00		%				160,458						6.50		%
Tier I risk-based capital			304,376						12.33		%				209,829						8.50		%				197,486						8.00		%
Total risk-based capital			324,635						13.15		%				259,214						10.50		%				246,871						10.00		%
December 31, 2019
Reliant Bancorp
Tier I leverage			$	176,748					9.74		%				$	72,586					4.00		%				$	90,733					5.00		%
Common equity Tier 1			165,063						10.55		%				109,520						7.00		%				101,698						6.50		%
Tier I risk-based capital			176,748						11.30		%				132,952						8.50		%				125,131						8.00		%
Total risk-based capital			249,751						15.97		%				164,207						10.50		%				156,388						10.00		%
Bank
Tier I leverage			$	186,734					10.30		%				$	72,518					4.00		%				$	90,648					5.00		%
Common equity Tier 1			186,734						11.95		%				109,384						7.00		%				101,571						6.50		%
Tier I risk-based capital			186,734						11.95		%				132,823						8.50		%				125,010						8.00		%
Total risk-based capital			199,737						12.79		%				163,975						10.50		%				156,167						10.00		%

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Effects of Inflation and Changing Prices

The accompanying consolidated financial statements have been prepared in accordance with U.S. GAAP, which requires the measurement of financial positions and operating results in terms of historical dollars without considering the change in the relative purchasing power of money over time due to inflation. Unlike most industrial companies, virtually all of the assets and liabilities of a financial institution are monetary in nature. As a result, interest rates generally have a more significant impact on the performance of a financial institution than the effects of general levels of inflation. Although interest rates do not necessarily move in the same direction or to the same extent as the prices of goods and services, increases in inflation generally have resulted in increased interest rates. In addition, inflation affects financial institutions’ cost of goods and services purchased, the cost of salaries and benefits, occupancy expense, and similar items. Inflation and related increases in interest rates generally decrease the market value of investments and loans held and may adversely affect liquidity, earnings, and shareholders’ equity. Commercial and other loan originations and refinancing tend to slow as interest rates increase, and can reduce our earnings from such activities.

Off-Balance Sheet Lending Arrangements

Off-balance sheet arrangements generally consist of unused lines of credit and standby letters of credit. Such commitments of the Company were as follows at September 30, 2020:

			September 30, 2020
Unused lines of credit			$	534,971
Standby letters of credit			19,793
Total commitments			$	554,764

Other Off-Balance Sheet Arrangements

The Company utilizes interest rate swaps to mitigate interest rate risk. The total notional amount of swap agreements was $179,345 and $129,605, respectively, at September 30, 2020 and December 31, 2019. At September 30, 2020 and December 31, 2019, the contracts had negative fair values totaling $10,216 and $2,708, respectively.

Emerging Growth Company Status

Reliant Bancorp is presently an “emerging growth company,” as defined in the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”), and may take advantage of certain exemptions from various reporting requirements that are applicable to public companies that are not emerging growth companies, including, but not limited to, not being required to comply with the auditor attestation requirements of Section 404 of the Sarbanes-Oxley Act, reduced disclosure obligations regarding executive compensation in periodic reports and proxy statements, and exemptions from the requirements of holding a nonbinding advisory vote on executive compensation and shareholder approval of any golden parachute payments not previously approved. In addition, even if Reliant Bancorp chooses to comply with the reporting requirements of public companies that are not emerging growth companies, Reliant Bancorp may avail itself of the reduced requirements applicable to emerging growth companies from time to time in the future, so long as Reliant Bancorp is an emerging growth company. Reliant Bancorp will remain an emerging growth company through the fiscal year ended December 31, 2020. Management cannot predict if investors will find Reliant Bancorp’s common stock less attractive because it will rely on these exemptions. If some investors find Reliant Bancorp’s common stock less attractive as a result, there may be a less active trading market for its common stock and Reliant Bancorp’s stock price may be more volatile.

Further, the JOBS Act exempts emerging growth companies from being required to comply with new or revised financial accounting standards until private companies (that is, those that have not had a Securities Act registration statement declared effective or do not have a class of securities registered under the Exchange Act) are required to comply with the new or revised financial accounting standards. The JOBS Act provides that a company can elect to opt out of the extended transition period and comply with the requirements that apply to non-emerging growth companies but any such election to opt out is irrevocable. Reliant Bancorp has elected to take advantage of the extended transition period that allows an emerging growth company to delay the adoption of certain accounting standards until those standards would otherwise apply to private companies, which means that the financial statements included in this filing, as well as certain financial statements we will file in the future, will be subject to all new or revised accounting standards generally applicable to private companies. As a result, we will comply with new or revised accounting standards to the same extent that compliance is required for non-public companies.

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Item 3.    Quantitative and Qualitative Disclosures About Market Risk.

This item is not applicable to smaller reporting companies.

Item 4.    Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

Management, including our Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of our disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) as of the end of the period covered by this report. Based upon that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective to ensure that information required to be disclosed in the reports we file or submit under the Exchange Act is (i) recorded, processed, summarized and reported as and when required and (ii) accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

Changes in Internal Control over Financial Reporting

There has been no change in our internal control over financial reporting during the quarter ended September 30, 2020, that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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PART II – OTHER INFORMATION

Item 1.        Legal Proceedings.

Reliant Bancorp and its wholly-owned bank subsidiary, the Bank, are periodically involved as a plaintiff or defendant in various legal actions in the ordinary course of business. Neither Reliant Bancorp nor the Bank is involved in any litigation that is expected to have a material impact on our financial position or results of operations. Management believes that any claims pending against Reliant Bancorp or its subsidiaries are without merit or that the ultimate liability, if any, resulting from them will not materially affect the Bank’s financial condition or Reliant Bancorp’s consolidated financial position.

Item 1A.    Risk Factors.

There are no material changes from the risk factors set forth under Part I, Item 1A. "Risk Factors" in Reliant Bancorp's Annual Report on Form 10-K for the year ended December 31, 2019 as supplemented by Part II, Item 1A. "Risk Factors" in Reliant Bancorp's Quarterly Reports on Form 10-Q for the quarters ended March 31, 2020 and June 30, 2020.

Item 2.        Unregistered Sales of Equity Securities and Use of Proceeds.

The following table contains information regarding shares of our common stock repurchased by Reliant Bancorp during the three months ended September 30, 2020.

Period			Total Number of Shares Purchased (1)			Average Price Paid Per Share			Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs (2)			Maximum Number (or Approximate Dollar Value) of Shares That May Yet Be Purchased Under the Plans or Programs (2) (in thousands)
July 1, 2020 to July 31, 2020			—			$—			—			$15,000
August 1, 2020 to August 31, 2020			6,799			$14.66			—			$15,000
September 1, 2020 to September 30, 2020			545			$14.70			—			$15,000
Total			7,344			$14.67			—			$15,000

(1)During the quarter ended September 30, 2020, 26,550 shares of restricted stock previously awarded to certain of the participants in our stock plans vested. We withheld 7,344 shares to satisfy tax withholding requirements associated with the vesting of these shares of restricted stock.

(2)On March 10, 2020, Reliant Bancorp's board of directors authorized a stock repurchase plan allowing Reliant Bancorp to repurchase up to $15 million of outstanding Reliant Bancorp common stock (the "Repurchase Plan"). As of September 30, 2020, Reliant Bancorp had not repurchased any shares of Reliant Bancorp common stock under the Repurchase Plan. The Repurchase Plan does not obligate Reliant Bancorp to repurchase any dollar amount or number of shares. The Repurchase Plan may be extended, modified, amended, suspended, or discontinued at any time. On April 27, 2020, we announced that our board of directors suspended the Repurchase Plan to preserve our financial strength during this challenging economic environment.

Item 3.         Defaults Upon Senior Securities.

Not applicable.

Item 4.         Mine Safety Disclosures.

Not applicable.

Item 5.         Other Information.

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None.

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Item 6.         Exhibits.

EXHIBIT INDEX 

Exhibit No.			Description
3.1			Amended and Restated Charter of Reliant Bancorp, Inc. (Restated for SEC filing purposes) (incorporated by reference to Exhibit 3.1 of Reliant Bancorp's Quarterly Report on Form 10-Q filed on November 6, 2018).
3.2			Third Amended and Restated Bylaws of Reliant Bancorp, Inc., as amended (Restated for SEC filing purposes) (incorporated by reference to Exhibit 3.2 of Reliant Bancorp's Quarterly Report on Form 10-Q filed on August 7, 2020).
10.1			Employment Agreement, dated September 21, 2020, by and among Reliant Bancorp, Inc., Reliant Bank, and Mark Seaton (incorporated by reference to Exhibit 10.1 of Reliant Bancorp's Current Report on Form 8-K filed on September 21, 2020).
31.1*			Certification pursuant to Rule 13a-14(a)/15d-14(a).
31.2*			Certification pursuant to Rule 13a-14(a)/15d-14(a).
32.1**			Certification pursuant to 18 USC Section 1350 - Sarbanes-Oxley Act of 2002.
101.INS*			Inline XBRL Instance Document.
101.SCH*			Inline XBRL Schema Documents.
101.CAL*			Inline XBRL Calculation Linkbase Document.
101.LAB*			Inline XBRL Label Linkbase Document.
101.PRE*			Inline XBRL Presentation Linkbase Document.
101.DEF*			Inline XBRL Definition Linkbase Document.
104			Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).

*    Filed herewith.

**    Furnished herewith.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

RELIANT BANCORP, INC.

November 5, 2020

/s/ DeVan D. Ard, Jr.

DeVan D. Ard, Jr.

Chairman and Chief Executive Officer

(Principal Executive Officer)

November 5, 2020

/s/ Jerry Cooksey

Jerry Cooksey

Chief Financial Officer

(Principal Financial Officer)

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EXHIBIT 31.1

CERTIFICATIONS

I, DeVan D. Ard, Jr., certify that:

1.			I have reviewed this report on Form 10-Q of Reliant Bancorp, Inc.;

2.			Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.			Based on my knowledge, the financial statements and other financial information included in this report fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.			The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)			Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)			Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)			Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)			Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.			The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a)			All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

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EXHIBIT 31.1

(b)			Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

November 5, 2020			/ s/ DeVan D. Ard, Jr.
			DeVan D. Ard, Jr.
			Chief Executive Officer
			(Principal Executive Officer)

EXHIBIT 31.2

CERTIFICATIONS

I, Jerry Cooksey, certify that:

1.			I have reviewed this report on Form 10-Q of Reliant Bancorp, Inc.;

2.			Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.			Based on my knowledge, the financial statements and other financial information included in this report fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.			The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)			Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)			Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)			Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)			Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.			The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a)			All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

---

EXHIBIT 31.2

(b)			Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

November 5, 2020			/ s/ Jerry Cooksey
			Jerry Cooksey
			Chief Financial Officer
			(Principal Financial Officer)

EXHIBIT 32.1

CERTIFICATIONS OF CEO AND CFO PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT

CERTIFICATIONS PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

(18 U.S.C. SECTION 1350)

In connection with the Quarterly Report of Reliant Bancorp, Inc., a Tennessee corporation (the “Company”), on Form 10-Q for the quarter ended September 30, 2020, as filed with the Securities and Exchange Commission (the “Report”), each of DeVan D. Ard, Jr., Chief Executive Officer of the Company, and Jerry Cooksey, Chief Financial Officer of the Company, do hereby certify, pursuant to § 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. § 1350), that to his knowledge:

(1)			The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)			The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

November 5, 2020			/ s/ DeVan D. Ard, Jr.
			DeVan D. Ard, Jr.
			Chief Executive Officer
			(Principal Executive Officer)
November 5, 2020			/ s/ Jerry Cooksey
			Jerry Cooksey
			Chief Financial Officer
			(Principal Financial Officer)

v3.20.2

Cover Page - shares	9 Months Ended
	Sep. 30, 2020	Nov. 03, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2020
Document Transition Report	false
Entity File Number	001-37391
Entity Registrant Name	Reliant Bancorp, Inc.
Entity Incorporation, State or Country Code	TN
Entity Tax Identification Number	37-1641316
Entity Address, Address Line One	1736 Carothers Parkway,
Entity Address, Address Line Two	Suite 100,
Entity Address, City or Town	Brentwood,
Entity Address, State or Province	TN
Entity Address, Postal Zip Code	37027
City Area Code	615
Local Phone Number	221-2020
Title of 12(b) Security	Common Stock, $1.00 par value per share
Trading Symbol	RBNC
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		16,297,676
Entity Central Index Key	0001606440
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Amendment Flag	false

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v3.20.2

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
ASSETS
Cash and due from banks	$ 14,050	$ 7,953
Interest-bearing deposits in financial institutions	61,349	43,644
Federal funds sold	12,273	52
Total cash and cash equivalents	87,672	51,649
Securities available for sale	273,893	260,293
Loans	2,357,898	1,409,952
Less: Allowance for loan losses	(19,834)	(12,578)
Loans, net	2,338,064	1,397,374
Mortgage loans held for sale, net	99,587	37,476
Accrued interest receivable	14,615	7,188
Premises and equipment, net	33,319	21,064
Operating leases right of use assets	14,619
Restricted equity securities, at cost	17,367	11,279
Other real estate, net	1,326	750
Cash surrender value of life insurance contracts	68,109	46,632
Deferred tax assets, net	8,523	3,933
Goodwill	51,506	43,642
Core deposit intangibles	11,820	7,270
Other assets	24,092	13,292
TOTAL ASSETS	3,044,512	1,901,842
Deposits
Noninterest-bearing demand	538,844	260,681
Interest-bearing demand	272,805	152,718
Savings and money market deposit accounts	813,001	408,724
Time	940,852	762,330
Total deposits	2,565,502	1,584,453
Accrued interest payable	3,744	2,022
Federal funds purchased	5,000	0
Subordinated debentures	70,389	70,883
Federal Home Loan Bank advances	40,555	10,737
Operating leases liabilities	15,756
Other liabilities	36,480	9,994
TOTAL LIABILITIES	2,737,426	1,678,089
Preferred stock, $1 par value; 10,000,000 shares authorized, no shares issued to date	0	0
Common stock, $1 par value; 30,000,000 shares authorized; 16,634,572 and 11,206,254 shares issued and outstanding at September 30, 2020, and December 31, 2019, respectively	16,635	11,206
Additional paid-in capital	232,738	167,006
Retained earnings	55,206	40,472
Accumulated other comprehensive income	2,507	5,069
TOTAL SHAREHOLDERS’ EQUITY	307,086	223,753
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 3,044,512	$ 1,901,842

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- Definition Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 4 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121566466&loc=d3e6812-107765 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_CashSurrenderValueOfLifeInsurance Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_CommonStockValue Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=120406818&loc=d3e31931-109318 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=120406818&loc=d3e31917-109318 + Details Name: us-gaap_DeferredIncomeTaxAssetsNet Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.12) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details Name: us-gaap_Deposits Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- References No definition available. + Details Name: us-gaap_DepositsAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Amount of short term borrowing where a bank borrows, at the federal funds rate, from another bank. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(1)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details Name: us-gaap_FederalFundsPurchased Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition The amount outstanding of funds lent to other depository institutions, securities brokers, or securities dealers in the form of Federal Funds sold; for example, immediately available funds lent under agreements or contracts that mature in one business day or roll over under a continuing contract, regardless of the nature of the transaction or the collateral involved, excluding overnight lending for commercial and industrial purposes. Also include Federal Funds sold under agreements to resell on a gross basis, excluding (1) sales of term Federal Funds, (2) due bills representing purchases of securities or other assets by the reporting bank that have not yet been delivered and similar instruments, (3) resale agreements that mature in more than one business day involving assets other than securities, and (4) yield maintenance dollar repurchase agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.3) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details Name: us-gaap_FederalFundsSold Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of joint and several obligations consisting of consolidated obligation bonds and discount notes issued by Federal Home Loan Banks (FHLBanks). + References No definition available. + Details Name: us-gaap_FederalHomeLoanBankConsolidatedObligations Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Amount of Federal Home Loan Bank (FHLB) and Federal Reserve Bank stock. + References No definition available. + Details Name: us-gaap_FederalHomeLoanBankStockAndFederalReserveBankStock Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(2)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121599878&loc=SL82895884-210446 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details Name: us-gaap_FinancingReceivableAllowanceForCreditLosses Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 926 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details Name: us-gaap_FiniteLivedIntangibleAssetsNet Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)(1)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details Name: us-gaap_Goodwill Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition The aggregate of all domestic and foreign interest-bearing deposit liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.12) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details Name: us-gaap_InterestBearingDepositLiabilities Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition For banks and other depository institutions (including Federal Reserve Banks, if applicable): Interest-bearing deposits in other financial institutions for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=117340910&loc=d3e59706-112781 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.2) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details Name: us-gaap_InterestBearingDepositsInBanks Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Amount of interest payable on debt, including, but not limited to, trade payables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15(a)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details Name: us-gaap_InterestPayableCurrentAndNoncurrent Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.8) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_InterestReceivable Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=121559654&loc=d3e5710-111685 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19-26) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121559654&loc=d3e5710-111685 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)(1)(ii)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details Name: us-gaap_Liabilities Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(23)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(25)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)(1)(ii)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(32)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612 + Details Name: us-gaap_LiabilitiesAndStockholdersEquity Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Amount, after valuation allowance, of financing receivable held for sale and not part of disposal group. Excludes loan covered under loss sharing agreement and loan classified as investment in debt security. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=120238483&loc=d3e48678-111004 + Details Name: us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroup Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition The aggregate amount of all domestic and foreign noninterest-bearing deposits liabilities held by the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.12) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details Name: us-gaap_NoninterestBearingDepositLiabilities Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919230-210447 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 + Details Name: us-gaap_NotesReceivableNet Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details Name: us-gaap_OperatingLeaseLiability Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details Name: us-gaap_OperatingLeaseRightOfUseAsset Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of assets classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(10)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details Name: us-gaap_OtherAssets Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Amount of liabilities classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details Name: us-gaap_OtherLiabilities Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Carrying amount of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10(4)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details Name: us-gaap_OtherRealEstate Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_PreferredStockValue Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(14)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(8)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_PropertyPlantAndEquipmentNet Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)(1)(ii)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 4.E) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(31)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(30)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612 Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details Name: us-gaap_StockholdersEquity Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_SubordinatedDebt Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Amount of time deposit liabilities, including certificates of deposit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 405 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=116652737&loc=d3e64164-112818 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.12) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details Name: us-gaap_TimeDeposits Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

v3.20.2

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	30,000,000	30,000,000
Common stock, shares issued (in shares)	16,634,572	11,206,254
Common stock, shares outstanding (in shares)	16,634,572	11,206,254

X

- Definition Face amount or stated value per share of common stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_CommonStockParOrStatedValuePerShare Namespace Prefix: us-gaap_ Data Type: num:perShareItemType Balance Type: na Period Type: instant

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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_CommonStockSharesAuthorized Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: instant

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- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_PreferredStockParOrStatedValuePerShare Namespace Prefix: us-gaap_ Data Type: num:perShareItemType Balance Type: na Period Type: instant

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- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_PreferredStockSharesIssued Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: instant

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v3.20.2

CONSOLIDATED STATEMENTS OF INCOME - UNAUDITED - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
INTEREST INCOME
Interest and fees on loans	$ 32,895	$ 17,502	$ 86,987	$ 50,631
Interest and fees on loans held for sale	1,037	263	2,412	614
Interest on investment securities, taxable	399	549	978	1,639
Interest on investment securities, nontaxable	1,186	1,576	3,874	4,944
Federal funds sold and other	250	321	738	918
TOTAL INTEREST INCOME	35,767	20,211	94,989	58,746
Deposits
Demand	236	81	554	278
Savings and money market deposit accounts	1,162	976	3,668	3,156
Time	2,736	4,825	9,577	12,850
Federal Home Loan Bank advances and other	104	66	613	534
Subordinated debentures	992	199	2,967	590
TOTAL INTEREST EXPENSE	5,230	6,147	17,379	17,408
NET INTEREST INCOME	30,537	14,064	77,610	41,338
PROVISION FOR LOAN LOSSES	1,500	606	7,400	806
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	29,037	13,458	70,210	40,532
NONINTEREST INCOME
Service charges on deposit accounts	1,583	976	4,172	2,796
Gains on mortgage loans sold, net	3,783	1,385	7,605	3,170
Gain on securities transactions, net	0	0	327	306
Other noninterest income	635	399	1,602	1,124
TOTAL NONINTEREST INCOME	6,001	2,760	13,706	7,396
NONINTEREST EXPENSE
Salaries and employee benefits	12,184	7,634	33,885	22,605
Occupancy	2,054	1,359	5,566	4,069
Data processing and software	2,240	1,553	6,085	4,538
Professional fees	775	404	1,933	1,836
Regulatory Fees	365	(17)	1,356	596
Merger expenses	78	299	6,895	302
Other operating expense	2,637	1,815	6,476	4,973
TOTAL NONINTEREST EXPENSE	20,333	13,047	62,196	38,919
INCOME BEFORE PROVISION FOR INCOME TAXES	14,705	3,171	21,720	9,009
INCOME TAX EXPENSE	2,800	557	3,524	1,430
CONSOLIDATED NET INCOME	11,905	2,614	18,196	7,579
NONCONTROLLING INTEREST IN NET (INCOME) LOSS OF SUBSIDIARY	(374)	1,386	990	4,484
NET INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	$ 11,531	$ 4,000	$ 19,186	$ 12,063
Basic net income attributable to common shareholders, per share (in dollars per share)	$ 0.70	$ 0.36	$ 1.27	$ 1.07
Diluted net income attributable to common shareholders, per share (in dollars per share)	$ 0.69	$ 0.36	$ 1.27	$ 1.07

X

- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=116868678&loc=d3e1043-128460 + Details Name: us-gaap_BusinessCombinationAcquisitionRelatedCosts Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=120380238&loc=d3e4984-109258 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22644-107794 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=120380238&loc=d3e3842-109258 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121326447&loc=d3e1252-109256 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 11 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22595-107794 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22583-107794 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 60B -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121326447&loc=SL5780133-109256 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(27)) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(23)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 11 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=121326447&loc=d3e1337-109256 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(25)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details Name: us-gaap_EarningsPerShareDiluted Namespace Prefix: us-gaap_ Data Type: num:perShareItemType Balance Type: na Period Type: duration

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- Definition Amount of expense for Federal Deposit Insurance Corporation (FDIC) insurance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.14) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details Name: us-gaap_FederalDepositInsuranceCorporationPremiumExpense Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans made to finance real estate acquisitions. This element refers to the gain (loss) and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121581245&loc=d3e21310-158488 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121581245&loc=d3e21286-158488 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=117337389&loc=d3e21493-158490 + Details Name: us-gaap_GainLossOnSaleOfMortgageLoans Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68072869&loc=d3e41242-110953 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(10)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(8)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 235 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-05(b)(2)) -URI http://asc.fasb.org/extlink&oid=120399901&loc=d3e537907-122884 Reference 9: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8924-108599 Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(15)) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details Name: us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I.7) -URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32672-109319 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22663-107794 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 20 -Section 45 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120385591&loc=d3e38679-109324 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(9)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22658-107794 + Details Name: us-gaap_IncomeTaxExpenseBenefit Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition The amount of expenses incurred in the period for information technology and data processing products and services. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.6) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details Name: us-gaap_InformationTechnologyAndDataProcessing Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.1-5) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details Name: us-gaap_InterestAndDividendIncomeOperating Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- References No definition available. + Details Name: us-gaap_InterestAndDividendIncomeOperatingAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Interest and fee income generated by loans the Entity intends and has the ability to hold for the foreseeable future, or until maturity or payoff, including commercial and consumer loans, whether domestic or foreign, which may consist of: (1) industrial and agricultural; (2) real estate; and (3) real estate construction loans; (4) trade financing; (5) lease financing; (6) home equity lines-of-credit; (7) automobile and other vehicle loans; and (8) credit card and other revolving-type loans. Also includes interest income for leases held by the Entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.1) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details Name: us-gaap_InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Interest and fee income from mortgage loans considered to be held-for-sale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.1) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details Name: us-gaap_InterestAndFeeIncomeLoansHeldForSaleMortgages Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Amount of the cost of borrowed funds accounted for as interest expense. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28555-108399 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (210.5-03(11)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.9) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details Name: us-gaap_InterestExpense Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition Interest expense incurred on demand deposit accounts that represent borrowings rather than outstanding drafts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.6) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details Name: us-gaap_InterestExpenseDemandDepositAccounts Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- References No definition available. + Details Name: us-gaap_InterestExpenseDomesticDepositsAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Interest expense incurred during the reporting period on short-term borrowings associated with Federal Home Loan Bank and Federal Reserve Bank advances. + References No definition available. + Details Name: us-gaap_InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition The aggregate interest expense incurred on the following for deposits in domestic offices: (1) transaction accounts (NOW, and telephone and preauthorized transfer accounts), (2) money market deposits and (3) savings deposits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.6) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details Name: us-gaap_InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDeposits Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition Interest expense incurred during the reporting period on subordinated notes and debentures. Includes amortization of expenses incurred in the issuance of subordinated notes and debentures. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.8) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details Name: us-gaap_InterestExpenseSubordinatedNotesAndDebentures Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition The aggregate interest expense incurred on time deposits, including certificates of deposits, in domestic offices. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.6) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details Name: us-gaap_InterestExpenseTimeDeposits Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition Amount of interest income or expense, including any amortization and accretion (as applicable) of discounts and premiums, including consideration of the provisions for loan, lease, credit, and other related losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.12) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details Name: us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition The net amount of operating interest income (expense). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.10) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details Name: us-gaap_InterestIncomeExpenseNet Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Interest income on federal funds sold. Federal funds sold represent the excess federal funds held by one commercial bank which it lends to another commercial bank, usually at an agreed-upon (federal funds) rate of interest. Such loans generally are of short-duration (overnight). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.4) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details Name: us-gaap_InterestIncomeFederalFundsSold Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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v3.20.2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - UNAUDITED - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Consolidated net income	$ 11,905	$ 2,614	$ 18,196	$ 7,579
Other comprehensive income (loss)
Net unrealized gains on available-for-sale securities, net of tax of ($357) and ($973) for the three months ended September 30, 2020 and 2019, respectively, and ($864) and ($3,935) for the nine months ended September 30, 2020 and 2019, respectively	1,008	2,736	2,442	11,122
Net unrealized losses on interest rate swap derivatives net of tax of ($133) and $98 for the three months ended September 30, 2020 and 2019, respectively, and $1,685 and $569 for the nine months ended September 30, 2020 and 2019, respectively	375	(275)	(4,762)	(1,606)
Net unrealized losses on interest rate swap derivatives net of tax of ($133) and $98 for the three months ended September 30, 2020 and 2019, respectively, and $1,685 and $569 for the nine months ended September 30, 2020 and 2019, respectively		(275)		(1,606)
Reclassification adjustment for gains included in net income, net of tax of $0 and $0 for the three months ended September 30, 2020 and 2019, respectively, and $85 and $80 for the nine months ended September 30, 2020 and 2019, respectively	0	0	(242)	(226)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	1,383	2,461	(2,562)	9,290
TOTAL COMPREHENSIVE INCOME	$ 13,288	$ 5,075	$ 15,634	$ 16,869

X

- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=120409616&loc=SL4591552-111686 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669619-108580 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(20)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669625-108580 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(22)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(24)) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details Name: us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Amount after tax and reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669619-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32136-110900 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=121640130&loc=d3e1436-108581 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669625-108580 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details Name: us-gaap_OtherComprehensiveIncomeLossNetOfTax Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Amount after tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121558989&loc=d3e80720-113993 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e637-108580 + Details Name: us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e637-108580 + Details Name: us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)(1)(ii)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669619-108580 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721683-107760 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 235 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-05(b)(2)) -URI http://asc.fasb.org/extlink&oid=120399901&loc=d3e537907-122884 Reference 8: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name 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-Section 50 -Paragraph 32 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 14: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=120409616&loc=SL4591551-111686 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3000-108585 Reference 17: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683 Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 20: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI 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v3.20.2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - UNAUDITED (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net unrealized gains on available-for-sale securities, tax	$ (357)	$ (973)	$ (864)	$ (3,935)
Net unrealized loss on interest rate swap derivatives, tax	(133)	98	1,685	569
Reclassification adjustment for gains included in net income, tax	$ 0	$ 0	$ 85	$ 80

X

- Definition Amount, before reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e640-108580 + Details Name: us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e640-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27357-111563 + Details Name: us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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v3.20.2

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY - UNAUDITED - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	COMMON STOCK	ADDITIONAL PAID-IN CAPITAL	RETAINED EARNINGS	RETAINED EARNINGS Cumulative Effect, Period of Adoption, Adjustment	ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)	NONCONTROLLING INTEREST
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of lease standard adoption	$ 208,414		$ 11,531	$ 173,238	$ 27,329		$ (3,684)	$ 0
Balance (in shares) at Dec. 31, 2018			11,530,810
Balance at Dec. 31, 2018	208,414		$ 11,531	173,238	27,329		(3,684)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock based compensation expense	250			250
Exercise of stock options (in shares)			2,183
Exercise of stock options	28		$ 2	26
Restricted stock awards (in shares)			3,000
Restricted stock awards	0		$ 3	(3)
Restricted stock forfeiture (in shares)			(3,750)
Restricted stock forfeiture	1		$ (4)	4	1
Common stock shares redeemed (in shares)			(29,958)
Common stock shares redeemed	(659)		$ (30)	(629)
Noncontrolling interest contributions	1,543							1,543
Cash dividend declared to common shareholders	(1,035)				(1,035)
Cumulative effect of lease standard adoption	215,119		$ 11,502	172,886	30,119		612	0
Net income (loss)	2,281				3,824			(1,543)
Other comprehensive income (loss)	4,296						4,296
Balance (in shares) at Mar. 31, 2019			11,502,285
Balance at Mar. 31, 2019	215,119		$ 11,502	172,886	30,119		612	0
Balance (in shares) at Dec. 31, 2018			11,530,810
Balance at Dec. 31, 2018	208,414		$ 11,531	173,238	27,329		(3,684)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of lease standard adoption	219,652		$ 11,195	166,512	36,339		5,606	0
Net income (loss)	7,579
Other comprehensive income (loss)	9,290
Balance (in shares) at Sep. 30, 2019			11,195,062
Balance at Sep. 30, 2019	219,652		$ 11,195	166,512	36,339		5,606	0
Balance (in shares) at Dec. 31, 2018			11,530,810
Balance at Dec. 31, 2018	208,414		$ 11,531	173,238	27,329		(3,684)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of lease standard adoption	$ 208,414	$ 100	$ 11,531	173,238	27,329	$ 100	(3,684)	0
Balance (in shares) at Dec. 31, 2019	11,206,254		11,206,254
Balance at Dec. 31, 2019	$ 223,753	100	$ 11,206	167,006	40,472	100	5,069	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201602Member
Cumulative effect of lease standard adoption	$ 215,119		$ 11,502	172,886	30,119		612	0
Balance (in shares) at Mar. 31, 2019			11,502,285
Balance at Mar. 31, 2019	215,119		$ 11,502	172,886	30,119		612	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock based compensation expense	280			280
Exercise of stock options (in shares)			24,523
Exercise of stock options	323		$ 25	298
Employee stock purchase plan stock issuance (in shares)			4,728
Employee Stock Purchase Plan stock issuance	90		$ 5	85
Restricted stock awards (in shares)			5,000
Restricted stock awards	0		$ 5	(5)
Restricted stock and dividend forfeiture (in shares)			(4,000)
Restricted stock and dividend forfeiture	0		$ (4)	4
Common stock shares redeemed (in shares)			(335,973)
Common stock shares redeemed	(7,632)		$ (336)	(7,296)
Noncontrolling interest contributions	1,555							1,555
Cash dividend declared to common shareholders	(1,009)				(1,009)
Cumulative effect of lease standard adoption	213,943		$ 11,197	166,252	33,349		3,145	0
Net income (loss)	2,684				4,239			(1,555)
Other comprehensive income (loss)	2,533						2,533
Balance (in shares) at Jun. 30, 2019			11,196,563
Balance at Jun. 30, 2019	213,943		$ 11,197	166,252	33,349		3,145	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of lease standard adoption	213,943		$ 11,197	166,252	33,349		3,145	0
Stock based compensation expense	337			337
Exercise of stock options (in shares)			600
Exercise of stock options	9		$ 1	8
Restricted stock awards (in shares)			1,500
Restricted stock awards	0		$ 1	(1)
Restricted shares withheld for taxes (in shares)			(3,601)
Restricted shares withheld for taxes	88		$ 4	84
Noncontrolling interest contributions	1,386							1,386
Cash dividend declared to common shareholders	(1,010)				(1,010)
Cumulative effect of lease standard adoption	219,652		$ 11,195	166,512	36,339		5,606	0
Net income (loss)	2,614				4,000			(1,386)
Other comprehensive income (loss)	2,461						2,461
Balance (in shares) at Sep. 30, 2019			11,195,062
Balance at Sep. 30, 2019	219,652		$ 11,195	166,512	36,339		5,606	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of lease standard adoption	219,652		11,195	166,512	36,339		5,606	0
Cumulative effect of lease standard adoption	$ 223,753	100	$ 11,206	167,006	40,472	100	5,069	0
Balance (in shares) at Dec. 31, 2019	11,206,254		11,206,254
Balance at Dec. 31, 2019	$ 223,753	100	$ 11,206	167,006	40,472	100	5,069	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock based compensation expense	349			349
Exercise of stock options (in shares)			868
Exercise of stock options	8		$ 1	7
Restricted stock and dividend forfeiture (in shares)			(3,837)
Restricted stock and dividend forfeiture	(73)		$ (4)	(69)
Conversion shares issued to shareholders (in shares)			811,210
Conversion shares issued to shareholders	18,041		$ 811	17,230
Noncontrolling interest contributions	976							976
Cash dividend declared to common shareholders	(1,207)				(1,207)
Cumulative effect of lease standard adoption	234,672	100	$ 12,014	184,523	39,150	100	(1,015)	0
Net income (loss)	(1,191)				(215)			(976)
Other comprehensive income (loss)	(6,084)						(6,084)
Balance (in shares) at Mar. 31, 2020			12,014,495
Balance at Mar. 31, 2020	$ 234,672		$ 12,014	184,523	39,150		(1,015)	0
Balance (in shares) at Dec. 31, 2019	11,206,254		11,206,254
Balance at Dec. 31, 2019	$ 223,753	100	$ 11,206	167,006	40,472	100	5,069	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)	6,544
Cumulative effect of lease standard adoption	$ 307,086	$ 100	$ 16,635	232,738	55,206	$ 100	2,507	0
Net income (loss)	18,196
Other comprehensive income (loss)	$ (2,562)
Balance (in shares) at Sep. 30, 2020	16,634,572		16,634,572
Balance at Sep. 30, 2020	$ 307,086		$ 16,635	232,738	55,206		2,507	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201602Member
Cumulative effect of lease standard adoption	$ 234,672		$ 12,014	184,523	39,150		(1,015)	0
Balance (in shares) at Mar. 31, 2020			12,014,495
Balance at Mar. 31, 2020	234,672		$ 12,014	184,523	39,150		(1,015)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock based compensation expense	485			485
Exercise of stock options (in shares)			1,021
Exercise of stock options	15		$ 1	14
Employee stock purchase plan stock issuance (in shares)			8,344
Employee Stock Purchase Plan stock issuance	116		$ 8	108
Restricted stock awards (in shares)			3,022
Restricted stock awards	0		$ 3	(3)
Restricted stock and dividend forfeiture (in shares)			(1,697)
Restricted stock and dividend forfeiture	0		$ (1)	1
Conversion shares issued to shareholders (in shares)			4,606,419
Conversion shares issued to shareholders	51,915		$ 4,607	47,308
Noncontrolling interest contributions	388							388
Cash dividend declared to common shareholders	(1,667)				(1,667)
Cumulative effect of lease standard adoption	295,543		$ 16,632	232,436	45,351		1,124	0
Net income (loss)	7,480				7,868			(388)
Other comprehensive income (loss)	2,139						2,139
Balance (in shares) at Jun. 30, 2020			16,631,604
Balance at Jun. 30, 2020	295,543		$ 16,632	232,436	45,351		1,124	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of lease standard adoption	295,543		$ 16,632	232,436	45,351		1,124	0
Stock based compensation expense	349			349
Exercise of stock options (in shares)			4,655
Exercise of stock options	66		$ 5	61
Restricted stock units vesting, net of taxes withheld (in shares)			8,030
Restricted stock units vesting, net of taxes withheld	(6)		$ 8	(14)
Restricted stock and dividend forfeiture (in shares)			(9,717)
Restricted stock and dividend forfeiture	(103)		$ (10)	(94)
Noncontrolling interest contributions	(374)							(374)
Cash dividend declared to common shareholders	(1,676)				(1,676)
Cumulative effect of lease standard adoption	307,086		$ 16,635	232,738	55,206		2,507	0
Net income (loss)	11,905				11,531			374
Other comprehensive income (loss)	$ 1,383						1,383
Balance (in shares) at Sep. 30, 2020	16,634,572		16,634,572
Balance at Sep. 30, 2020	$ 307,086		$ 16,635	232,738	55,206		2,507	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of lease standard adoption	$ 307,086		$ 16,635	$ 232,738	$ 55,206		$ 2,507	$ 0

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v3.20.2

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY - UNAUDITED (Parenthetical) - $ / shares	3 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019
Statement of Stockholders' Equity [Abstract]
Cash dividends declared to common shareholders (in dollars per share)	$ 0.10	$ 0.10	$ 0.10	$ 0.09	$ 0.09	$ 0.09

X

- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 + Details Name: us-gaap_CommonStockDividendsPerShareDeclared Namespace Prefix: us-gaap_ Data Type: num:perShareItemType Balance Type: na Period Type: duration

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v3.20.2

CONSOLIDATED STATEMENTS OF CASH FLOWS - UNAUDITED - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
OPERATING ACTIVITIES
Consolidated net income	$ 18,196	$ 7,579
Adjustments to reconcile consolidated net income to net cash (used in) provided by operating activities
Provision for loan losses	7,400	806
Deferred income taxes	2,003	3,686
Gain on disposal of premises and equipment	(1)	0
Depreciation and amortization of premises and equipment	2,084	1,486
Net amortization of securities	1,980	2,302
Net realized gains on sales of securities	(327)	(306)
Gains on mortgage loans sold, net	(7,605)	(3,170)
Stock-based compensation expense	1,183	867
Gain on other real estate	(24)	0
Increase in cash surrender value of life insurance contracts	(1,073)	(838)
Mortgage loans originated for resale	(327,521)	(106,520)
Proceeds from sale of mortgage loans	278,893	108,756
Cash payments arising from operating leases	2,327
Other accretion, net of other amortization	(10,748)	(477)
Change in
Accrued interest receivable	(4,094)	726
Other assets	(4,535)	508
Accrued interest payable	(526)	547
Other liabilities	6,497	(6,392)
TOTAL ADJUSTMENTS	(54,087)	1,981
NET CASH (USED IN) PROVIDED BY OPERATING ACTIVITIES	(35,891)	9,560
INVESTING ACTIVITIES
Cash used to convert shares, and redeem stock options and fractional shares, net of cash received	(8,500)	0
Activities in available for sale securities
Purchases	(31,179)	(47,870)
Proceeds	103,901	52,434
Maturities, prepayments and calls	10,370	8,587
(Purchases) redemptions of restricted equity securities	(1,867)	411
Net increase in loans	(146,777)	(118,758)
Purchase of premises and equipment	(2,709)	(843)
Proceeds from sale of premises and equipment	257	0
Proceeds from sale of other real estate	2,273	0
NET CASH USED IN INVESTING ACTIVITIES	(74,231)	(106,039)
FINANCING ACTIVITIES
Net change in deposits	163,839	172,741
Proceeds from Federal Home Loan Bank Advances	444,000	163,824
Payments on Federal Home Loan Bank Advances	(463,156)	(217,353)
Proceeds from Federal Funds Purchased	5,000	0
Issuance of common stock, net of repurchase of restricted shares	(177)	272
Issuance of common stock related to exercise of stock options and ESPP	199	90
Redemption of common stock	0	(8,291)
Noncontrolling interest contributions received	990	4,415
Cash dividends paid on common stock	(4,550)	(3,077)
NET CASH PROVIDED BY FINANCING ACTIVITIES	146,145	112,621
NET CHANGE IN CASH AND CASH EQUIVALENTS	36,023	16,142
CASH AND CASH EQUIVALENTS - BEGINNING OF PERIOD	51,649	35,178
CASH AND CASH EQUIVALENTS - END OF PERIOD	87,672	51,320
Cash paid during the period for
Interest	20,508	16,861
Taxes	4,565	1,607
Non-cash investing and financing activities
Change in due to/from noncontrolling interest	990	4,484
Acquired bank facilities no longer in use transferred to other real estate owned and foreclosed assets from premises and equipment	2,420	0
Loans foreclosed and transferred to other real estate owned and foreclosed assets	$ 197	$ 943

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- Definition The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details Name: us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition The sum of adjustments which are added to or deducted from net income or loss, including the portion attributable to noncontrolling interest, to reflect cash provided by or used in operating activities, in accordance with the indirect cash flow method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details Name: us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition Earnings on or other increases in the value of the cash surrender value of bank owned life insurance policies. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details Name: us-gaap_BankOwnedLifeInsuranceIncome Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3521-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3044-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=121583591&loc=SL98516268-108586 + Details Name: us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Amount of unrealized and realized gain (loss) on investment in debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(9)(a)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(7)(c)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details Name: us-gaap_DebtAndEquitySecuritiesGainLoss Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.7) -URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.Fact.1) -URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.Fact.2) -URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319 + Details Name: us-gaap_DeferredIncomeTaxExpenseBenefit Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details Name: us-gaap_DepreciationDepletionAndAmortization Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans made to finance real estate acquisitions. This element refers to the gain (loss) and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121581245&loc=d3e21310-158488 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121581245&loc=d3e21286-158488 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=117337389&loc=d3e21493-158490 + Details Name: us-gaap_GainLossOnSaleOfMortgageLoans Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details Name: us-gaap_GainLossOnSaleOfPropertyPlantEquipment Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition The net gain (loss) resulting from sales and other disposals of other real estate owned, increases (decreases) in the valuation allowance for foreclosed real estate, and write-downs of other real estate owned after acquisition or physical possession. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.14(d)) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details Name: us-gaap_GainsLossesOnSalesOfOtherRealEstate Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition The net cash inflow or outflow from the fund borrowed from other financial institution arising from the insufficient reserve deposited at Federal Reserve Bank to meet legal requirement. This borrowing is usually contracted on an overnight basis at an agreed rate of interest. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3098-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3095-108585 + Details Name: us-gaap_IncreaseDecreaseInFederalFundsPurchased Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition The increase (decrease) during the reporting period in interest payable, which represents the amount owed to note holders, bond holders, and other parties for interest earned on loans or credit extended to the reporting entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details Name: us-gaap_IncreaseDecreaseInInterestPayableNet Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition Net Increase or Decrease in balance of noncontrolling interest in the subsidiary during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4568740-111683 + Details Name: us-gaap_MinorityInterestPeriodIncreaseDecrease Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: na Period Type: duration

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- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3521-108585 + Details Name: us-gaap_NetCashProvidedByUsedInFinancingActivities Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- References No definition available. + Details Name: us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3521-108585 + Details Name: us-gaap_NetCashProvidedByUsedInInvestingActivities Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- References No definition available. + Details Name: us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3521-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details Name: us-gaap_NetCashProvidedByUsedInOperatingActivities Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: na Period Type: duration

X

- References No definition available. + Details Name: us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918643-209977 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(1) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 + Details Name: us-gaap_OperatingLeasePayments Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition The amount of cash paid for the origination of mortgages that are held for sale. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3461-108585 + Details Name: us-gaap_PaymentsForOriginationOfMortgageLoansHeldForSale Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition Amount of cash outflow (inflow) from acquisition (sale) of Federal Home Loan Bank (FHLBank) stock. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690 + Details Name: us-gaap_PaymentsForProceedsFromFederalHomeLoanBankStock Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- References No definition available. + Details Name: us-gaap_PaymentsForProceedsFromInvestmentsAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition The net amount paid or received by the reporting entity associated with purchase (sale or collection) of loans receivable arising from the financing of goods and services. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3098-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3095-108585 + Details Name: us-gaap_PaymentsForProceedsFromLoansReceivable Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585 + Details Name: us-gaap_PaymentsForRepurchaseOfCommonStock Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585 + Details Name: us-gaap_PaymentsOfDividendsCommonStock Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition Amount of cash outflow to acquire investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3151-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121553693&loc=d3e26853-111562 + Details Name: us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585 + Details Name: us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585 + Details Name: us-gaap_PaymentsToAcquireProductiveAssets Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition Amount of cash inflow from Federal Home Loan Bank (FHLBank) borrowing, classified as financing activity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details Name: us-gaap_ProceedsFromFederalHomeLoanBankBorrowings Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details Name: us-gaap_ProceedsFromIssuanceOfCommonStock Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Amount of cash inflow from maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121553693&loc=d3e26853-111562 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3151-108585 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585 + Details Name: us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Amount of cash inflow from a noncontrolling interest. Includes, but is not limited to, purchase of additional shares or other increase in noncontrolling interest ownership. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details Name: us-gaap_ProceedsFromMinorityShareholders Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121553693&loc=d3e26853-111562 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3151-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585 + Details Name: us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition The cash inflow from sales of loans that are secured with real estate mortgages and are held with the intention to resell in the near future. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3461-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585 + Details Name: us-gaap_ProceedsFromSaleOfMortgageLoansHeldForSale Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition The cash inflow associated with the sale of other real estate not otherwise defined in the taxonomy. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585 + Details Name: us-gaap_ProceedsFromSaleOfOtherRealEstate Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585 + Details Name: us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Amount of cash inflow from exercise of option under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120381028&loc=SL79508275-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details Name: us-gaap_ProceedsFromStockOptionsExercised Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)(1)(ii)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669619-108580 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721683-107760 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting 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X

- Definition Amount of cash outflow for repayment of Federal Home Loan Bank (FHLBank) borrowing, classified as financing activity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585 + Details Name: us-gaap_RepaymentsOfFederalHomeLoanBankBorrowings Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details Name: us-gaap_ShareBasedCompensation Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- References No definition available. + Details Name: us-gaap_SupplementalCashFlowInformationAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Value transferred from mortgage loans to real estate owned (REO) in noncash transactions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4313-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4332-108586 + Details Name: us-gaap_TransferToOtherRealEstate Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

v3.20.2

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Nature of Operations Reliant Bancorp, Inc. is a Tennessee corporation and the holding company for and the sole shareholder of Reliant Bank (the "Bank"), collectively, "the Company". Reliant Bancorp is registered as a financial holding company under the Bank Holding Company Act of 1956, as amended ("Bank Holding Company Act"). Reliant Bank is a commercial bank chartered under Tennessee law and a member of the Federal Reserve System (the "Federal Reserve"). The Bank provides a full range of traditional banking products and services to business and consumer clients throughout Middle Tennessee. Reliant Risk Management, Inc., a wholly-owned insurance captive subsidiary of Reliant Bancorp, that began operations on June 1, 2020, is a Tennessee-based captive insurance company which insures Reliant Bancorp and the Bank against certain risks unique to their operations and for which insurance may not be currently available or economically feasible in today's insurance marketplace. Reliant Risk Management, Inc. pools resources with several other similar insurance company subsidiaries of financial institutions to spread a limited amount of risk among themselves. Reliant Risk Management, Inc. is subject to regulations of the State of Tennessee and undergoes periodic examinations by the Tennessee Department of Commerce and Insurance. Basis of Presentation The accompanying unaudited consolidated financial statements have been prepared in accordance with instructions to Quarterly Report on Form 10-Q and therefore do not include all information and footnotes necessary for a fair presentation of financial position, results of operations, and cash flows in conformity with accounting principles generally accepted in the United States of America ("U.S. GAAP"). All adjustments consisting of normally recurring accruals that, in the opinion of management, are necessary for a fair presentation of the financial position and results of operations for the periods covered by the report have been included.  The accompanying unaudited consolidated financial statements should be read in conjunction with the Company's consolidated financial statements and related notes appearing in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019. The consolidated financial statements as of and for the periods presented include Reliant Bancorp, Inc., its wholly-owned direct and indirect subsidiaries and Reliant Mortgage Ventures, LLC ("RMV"), of which the Bank controls 51% of the governance rights. As described in Note 12 to these unaudited consolidated financial statements, Reliant Bancorp, Inc. and TCB Holdings merged effective on January 1, 2020, and Reliant Bancorp, Inc. and FABK merged effective April 1, 2020. Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions based on available information. These estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to determination of the allowance for loan losses, the valuation of other real estate, the valuation of debt and equity securities, the valuation of deferred tax assets and fair values of financial instruments. The consolidated financial statements as of September 30, 2020, and for the three and nine months ended September 30, 2020 and 2019, included herein have not been audited. The accounting and reporting policies of the Company conform to U.S. GAAP and Article 8 of Regulation S-X. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission, although the Company believes that the disclosures made are adequate to make the information not misleading. The accompanying consolidated financial statements reflect all adjustments which, in the opinion of management, are necessary to present a fair statement of the results for the interim periods presented. Such adjustments are of a normal recurring nature. The Company evaluates subsequent events through the date of filing. Certain prior period amounts have been reclassified to conform to the current period presentation. The results for the three and nine months ended September 30, 2020 are not necessarily indicative of the results that may be expected for the year ending December 31, 2020. Recently Adopted Accounting Pronouncements Information about certain issued accounting standards updates is presented below. Also refer to Note 1 - Summary of Significant Accounting Policies, “Recent Authoritative Accounting Guidance” in the Company's Annual Report on Form 10-K for the year ended December 31, 2019 for additional information related to previously issued accounting standards updates. ASU 2016-02, “Leases (Topic 842).” ASU 2016-02 requires lessees to recognize a lease liability, which is a lessee's obligation to make lease payments arising from a lease, measured on a discounted basis, and a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. ASU 2016-02 went into effect for the Company on January 1, 2020 and the Company elected the prospective application approach provided by ASU 2018-11 and did not adjust prior periods for ASC 842. The Company also elected certain practical expedients within the standard and consistent with such elections did not reassess whether any expired or existing contracts are or contain leases, did not reassess the lease classification for any expired or existing leases, and did not reassess any initial direct costs for existing leases. The effect of implementing this pronouncement resulted in right to use assets of $11,973 and a similar corresponding liability, as of January 1, 2020. ASU 2017-04, “Intangibles - Goodwill and Other (Topic 350) - Simplifying the Test for Goodwill Impairment.” ASU 2017-04 eliminates Step 2 from the goodwill impairment test which required entities to compute the implied fair value of goodwill. Under ASU 2017-04, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. ASU 2017-04 was early adopted as of January 1, 2020 and did not have a significant impact on the Company's consolidated financial statements as it simplifies the test of impairment of goodwill. ASU 2020-04, "Reference Rate Reform (Topic 848) - Facilitation of the Effects of Reference Rate Reform on Financial Reporting." In March 2020, the FASB issued Topic 848 amendments to provide optional guidance for a limited period of time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. It provides optional expedients and exceptions for applying generally accepted accounting principles to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The amendments in this update are effective for all entities as of March 12, 2020 through December 31, 2022. The Company has evaluated the effect of the pronouncement on the consolidated financial statements, noting no significant impact. Newly Issued not yet Effective Accounting Standards ASU 2016-13, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” ASU 2016-13 requires the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts and requires enhanced disclosures related to the significant estimates and judgments used in estimating credit losses, as well as the credit quality and underwriting standards of an organization’s portfolio. In addition, ASU 2016-13 amends the accounting for credit losses on available for sale debt securities and purchased financial assets with credit deterioration. ASU 2016-13 is expected to be effective for the Company on January 1, 2023. We are currently evaluating the potential impact of ASU 2016-13 on the Company's financial statements by developing an implementation plan to include assessment of processes, portfolio segmentation, model development, system requirements and the identification of data and resource needs, among other things. The adoption of ASU 2016-13 could result in an increase in the allowance for loan losses as a result of changing from an “incurred loss” model, which encompasses allowances for current known and inherent losses within the portfolio, to an “expected loss” model, which encompasses allowances for losses expected to be incurred over the life of the portfolio. Furthermore, ASU 2016-13 will necessitate that we establish an allowance for expected credit losses for certain debt securities and other financial assets. In April 2019, the FASB issued ASU No. 2019-04, Codification Improvements to Financial Instruments - Credit Losses (ASC 326), Derivatives and Hedging (ASC 815), and Financial Instruments (ASC 825). The amendments in this ASU improve the codification by eliminating inconsistencies and providing clarifications. The amended guidance in this ASU related to credit losses is expected to be effective for the Company in conjunction with the adoption of the standard on January 1, 2023. The Company is currently evaluating the impact of these ASUs on the Company’s consolidated financial statements. While we are currently unable to reasonably estimate the impact of adopting these ASUs, we expect that the impact of adoption will be significantly influenced by the composition, characteristics and quality of the Company's loan and securities portfolios as well as the prevailing economic conditions and forecasts as of the adoption date.

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v3.20.2

Securities	9 Months Ended
	Sep. 30, 2020
Investments, Debt and Equity Securities [Abstract]
SECURITIES	SECURITIES The amortized cost and fair value of available for sale securities and the related gross unrealized gains and losses recognized in accumulated other comprehensive income at September 30, 2020 and December 31, 2019 were as follows: September 30, 2020 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value U. S. Treasury and other U. S. government agencies $ 12,117  $ 1  $ (1) $ 12,117  State and municipal 175,976  14,717  (70) 190,623  Corporate bonds 15,750  167  (108) 15,809  Mortgage-backed securities 41,240  348  (1,212) 40,376  Asset-backed securities 15,199  —  (231) 14,968 Total $ 260,282  $ 15,233  $ (1,622) $ 273,893  December 31, 2019 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value U. S. Treasury and other U. S. government agencies $ 59  $ —  $ —  $ 59  State and municipal 186,283  10,413  (36) 196,660  Corporate bonds 7,880  97  (132) 7,845  Mortgage-backed securities 38,126  296  (661) 37,761  Asset-backed securities 18,374  —  (406) 17,968  Total $ 250,722  $ 10,806  $ (1,235) $ 260,293  Securities pledged at September 30, 2020 and December 31, 2019 had a carrying amount of $43,406 and $46,918, respectively, and were pledged to collateralize Federal Home Loan Bank ("FHLB") advances, Federal Reserve Bank ("FRB") advances and municipal deposits. The fair values of available for sale debt securities at September 30, 2020 by contractual maturity are provided below. Actual maturities may differ from contractual maturities for mortgage- and asset-backed securities since the underlying asset may be called or prepaid with or without penalty. Securities not due at a single maturity date are shown separately. Results from sales of securities were as follows: Nine months ended September 30, 2020 September 30, 2019 Proceeds $ 103,901  $ 52,434  Gross gains 810  475  Gross losses (483) (169) Amortized Cost Estimated Fair Value Due within one year $ 12,567  $ 12,565  Due in one to five years 2,175  2,186  Due in five to ten years 17,222  17,965  Due after ten years 171,879  185,833  Mortgage-backed securities 41,240  40,376  Asset-backed securities 15,199  14,968  Total $ 260,282  $ 273,893  The following table shows available for sale securities with unrealized losses and their estimated fair value aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position as of September 30, 2020 and December 31, 2019, respectively: Less than 12 months 12 months or more Total Estimated Fair Value Unrealized Loss Estimated Fair Value Unrealized Loss Estimated Fair Value Unrealized Loss September 30, 2020 U. S. Treasury and other U. S. government agencies $ 12,066  $ 1  $ —  $ —  $ 12,066  $ 1  State and municipal 7,319  70  —  —  7,319  70  Corporate bonds 9,142  107  500  1  9,642  108  Mortgage-backed securities 6,613  282  20,982  930  27,595  1,212  Asset-backed securities 790  1  14,092  230  14,882  231  Total temporarily impaired $ 35,930  $ 461  $ 35,574  $ 1,161  $ 71,504  $ 1,622  December 31, 2019 U. S. Treasury and other U. S. government agencies $ —  $ —  $ —  $ —  $ —  $ —  State and municipal 1,960  36  —  —  1,960  36  Corporate bonds —  —  2,499  132  2,499  132  Mortgage-backed securities 16,104  286  9,081  375  25,185  661  Asset-backed securities —  —  17,682  406  17,682  406  Total temporarily impaired $ 18,064  $ 322  $ 29,262  $ 913  $ 47,326  $ 1,235  Management has the intent and ability to hold all securities in an unrealized loss position for the foreseeable future, and the decline in fair value is largely due to changes in interest rates. As the fair value is expected to recover as the securities approach their maturity date and/or market rates decline, we do not consider these securities to be other-than-temporarily impaired at September 30, 2020. There were 43 and 47 securities in an unrealized loss position as of September 30, 2020 and December 31, 2019, respectively.

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v3.20.2

Loans and Allowance for Loan Losses	9 Months Ended
	Sep. 30, 2020
Receivables [Abstract]
LOANS AND ALLOWANCE FOR LOAN LOSSES	LOANS AND ALLOWANCE FOR LOAN LOSSES Loans at September 30, 2020 and December 31, 2019 were comprised as follows: September 30, 2020 December 31, 2019 Commercial, Industrial and Agricultural $ 477,785  $ 245,515  Real Estate     1-4 Family Residential 334,730  227,529      1-4 Family HELOC 101,492  96,228      Multi-family and Commercial 864,756  536,845      Construction, Land Development and Farmland 366,760  273,872  Consumer 209,071  16,855  Other 8,259  13,180  Gross loans 2,362,853  1,410,024      Less: Deferred loan fees 4,955  72      Less: Allowance for loan losses 19,834  12,578  Loans, net $ 2,338,064  $ 1,397,374  Activity in the allowance for loan losses by portfolio segment was as follows for the three months ended September 30, 2020 and September 30, 2019, respectively: Commercial Industrial and Agricultural Multi-family and Commercial Real Estate Construction Land Development and Farmland 1-4 Family Residential Real Estate 1-4 Family HELOC Consumer Other Total Beginning balance at June 30, 2020 $ 4,675  $ 8,407  $ 2,126  $ 1,454  $ 975  $ 584  $ 16  $ 18,237  Charge-offs —  —  —  (8) —  (60) —  (68) Recoveries 88  9  4  22  12  30  —  165  Provision 249  (169) (175) 821  498  272  4  1,500  Ending balance at September 30, 2020 $ 5,012  $ 8,247  $ 1,955  $ 2,289  $ 1,485  $ 826  $ 20  $ 19,834  Beginning balance at June 30, 2019 $ 1,881  $ 4,713  $ 2,707  $ 1,455  $ 686  $ 188  $ 36  $ 11,666  Charge-offs (2) —  —  (12) —  (16) (21) (51) Recoveries 48  3  (201) 4  —  16  200  70  Provision 372  472  7  (64) 18  (18) (181) 606  Ending balance at September 30, 2019 $ 2,299  $ 5,188  $ 2,513  $ 1,383  $ 704  $ 170  $ 34  $ 12,291  Activity in the allowance for loan losses by portfolio segment was as follows for the nine months ended September 30, 2020 and September 30, 2019, respectively: Commercial Industrial and Agricultural Multi-family and Commercial Real Estate Construction Land Development and Farmland 1-4 Family Residential Real Estate 1-4 Family HELOC Consumer Other Total Beginning balance at December 31, 2019 $ 2,529  $ 5,285  $ 2,649  $ 1,280  $ 624  $ 177  $ 34  $ 12,578  Charge-offs (507) —  (114) (68) (98) (355) —  (1,142) Recoveries 126  20  8  769  15  60  —  998  Provision 2,864  2,942  (588) 308  944  944  (14) 7,400  Ending balance at September 30, 2020 $ 5,012  $ 8,247  $ 1,955  $ 2,289  $ 1,485  $ 826  $ 20  $ 19,834  Beginning balance at December 31, 2018 $ 1,751  $ 4,429  $ 2,500  $ 1,333  $ 656  $ 184  $ 39  $ 10,892  Charge-offs (170) —  —  (29) —  (37) (34) (270) Recoveries 342  62  —  220  11  28  200  863  Provision 376  697  13  (141) 37  (5) (171) 806  Ending balance at September 30, 2019 $ 2,299  $ 5,188  $ 2,513  $ 1,383  $ 704  $ 170  $ 34  $ 12,291  The allowance for loan losses and the recorded investment in loans by portfolio segment and based on impairment method as of September 30, 2020 were as follows: Commercial Industrial and Agricultural Multi-family and Commercial Real Estate Construction Land Development and Farmland 1-4 Family Residential Real Estate 1-4 Family HELOC Consumer Other Total Allowance for loan losses Individually evaluated for impairment $ 764  $ —  $ —  $ —  $ —  $ —  $ —  $ 764  Acquired with credit impairment —  —  —  —  —  —  —  —  Collectively evaluated for impairment 4,248  8,247  1,955  2,289  1,485  826 20  19,070  Total $ 5,012  $ 8,247  $ 1,955  $ 2,289  $ 1,485  $ 826  $ 20  $ 19,834  Loans Individually evaluated for impairment $ 1,084  $ 2,537  $ 1,777  $ 1,687  $ 316  $ 592  $ —  $ 7,993  Acquired with credit impairment 257  1,211  787  934  14  1,330  —  4,533  Collectively evaluated for impairment 476,444  861,008  364,196  332,109  101,162  207,149 8,259  2,350,327  Total $ 477,785  $ 864,756  $ 366,760  $ 334,730  $ 101,492  $ 209,071  $ 8,259  $ 2,362,853    The allowance for loan losses and the recorded investment in loans by portfolio segment and based on impairment method as of December 31, 2019 were as follows: Commercial Industrial and Agricultural Multi-family and Commercial Real Estate Construction Land Development and Farmland 1-4 Family Residential Real Estate 1-4 Family HELOC Consumer Other Total Allowance for loan losses Individually evaluated for impairment $ 755  $ —  $ 17  $ —  $ —  $ —  $ —  $ 772  Acquired with credit impairment —  —  —  —  —  —  —  —  Collectively evaluated for impairment 1,774  5,285  2,632  1,280  624  177  34  11,806  Total $ 2,529  $ 5,285  $ 2,649  $ 1,280  $ 624  $ 177  $ 34  $ 12,578  Loans Individually evaluated for impairment $ 1,154  $ 3,439  $ 1,217  $ 1,536  $ 374  $ 28  $ —  $ 7,748  Acquired with credit impairment —  215  813  195  —  —  —  1,223  Collectively evaluated for impairment 244,361  533,191  271,842  225,798  95,854  16,827  13,180  1,401,053  Total $ 245,515  $ 536,845  $ 273,872  $ 227,529  $ 96,228  $ 16,855  $ 13,180  $ 1,410,024  Non-accrual loans by class of loan were as follows at September 30, 2020 and December 31, 2019: September 30, 2020 December 31, 2019 Commercial, Industrial and Agricultural $ 791  $ 572  Multi-family and Commercial Real Estate 1,532  1,276  Construction, Land Development and Farmland 1,100  555  1-4 Family Residential Real Estate 1,591  1,344  1-4 Family HELOC 239  296  Consumer 1,485  28  Total $ 6,738  $ 4,071  Performing non-accrual loans totaled $2,926 and $1,332 at September 30, 2020 and December 31, 2019, respectively. Individually impaired loans by class of loans were as follows at September 30, 2020: Unpaid Principal Balance Recorded Investment with no Allowance for Loan Losses Recorded Recorded Investment with Allowance for Loan Losses Recorded Total Recorded Investment Related Allowance for Loan Losses Commercial, Industrial and Agricultural $ 2,575  $ 436  $ 905  $ 1,341  $ 764  Multi-family and Commercial Real Estate 5,837  3,748  —  3,748  —  Construction, Land Development and Farmland 3,032  2,564  —  2,564  —  1-4 Family Residential Real Estate 3,322  2,621  —  2,621  —  1-4 Family HELOC 436  330  —  330  —  Consumer 3,819  1,922  —  1,922  —  Total $ 19,021  $ 11,621  $ 905  $ 12,526  $ 764  Individually impaired loans by class of loans were as follows at December 31, 2019: Unpaid Principal Balance Recorded Investment with no Allowance for Loan Losses Recorded Recorded Investment with Allowance for Loan Losses Recorded Total Recorded Investment Related Allowance for Loan Losses Commercial, Industrial and Agricultural $ 1,154  $ 5  $ 1,149  $ 1,154  $ 755  Multi-family and Commercial Real Estate 3,746  3,654  —  3,654  —  Construction, Land Development and Farmland 2,347  1,859  171  2,030  17  1-4 Family Residential Real Estate 1,852  1,731  —  1,731  —  1-4 Family HELOC 376  374  —  374  —  Consumer 31  28  —  28  —  Total $ 9,506  $ 7,651  $ 1,320  $ 8,971  $ 772  The average balances of impaired loans and the interest income recognized for the three and nine months ended September 30, 2020 and 2019 were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Impaired loans with an allowance Commercial, Industrial and Agricultural $ 947  $6 $ 2,435  $112 $ 975  $32 $ 1,384  $342 Multi-family and Commercial Real Estate —  —  —  —  —  —  —  —  Construction, Land Development and Farmland —  —  172  —  43  —  172  —  1-4 Family Residential Real Estate —  —  —  —  —  —  —  —  1-4 Family HELOC —  —  25  —  —  —  13  1  Consumer —  —  —  —  1  —  —  —  Subtotal 947  6  2,631  112  1,019  32  1,568  343  Impaired loans with no allowance Commercial, Industrial and Agricultural 594  42  672  9  356  56  537  33  Multi-family and Commercial Real Estate 4,375  63  3,474  46  4,138  278  2,838  141  Construction, Land Development and Farmland 2,949  28  1,797  21  2,471  115  2,399  168  1-4 Family Residential Real Estate 3,002  54  2,124  26  2,631  154  1,924  88  1-4 Family HELOC 331  —  296  —  367  —  148  4  Consumer 2,118  68  15  1  1,076  205  16  2  Subtotal $ 13,369  $255 $ 8,378  $103 $ 11,039  $808 $ 7,862  $ 436  Total $ 14,316  $ 261  $ 11,009  $ 215  $ 12,058  $840 $ 9,430  $ 779  The Company utilizes a risk grading system to monitor the credit quality of the Company’s commercial loan portfolio which consists of commercial, industrial and agricultural, commercial real estate and construction loans. Loans are graded on a scale of 1 to 9. Grades 1 to 5 are pass credits, grade 6 is special mention, grade 7 is substandard, grade 8 is doubtful and grade 9 is loss. A description of the risk grades are as follows:     Grade 6 - Special Mention Special mention assets have potential weaknesses that may, if not checked or corrected, weaken the asset or inadequately protect the Company’s position at some future date. These assets pose elevated risk, but their weakness does not yet justify a substandard classification. Borrowers may be experiencing adverse operating trends (declining revenues or margins) or an ill proportioned balance sheet (e.g., increasing inventory without an increase in sales, high leverage, tight liquidity). Adverse economic or market conditions, such as interest rate increases or the entry of a new competitor, may also support a special mention rating. Nonfinancial reasons for rating a credit exposure special mention include management problems, pending litigation, an ineffective loan agreement or other material structural weakness, and any other significant deviation from prudent lending practices. The special mention rating is designed to identify a specific level of risk and concern about asset quality. Although a special mention asset has a higher probability of default than a pass asset, its default is not imminent.     Grade 7 - Substandard A ‘‘substandard’’ extension of credit is inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Extensions of credit so classified should have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Loss potential, while existing in the aggregate amount of substandard credits, does not have to exist in individual extensions of credit classified substandard. Substandard assets have a high probability of payment default, or they have other well-defined weaknesses. They require more intensive supervision by Company management. Substandard assets are generally characterized by current or expected unprofitable operations, inadequate debt service coverage, inadequate liquidity, or marginal capitalization. Repayment may depend on collateral or other credit risk mitigation.      Grade 8 - Doubtful An extension of credit classified ‘‘doubtful’’ has all the weaknesses inherent in one classified substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. The possibility of loss is extremely high, but because of certain important and reasonably specific pending factors that may work to the advantage of and strengthen the credit, its classification as an estimated loss is deferred until its more exact status may be determined. Pending factors may include a proposed merger or acquisition, liquidation proceedings, capital injection, perfecting liens on additional collateral, or refinancing plans. Generally, the doubtful classification should not extend for a long period of time because in most cases the pending factors or events that warranted the doubtful classification should be resolved either positively or negatively in a reasonable period of time.     Grade 9 - Loss Extensions of credit classified ‘‘loss’’ are considered uncollectible and of such little value that their continuance as bankable assets is not warranted. This classification does not mean that the credit has absolutely no recovery or salvage value, but rather that it is not practical or desirable to defer writing off this basically worthless asset even though partial recovery may be effected in the future. Amounts classified loss should be promptly charged off. The Company will not attempt long term recoveries while the credit remains on the Company’s books. Losses should be taken in the period in which they surface as uncollectible. With loss assets, the underlying borrowers are often in bankruptcy, have formally suspended debt repayments, or have otherwise ceased normal business operations. Once an asset is classified loss, there is little prospect of collecting either its principal or interest. Loans not falling in the criteria above are considered to be pass-rated loans. Non-commercial purpose loans are initially assigned a default loan grade of 99 (Pass) and are risk graded (Grade 6, 7, or 8) according to delinquency status when applicable. Credit quality indicators by class of loan were as follows at September 30, 2020: Pass Special Mention Substandard Total Commercial, Industrial and Agricultural $ 474,199  $ 1,534  $ 2,052  $ 477,785  1-4 Family Residential Real Estate 331,930  5  2,795  334,730  1-4 Family HELOC 101,176  —  316  101,492  Multi-family and Commercial Real Estate 859,739  663  4,354  864,756  Construction, Land Development and Farmland 365,135  —  1,625  366,760  Consumer 207,016  7  2,048  209,071  Other 6,739  1,520  —  8,259  Total $ 2,345,934  $ 3,729  $ 13,190  $ 2,362,853  Credit quality indicators by class of loan were as follows at December 31, 2019: Pass Special Mention Substandard Total Commercial, Industrial and Agricultural $ 241,089  $ 2,382  $ 2,044  $ 245,515  1-4 Family Residential Real Estate 225,809  —  1,720  227,529  1-4 Family HELOC 95,678  —  550  96,228  Multi-family and Commercial Real Estate 531,055  1,519  4,271  536,845  Construction, Land Development and Farmland 272,440  —  1,432  273,872  Consumer 16,634  —  221  16,855  Other 13,180  —  —  13,180  Total $ 1,395,885  $ 3,901  $ 10,238  $ 1,410,024  None of the Company's loans had a risk rating of "Doubtful" or "Loss" as of September 30, 2020 or December 31, 2019. Past due status by class of loan was as follows at September 30, 2020: 30-59 Days Past Due 60-89 Days Past Due 90+ Days Past Due Total Past Due Current Total Loans Commercial, Industrial and Agricultural $ 219  $ —  $ 412  $ 631  $ 477,154  $ 477,785  1-4 Family Residential Real Estate 1,006  544  318  1,868  332,862  334,730  1-4 Family HELOC —  —  198  198  101,294  101,492  Multi-family and Commercial Real Estate —  —  1,023  1,023  863,733  864,756  Construction, Land Development and Farmland —  684  205  889  365,871  366,760  Consumer 389  767  617  1,773  207,298  209,071  Other —  —  —  —  8,259  8,259  Total $ 1,614  $ 1,995  $ 2,773  $ 6,382  $ 2,356,471  $ 2,362,853  Past due status by class of loan was as follows at December 31, 2019: 30-59 Days Past Due 60-89 Days Past Due 90+ Days Past Due Total Past Due Current Total Loans Commercial, Industrial and Agricultural $ 79  $ 4  $ 572  $ 655  $ 244,860  $ 245,515  1-4 Family Residential Real Estate 501  236  229  966  226,563  227,529  1-4 Family HELOC —  —  296  296  95,932  96,228  Multi-family and Commercial Real Estate 485  —  558  1,043  535,802  536,845  Construction, Land Development and Farmland 255  —  339  594  273,278  273,872  Consumer 38  26  64  128  16,727  16,855  Other —  —  —  —  13,180  13,180  Total $ 1,358  $ 266  $ 2,058  $ 3,682  $ 1,406,342  $ 1,410,024  There was one loan past due 90 days or more and still accruing interest at September 30, 2020 totaling $38. At December 31, 2019, there was one loan totaling $64 past due 90 days or more and still accruing interest. The following table presents loans by class modified as troubled debt restructurings ("TDRs") during the first nine months of 2020. There were no modifications in the three months ending September 30, 2020. There were no loans that were modified as TDRs during the three or nine months ended September 30, 2019. Number of Contracts Pre-Modification Outstanding Recorded Investments Post-Modification Outstanding Recorded Investments September 30, 2020 Commercial, Industrial and Agricultural 1  $ 150  $ 150  Multi-family and Commercial Real Estate 1  721  721  1-4 Family Residential 1  394  394  Total 3  $ 1,265  $ 1,265  The Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”), which was signed into law on March 27, 2020, and subsequent regulatory guidance provide that financial institutions may elect to account for certain loan modifications due to COVID-19 as not TDRs. The Company had applied this guidance to approve initial modifications in April and May 2020 for loans with principal balances of $530.7 million. The majority of these modifications were for a period of up to three months and contained either interest-only periods or full payment deferrals. Through September 30, 2020, further modifications were approved for $21.8 million of the loans previously modified. Additional modifications of these loans are likely to be executed in the fourth quarter of 2020. The CARES Act provides over $2.0 trillion in emergency economic relief to individuals and businesses impacted by the COVID-19 pandemic. The CARES Act authorized the Small Business Administration (“SBA”) to administer new loan programs including, but not limited to, the guarantee of loans under a new 7(a) loan program called the Paycheck Protection Program (“PPP”). Upon completion of the FABK Transaction as disclosed in Note 12, we assumed their qualified SBA lender status. The Company originated 893 loans amounting to $83 million of PPP loans in 2020 which are included in the commercial, industrial, and agricultural segment. PPP loans do not have a corresponding allowance as they are fully guaranteed by the SBA. Fees range from 1% to 5% of the loan and are deferred and amortized over the life of the loan. As PPP loans are forgiven, any deferred loan fee or cost is recognized related to each individual loan. The Company has acquired loans for which there was, at acquisition, evidence of deterioration of credit quality since origination and it was probable, at acquisition, that all contractually required payments would not be collected. The outstanding balance and carrying amount of the purchased credit impaired loans were as follows at September 30, 2020 and December 31, 2019: September 30, 2020 December 31, 2019 Commercial, Industrial and Agricultural $ 989  $ —  Multi-family and Commercial Real Estate 2,243  217  Construction, Land Development and Farmland 1,003  1,021  1-4 Family Residential Real Estate 1,211  231  1-4 Family HELOC 18  —  Consumer 2,105  —  Total outstanding balance 7,569  1,469  Less remaining purchase discount 3,036  246  Allowance for loan losses —  —  Carrying amount, net of allowance for loan losses and remaining purchase discounts $ 4,533  $ 1,223  Activity related to the accretable portion of the purchase discount on loans acquired with deteriorated credit quality is as follows for the nine months ended September 30, 2020 and 2019: 2020 2019 Balance at January 1, $ 98  $ 110  New loans purchased 870  —  Year-to-date settlements (137) (12) Balance at September 30, $ 831  $ 98  Year-to-date settlements include both loans that were charged-off as well as loans that were paid off.

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- Definition The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2196772 + Details Name: us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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- References No definition available. + Details Name: us-gaap_ReceivablesAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

v3.20.2

Leases	9 Months Ended
	Sep. 30, 2020
Leases [Abstract]
Leases	LEASES On January 1, 2020, the Company adopted ASU No. 2016-02 “Leases (Topic 842)” and all subsequent ASUs that modified Topic 842. The Company elected the prospective application approach provided by ASU 2018-11 and did not adjust prior periods for ASC 842. Leases with initial terms of less than one year are not recorded on the balance sheet. The Company’s long-term lease agreements are classified as operating leases. Certain of these leases offer the option to extend the lease term and the Company has included such extensions in its calculation of the lease liabilities to the extent the options are reasonably assured of being exercised. The lease agreements do not provide for residual value guarantees and have no restrictions or covenants that would impact dividends or require incurring additional financial obligations. The implementation of the new standard resulted in recognition of a right-of-use asset of $12.0 million and a lease liability of $11.9 million at the date of adoption, which is related to the Company’s lease of premises used in operations. The Company used a discount rate of 4.5% in determining the right-of-use asset and lease liability as of January 1, 2020. Information related to the Company's operating leases is presented below: September 30, 2020 Operating leases right of use assets $ 14,619  Operating leases liabilities $ 15,756  Weighted average remaining lease term (in years) 6.14 Weighted average discount rate 4.34  % The components of lease expense included in occupancy expenses for the three and nine months ended September 30, 2020, were as follows: Three Months Ended September 30, 2020 Nine Months Ended September 30, 2020 Operating lease cost $ 851  $ 2,333  Short-term lease cost 2  2  Variable lease cost 98 276  Total lease cost $ 951  $ 2,611  The Company does not separate lease and non-lease components and instead elects to account for them as a single lease component. Variable lease cost primarily represents variable payments such as common area maintenance, utilities, and property taxes. Lease expense for the three and nine months ended September 30, 2019, prior to the adoption of ASU 2016-02, was $669 and $2,039, respectively. A maturity analysis of operating lease liabilities and a reconciliation of undiscounted cash flows to the total operating lease liability is as follows: Lease payments due on or before September 30, 2020 September 30, 2021 $ 3,155  September 30, 2022 2,755  September 30, 2023 2,716  September 30, 2024 2,703  September 30, 2025 2,372  Thereafter 4,289  Total undiscounted cash flows 17,990  Discount on cash flows (2,234) Total lease liability $ 15,756  As of September 30, 2020, the Company entered into a five year lease with a related party that commences January 1, 2021 and has a base annual rental of $211,000, with a 2.5% per year increase. This lease may be terminated December 31, 2021 with a 90-day notice. As the lease has not yet commenced, it is not included in the lease payments due above.

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- References No definition available. + Details Name: us-gaap_LeasesAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=77888251 + Details Name: us-gaap_LesseeOperatingLeasesTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

v3.20.2

Derivatives	9 Months Ended
	Sep. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVES	DERIVATIVES The Company utilizes interest rate swap agreements as part of its asset liability management strategy to help manage its interest rate risk position. The notional amount of the interest rate swaps does not represent amounts exchanged by the parties. The amount exchanged is determined by reference to the notional amount and other terms of the individual interest rate swap agreements. Interest Rate Swaps Designated as Cash Flow Hedges Interest rate swaps with notional amounts totaling $160,000 as of September 30, 2020 were designated as cash flow hedges of certain short-term interest-bearing liabilities and subordinated debentures, which are fully effective. As such, no amount of ineffectiveness has been included in net income. Therefore, the aggregate fair value of the swaps is recorded in other assets (liabilities) with changes in fair value recorded in other comprehensive income (loss). The amount included in accumulated other comprehensive income (loss) would be reclassified to current earnings should the hedges no longer be considered effective. The Company expects the hedges to remain fully effective during the remaining terms of the swap agreements. No gains or losses were reclassified from accumulated other comprehensive income into net income during the periods presented. Summary information related to the interest rate swaps designated as cash flow hedges as of September 30, 2020, is as follows: Notional amounts $ 160,000  Weighted average pay rates 2.050  % Weighted average receive rates 0.390  % Weighted average maturity 3.35 years Unrealized losses $ 8,526  The following table reflects the cash flow hedges included in the Consolidated Balance Sheets as of September 30, 2020 and December 31, 2019, respectively: September 30, 2020 December 31, 2019 Notional Amount Fair Value Notional Amount Fair Value Included in other liabilities: Interest rate swaps related to: Subordinated debentures $ 10,000  $ (750) $ 10,000  $ (439) Short-term interest-bearing liabilities 150,000  (7,776) 100,000  (1,639) Total included in other liabilities $ 160,000  $ (8,526) $ 110,000  $ (2,078) The following table presents the net gains (losses) recorded in accumulated other comprehensive income and the Consolidated Statements of Income, net of tax, relating to the cash flow derivative instruments for the three and nine months ended September 30, 2020 and 2019, respectively: Amount of Gain (Loss) Recognized in Other Comprehensive Income (Loss) Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 Interest rate swaps-subordinate debentures $ 51  $ (42) $ (230) $ (264) Interest rate swaps-interest-bearing liabilities 324  (233) (4,532) (1,342) $ 375  $ (275) $ (4,762) $ (1,606) Fair Value Hedges Summary information related to the fair value hedges as of September 30, 2020, is as follows: Notional amounts $ 19,345  Weighted average pay rates 3.51  % Weighted average receive rates 1.21  % Weighted average maturity 8.34 years Unrealized losses $ 1,690  The following table reflects the fair value hedges included in the Consolidated Balance Sheets as of September 30, 2020 and December 31, 2019, respectively: September 30, 2020 December 31, 2019 Notional Amount Fair Value Notional Amount Fair Value Included in other liabilities: Interest rate swaps related to investments 19,345  (1,690) 19,605  (630) Total included in other liabilities $ 19,345  $ (1,690) $ 19,605  $ (630) The following table reflects the fair value hedges and the underlying hedged items included in the Consolidated Statements of Income for the three and nine months ended September 30, 2020 and 2019, respectively: Three Months Ended September 30, Nine Months Ended September 30, Item Location 2020 2019 2020 2019 Interest rate swaps - securities Interest on investment securities, nontaxable $ (118) $ (20) $ (243) $ (21) Hedged item - securities Interest on investment securities, nontaxable $ 118  $ 20  $ 243  $ 21

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- References No definition available. + Details Name: us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition The entire disclosure for derivatives and fair value of assets and liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -URI http://asc.fasb.org/topic&trid=2155941 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -URI http://asc.fasb.org/topic&trid=2229140 + Details Name: us-gaap_DerivativesAndFairValueTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

v3.20.2

Stock-based Compensation	9 Months Ended
	Sep. 30, 2020
Share-based Payment Arrangement [Abstract]
STOCK-BASED COMPENSATION	STOCK-BASED COMPENSATION In 2006, the board of directors and shareholders of the Bank (then known as "Commerce Union Bank") approved the Commerce Union Bank Stock Option Plan (the “Plan”). The Plan provided for the granting of stock options for up to 625,000 shares of Bank common stock to employees and organizers and authorized the issuance of Bank common stock upon the exercise of such options. As part of the Bank's reorganization into a holding company corporate structure in 2012, all Bank options were replaced with Commerce Union Bancshares, Inc. (now known as "Reliant Bancorp, Inc.") options with no change in terms. On March 10, 2015, the shareholders of Reliant Bancorp (then known as "Commerce Union Bancshares, Inc.") approved the Commerce Union Bancshares, Inc. Amended and Restated Stock Option Plan (the “A&R Plan”), which permits the grant of awards with respect to up to 1,250,000 shares of Reliant Bancorp common stock in the form of stock options. As part of the merger of Commerce Union Bank and Reliant Bank in 2015, all outstanding stock options of Reliant Bank were converted to stock options of Reliant Bancorp (then known as "Commerce Union Bancshares, Inc.") under the A&R Plan. Under the A&R Plan, stock option awards may be granted in the form of incentive stock options or non-statutory stock options, and are generally exercisable for up to 10 years following the date such option awards are granted. Exercise prices of incentive stock options must be equal to or greater than the fair market value of Reliant Bancorp's common stock on the grant date.      On June 18, 2015, the shareholders of Reliant Bancorp (then known as "Commerce Union Bancshares, Inc.") approved the Commerce Union Bancshares, Inc. 2015 Equity Incentive Plan, which reserves up to 900,000 shares of Reliant Bancorp common stock to be subject to awards under the plan, including awards in the form of stock options, restricted stock grants, performance-based awards, and other awards denominated or payable by reference to or based on or related to Reliant Bancorp common stock. The Company has recognized stock-based compensation expense, within salaries and employee benefits for employees, and within other non-interest expense for directors, in the consolidated statement of income as follows: Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 Stock-based compensation expense before income taxes $ 349  $ 337  $ 1,183  $ 867  Less: deferred tax benefit (91) (88) (309) (227) Reduction of net income $ 258  $ 249  $ 874  $ 640  Common Stock Options      A summary of stock option activity for the nine months ended September 30, 2020 is as follows: Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term Aggregate Intrinsic Value Outstanding at January 1, 2020 149,293 $ 18.81  6.68 years $ 553  Granted —  $ —  Exercised (6,544) $ 12.03  26 Forfeited or expired (20,007) $ 21.02  Outstanding at September 30, 2020 122,742 $ 18.81  5.95 years $ 73  Exercisable at September 30, 2020 83,042 $ 16.43  5.03 years $ 73  Shares Weighted Average Grant-Date Fair Value Non-vested options at January 1, 2020 74,600  $6.08 Granted —  $— Vested (23,400) $5.23 Forfeited (11,500) $6.37 Non-vested options at September 30, 2020 39,700  $6.56      As of September 30, 2020, there was $235 of unrecognized future compensation expense to be recognized related to stock options. The cost is expected to be recognized over a weighted-average period of 3.08 years. Restricted Stock and Restricted Stock Unit Awards The following table shows the activity related to non-vested restricted stock and restricted stock unit awards for the nine months ended September 30, 2020: Restricted Stock Units Restricted Stock Underlying Shares Weighted Average Grant-Date Fair Value Shares Weighted Average Grant-Date Fair Value Non-vested units/shares at January 1, 2020 47,750  $ 23.30  90,960  $ 25.31  Granted 102,400  14.02  —  —  Vested (12,500) 22.57  (48,550) 23.99  Forfeited (2,000) 10.25  —  Non-vested units/shares at September 30, 2020 135,650  $ 16.55  42,410  $ 26.82  As of September 30, 2020, there was $2,096 of unrecognized compensation cost related to non-vested restricted stock and restricted stock unit awards. The cost is expected to be recognized over a weighted-average period of 2.11 years. The total fair value of shares vested during the nine months ended September 30, 2020 was $970.

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- Definition The entire disclosure for shareholders' equity and share-based payment arrangement. Includes, but is not limited to, disclosure of policy and terms of share-based payment arrangement, deferred compensation arrangement, and employee stock purchase plan (ESPP). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI http://asc.fasb.org/topic&trid=2228938 + Details Name: us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

v3.20.2

Regulatory Capital Requirements	9 Months Ended
	Sep. 30, 2020
Banking and Thrift, Other Disclosures [Abstract]
REGULATORY CAPITAL REQUIREMENTS	REGULATORY CAPITAL REQUIREMENTS The Company and the Bank are subject to regulatory capital requirements administered by the federal and state banking agencies. Capital adequacy guidelines and, additionally for banks, prompt corrective action regulations, involve quantitative measures of assets, liabilities, and certain off-balance-sheet items calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by regulators. Failure to meet capital requirements can initiate regulatory action or affect the amount of dividends the Company and the Bank may distribute. Management believes that as of September 30, 2020, the Company and the Bank met all capital adequacy requirements to which they were subject. Capital amounts and ratios for Reliant Bancorp and the Bank (required) are presented below as of September 30, 2020 and December 31, 2019. Actual Regulatory Capital Minimum Required Capital Including Capital Conservation Buffer To Be Well Capitalized Under Prompt Corrective Action Provisions Amount Ratio Amount Ratio Amount Ratio September 30, 2020 Reliant Bancorp Tier I leverage $ 253,534  8.72  % $ 116,300  4.00  % $ 145,375  5.00  % Common equity tier I 241,786  9.77  % 173,235  7.00  % 160,861  6.50  % Tier I risk-based capital 253,534  10.25  % 210,248  8.50  % 197,880  8.00  % Total risk-based capital 332,434  13.44  % 259,714  10.50  % 247,347  10.00  % Bank Tier I leverage $ 304,376  10.48  % $ 116,174  4.00  % $ 145,218  5.00  % Common equity tier I 304,376  12.33  % 172,801  7.00  % 160,458  6.50  % Tier I risk-based capital 304,376  12.33  % 209,829  8.50  % 197,486  8.00  % Total risk-based capital 324,635  13.15  % 259,214  10.50  % 246,871  10.00  % December 31, 2019 Reliant Bancorp Tier I leverage $ 176,748  9.74  % $ 72,586  4.00  % $ 90,733  5.00  % Common equity tier I 165,063  10.55  % 109,520  7.00  % 101,698  6.50  % Tier I risk-based capital 176,748  11.30  % 132,952  8.50  % 125,131  8.00  % Total risk-based capital 249,751  15.97  % 164,207  10.50  % 156,388  10.00  % Bank Tier I leverage $ 186,734  10.30  % $ 72,518  4.00  % $ 90,648  5.00  % Common equity tier I 186,734  11.95  % 109,384  7.00  % 101,571  6.50  % Tier I risk-based capital 186,734  11.95  % 132,823  8.50  % 125,010  8.00  % Total risk-based capital 199,737  12.79  % 163,975  10.50  % 156,167  10.00  %

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- Definition The entire disclosure for regulatory capital requirement for depository and lending institutions. Institutions include, but not are not limited to, finance company, insured depository institution, bank holding company, savings and loan association holding company, bank and savings institution not federally insured, mortgage company, foreign financial institution and credit union. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1F -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958575-112826 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958569-112826 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1D -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958573-112826 + Details Name: us-gaap_RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

v3.20.2

Earnings Per Share	9 Months Ended
	Sep. 30, 2020
Earnings Per Share [Abstract]
EARNINGS PER SHARE	EARNINGS PER SHARE The following is a summary of the components comprising basic and diluted earnings per common share of stock ("EPS"): Three Months Ended Nine Months Ended September 30, September 30, 2020 2019 2020 2019 Basic EPS Computation Net income attributable to common shareholders $ 11,531  $ 4,000  $ 19,186  $ 12,063  Weighted average common shares outstanding 16,587,274  11,104,918  15,053,087  11,247,921  Basic earnings per common share $ 0.70  $ 0.36  $ 1.27  $ 1.07  Diluted EPS Computation Net income attributable to common shareholders $ 11,531  $ 4,000  $ 19,186  $ 12,063  Weighted average common shares outstanding 16,587,274  11,104,918  15,053,087  11,247,921  Dilutive effect of stock options, restricted stock shares and units, and employee stock purchase plan 62,399  72,449  67,616  66,445  Adjusted weighted average common shares outstanding 16,649,673  11,177,367  15,120,703  11,314,366  Diluted earnings per common share $ 0.69  $ 0.36  $ 1.27  $ 1.07

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- References No definition available. + Details Name: us-gaap_EarningsPerShareAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3630-109257 + Details Name: us-gaap_EarningsPerShareTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

v3.20.2

Fair Values of Assets and Liabilities	9 Months Ended
	Sep. 30, 2020
Fair Value Disclosures [Abstract]
FAIR VALUES OF ASSETS AND LIABILITIES	FAIR VALUES OF ASSETS AND LIABILITIES   Financial accounting standards relating to fair value measurements establish a framework for measuring fair value. That framework provides a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are described below: Level 1    Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities in active markets that the Company has the ability to access. Level 2    Inputs to the valuation methodology include: •Quoted prices for similar assets or liabilities in active markets; •Quoted prices for identical or similar assets or liabilities in inactive markets; •Inputs other than quoted prices that are observable for the asset or liability; and •Inputs that are derived principally from or corroborated by the observable market data by correlation or other means. If the asset or liability has a specified (contractual) term, the Level 2 input must be observable for substantially the full term of the asset or liability. Level 3    Inputs to the valuation methodology are unobservable and reflect an entity’s own assumptions about the assumptions that market participants would use in pricing the assets or liabilities. An asset’s or liability’s fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques should maximize the use of observable inputs and minimize the use of unobservable inputs. Following is a description of the valuation methodologies used for assets and liabilities measured at fair value on a recurring basis: Securities available for sale: The fair values of securities available for sale are determined by obtaining quoted prices on nationally recognized securities exchanges (Level 1 inputs) or matrix pricing, which is a mathematical technique widely used in the industry to value debt securities without relying exclusively on quoted prices for the specific securities but rather by relying on the securities’ relationship to other benchmark quoted securities (Level 2 inputs). The Company obtains fair value measurements for securities available for sale from an independent pricing service. The fair value measurements consider observable data that may include benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers, cash flows and reference data, including market research publications, among other things. Interest rate swaps: The fair values of interest rate swaps and fair value hedges are determined based on discounted future cash flows. Certain assets and liabilities are measured at fair value on a nonrecurring basis; that is, the instruments are not measured at fair value on an ongoing basis, but are subject to fair value adjustments in certain circumstances (for example, when there is evidence of impairment). Assets and liabilities measured at fair value on a nonrecurring basis include the following: Impaired Loans: The fair value of an impaired loan with specific allocations of the allowance for loan losses is generally based on the present value of expected payments using the loan’s effective rate as the discount rate or recent real estate appraisals. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are routinely made in the appraisal process by the appraisers to adjust for differences between the comparable sales and income data available. Such adjustments are typically significant and result in a Level 3 classification of the inputs for determining fair value. Other Real Estate: The fair value of other real estate is generally based on recent real estate appraisals less estimated disposition cost. These appraisals may use a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are routinely made in the appraisal process by the appraisers to adjust for differences between the comparable sales and income data available. Such adjustments are typically significant and result in Level 3 classification of the inputs for determining fair value. The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while the Company’s valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different estimate of fair value at the reporting date. Fair value estimates involve uncertainties and matters of significant judgment regarding interest rates, credit risk, prepayments, and other factors, especially in the absence of broad markets for particular items. Changes in assumptions or in market conditions could significantly affect the estimates. The following table sets forth the Company’s major categories of assets and liabilities measured at fair value on a recurring basis, by level within the fair value hierarchy, as of September 30, 2020 and December 31, 2019: Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) September 30, 2020 Assets U. S. Treasury and other U. S. government agencies $ 12,117  $ —  $ 12,117  $ —  State and municipal 190,623  —  190,623  —  Corporate bonds 15,809  —  15,809  —  Mortgage backed securities 40,376  —  40,376  —  Asset backed securities 14,968  —  14,968  —  Liabilities Derivative liabilities $ 10,216  $ —  $ 10,216  $ —  December 31, 2019 Assets U. S. Treasury and other U. S. government agencies $ 59  $ —  $ 59  $ —  State and municipal 196,660  —  196,660  —  Corporate bonds 7,845  —  7,845  —  Mortgage backed securities 37,761  —  37,761  —  Asset backed securities 17,968  —  17,968  —  Derivative assets 688  —  688  —  Liabilities Derivative liabilities $ 3,396  $ —  $ 3,396  $ —  The following table sets forth the Company’s major categories of assets and liabilities measured at fair value on a nonrecurring basis, by level within the fair value hierarchy, as of September 30, 2020 and December 31, 2019: Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) September 30, 2020         Assets         Impaired loans $ 141  $ —  $ —  $ 141  Other real estate 1,326  —  —  1,326  Other repossessions 1,603  —  —  1,603  December 31, 2019         Assets         Impaired loans $ 553  $ —  $ —  $ 553  Other real estate 750 —  —  750  Other repossessions — —  —  —  The following table presents additional quantitative information about assets measured at fair value on a nonrecurring basis and for which we have utilized Level 3 inputs to determine fair value at September 30, 2020 and December 31, 2019: Valuation Techniques (1) Significant Unobservable Inputs Range (Weighted Average) Impaired loans Appraisal Estimated costs to sell 10% Other real estate Appraisal Estimated costs to sell 10% Other repossessions Third-party guidelines Estimated costs to sell 10% (1)The fair value is generally determined through independent appraisals of the underlying collateral, which may include Level 3 inputs that are not identifiable, or by using the discounted cash flow method if the loan is not collateral dependent. Estimated cash flows change and appraised values of the assets or collateral underlying the loans will be sensitive to changes. Carrying amounts and estimated fair values of financial instruments not reported at fair value at September 30, 2020 and December 31, 2019 were as follows: September 30, 2020 Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets Cash and due from banks $ 14,050  $ 14,050  $ 14,050  $ —  $ —  Federal funds sold 12,273  12,273  —  12,273  —  Loans, net 2,338,064  2,336,300  —  —  2,336,300  Mortgage loans held for sale 99,587  99,587  —  99,587  —  Accrued interest receivable 14,615  14,615  —  14,615  —  Restricted equity securities 17,367  17,367  —  17,367  —  Financial liabilities Deposits $ 2,565,502  $ 2,571,305  $ —  $ —  $ 2,571,305  Accrued interest payable 3,744  3,744  —  3,744  —  Subordinate debentures 70,389  69,237  —  —  69,237  Federal Home Loan Bank advances 40,555  40,887  —  —  40,887  December 31, 2019 Financial assets Cash and due from banks $ 7,953  $ 7,953  $ 7,953  $ —  $ —  Federal funds sold 52  52  —  52  —  Loans, net 1,397,374  1,383,719  —  —  1,383,719  Mortgage loans held for sale 37,476  38,379  —  38,379  —  Accrued interest receivable 7,188  7,188  —  7,188  —  Restricted equity securities 11,279  11,279  —  11,279  —  Financial liabilities Deposits $ 1,584,453  $ 1,582,781  $ —  $ —  $ 1,582,781  Accrued interest payable 2,022  2,022  —  2,022  —  Subordinate debentures 70,883  71,454  —  —  71,454  Federal Home Loan Bank advances 10,737  10,755  —  —  10,755  The methods and assumptions used to estimate fair value are described as follows: Carrying amount is the estimated fair value for cash and cash equivalents, accrued interest receivable and payable, restricted equity securities, federal funds sold or purchased, demand deposits, and variable rate loans or deposits that re-price frequently and fully. For fixed rate loans or deposits and for variable rate loans or deposits with infrequent re-pricing or re-pricing limits, fair value is based on discounted cash flows using current market rates applied to the estimated life and credit risk. Fair value of debt is based on discounted cash flows using current rates for similar financing.

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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details Name: us-gaap_FairValueDisclosuresTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

v3.20.2

Segment Reporting	9 Months Ended
	Sep. 30, 2020
Segment Reporting [Abstract]
SEGMENT REPORTING	SEGMENT REPORTINGThe Company has two reportable business segments: commercial banking and residential mortgage banking. Segment information is derived from the internal reporting system utilized by management. Revenues and expenses for segments reflect those which can be specifically identified and have been assigned based on internally developed allocation methods. Financial results have been presented, to the extent practicable, as if each segment operated on a stand-alone basis. Commercial Banking provides deposit and lending services to consumer and business customers within our primary geographic markets. Our customers are serviced through branch locations, ATMs, online banking, and mobile banking. Residential Mortgage Banking originates traditional first lien residential mortgage loans and first lien home equity lines of credit throughout the United States. The traditional first lien residential mortgage loans are typically underwritten to government agency standards and sold to third-party secondary market mortgage investors. The home equity lines of credit are typically sold to participating banks or other investor groups and are underwritten to their standards. During the second quarter of 2019, RMV began acquiring loans from approved correspondent lenders and reselling them in the secondary market. These loans are not government agency-qualified loans and are of higher risk, such as jumbo loans or senior position home equity lines of credit. The following presents summarized results of operations for the Company’s business segments for the periods indicated: Three Months Ended September 30, 2020 Commercial Banking Residential Mortgage Banking Elimination Entries Consolidated Net interest income $ 29,729  $ 808  $ —  $ 30,537  Provision for loan losses 1,500  —  —  1,500  Noninterest income 2,218  3,797  (14) 6,001  Noninterest expense (excluding merger expense) 16,065  4,190  —  20,255  Merger expense 78  —  —  78  Income tax expense (benefit) 2,773  27  —  2,800  Net income (loss) 11,531  388  (14) 11,905  Noncontrolling interest in net income of subsidiary —  (388) 14  (374) Net income attributable to common shareholders $ 11,531  $ —  $ —  $ 11,531    Three Months Ended September 30, 2019   Commercial Banking Residential Mortgage Banking Elimination Entries Consolidated Net interest income $ 13,910  $ 154  $ —  $ 14,064  Provision for loan losses 606  —  —  606  Noninterest income 1,375  1,377  8  2,760  Noninterest expense (excluding merger expense) 9,726  3,022  —  12,748  Merger expense 299  —  —  299  Income tax expense (benefit) 654  (97) —  557  Net income (loss) 4,000  (1,394) 8  2,614  Noncontrolling interest in net loss of subsidiary —  1,394  (8) 1,386  Net income attributable to common shareholders $ 4,000  $ —  $ —  $ 4,000  Nine Months Ended September 30, 2020 Commercial Banking Residential Mortgage Banking Elimination Entries Consolidated Net interest income $ 75,933  $ 1,677  $ —  $ 77,610  Provision for loan losses 7,400  —  —  7,400  Noninterest income 6,102  7,601  3  13,706  Noninterest expense (excluding merger expense) 44,961  10,340  —  55,301  Merger expense 6,895  —  —  6,895  Income tax expense (benefit) 3,593  (69) —  3,524  Net income (loss) 19,186  (993) 3  18,196  Noncontrolling interest in net loss of subsidiary —  993  (3) 990  Net income attributable to common shareholders $ 19,186  $ —  $ —  $ 19,186  Nine Months Ended September 30, 2019 Commercial Banking Residential Mortgage Banking Elimination Entries Consolidated Net interest income $ 40,986  $ 352  $ —  $ 41,338  Provision for loan losses 806  —  —  806  Noninterest income 4,226  3,187  (17) 7,396  Noninterest expense (excluding merger expense) 30,300  8,317  —  38,617  Merger expense 302  —  —  302  Income tax expense (benefit) 1,741  (311) —  1,430  Net income (loss) 12,063  (4,467) (17) 7,579  Noncontrolling interest in net loss of subsidiary —  4,467  17  4,484  Net income attributable to common shareholders $ 12,063  $ —  $ —  $ 12,063

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8924-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8981-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8721-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8844-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8657-108599 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8721-108599 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details Name: us-gaap_SegmentReportingDisclosureTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

v3.20.2

Income Taxes	9 Months Ended
	Sep. 30, 2020
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXESIncome tax expense for the three and nine months ended September 30, 2020 totaled $2,800 and $3,524, respectively, compared to $557 and $1,430, respectively, for the three and nine months ended September 30, 2019. The effective tax rate for the three and nine months ended September 30, 2020 was 19.0% and 16.2%, respectively, compared to 17.6% and 15.9%, respectively, for the three and nine months ended September 30, 2019.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32857-109319 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 11.C) -URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330215-122817 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 17 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32809-109319 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I.5.Q1) -URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32705-109319 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 270 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6424409&loc=d3e44925-109338 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -URI http://asc.fasb.org/topic&trid=2144680 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331 + Details Name: us-gaap_IncomeTaxDisclosureTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

v3.20.2

Business Combinations	9 Months Ended
	Sep. 30, 2020
Business Combinations [Abstract]
BUSINESS COMBINATIONS	BUSINESS COMBINATIONS Tennessee Community Bank Holdings, Inc. Effective January 1, 2020, Reliant Bancorp completed the acquisition of TCB Holdings pursuant to the Agreement and Plan of Merger, dated September 16, 2019 (the “TCB Holdings Agreement”), by and among Reliant Bancorp, TCB Holdings, and Community Bank & Trust, a Tennessee-chartered commercial bank and wholly owned subsidiary of TCB Holdings (“CBT”). On the terms and subject to the conditions set forth in the TCB Holdings Agreement, TCB Holdings merged with and into Reliant Bancorp (the “TCB Holdings Transaction”), with Reliant Bancorp as the surviving corporation. Immediately following the TCB Holdings Transaction, CBT merged with and into the Bank, with the Bank continuing as the surviving banking corporation. Pursuant to the TCB Holdings Agreement, at the effective time of the TCB Holdings Transaction, each outstanding share of TCB Holdings common stock, par value $1.00 per share (other than certain excluded shares), was converted into and canceled in exchange for the right to receive (i) $17.13 in cash, without interest, and (ii) 0.769 shares of the Reliant Bancorp’s common stock, par value $1.00 per share (“Reliant Bancorp Common Stock”). The aggregate consideration payable by Reliant Bancorp in respect of shares of TCB Holdings common stock as consideration for the TCB Holdings Transaction was 811,210 shares of Reliant Bancorp Common Stock and approximately $18,073 in cash. Reliant Bancorp did not issue fractional shares of Reliant Bancorp Common Stock in connection with the TCB Holdings Transaction, but paid cash in lieu of fractional shares based on the volume weighted average closing price per share of the Reliant Bancorp Common Stock on The Nasdaq Capital Market for the 10 consecutive trading days ending on and including December 30, 2019 (calculated as $22.36). At the effective time of the TCB Holdings Transaction, each outstanding option to purchase TCB Holdings common stock was canceled in exchange for a cash payment in an amount equal to the product of (i) $34.25 minus the per share exercise price of the option multiplied by (ii) the number of shares of TCB Holdings common stock subject to the option (to the extent not previously exercised). Reliant Bancorp paid aggregate consideration to holders of unexercised options of approximately $430. All shares of Reliant Bancorp’s common stock outstanding immediately prior to the TCB Holdings Transaction were unaffected by the TCB Holdings Transaction. The following table details the financial impact of the TCB Holdings Transaction, including the calculation of the purchase price, the allocation of the purchase price to the fair values of net assets assumed and goodwill recognized: Calculation of Purchase Price Shares of Tennessee Community Bank Holdings, Inc. common stock outstanding as of January 1, 2020 1,055,041  Exchange ratio for Reliant Bancorp, Inc. common stock 0.769  Reliant Bancorp, Inc. common stock shares issued 811,210  Reliant Bancorp, Inc. share price at January 1, 2020 $ 22.24  Estimated value of Reliant Bancorp, Inc. shares issued 18,041 Cash settlement for Tennessee Community Bank Holdings, Inc. common stock ($17.13 per share) 18,073  Cash settlement for Tennessee Community Bank Holdings, Inc.'s 26,450 outstanding stock options ($34.25 settlement price less weighted average exercise price of $18.00) 430  Cash settlement for Reliant Bancorp, Inc. fractional shares ($22.36 per pro rata fractional share) 3  Estimated fair value of Tennessee Community Bank Holdings, Inc. $ 36,547  Allocation of Purchase Price Total consideration above $ 36,547  Fair value of assets acquired and liabilities assumed Cash and cash equivalents 11,026  Investment securities available for sale 56,336  Loans, net of unearned income 171,445  Accrued interest receivable 948  Premises and equipment 6,401  Cash surrender value of life insurance contracts 5,629  Restricted equity securities 909  Core deposit intangible 3,617  Other assets 833  Deposits (210,538) Deferred tax liability (337) Borrowings (58) FHLB advances (13,102) Other liabilities (3,682) Total fair value of net assets acquired 29,427  Goodwill $ 7,120  CBT was a Tennessee-based full-service community bank with operations in Ashland City, Kingston Springs, Pegram, Pleasant View, and Springfield, Tennessee. These communities lie on the northwest perimeter of Nashville, Tennessee. First Advantage Bancorp Effective April 1, 2020, Reliant Bancorp completed the acquisition of FABK pursuant to the Agreement and Plan of Merger, dated October 22, 2019 (the “FABK Agreement”), by and among Reliant Bancorp, FABK, and PG Merger Sub, Inc., a Tennessee corporation and wholly owned subsidiary of Reliant Bancorp ("Merger Sub"). On the terms and subject to the conditions set forth in the FABK Agreement, Merger Sub merged with and into FABK (the "FABK Transaction"), with FABK as the surviving corporation, followed immediately by the merger of FABK with and into Reliant Bancorp, with Reliant Bancorp as the surviving corporation. Immediately following the merger of FABK into Reliant Bancorp, First Advantage Bank, a Tennessee-chartered commercial bank and wholly owned subsidiary of FABK ("FAB"), merged with and into the Bank, with the Bank continuing as the surviving banking corporation. Pursuant to the FABK Agreement, at the effective time of the FABK Transaction, each outstanding share of FABK common stock, par value $0.01 per share (the “FABK Common Stock”), other than certain excluded shares, was converted into the right to receive (i) 1.17 shares of Reliant Bancorp Common Stock and (ii) $3.00 in cash, without interest. In lieu of the issuance of fractional shares of Reliant Bancorp Common Stock, Reliant Bancorp agreed to pay cash in lieu of fractional shares based on the volume-weighted average closing price per share of Reliant Bancorp Common Stock on The Nasdaq Capital Market for the 10 consecutive trading days ending on and including March 30, 2020 (calculated as $11.74). Based on the April 1, 2020 opening price for Reliant Bancorp Common Stock of $11.27 per share and 3,935,165 shares of FABK Common Stock outstanding on April 1, 2020, the consideration for the FABK Transaction was approximately $64,094, in the aggregate, or $16.28 per share of FABK Common Stock. The following table details the financial impact of the FABK Transaction, including the calculation of the purchase price, the allocation of the purchase price to the fair values of net assets assumed and goodwill recognized: Calculation of Purchase Price Shares of First Advantage Bancorp common stock outstanding as of April 1, 2020 3,935,165  Conversion of restricted stock units to shares of common stock of First Advantage Bancorp as of April 1, 2020 2,000  Total First Advantage Bancorp common stock outstanding as of April 1, 2020 3,937,165  Exchange ratio for Reliant Bancorp, Inc. common stock 1.17 Reliant Bancorp, Inc. common stock shares issued 4,606,483  Remove fractional shares (64) Reliant Bancorp, Inc. common stock shares issued 4,606,419 Reliant Bancorp, Inc. share price at April 1, 2020 $ 11.27  Estimated value of Reliant Bancorp, Inc. shares issued 51,914  Cash settlement for Reliant Bancorp, Inc. fractional shares ($11.74 per pro rata fractional share) 1 Cash settlement for First Advantage Bancorp common stock ($3.00 per share) 11,805 Cash settlement for First Advantage Bancorp restricted stock units ($3.00 per share) 6 Cash settlement for First Advantage Bancorp's 34,800 outstanding stock options ($30.00 settlement price less weighted average exercise price of $19.44) 368 Estimated fair value of First Advantage Bancorp $ 64,094  Allocation of Purchase Price Total consideration above $ 64,094  Fair value of assets acquired and liabilities assumed Cash and cash equivalents 11,159  Investment securities available for sale 35,970  Loans, net of unearned income 622,423  Mortgage loans held for sale, net 5,878  Premises and equipment 7,905  Deferred tax asset 6,024  Cash surrender value of life insurance contracts 14,776  Other real estate and repossessed assets 1,259  Core deposit intangible 2,280  Operating lease right-of-use assets 6,536  Other assets 10,934  Deposits (608,690) Borrowings (35,962) Operating lease liabilities (6,536) Other liabilities (10,606) Total fair value of net assets acquired 63,350  Goodwill $ 744  FAB was a Tennessee-based full-service community bank headquartered in Clarksville, Tennessee. FAB operated branch offices in Montgomery, Davidson and Williamson counties, Tennessee and operated a loan production office in Knoxville, Tennessee primarily originating manufactured housing loans. Supplemental Pro Forma Combined Condensed Statements of Income Pro forma data for the three and nine months ended September 30, 2020 and 2019 in the table below presents information as if the TCB Holdings Transaction and FABK Transaction occurred on January 1, 2019. These results combine the historical results of TCB Holdings and FABK into the Company's consolidated statement of income and, while certain adjustments were made for the estimated impact of certain fair value adjustments, they are not indicative of what would have occurred had the acquisitions taken place on the indicated date nor are they intended to represent or be indicative of future results of operations. In particular, no adjustments have been made to eliminate the amount of TCB Holdings' or FABK's provision for credit losses for the first three and nine months of 2019 that may not have been necessary had the acquired loans been recorded at fair value as of the beginning of 2019. Additionally, these financials were not adjusted for non-recurring expenses, such as merger-related charges incurred by either the Company, TCB Holdings or FABK. The Company expects to achieve operating cost savings and other business synergies as a result of the acquisitions which are also not reflected in the pro forma amounts. Three Months Ended Nine Months Ended September 30, September 30, 2020 2019 2020 2019 Revenue(1) $ 35,881  $ 29,478  $ 106,771  $ 86,217  Net interest income $ 29,880  $ 25,232  $ 85,741  $ 74,835  Net income attributable to common shareholders $ 11,117  $ 9,182  $ 17,715  $ 28,545  (1) Net interest income plus noninterest income

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v3.20.2

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations	Nature of Operations Reliant Bancorp, Inc. is a Tennessee corporation and the holding company for and the sole shareholder of Reliant Bank (the "Bank"), collectively, "the Company". Reliant Bancorp is registered as a financial holding company under the Bank Holding Company Act of 1956, as amended ("Bank Holding Company Act"). Reliant Bank is a commercial bank chartered under Tennessee law and a member of the Federal Reserve System (the "Federal Reserve"). The Bank provides a full range of traditional banking products and services to business and consumer clients throughout Middle Tennessee. Reliant Risk Management, Inc., a wholly-owned insurance captive subsidiary of Reliant Bancorp, that began operations on June 1, 2020, is a Tennessee-based captive insurance company which insures Reliant Bancorp and the Bank against certain risks unique to their operations and for which insurance may not be currently available or economically feasible in today's insurance marketplace. Reliant Risk Management, Inc. pools resources with several other similar insurance company subsidiaries of financial institutions to spread a limited amount of risk among themselves. Reliant Risk Management, Inc. is subject to regulations of the State of Tennessee and undergoes periodic examinations by the Tennessee Department of Commerce and Insurance.
Basis of Presentation	Basis of Presentation The accompanying unaudited consolidated financial statements have been prepared in accordance with instructions to Quarterly Report on Form 10-Q and therefore do not include all information and footnotes necessary for a fair presentation of financial position, results of operations, and cash flows in conformity with accounting principles generally accepted in the United States of America ("U.S. GAAP"). All adjustments consisting of normally recurring accruals that, in the opinion of management, are necessary for a fair presentation of the financial position and results of operations for the periods covered by the report have been included.  The accompanying unaudited consolidated financial statements should be read in conjunction with the Company's consolidated financial statements and related notes appearing in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019. The consolidated financial statements as of and for the periods presented include Reliant Bancorp, Inc., its wholly-owned direct and indirect subsidiaries and Reliant Mortgage Ventures, LLC ("RMV"), of which the Bank controls 51% of the governance rights. As described in Note 12 to these unaudited consolidated financial statements, Reliant Bancorp, Inc. and TCB Holdings merged effective on January 1, 2020, and Reliant Bancorp, Inc. and FABK merged effective April 1, 2020.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions based on available information. These estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to determination of the allowance for loan losses, the valuation of other real estate, the valuation of debt and equity securities, the valuation of deferred tax assets and fair values of financial instruments. The consolidated financial statements as of September 30, 2020, and for the three and nine months ended September 30, 2020 and 2019, included herein have not been audited. The accounting and reporting policies of the Company conform to U.S. GAAP and Article 8 of Regulation S-X. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission, although the Company believes that the disclosures made are adequate to make the information not misleading. The accompanying consolidated financial statements reflect all adjustments which, in the opinion of management, are necessary to present a fair statement of the results for the interim periods presented. Such adjustments are of a normal recurring nature. The Company evaluates subsequent events through the date of filing. Certain prior period amounts have been reclassified to conform to the current period presentation. The results for the three and nine months ended September 30, 2020 are not necessarily indicative of the results that may be expected for the year ending December 31, 2020.
Recently Adopted Accounting Pronouncements and Newly Issued not yet Effective Accounting Standards	Recently Adopted Accounting Pronouncements Information about certain issued accounting standards updates is presented below. Also refer to Note 1 - Summary of Significant Accounting Policies, “Recent Authoritative Accounting Guidance” in the Company's Annual Report on Form 10-K for the year ended December 31, 2019 for additional information related to previously issued accounting standards updates. ASU 2016-02, “Leases (Topic 842).” ASU 2016-02 requires lessees to recognize a lease liability, which is a lessee's obligation to make lease payments arising from a lease, measured on a discounted basis, and a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. ASU 2016-02 went into effect for the Company on January 1, 2020 and the Company elected the prospective application approach provided by ASU 2018-11 and did not adjust prior periods for ASC 842. The Company also elected certain practical expedients within the standard and consistent with such elections did not reassess whether any expired or existing contracts are or contain leases, did not reassess the lease classification for any expired or existing leases, and did not reassess any initial direct costs for existing leases. The effect of implementing this pronouncement resulted in right to use assets of $11,973 and a similar corresponding liability, as of January 1, 2020. ASU 2017-04, “Intangibles - Goodwill and Other (Topic 350) - Simplifying the Test for Goodwill Impairment.” ASU 2017-04 eliminates Step 2 from the goodwill impairment test which required entities to compute the implied fair value of goodwill. Under ASU 2017-04, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. ASU 2017-04 was early adopted as of January 1, 2020 and did not have a significant impact on the Company's consolidated financial statements as it simplifies the test of impairment of goodwill. ASU 2020-04, "Reference Rate Reform (Topic 848) - Facilitation of the Effects of Reference Rate Reform on Financial Reporting." In March 2020, the FASB issued Topic 848 amendments to provide optional guidance for a limited period of time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. It provides optional expedients and exceptions for applying generally accepted accounting principles to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The amendments in this update are effective for all entities as of March 12, 2020 through December 31, 2022. The Company has evaluated the effect of the pronouncement on the consolidated financial statements, noting no significant impact. Newly Issued not yet Effective Accounting Standards ASU 2016-13, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” ASU 2016-13 requires the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts and requires enhanced disclosures related to the significant estimates and judgments used in estimating credit losses, as well as the credit quality and underwriting standards of an organization’s portfolio. In addition, ASU 2016-13 amends the accounting for credit losses on available for sale debt securities and purchased financial assets with credit deterioration. ASU 2016-13 is expected to be effective for the Company on January 1, 2023. We are currently evaluating the potential impact of ASU 2016-13 on the Company's financial statements by developing an implementation plan to include assessment of processes, portfolio segmentation, model development, system requirements and the identification of data and resource needs, among other things. The adoption of ASU 2016-13 could result in an increase in the allowance for loan losses as a result of changing from an “incurred loss” model, which encompasses allowances for current known and inherent losses within the portfolio, to an “expected loss” model, which encompasses allowances for losses expected to be incurred over the life of the portfolio. Furthermore, ASU 2016-13 will necessitate that we establish an allowance for expected credit losses for certain debt securities and other financial assets. In April 2019, the FASB issued ASU No. 2019-04, Codification Improvements to Financial Instruments - Credit Losses (ASC 326), Derivatives and Hedging (ASC 815), and Financial Instruments (ASC 825). The amendments in this ASU improve the codification by eliminating inconsistencies and providing clarifications. The amended guidance in this ASU related to credit losses is expected to be effective for the Company in conjunction with the adoption of the standard on January 1, 2023. The Company is currently evaluating the impact of these ASUs on the Company’s consolidated financial statements. While we are currently unable to reasonably estimate the impact of adopting these ASUs, we expect that the impact of adoption will be significantly influenced by the composition, characteristics and quality of the Company's loan and securities portfolios as well as the prevailing economic conditions and forecasts as of the adoption date.

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v3.20.2

Securities (Tables)	9 Months Ended
	Sep. 30, 2020
Investments, Debt and Equity Securities [Abstract]
Available-for-Sale Securities	The amortized cost and fair value of available for sale securities and the related gross unrealized gains and losses recognized in accumulated other comprehensive income at September 30, 2020 and December 31, 2019 were as follows: September 30, 2020 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value U. S. Treasury and other U. S. government agencies $ 12,117  $ 1  $ (1) $ 12,117  State and municipal 175,976  14,717  (70) 190,623  Corporate bonds 15,750  167  (108) 15,809  Mortgage-backed securities 41,240  348  (1,212) 40,376  Asset-backed securities 15,199  —  (231) 14,968 Total $ 260,282  $ 15,233  $ (1,622) $ 273,893  December 31, 2019 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value U. S. Treasury and other U. S. government agencies $ 59  $ —  $ —  $ 59  State and municipal 186,283  10,413  (36) 196,660  Corporate bonds 7,880  97  (132) 7,845  Mortgage-backed securities 38,126  296  (661) 37,761  Asset-backed securities 18,374  —  (406) 17,968  Total $ 250,722  $ 10,806  $ (1,235) $ 260,293  Results from sales of securities were as follows: Nine months ended September 30, 2020 September 30, 2019 Proceeds $ 103,901  $ 52,434  Gross gains 810  475  Gross losses (483) (169)
Fair Value of Available for Sale Maturities by Contractual Maturity	Amortized Cost Estimated Fair Value Due within one year $ 12,567  $ 12,565  Due in one to five years 2,175  2,186  Due in five to ten years 17,222  17,965  Due after ten years 171,879  185,833  Mortgage-backed securities 41,240  40,376  Asset-backed securities 15,199  14,968  Total $ 260,282  $ 273,893
Securities in Unrealized Loss Position	The following table shows available for sale securities with unrealized losses and their estimated fair value aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position as of September 30, 2020 and December 31, 2019, respectively: Less than 12 months 12 months or more Total Estimated Fair Value Unrealized Loss Estimated Fair Value Unrealized Loss Estimated Fair Value Unrealized Loss September 30, 2020 U. S. Treasury and other U. S. government agencies $ 12,066  $ 1  $ —  $ —  $ 12,066  $ 1  State and municipal 7,319  70  —  —  7,319  70  Corporate bonds 9,142  107  500  1  9,642  108  Mortgage-backed securities 6,613  282  20,982  930  27,595  1,212  Asset-backed securities 790  1  14,092  230  14,882  231  Total temporarily impaired $ 35,930  $ 461  $ 35,574  $ 1,161  $ 71,504  $ 1,622  December 31, 2019 U. S. Treasury and other U. S. government agencies $ —  $ —  $ —  $ —  $ —  $ —  State and municipal 1,960  36  —  —  1,960  36  Corporate bonds —  —  2,499  132  2,499  132  Mortgage-backed securities 16,104  286  9,081  375  25,185  661  Asset-backed securities —  —  17,682  406  17,682  406  Total temporarily impaired $ 18,064  $ 322  $ 29,262  $ 913  $ 47,326  $ 1,235

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v3.20.2

Loans and Allowance for Loan Losses (Tables)	9 Months Ended
	Sep. 30, 2020
Receivables [Abstract]
Summary of Loans and Allowance for Loan Losses	Loans at September 30, 2020 and December 31, 2019 were comprised as follows: September 30, 2020 December 31, 2019 Commercial, Industrial and Agricultural $ 477,785  $ 245,515  Real Estate     1-4 Family Residential 334,730  227,529      1-4 Family HELOC 101,492  96,228      Multi-family and Commercial 864,756  536,845      Construction, Land Development and Farmland 366,760  273,872  Consumer 209,071  16,855  Other 8,259  13,180  Gross loans 2,362,853  1,410,024      Less: Deferred loan fees 4,955  72      Less: Allowance for loan losses 19,834  12,578  Loans, net $ 2,338,064  $ 1,397,374
Activity in the Allowance for Loan Losses By Portfolio Segment	Activity in the allowance for loan losses by portfolio segment was as follows for the three months ended September 30, 2020 and September 30, 2019, respectively: Commercial Industrial and Agricultural Multi-family and Commercial Real Estate Construction Land Development and Farmland 1-4 Family Residential Real Estate 1-4 Family HELOC Consumer Other Total Beginning balance at June 30, 2020 $ 4,675  $ 8,407  $ 2,126  $ 1,454  $ 975  $ 584  $ 16  $ 18,237  Charge-offs —  —  —  (8) —  (60) —  (68) Recoveries 88  9  4  22  12  30  —  165  Provision 249  (169) (175) 821  498  272  4  1,500  Ending balance at September 30, 2020 $ 5,012  $ 8,247  $ 1,955  $ 2,289  $ 1,485  $ 826  $ 20  $ 19,834  Beginning balance at June 30, 2019 $ 1,881  $ 4,713  $ 2,707  $ 1,455  $ 686  $ 188  $ 36  $ 11,666  Charge-offs (2) —  —  (12) —  (16) (21) (51) Recoveries 48  3  (201) 4  —  16  200  70  Provision 372  472  7  (64) 18  (18) (181) 606  Ending balance at September 30, 2019 $ 2,299  $ 5,188  $ 2,513  $ 1,383  $ 704  $ 170  $ 34  $ 12,291  Activity in the allowance for loan losses by portfolio segment was as follows for the nine months ended September 30, 2020 and September 30, 2019, respectively: Commercial Industrial and Agricultural Multi-family and Commercial Real Estate Construction Land Development and Farmland 1-4 Family Residential Real Estate 1-4 Family HELOC Consumer Other Total Beginning balance at December 31, 2019 $ 2,529  $ 5,285  $ 2,649  $ 1,280  $ 624  $ 177  $ 34  $ 12,578  Charge-offs (507) —  (114) (68) (98) (355) —  (1,142) Recoveries 126  20  8  769  15  60  —  998  Provision 2,864  2,942  (588) 308  944  944  (14) 7,400  Ending balance at September 30, 2020 $ 5,012  $ 8,247  $ 1,955  $ 2,289  $ 1,485  $ 826  $ 20  $ 19,834  Beginning balance at December 31, 2018 $ 1,751  $ 4,429  $ 2,500  $ 1,333  $ 656  $ 184  $ 39  $ 10,892  Charge-offs (170) —  —  (29) —  (37) (34) (270) Recoveries 342  62  —  220  11  28  200  863  Provision 376  697  13  (141) 37  (5) (171) 806  Ending balance at September 30, 2019 $ 2,299  $ 5,188  $ 2,513  $ 1,383  $ 704  $ 170  $ 34  $ 12,291
Schedule of Allowance for Credit Losses and Recorded Investments in Loans By Portfolio and By Impairment Method	The allowance for loan losses and the recorded investment in loans by portfolio segment and based on impairment method as of September 30, 2020 were as follows: Commercial Industrial and Agricultural Multi-family and Commercial Real Estate Construction Land Development and Farmland 1-4 Family Residential Real Estate 1-4 Family HELOC Consumer Other Total Allowance for loan losses Individually evaluated for impairment $ 764  $ —  $ —  $ —  $ —  $ —  $ —  $ 764  Acquired with credit impairment —  —  —  —  —  —  —  —  Collectively evaluated for impairment 4,248  8,247  1,955  2,289  1,485  826 20  19,070  Total $ 5,012  $ 8,247  $ 1,955  $ 2,289  $ 1,485  $ 826  $ 20  $ 19,834  Loans Individually evaluated for impairment $ 1,084  $ 2,537  $ 1,777  $ 1,687  $ 316  $ 592  $ —  $ 7,993  Acquired with credit impairment 257  1,211  787  934  14  1,330  —  4,533  Collectively evaluated for impairment 476,444  861,008  364,196  332,109  101,162  207,149 8,259  2,350,327  Total $ 477,785  $ 864,756  $ 366,760  $ 334,730  $ 101,492  $ 209,071  $ 8,259  $ 2,362,853    The allowance for loan losses and the recorded investment in loans by portfolio segment and based on impairment method as of December 31, 2019 were as follows: Commercial Industrial and Agricultural Multi-family and Commercial Real Estate Construction Land Development and Farmland 1-4 Family Residential Real Estate 1-4 Family HELOC Consumer Other Total Allowance for loan losses Individually evaluated for impairment $ 755  $ —  $ 17  $ —  $ —  $ —  $ —  $ 772  Acquired with credit impairment —  —  —  —  —  —  —  —  Collectively evaluated for impairment 1,774  5,285  2,632  1,280  624  177  34  11,806  Total $ 2,529  $ 5,285  $ 2,649  $ 1,280  $ 624  $ 177  $ 34  $ 12,578  Loans Individually evaluated for impairment $ 1,154  $ 3,439  $ 1,217  $ 1,536  $ 374  $ 28  $ —  $ 7,748  Acquired with credit impairment —  215  813  195  —  —  —  1,223  Collectively evaluated for impairment 244,361  533,191  271,842  225,798  95,854  16,827  13,180  1,401,053  Total $ 245,515  $ 536,845  $ 273,872  $ 227,529  $ 96,228  $ 16,855  $ 13,180  $ 1,410,024
Non-Accrual Loans By Class of Loan	Non-accrual loans by class of loan were as follows at September 30, 2020 and December 31, 2019: September 30, 2020 December 31, 2019 Commercial, Industrial and Agricultural $ 791  $ 572  Multi-family and Commercial Real Estate 1,532  1,276  Construction, Land Development and Farmland 1,100  555  1-4 Family Residential Real Estate 1,591  1,344  1-4 Family HELOC 239  296  Consumer 1,485  28  Total $ 6,738  $ 4,071
Individually Impaired Loans by Class of Loans	Individually impaired loans by class of loans were as follows at September 30, 2020: Unpaid Principal Balance Recorded Investment with no Allowance for Loan Losses Recorded Recorded Investment with Allowance for Loan Losses Recorded Total Recorded Investment Related Allowance for Loan Losses Commercial, Industrial and Agricultural $ 2,575  $ 436  $ 905  $ 1,341  $ 764  Multi-family and Commercial Real Estate 5,837  3,748  —  3,748  —  Construction, Land Development and Farmland 3,032  2,564  —  2,564  —  1-4 Family Residential Real Estate 3,322  2,621  —  2,621  —  1-4 Family HELOC 436  330  —  330  —  Consumer 3,819  1,922  —  1,922  —  Total $ 19,021  $ 11,621  $ 905  $ 12,526  $ 764  Individually impaired loans by class of loans were as follows at December 31, 2019: Unpaid Principal Balance Recorded Investment with no Allowance for Loan Losses Recorded Recorded Investment with Allowance for Loan Losses Recorded Total Recorded Investment Related Allowance for Loan Losses Commercial, Industrial and Agricultural $ 1,154  $ 5  $ 1,149  $ 1,154  $ 755  Multi-family and Commercial Real Estate 3,746  3,654  —  3,654  —  Construction, Land Development and Farmland 2,347  1,859  171  2,030  17  1-4 Family Residential Real Estate 1,852  1,731  —  1,731  —  1-4 Family HELOC 376  374  —  374  —  Consumer 31  28  —  28  —  Total $ 9,506  $ 7,651  $ 1,320  $ 8,971  $ 772
Average Balances of Impaired Loans and Interest Income Recognized	The average balances of impaired loans and the interest income recognized for the three and nine months ended September 30, 2020 and 2019 were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Impaired loans with an allowance Commercial, Industrial and Agricultural $ 947  $6 $ 2,435  $112 $ 975  $32 $ 1,384  $342 Multi-family and Commercial Real Estate —  —  —  —  —  —  —  —  Construction, Land Development and Farmland —  —  172  —  43  —  172  —  1-4 Family Residential Real Estate —  —  —  —  —  —  —  —  1-4 Family HELOC —  —  25  —  —  —  13  1  Consumer —  —  —  —  1  —  —  —  Subtotal 947  6  2,631  112  1,019  32  1,568  343  Impaired loans with no allowance Commercial, Industrial and Agricultural 594  42  672  9  356  56  537  33  Multi-family and Commercial Real Estate 4,375  63  3,474  46  4,138  278  2,838  141  Construction, Land Development and Farmland 2,949  28  1,797  21  2,471  115  2,399  168  1-4 Family Residential Real Estate 3,002  54  2,124  26  2,631  154  1,924  88  1-4 Family HELOC 331  —  296  —  367  —  148  4  Consumer 2,118  68  15  1  1,076  205  16  2  Subtotal $ 13,369  $255 $ 8,378  $103 $ 11,039  $808 $ 7,862  $ 436  Total $ 14,316  $ 261  $ 11,009  $ 215  $ 12,058  $840 $ 9,430  $ 779
Credit Quality Indicators By Class of Loan	Credit quality indicators by class of loan were as follows at September 30, 2020: Pass Special Mention Substandard Total Commercial, Industrial and Agricultural $ 474,199  $ 1,534  $ 2,052  $ 477,785  1-4 Family Residential Real Estate 331,930  5  2,795  334,730  1-4 Family HELOC 101,176  —  316  101,492  Multi-family and Commercial Real Estate 859,739  663  4,354  864,756  Construction, Land Development and Farmland 365,135  —  1,625  366,760  Consumer 207,016  7  2,048  209,071  Other 6,739  1,520  —  8,259  Total $ 2,345,934  $ 3,729  $ 13,190  $ 2,362,853  Credit quality indicators by class of loan were as follows at December 31, 2019: Pass Special Mention Substandard Total Commercial, Industrial and Agricultural $ 241,089  $ 2,382  $ 2,044  $ 245,515  1-4 Family Residential Real Estate 225,809  —  1,720  227,529  1-4 Family HELOC 95,678  —  550  96,228  Multi-family and Commercial Real Estate 531,055  1,519  4,271  536,845  Construction, Land Development and Farmland 272,440  —  1,432  273,872  Consumer 16,634  —  221  16,855  Other 13,180  —  —  13,180  Total $ 1,395,885  $ 3,901  $ 10,238  $ 1,410,024
Past Due Status By Class of Loan	Past due status by class of loan was as follows at September 30, 2020: 30-59 Days Past Due 60-89 Days Past Due 90+ Days Past Due Total Past Due Current Total Loans Commercial, Industrial and Agricultural $ 219  $ —  $ 412  $ 631  $ 477,154  $ 477,785  1-4 Family Residential Real Estate 1,006  544  318  1,868  332,862  334,730  1-4 Family HELOC —  —  198  198  101,294  101,492  Multi-family and Commercial Real Estate —  —  1,023  1,023  863,733  864,756  Construction, Land Development and Farmland —  684  205  889  365,871  366,760  Consumer 389  767  617  1,773  207,298  209,071  Other —  —  —  —  8,259  8,259  Total $ 1,614  $ 1,995  $ 2,773  $ 6,382  $ 2,356,471  $ 2,362,853  Past due status by class of loan was as follows at December 31, 2019: 30-59 Days Past Due 60-89 Days Past Due 90+ Days Past Due Total Past Due Current Total Loans Commercial, Industrial and Agricultural $ 79  $ 4  $ 572  $ 655  $ 244,860  $ 245,515  1-4 Family Residential Real Estate 501  236  229  966  226,563  227,529  1-4 Family HELOC —  —  296  296  95,932  96,228  Multi-family and Commercial Real Estate 485  —  558  1,043  535,802  536,845  Construction, Land Development and Farmland 255  —  339  594  273,278  273,872  Consumer 38  26  64  128  16,727  16,855  Other —  —  —  —  13,180  13,180  Total $ 1,358  $ 266  $ 2,058  $ 3,682  $ 1,406,342  $ 1,410,024
Schedule of Troubles Debt Loans by Class of Loans	The following table presents loans by class modified as troubled debt restructurings ("TDRs") during the first nine months of 2020. There were no modifications in the three months ending September 30, 2020. There were no loans that were modified as TDRs during the three or nine months ended September 30, 2019. Number of Contracts Pre-Modification Outstanding Recorded Investments Post-Modification Outstanding Recorded Investments September 30, 2020 Commercial, Industrial and Agricultural 1  $ 150  $ 150  Multi-family and Commercial Real Estate 1  721  721  1-4 Family Residential 1  394  394  Total 3  $ 1,265  $ 1,265
Outstanding Balance And Carrying Amount of the Purchased Credit Impaired Loans	The outstanding balance and carrying amount of the purchased credit impaired loans were as follows at September 30, 2020 and December 31, 2019: September 30, 2020 December 31, 2019 Commercial, Industrial and Agricultural $ 989  $ —  Multi-family and Commercial Real Estate 2,243  217  Construction, Land Development and Farmland 1,003  1,021  1-4 Family Residential Real Estate 1,211  231  1-4 Family HELOC 18  —  Consumer 2,105  —  Total outstanding balance 7,569  1,469  Less remaining purchase discount 3,036  246  Allowance for loan losses —  —  Carrying amount, net of allowance for loan losses and remaining purchase discounts $ 4,533  $ 1,223
Activity Related to Accretable Portion of the Purchase Discount on Loans Acquired With Deteriorated Credit Quality	Activity related to the accretable portion of the purchase discount on loans acquired with deteriorated credit quality is as follows for the nine months ended September 30, 2020 and 2019: 2020 2019 Balance at January 1, $ 98  $ 110  New loans purchased 870  —  Year-to-date settlements (137) (12) Balance at September 30, $ 831  $ 98

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- Definition Tabular disclosure of average recorded investment for impaired financing receivables. + References No definition available. + Details Name: rbnc_ImpairedFinancingReceivablesAverageRecordedInvestmentTableTextBlock Namespace Prefix: rbnc_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of activity related to accretable yield of loans acquired with evidence of credit quality deterioration since origination. + References No definition available. + Details Name: rbnc_ScheduleOfActivityRelatedToAccretableYieldOfLoansAcquiredWithEvidenceOfCreditQualityDeteriorationSinceOriginationTableTextBlock Namespace Prefix: rbnc_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of allowance for credit losses and finance receivables by individually and collectively evaluated for impairment. + References No definition available. + Details Name: rbnc_ScheduleOfAllowanceForCreditLossesAndFinanceReceivablesByPortfolioIndividuallyAndCollectivelyEvaluatedForImpairmentTableTextBlock Namespace Prefix: rbnc_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of loans acquired with deteriorated credit quality. + References No definition available. + Details Name: rbnc_ScheduleOfLoansAcquiredWithDeterioratedCreditQualityTableTextBlock Namespace Prefix: rbnc_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of allowance for credit loss on financing receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details Name: us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of financing receivables by credit quality indicator. The credit quality indicator is a statistic about the credit quality of financing receivables. Examples include, but not limited to, consumer credit risk scores, credit-rating-agency ratings, an entity's internal credit risk grades, loan-to-value ratios, collateral, collection experience and other internal metrics. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919230-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 29 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953659-111524 + Details Name: us-gaap_FinancingReceivableCreditQualityIndicatorsTableTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of impaired financing receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524 + Details Name: us-gaap_ImpairedFinancingReceivablesTableTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of aging analysis for financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919253-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953401-111524 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5111-111524 + Details Name: us-gaap_PastDueFinancingReceivablesTableTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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- References No definition available. + Details Name: us-gaap_ReceivablesAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of financing receivable on nonaccrual status. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5111-111524 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447 + Details Name: us-gaap_ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of financing receivable modified as troubled debt restructuring. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524 + Details Name: us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

v3.20.2

Leases (Tables)	9 Months Ended
	Sep. 30, 2020
Leases [Abstract]
Schedule of Information Related to Operating Leases	Information related to the Company's operating leases is presented below: September 30, 2020 Operating leases right of use assets $ 14,619  Operating leases liabilities $ 15,756  Weighted average remaining lease term (in years) 6.14 Weighted average discount rate 4.34  %
Components of Lease Expense Included in Occupancy Expenses	The components of lease expense included in occupancy expenses for the three and nine months ended September 30, 2020, were as follows: Three Months Ended September 30, 2020 Nine Months Ended September 30, 2020 Operating lease cost $ 851  $ 2,333  Short-term lease cost 2  2  Variable lease cost 98 276  Total lease cost $ 951  $ 2,611
Schedule of Maturity Analysis of Operating Lease Liabilities	A maturity analysis of operating lease liabilities and a reconciliation of undiscounted cash flows to the total operating lease liability is as follows: Lease payments due on or before September 30, 2020 September 30, 2021 $ 3,155  September 30, 2022 2,755  September 30, 2023 2,716  September 30, 2024 2,703  September 30, 2025 2,372  Thereafter 4,289  Total undiscounted cash flows 17,990  Discount on cash flows (2,234) Total lease liability $ 15,756

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- Definition Assets And Liabilities, Lessee [Table Text Block] + References No definition available. + Details Name: rbnc_AssetsAndLiabilitiesLesseeTableTextBlock Namespace Prefix: rbnc_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 + Details Name: us-gaap_LeaseCostTableTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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- References No definition available. + Details Name: us-gaap_LeasesAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980 + Details Name: us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

v3.20.2

Derivatives (Tables)	9 Months Ended
	Sep. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)	Summary information related to the interest rate swaps designated as cash flow hedges as of September 30, 2020, is as follows: Notional amounts $ 160,000  Weighted average pay rates 2.050  % Weighted average receive rates 0.390  % Weighted average maturity 3.35 years Unrealized losses $ 8,526  The following table presents the net gains (losses) recorded in accumulated other comprehensive income and the Consolidated Statements of Income, net of tax, relating to the cash flow derivative instruments for the three and nine months ended September 30, 2020 and 2019, respectively: Amount of Gain (Loss) Recognized in Other Comprehensive Income (Loss) Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 Interest rate swaps-subordinate debentures $ 51  $ (42) $ (230) $ (264) Interest rate swaps-interest-bearing liabilities 324  (233) (4,532) (1,342) $ 375  $ (275) $ (4,762) $ (1,606)
Cash Flow Hedges Included in the Consolidated Balance Sheets	The following table reflects the cash flow hedges included in the Consolidated Balance Sheets as of September 30, 2020 and December 31, 2019, respectively: September 30, 2020 December 31, 2019 Notional Amount Fair Value Notional Amount Fair Value Included in other liabilities: Interest rate swaps related to: Subordinated debentures $ 10,000  $ (750) $ 10,000  $ (439) Short-term interest-bearing liabilities 150,000  (7,776) 100,000  (1,639) Total included in other liabilities $ 160,000  $ (8,526) $ 110,000  $ (2,078)
Schedule of Derivative Instruments for Fair Value hedges	Fair Value Hedges Summary information related to the fair value hedges as of September 30, 2020, is as follows: Notional amounts $ 19,345  Weighted average pay rates 3.51  % Weighted average receive rates 1.21  % Weighted average maturity 8.34 years Unrealized losses $ 1,690
Fair Value Hedging Included in the Consolidated Balance Sheets	The following table reflects the fair value hedges included in the Consolidated Balance Sheets as of September 30, 2020 and December 31, 2019, respectively: September 30, 2020 December 31, 2019 Notional Amount Fair Value Notional Amount Fair Value Included in other liabilities: Interest rate swaps related to investments 19,345  (1,690) 19,605  (630) Total included in other liabilities $ 19,345  $ (1,690) $ 19,605  $ (630) The following table reflects the fair value hedges and the underlying hedged items included in the Consolidated Statements of Income for the three and nine months ended September 30, 2020 and 2019, respectively: Three Months Ended September 30, Nine Months Ended September 30, Item Location 2020 2019 2020 2019 Interest rate swaps - securities Interest on investment securities, nontaxable $ (118) $ (20) $ (243) $ (21) Hedged item - securities Interest on investment securities, nontaxable $ 118  $ 20  $ 243  $ 21

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- Definition Tabular disclosure of gain (loss) on derivative and nonderivative instruments designated and qualifying as cash flow hedge recorded in accumulated other comprehensive income (AOCI) and reclassified into earnings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959 + Details Name: us-gaap_ScheduleOfCashFlowHedgesIncludedInAccumulatedOtherComprehensiveIncomeLossTableTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure for cash flow hedging instruments of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959 + Details Name: us-gaap_ScheduleOfCashFlowHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121590274&loc=d3e41620-113959 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121590274&loc=d3e41638-113959 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=121590274&loc=d3e41678-113959 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121590274&loc=d3e41641-113959 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959 Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579240-113959 + Details Name: us-gaap_ScheduleOfDerivativeInstrumentsTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure for fair value hedging instruments of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959 + Details Name: us-gaap_ScheduleOfFairValueHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

v3.20.2

Stock-based Compensation (Tables)	9 Months Ended
	Sep. 30, 2020
Share-based Payment Arrangement [Abstract]
Schedule of Stock-Based Compensation Expense and Employee Benefit Services	The Company has recognized stock-based compensation expense, within salaries and employee benefits for employees, and within other non-interest expense for directors, in the consolidated statement of income as follows: Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 Stock-based compensation expense before income taxes $ 349  $ 337  $ 1,183  $ 867  Less: deferred tax benefit (91) (88) (309) (227) Reduction of net income $ 258  $ 249  $ 874  $ 640
Share-based Compensation, Stock Options, Activity	A summary of stock option activity for the nine months ended September 30, 2020 is as follows: Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term Aggregate Intrinsic Value Outstanding at January 1, 2020 149,293 $ 18.81  6.68 years $ 553  Granted —  $ —  Exercised (6,544) $ 12.03  26 Forfeited or expired (20,007) $ 21.02  Outstanding at September 30, 2020 122,742 $ 18.81  5.95 years $ 73  Exercisable at September 30, 2020 83,042 $ 16.43  5.03 years $ 73
Schedule of Nonvested Share Activity	Shares Weighted Average Grant-Date Fair Value Non-vested options at January 1, 2020 74,600  $6.08 Granted —  $— Vested (23,400) $5.23 Forfeited (11,500) $6.37 Non-vested options at September 30, 2020 39,700  $6.56
Activity Related to Non-Vested Restricted Stock	The following table shows the activity related to non-vested restricted stock and restricted stock unit awards for the nine months ended September 30, 2020: Restricted Stock Units Restricted Stock Underlying Shares Weighted Average Grant-Date Fair Value Shares Weighted Average Grant-Date Fair Value Non-vested units/shares at January 1, 2020 47,750  $ 23.30  90,960  $ 25.31  Granted 102,400  14.02  —  —  Vested (12,500) 22.57  (48,550) 23.99  Forfeited (2,000) 10.25  —  Non-vested units/shares at September 30, 2020 135,650  $ 16.55  42,410  $ 26.82

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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_NonvestedRestrictedStockSharesActivityTableTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of the changes in outstanding nonvested shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ScheduleOfNonvestedShareActivityTableTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

v3.20.2

Regulatory Capital Requirements (Tables)	9 Months Ended
	Sep. 30, 2020
Banking and Thrift, Other Disclosures [Abstract]
Actual and Required Capital Amounts and Ratios	Capital amounts and ratios for Reliant Bancorp and the Bank (required) are presented below as of September 30, 2020 and December 31, 2019. Actual Regulatory Capital Minimum Required Capital Including Capital Conservation Buffer To Be Well Capitalized Under Prompt Corrective Action Provisions Amount Ratio Amount Ratio Amount Ratio September 30, 2020 Reliant Bancorp Tier I leverage $ 253,534  8.72  % $ 116,300  4.00  % $ 145,375  5.00  % Common equity tier I 241,786  9.77  % 173,235  7.00  % 160,861  6.50  % Tier I risk-based capital 253,534  10.25  % 210,248  8.50  % 197,880  8.00  % Total risk-based capital 332,434  13.44  % 259,714  10.50  % 247,347  10.00  % Bank Tier I leverage $ 304,376  10.48  % $ 116,174  4.00  % $ 145,218  5.00  % Common equity tier I 304,376  12.33  % 172,801  7.00  % 160,458  6.50  % Tier I risk-based capital 304,376  12.33  % 209,829  8.50  % 197,486  8.00  % Total risk-based capital 324,635  13.15  % 259,214  10.50  % 246,871  10.00  % December 31, 2019 Reliant Bancorp Tier I leverage $ 176,748  9.74  % $ 72,586  4.00  % $ 90,733  5.00  % Common equity tier I 165,063  10.55  % 109,520  7.00  % 101,698  6.50  % Tier I risk-based capital 176,748  11.30  % 132,952  8.50  % 125,131  8.00  % Total risk-based capital 249,751  15.97  % 164,207  10.50  % 156,388  10.00  % Bank Tier I leverage $ 186,734  10.30  % $ 72,518  4.00  % $ 90,648  5.00  % Common equity tier I 186,734  11.95  % 109,384  7.00  % 101,571  6.50  % Tier I risk-based capital 186,734  11.95  % 132,823  8.50  % 125,010  8.00  % Total risk-based capital 199,737  12.79  % 163,975  10.50  % 156,167  10.00  %

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- Definition Tabular disclosure of the capital amounts and ratios as of the balance sheet date, indicating whether the entity or entities are in compliance with regulatory capital requirements, by entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958570-112826 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details Name: us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

v3.20.2

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2020
Earnings Per Share [Abstract]
Summary of the Components Comprising Basic and Diluted Earnings Per Share	The following is a summary of the components comprising basic and diluted earnings per common share of stock ("EPS"): Three Months Ended Nine Months Ended September 30, September 30, 2020 2019 2020 2019 Basic EPS Computation Net income attributable to common shareholders $ 11,531  $ 4,000  $ 19,186  $ 12,063  Weighted average common shares outstanding 16,587,274  11,104,918  15,053,087  11,247,921  Basic earnings per common share $ 0.70  $ 0.36  $ 1.27  $ 1.07  Diluted EPS Computation Net income attributable to common shareholders $ 11,531  $ 4,000  $ 19,186  $ 12,063  Weighted average common shares outstanding 16,587,274  11,104,918  15,053,087  11,247,921  Dilutive effect of stock options, restricted stock shares and units, and employee stock purchase plan 62,399  72,449  67,616  66,445  Adjusted weighted average common shares outstanding 16,649,673  11,177,367  15,120,703  11,314,366  Diluted earnings per common share $ 0.69  $ 0.36  $ 1.27  $ 1.07

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details Name: us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

v3.20.2

Fair Values of Assets and Liabilities (Tables)	9 Months Ended
	Sep. 30, 2020
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis	The following table sets forth the Company’s major categories of assets and liabilities measured at fair value on a recurring basis, by level within the fair value hierarchy, as of September 30, 2020 and December 31, 2019: Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) September 30, 2020 Assets U. S. Treasury and other U. S. government agencies $ 12,117  $ —  $ 12,117  $ —  State and municipal 190,623  —  190,623  —  Corporate bonds 15,809  —  15,809  —  Mortgage backed securities 40,376  —  40,376  —  Asset backed securities 14,968  —  14,968  —  Liabilities Derivative liabilities $ 10,216  $ —  $ 10,216  $ —  December 31, 2019 Assets U. S. Treasury and other U. S. government agencies $ 59  $ —  $ 59  $ —  State and municipal 196,660  —  196,660  —  Corporate bonds 7,845  —  7,845  —  Mortgage backed securities 37,761  —  37,761  —  Asset backed securities 17,968  —  17,968  —  Derivative assets 688  —  688  —  Liabilities Derivative liabilities $ 3,396  $ —  $ 3,396  $ —  The following table sets forth the Company’s major categories of assets and liabilities measured at fair value on a nonrecurring basis, by level within the fair value hierarchy, as of September 30, 2020 and December 31, 2019: Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) September 30, 2020         Assets         Impaired loans $ 141  $ —  $ —  $ 141  Other real estate 1,326  —  —  1,326  Other repossessions 1,603  —  —  1,603  December 31, 2019         Assets         Impaired loans $ 553  $ —  $ —  $ 553  Other real estate 750 —  —  750  Other repossessions — —  —  —
Level 3 Input Information for Assets Measured at Fair Value on a Nonrecurring Basis	The following table presents additional quantitative information about assets measured at fair value on a nonrecurring basis and for which we have utilized Level 3 inputs to determine fair value at September 30, 2020 and December 31, 2019: Valuation Techniques (1) Significant Unobservable Inputs Range (Weighted Average) Impaired loans Appraisal Estimated costs to sell 10% Other real estate Appraisal Estimated costs to sell 10% Other repossessions Third-party guidelines Estimated costs to sell 10% (1)The fair value is generally determined through independent appraisals of the underlying collateral, which may include Level 3 inputs that are not identifiable, or by using the discounted cash flow method if the loan is not collateral dependent. Estimated cash flows change and appraised values of the assets or collateral underlying the loans will be sensitive to changes.
Carrying Amounts And Estimated Fair Values of Financial instruments Not Reported at Fair Value	Carrying amounts and estimated fair values of financial instruments not reported at fair value at September 30, 2020 and December 31, 2019 were as follows: September 30, 2020 Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets Cash and due from banks $ 14,050  $ 14,050  $ 14,050  $ —  $ —  Federal funds sold 12,273  12,273  —  12,273  —  Loans, net 2,338,064  2,336,300  —  —  2,336,300  Mortgage loans held for sale 99,587  99,587  —  99,587  —  Accrued interest receivable 14,615  14,615  —  14,615  —  Restricted equity securities 17,367  17,367  —  17,367  —  Financial liabilities Deposits $ 2,565,502  $ 2,571,305  $ —  $ —  $ 2,571,305  Accrued interest payable 3,744  3,744  —  3,744  —  Subordinate debentures 70,389  69,237  —  —  69,237  Federal Home Loan Bank advances 40,555  40,887  —  —  40,887  December 31, 2019 Financial assets Cash and due from banks $ 7,953  $ 7,953  $ 7,953  $ —  $ —  Federal funds sold 52  52  —  52  —  Loans, net 1,397,374  1,383,719  —  —  1,383,719  Mortgage loans held for sale 37,476  38,379  —  38,379  —  Accrued interest receivable 7,188  7,188  —  7,188  —  Restricted equity securities 11,279  11,279  —  11,279  —  Financial liabilities Deposits $ 1,584,453  $ 1,582,781  $ —  $ —  $ 1,582,781  Accrued interest payable 2,022  2,022  —  2,022  —  Subordinate debentures 70,883  71,454  —  —  71,454  Federal Home Loan Bank advances 10,737  10,755  —  —  10,755

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- Definition Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details Name: us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique used to measure similar asset in prior period by class of asset or liability on non-recurring basis. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details Name: us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisValuationTechniquesTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13467-108611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details Name: us-gaap_FairValueByBalanceSheetGroupingTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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v3.20.2

Segment Reporting (Tables)	9 Months Ended
	Sep. 30, 2020
Segment Reporting [Abstract]
Summarized Results of Operations by Business Segment	The following presents summarized results of operations for the Company’s business segments for the periods indicated: Three Months Ended September 30, 2020 Commercial Banking Residential Mortgage Banking Elimination Entries Consolidated Net interest income $ 29,729  $ 808  $ —  $ 30,537  Provision for loan losses 1,500  —  —  1,500  Noninterest income 2,218  3,797  (14) 6,001  Noninterest expense (excluding merger expense) 16,065  4,190  —  20,255  Merger expense 78  —  —  78  Income tax expense (benefit) 2,773  27  —  2,800  Net income (loss) 11,531  388  (14) 11,905  Noncontrolling interest in net income of subsidiary —  (388) 14  (374) Net income attributable to common shareholders $ 11,531  $ —  $ —  $ 11,531    Three Months Ended September 30, 2019   Commercial Banking Residential Mortgage Banking Elimination Entries Consolidated Net interest income $ 13,910  $ 154  $ —  $ 14,064  Provision for loan losses 606  —  —  606  Noninterest income 1,375  1,377  8  2,760  Noninterest expense (excluding merger expense) 9,726  3,022  —  12,748  Merger expense 299  —  —  299  Income tax expense (benefit) 654  (97) —  557  Net income (loss) 4,000  (1,394) 8  2,614  Noncontrolling interest in net loss of subsidiary —  1,394  (8) 1,386  Net income attributable to common shareholders $ 4,000  $ —  $ —  $ 4,000  Nine Months Ended September 30, 2020 Commercial Banking Residential Mortgage Banking Elimination Entries Consolidated Net interest income $ 75,933  $ 1,677  $ —  $ 77,610  Provision for loan losses 7,400  —  —  7,400  Noninterest income 6,102  7,601  3  13,706  Noninterest expense (excluding merger expense) 44,961  10,340  —  55,301  Merger expense 6,895  —  —  6,895  Income tax expense (benefit) 3,593  (69) —  3,524  Net income (loss) 19,186  (993) 3  18,196  Noncontrolling interest in net loss of subsidiary —  993  (3) 990  Net income attributable to common shareholders $ 19,186  $ —  $ —  $ 19,186  Nine Months Ended September 30, 2019 Commercial Banking Residential Mortgage Banking Elimination Entries Consolidated Net interest income $ 40,986  $ 352  $ —  $ 41,338  Provision for loan losses 806  —  —  806  Noninterest income 4,226  3,187  (17) 7,396  Noninterest expense (excluding merger expense) 30,300  8,317  —  38,617  Merger expense 302  —  —  302  Income tax expense (benefit) 1,741  (311) —  1,430  Net income (loss) 12,063  (4,467) (17) 7,579  Noncontrolling interest in net loss of subsidiary —  4,467  17  4,484  Net income attributable to common shareholders $ 12,063  $ —  $ —  $ 12,063

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599 + Details Name: us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock Namespace Prefix: us-gaap_ Data Type: nonnum:textBlockItemType Balance Type: na Period Type: duration

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v3.20.2

Business Combinations (Tables)	9 Months Ended
	Sep. 30, 2020
Business Combinations [Abstract]
Calculation and Allocation of Purchase Price	The following table details the financial impact of the TCB Holdings Transaction, including the calculation of the purchase price, the allocation of the purchase price to the fair values of net assets assumed and goodwill recognized: Calculation of Purchase Price Shares of Tennessee Community Bank Holdings, Inc. common stock outstanding as of January 1, 2020 1,055,041  Exchange ratio for Reliant Bancorp, Inc. common stock 0.769  Reliant Bancorp, Inc. common stock shares issued 811,210  Reliant Bancorp, Inc. share price at January 1, 2020 $ 22.24  Estimated value of Reliant Bancorp, Inc. shares issued 18,041 Cash settlement for Tennessee Community Bank Holdings, Inc. common stock ($17.13 per share) 18,073  Cash settlement for Tennessee Community Bank Holdings, Inc.'s 26,450 outstanding stock options ($34.25 settlement price less weighted average exercise price of $18.00) 430  Cash settlement for Reliant Bancorp, Inc. fractional shares ($22.36 per pro rata fractional share) 3  Estimated fair value of Tennessee Community Bank Holdings, Inc. $ 36,547  Allocation of Purchase Price Total consideration above $ 36,547  Fair value of assets acquired and liabilities assumed Cash and cash equivalents 11,026  Investment securities available for sale 56,336  Loans, net of unearned income 171,445  Accrued interest receivable 948  Premises and equipment 6,401  Cash surrender value of life insurance contracts 5,629  Restricted equity securities 909  Core deposit intangible 3,617  Other assets 833  Deposits (210,538) Deferred tax liability (337) Borrowings (58) FHLB advances (13,102) Other liabilities (3,682) Total fair value of net assets acquired 29,427  Goodwill $ 7,120  The following table details the financial impact of the FABK Transaction, including the calculation of the purchase price, the allocation of the purchase price to the fair values of net assets assumed and goodwill recognized: Calculation of Purchase Price Shares of First Advantage Bancorp common stock outstanding as of April 1, 2020 3,935,165  Conversion of restricted stock units to shares of common stock of First Advantage Bancorp as of April 1, 2020 2,000  Total First Advantage Bancorp common stock outstanding as of April 1, 2020 3,937,165  Exchange ratio for Reliant Bancorp, Inc. common stock 1.17 Reliant Bancorp, Inc. common stock shares issued 4,606,483  Remove fractional shares (64) Reliant Bancorp, Inc. common stock shares issued 4,606,419 Reliant Bancorp, Inc. share price at April 1, 2020 $ 11.27  Estimated value of Reliant Bancorp, Inc. shares issued 51,914  Cash settlement for Reliant Bancorp, Inc. fractional shares ($11.74 per pro rata fractional share) 1 Cash settlement for First Advantage Bancorp common stock ($3.00 per share) 11,805 Cash settlement for First Advantage Bancorp restricted stock units ($3.00 per share) 6 Cash settlement for First Advantage Bancorp's 34,800 outstanding stock options ($30.00 settlement price less weighted average exercise price of $19.44) 368 Estimated fair value of First Advantage Bancorp $ 64,094  Allocation of Purchase Price Total consideration above $ 64,094  Fair value of assets acquired and liabilities assumed Cash and cash equivalents 11,159  Investment securities available for sale 35,970  Loans, net of unearned income 622,423  Mortgage loans held for sale, net 5,878  Premises and equipment 7,905  Deferred tax asset 6,024  Cash surrender value of life insurance contracts 14,776  Other real estate and repossessed assets 1,259  Core deposit intangible 2,280  Operating lease right-of-use assets 6,536  Other assets 10,934  Deposits (608,690) Borrowings (35,962) Operating lease liabilities (6,536) Other liabilities (10,606) Total fair value of net assets acquired 63,350  Goodwill $ 744
Schedule of Operating Cost Savings and Other Business Synergies	The Company expects to achieve operating cost savings and other business synergies as a result of the acquisitions which are also not reflected in the pro forma amounts. Three Months Ended Nine Months Ended September 30, September 30, 2020 2019 2020 2019 Revenue(1) $ 35,881  $ 29,478  $ 106,771  $ 86,217  Net interest income $ 29,880  $ 25,232  $ 85,741  $ 74,835  Net income attributable to common shareholders $ 11,117  $ 9,182  $ 17,715  $ 28,545  (1) Net interest income plus noninterest income

X

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v3.20.2

Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019	Jan. 01, 2020
Noncontrolling Interest [Line Items]
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201602Member	us-gaap:AccountingStandardsUpdate201602Member
Operating leases right of use assets	$ 14,619		$ 11,973
Operating leases liabilities	$ 15,756		$ 11,900
Reliant Mortgage Ventures, LLC
Noncontrolling Interest [Line Items]
Governance rights control by the Bank (in percent)	51.00%

X

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X

- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details Name: us-gaap_OperatingLeaseLiability Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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v3.20.2

Securities - Available-for-sale Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Total	$ 260,282	$ 250,722
Gross Unrealized Gains	15,233	10,806
Gross Unrealized Losses	(1,622)	(1,235)
Estimated Fair Value	273,893	260,293
U. S. Treasury and other U. S. government agencies
Debt Securities, Available-for-sale [Line Items]
Total	12,117	59
Gross Unrealized Gains	1	0
Gross Unrealized Losses	(1)	0
Estimated Fair Value	12,117	59
State and municipal
Debt Securities, Available-for-sale [Line Items]
Total	175,976	186,283
Gross Unrealized Gains	14,717	10,413
Gross Unrealized Losses	(70)	(36)
Estimated Fair Value	190,623	196,660
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Total	15,750	7,880
Gross Unrealized Gains	167	97
Gross Unrealized Losses	(108)	(132)
Estimated Fair Value	15,809	7,845
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Total	41,240	38,126
Gross Unrealized Gains	348	296
Gross Unrealized Losses	(1,212)	(661)
Estimated Fair Value	40,376	37,761
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Total	15,199	18,374
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(231)	(406)
Estimated Fair Value	$ 14,968	$ 17,968

X

- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563 + Details Name: us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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v3.20.2

Securities - Narrative (Details) $ in Thousands	Sep. 30, 2020 USD ($) security	Dec. 31, 2019 USD ($) security
Investments, Debt and Equity Securities [Abstract]
Securities pledged, carrying amount | $	$ 43,406	$ 46,918
Number of securities in unrealized loss position | security	43	47

X

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v3.20.2

Securities - Results from Sales of Securities (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Investments, Debt and Equity Securities [Abstract]
Proceeds	$ 103,901	$ 52,434
Gross gains	810	475
Gross losses	$ (483)	$ (169)

X

- Definition Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27357-111563 + Details Name: us-gaap_DebtSecuritiesAvailableForSaleRealizedGain Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Amount of realized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27357-111563 + Details Name: us-gaap_DebtSecuritiesAvailableForSaleRealizedLoss Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- References No definition available. + Details Name: us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121553693&loc=d3e26853-111562 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3151-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585 + Details Name: us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

v3.20.2

Securities - Available-for-sale Securities Classified by Contractual Maturity Date (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Amortized Cost
Due within one year	$ 12,567
Due in one to five years	2,175
Due in five to ten years	17,222
Due after ten years	171,879
Total	260,282	$ 250,722
Estimated Fair Value
Due within one year	12,565
Due in one to five years	2,186
Due in five to ten years	17,965
Due after ten years	185,833
Total	273,893	260,293
Mortgage-backed securities
Amortized Cost
Securities	41,240
Total	41,240	38,126
Estimated Fair Value
Securities	40,376
Total	40,376	37,761
Asset-backed securities
Amortized Cost
Securities	15,199
Total	15,199	18,374
Estimated Fair Value
Securities	14,968
Total	$ 14,968	$ 17,968

X

- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121558606&loc=SL82898722-210454 + Details Name: us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27198-111563 + Details Name: us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27198-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3A -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=120252992&loc=SL120269850-112803 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563 + Details Name: us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27198-111563 + Details Name: us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27198-111563 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120252992&loc=SL120269850-112803 + Details Name: us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27198-111563 + Details Name: us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120252992&loc=SL120269850-112803 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27198-111563 + Details Name: us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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X

- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27198-111563 + Details Name: us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120252992&loc=SL120269850-112803 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27198-111563 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563 + Details Name: us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), without single maturity date and not allocated over maturity grouping. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27198-111563 + Details Name: us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), without single maturity date and not allocated over maturity grouping. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27198-111563 + Details Name: us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121558606&loc=SL82898722-210454 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121553693&loc=d3e26610-111562 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563 + Details Name: us-gaap_AvailableForSaleSecuritiesDebtSecurities Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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v3.20.2

Securities - Schedule of Temporary Impairment Losses, Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Estimated Fair Value
Less than 12 months	$ 35,930	$ 18,064
12 months or more	35,574	29,262
Total	71,504	47,326
Unrealized Loss
Less than 12 months	461	322
12 months or more	1,161	913
Total	1,622	1,235
U. S. Treasury and other U. S. government agencies
Estimated Fair Value
Less than 12 months	12,066	0
12 months or more	0	0
Total	12,066	0
Unrealized Loss
Less than 12 months	1	0
12 months or more	0	0
Total	1	0
State and municipal
Estimated Fair Value
Less than 12 months	7,319	1,960
12 months or more	0	0
Total	7,319	1,960
Unrealized Loss
Less than 12 months	70	36
12 months or more	0	0
Total	70	36
Corporate bonds
Estimated Fair Value
Less than 12 months	9,142	0
12 months or more	500	2,499
Total	9,642	2,499
Unrealized Loss
Less than 12 months	107	0
12 months or more	1	132
Total	108	132
Mortgage-backed securities
Estimated Fair Value
Less than 12 months	6,613	16,104
12 months or more	20,982	9,081
Total	27,595	25,185
Unrealized Loss
Less than 12 months	282	286
12 months or more	930	375
Total	1,212	661
Asset-backed securities
Estimated Fair Value
Less than 12 months	790	0
12 months or more	14,092	17,682
Total	14,882	17,682
Unrealized Loss
Less than 12 months	1	0
12 months or more	230	406
Total	$ 231	$ 406

X

- Definition Debt Securities, Available-For-Sale, Unrealized Loss Position, Fair Value [Abstract] + References No definition available. + Details Name: rbnc_DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueAbstract Namespace Prefix: rbnc_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

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X

- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121582814&loc=SL82922890-210455 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27337-111563 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456 + Details Name: us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121582814&loc=SL82922890-210455 + Details Name: us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121582814&loc=SL82922890-210455 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456 + Details Name: us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121582814&loc=SL82922890-210455 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27337-111563 + Details Name: us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position without allowance for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=121582814&loc=SL82922888-210455 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456 + Details Name: us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=121582814&loc=SL82922888-210455 + Details Name: us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

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X

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- Details Name: us-gaap_FinancialInstrumentAxis=us-gaap_AssetBackedSecuritiesMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.20.2

Loans and Allowance for Loan Losses - Schedule of Loans and Financial Receivables (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 2,362,853		$ 1,410,024
Less: Deferred loan fees	4,955		72
Less: Allowance for loan losses	19,834	$ 18,237	12,578	$ 12,291	$ 11,666	$ 10,892
Loans, net	2,338,064		1,397,374
Commercial, Industrial and Agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	477,785		245,515
Less: Allowance for loan losses	5,012	4,675	2,529	2,299	1,881	1,751
Real Estate | Multi-family and Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	864,756		536,845
Less: Allowance for loan losses	8,247	8,407	5,285	5,188	4,713	4,429
Real Estate | Construction, Land Development and Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	366,760		273,872
Less: Allowance for loan losses	1,955	2,126	2,649	2,513	2,707	2,500
Real Estate | 1-4 Family Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	334,730		227,529
Less: Allowance for loan losses	2,289	1,454	1,280	1,383	1,455	1,333
Real Estate | 1-4 Family HELOC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	101,492		96,228
Less: Allowance for loan losses	1,485	975	624	704	686	656
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	209,071		16,855
Less: Allowance for loan losses	826	584	177	170	188	184
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	8,259		13,180
Less: Allowance for loan losses	$ 20	$ 16	$ 34	$ 34	$ 36	$ 39

X

- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_AccountsNotesAndLoansReceivableLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(2)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121599878&loc=SL82895884-210446 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details Name: us-gaap_FinancingReceivableAllowanceForCreditLosses Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of fee received for commitment to originate or purchase financing receivable where likelihood of commitment being exercised is remote. Excludes financing receivable covered under loss sharing agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6378536&loc=d3e10095-111533 + Details Name: us-gaap_FinancingReceivableDeferredIncome Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount, before allowance for credit loss, of financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919230-210447 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448 + Details Name: us-gaap_NotesReceivableGross Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919230-210447 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 + Details Name: us-gaap_NotesReceivableNet Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Details Name: us-gaap_FinancingReceivablePortfolioSegmentAxis=rbnc_CommercialIndustrialAndAgriculturalPortfolioSegmentMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_MultiFamilyAndCommercialMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_ConstructionLandDevelopmentAndFarmlandMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_OneToFourFamilyResidentialMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_OneToFourFamilyHELOCMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivablePortfolioSegmentAxis=rbnc_OtherPortfolioSegmentMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.20.2

Loans and Allowance for Loan Losses - Schedule of Allowances for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 18,237	$ 11,666	$ 12,578	$ 10,892
Charge-offs	(68)	(51)	(1,142)	(270)
Recoveries	165	70	998	863
Provision	1,500	606	7,400	806
Ending balance	19,834	12,291	19,834	12,291
Commercial, Industrial and Agricultural
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	4,675	1,881	2,529	1,751
Charge-offs	0	(2)	(507)	(170)
Recoveries	88	48	126	342
Provision	249	372	2,864	376
Ending balance	5,012	2,299	5,012	2,299
Real Estate | Multi-family and Commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	8,407	4,713	5,285	4,429
Charge-offs	0	0	0	0
Recoveries	9	3	20	62
Provision	(169)	472	2,942	697
Ending balance	8,247	5,188	8,247	5,188
Real Estate | Construction, Land Development and Farmland
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	2,126	2,707	2,649	2,500
Charge-offs	0	0	(114)	0
Recoveries	4	(201)	8	0
Provision	(175)	7	(588)	13
Ending balance	1,955	2,513	1,955	2,513
Real Estate | 1-4 Family Residential
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	1,454	1,455	1,280	1,333
Charge-offs	(8)	(12)	(68)	(29)
Recoveries	22	4	769	220
Provision	821	(64)	308	(141)
Ending balance	2,289	1,383	2,289	1,383
Real Estate | 1-4 Family HELOC
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	975	686	624	656
Charge-offs	0	0	(98)	0
Recoveries	12	0	15	11
Provision	498	18	944	37
Ending balance	1,485	704	1,485	704
Consumer
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	584	188	177	184
Charge-offs	(60)	(16)	(355)	(37)
Recoveries	30	16	60	28
Provision	272	(18)	944	(5)
Ending balance	826	170	826	170
Other
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	16	36	34	39
Charge-offs	0	(21)	0	(34)
Recoveries	0	200	0	200
Provision	4	(181)	(14)	(171)
Ending balance	$ 20	$ 34	$ 20	$ 34

X

- Definition Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(2)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121599878&loc=SL82895884-210446 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details Name: us-gaap_FinancingReceivableAllowanceForCreditLosses Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of increase in allowance for credit loss on financing receivable from recovery. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details Name: us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details Name: us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Amount of writeoff of financing receivable, charged against allowance for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 + Details Name: us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details Name: us-gaap_ProvisionForLoanLeaseAndOtherLosses Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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X

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X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_MultiFamilyAndCommercialMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_ConstructionLandDevelopmentAndFarmlandMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_OneToFourFamilyResidentialMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_OneToFourFamilyHELOCMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivablePortfolioSegmentAxis=rbnc_OtherPortfolioSegmentMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.20.2

Loans and Allowance for Loan Losses - Allowance for Loan Losses and Recorded Investment by Portfolio Segment (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Allowance for loan losses
Individually evaluated for impairment	$ 764		$ 772
Acquired with credit impairment	0		0
Collectively evaluated for impairment	19,070		11,806
Total	19,834	$ 18,237	12,578	$ 12,291	$ 11,666	$ 10,892
Loans
Individually evaluated for impairment	7,993		7,748
Acquired with credit impairment	4,533		1,223
Collectively evaluated for impairment	2,350,327		1,401,053
Total	2,362,853		1,410,024
Commercial, Industrial and Agricultural
Allowance for loan losses
Individually evaluated for impairment	764		755
Acquired with credit impairment	0		0
Collectively evaluated for impairment	4,248		1,774
Total	5,012	4,675	2,529	2,299	1,881	1,751
Loans
Individually evaluated for impairment	1,084		1,154
Acquired with credit impairment	257		0
Collectively evaluated for impairment	476,444		244,361
Total	477,785		245,515
Real Estate | Multi-family and Commercial
Allowance for loan losses
Individually evaluated for impairment	0		0
Acquired with credit impairment	0		0
Collectively evaluated for impairment	8,247		5,285
Total	8,247	8,407	5,285	5,188	4,713	4,429
Loans
Individually evaluated for impairment	2,537		3,439
Acquired with credit impairment	1,211		215
Collectively evaluated for impairment	861,008		533,191
Total	864,756		536,845
Real Estate | Construction, Land Development and Farmland
Allowance for loan losses
Individually evaluated for impairment	0		17
Acquired with credit impairment	0		0
Collectively evaluated for impairment	1,955		2,632
Total	1,955	2,126	2,649	2,513	2,707	2,500
Loans
Individually evaluated for impairment	1,777		1,217
Acquired with credit impairment	787		813
Collectively evaluated for impairment	364,196		271,842
Total	366,760		273,872
Real Estate | 1-4 Family Residential
Allowance for loan losses
Individually evaluated for impairment	0		0
Acquired with credit impairment	0		0
Collectively evaluated for impairment	2,289		1,280
Total	2,289	1,454	1,280	1,383	1,455	1,333
Loans
Individually evaluated for impairment	1,687		1,536
Acquired with credit impairment	934		195
Collectively evaluated for impairment	332,109		225,798
Total	334,730		227,529
Real Estate | 1-4 Family HELOC
Allowance for loan losses
Individually evaluated for impairment	0		0
Acquired with credit impairment	0		0
Collectively evaluated for impairment	1,485		624
Total	1,485	975	624	704	686	656
Loans
Individually evaluated for impairment	316		374
Acquired with credit impairment	14		0
Collectively evaluated for impairment	101,162		95,854
Total	101,492		96,228
Consumer
Allowance for loan losses
Individually evaluated for impairment	0		0
Acquired with credit impairment	0		0
Collectively evaluated for impairment	826		177
Total	826	584	177	170	188	184
Loans
Individually evaluated for impairment	592		28
Acquired with credit impairment	1,330		0
Collectively evaluated for impairment	207,149		16,827
Total	209,071		16,855
Other
Allowance for loan losses
Individually evaluated for impairment	0		0
Acquired with credit impairment	0		0
Collectively evaluated for impairment	20		34
Total	20	$ 16	34	$ 34	$ 36	$ 39
Loans
Individually evaluated for impairment	0		0
Acquired with credit impairment	0		0
Collectively evaluated for impairment	8,259		13,180
Total	$ 8,259		$ 13,180

X

- Definition The balance of financing receivables that were acquired with a credit impairment. + References No definition available. + Details Name: rbnc_FinancingReceivableAcquiredWithCreditImpairment Namespace Prefix: rbnc_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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X

- Definition Represents loans acquired with a credit impairment for calculating the allowance for credit losses on the current period provision. + References No definition available. + Details Name: rbnc_FinancingReceivableAllowanceForCreditLossesAcquiredWithCreditImpairment Namespace Prefix: rbnc_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- References No definition available. + Details Name: us-gaap_FinancingReceivableAllowanceForCreditLossAdditionalInformationAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(2)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121599878&loc=SL82895884-210446 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details Name: us-gaap_FinancingReceivableAllowanceForCreditLosses Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details Name: us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details Name: us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1 Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details Name: us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition The balance of financing receivables that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details Name: us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Amount, before allowance for credit loss, of financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919230-210447 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448 + Details Name: us-gaap_NotesReceivableGross Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

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X

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X

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X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_ConstructionLandDevelopmentAndFarmlandMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_OneToFourFamilyResidentialMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_OneToFourFamilyHELOCMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivablePortfolioSegmentAxis=rbnc_OtherPortfolioSegmentMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.20.2

Loans and Allowance for Loan Losses - Narrative (Details)	2 Months Ended	3 Months Ended	9 Months Ended
	May 31, 2020 USD ($)	Sep. 30, 2020 USD ($) loan	Sep. 30, 2020 USD ($) loan	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans		$ 6,738,000	$ 6,738,000		$ 4,071,000
Recorded investment, 90 days past due and still accruing, Number of loans | loan		1	1		1
Recorded investment, 90 days past due and still accruing		$ 38,000	$ 38,000		$ 64,000
Modified loan amount		0		$ 0
CARES Act
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable modification amount	$ 530,700,000		21,800,000
Commercial, Industrial and Agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans		$ 791,000	$ 791,000		572,000
Number of loans | loan		893	893
SBA authorizations for PPP loans, amount			$ 83,000,000
Performing Financial Instruments
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans		$ 2,926,000	$ 2,926,000		$ 1,332,000

X

- Definition Coronavirus, Aid, Relief, And Economic Securities (CARES) Act, Loan Authorization, Amount + References No definition available. + Details Name: rbnc_CoronavirusAidReliefAndEconomicSecuritiesCARESActLoanAuthorizationAmount Namespace Prefix: rbnc_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Coronavirus, Aid, Relief, And Economic Securities (CARES) Act, Number of Loans + References No definition available. + Details Name: rbnc_CoronavirusAidReliefAndEconomicSecuritiesCARESActNumberOfLoans Namespace Prefix: rbnc_ Data Type: xbrli:integerItemType Balance Type: na Period Type: instant

X

- Definition Finance Receivables, 90 Days Or More Past Day, Still Accruing, Number Of Loans + References No definition available. + Details Name: rbnc_FinanceReceivables90DaysOrMorePastDayStillAccruingNumberOfLoans Namespace Prefix: rbnc_ Data Type: xbrli:integerItemType Balance Type: na Period Type: instant

X

- Definition Financing Receivable, Modification, Amount + References No definition available. + Details Name: rbnc_FinancingReceivableModificationAmount Namespace Prefix: rbnc_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_AccountsNotesAndLoansReceivableLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Amount of financing receivable 90 days or more past due and still accruing. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5111-111524 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448 + Details Name: us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of financing receivable on nonaccrual status. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5111-111524 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447 + Details Name: us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of financing receivable modified on trial basis. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524 + Details Name: us-gaap_LoanRestructuringTrialModificationsAmount Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Details Name: us-gaap_LoanRestructuringModificationNameAxis=rbnc_CARESActMember Namespace Prefix: Data Type: na Balance Type: Period Type:

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- Details Name: us-gaap_FinancialInstrumentPerformanceStatusAxis=us-gaap_PerformingFinancingReceivableMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.20.2

Loans and Allowance for Loan Losses - Summary of Non-accrual Loans by Class of Loan (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Financing Receivable, Nonaccrual [Line Items]
Non-accrual loans	$ 6,738	$ 4,071
Commercial, Industrial and Agricultural
Financing Receivable, Nonaccrual [Line Items]
Non-accrual loans	791	572
Real Estate | Multi-family and Commercial
Financing Receivable, Nonaccrual [Line Items]
Non-accrual loans	1,532	1,276
Real Estate | Construction, Land Development and Farmland
Financing Receivable, Nonaccrual [Line Items]
Non-accrual loans	1,100	555
Real Estate | 1-4 Family Residential
Financing Receivable, Nonaccrual [Line Items]
Non-accrual loans	1,591	1,344
Real Estate | 1-4 Family HELOC
Financing Receivable, Nonaccrual [Line Items]
Non-accrual loans	239	296
Consumer
Financing Receivable, Nonaccrual [Line Items]
Non-accrual loans	$ 1,485	$ 28

X

- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_FinancingReceivableNonaccrualStatusLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Amount of financing receivable on nonaccrual status. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5111-111524 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447 + Details Name: us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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X

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X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_OneToFourFamilyResidentialMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_OneToFourFamilyHELOCMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.20.2

Loans and Allowance for Loan Losses - Summary of Individually Impaired Loans by Class of Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	$ 19,021	$ 9,506
Recorded Investment with no Allowance for Loan Losses Recorded	11,621	7,651
Recorded Investment with Allowance for Loan Losses Recorded	905	1,320
Total Recorded Investment	12,526	8,971
Related Allowance for Loan Losses	764	772
Commercial, Industrial and Agricultural
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	2,575	1,154
Recorded Investment with no Allowance for Loan Losses Recorded	436	5
Recorded Investment with Allowance for Loan Losses Recorded	905	1,149
Total Recorded Investment	1,341	1,154
Related Allowance for Loan Losses	764	755
Real Estate | Multi-family and Commercial
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	5,837	3,746
Recorded Investment with no Allowance for Loan Losses Recorded	3,748	3,654
Recorded Investment with Allowance for Loan Losses Recorded	0	0
Total Recorded Investment	3,748	3,654
Related Allowance for Loan Losses	0	0
Real Estate | Construction, Land Development and Farmland
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	3,032	2,347
Recorded Investment with no Allowance for Loan Losses Recorded	2,564	1,859
Recorded Investment with Allowance for Loan Losses Recorded	0	171
Total Recorded Investment	2,564	2,030
Related Allowance for Loan Losses	0	17
Real Estate | 1-4 Family Residential
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	3,322	1,852
Recorded Investment with no Allowance for Loan Losses Recorded	2,621	1,731
Recorded Investment with Allowance for Loan Losses Recorded	0	0
Total Recorded Investment	2,621	1,731
Related Allowance for Loan Losses	0	0
Real Estate | 1-4 Family HELOC
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	436	376
Recorded Investment with no Allowance for Loan Losses Recorded	330	374
Recorded Investment with Allowance for Loan Losses Recorded	0	0
Total Recorded Investment	330	374
Related Allowance for Loan Losses	0	0
Consumer
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	3,819	31
Recorded Investment with no Allowance for Loan Losses Recorded	1,922	28
Recorded Investment with Allowance for Loan Losses Recorded	0	0
Total Recorded Investment	1,922	28
Related Allowance for Loan Losses	$ 0	$ 0

X

- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_FinancingReceivableImpairedLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953550-111524 + Details Name: us-gaap_ImpairedFinancingReceivableRecordedInvestment Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of allowance for credit losses related to recorded investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524 + Details Name: us-gaap_ImpairedFinancingReceivableRelatedAllowance Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524 + Details Name: us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of investment in impaired financing receivables for which there is no related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953550-111524 + Details Name: us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of investment in impaired financing receivables for which there is a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953550-111524 + Details Name: us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Details Name: us-gaap_FinancingReceivablePortfolioSegmentAxis=rbnc_CommercialIndustrialAndAgriculturalPortfolioSegmentMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_MultiFamilyAndCommercialMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_ConstructionLandDevelopmentAndFarmlandMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_OneToFourFamilyResidentialMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_OneToFourFamilyHELOCMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.20.2

Loans and Allowance for Loan Losses - Summary of Average Balances of Impaired Loans and Interest Income Recognized (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Financing Receivable, Impaired [Line Items]
Impaired loans with an allowance, Average Recorded Investment, Subtotal	$ 947	$ 2,631	$ 1,019	$ 1,568
Impaired loans with an allowance, Interest Income Recognized, Subtotal	6	112	32	343
Imparied loans with no allowance, Average Recorded Investment, Subtotal	13,369	8,378	11,039	7,862
Imparied loans with no allowance, Interest Income Recognized, Subtotal	255	103	808	436
Average Recorded Investment, Total	14,316	11,009	12,058	9,430
Interest Income Recognized, Total	261	215	840	779
Commercial, Industrial and Agricultural
Financing Receivable, Impaired [Line Items]
Impaired loans with an allowance, Average Recorded Investment, Subtotal	947	2,435	975	1,384
Impaired loans with an allowance, Interest Income Recognized, Subtotal	6	112	32	342
Imparied loans with no allowance, Average Recorded Investment, Subtotal	594	672	356	537
Imparied loans with no allowance, Interest Income Recognized, Subtotal	42	9	56	33
Real Estate | Multi-family and Commercial
Financing Receivable, Impaired [Line Items]
Impaired loans with an allowance, Average Recorded Investment, Subtotal	0	0	0	0
Impaired loans with an allowance, Interest Income Recognized, Subtotal	0	0	0	0
Imparied loans with no allowance, Average Recorded Investment, Subtotal	4,375	3,474	4,138	2,838
Imparied loans with no allowance, Interest Income Recognized, Subtotal	63	46	278	141
Real Estate | Construction, Land Development and Farmland
Financing Receivable, Impaired [Line Items]
Impaired loans with an allowance, Average Recorded Investment, Subtotal	0	172	43	172
Impaired loans with an allowance, Interest Income Recognized, Subtotal	0	0	0	0
Imparied loans with no allowance, Average Recorded Investment, Subtotal	2,949	1,797	2,471	2,399
Imparied loans with no allowance, Interest Income Recognized, Subtotal	28	21	115	168
Real Estate | 1-4 Family Residential
Financing Receivable, Impaired [Line Items]
Impaired loans with an allowance, Average Recorded Investment, Subtotal	0	0	0	0
Impaired loans with an allowance, Interest Income Recognized, Subtotal	0	0	0	0
Imparied loans with no allowance, Average Recorded Investment, Subtotal	3,002	2,124	2,631	1,924
Imparied loans with no allowance, Interest Income Recognized, Subtotal	54	26	154	88
Real Estate | 1-4 Family HELOC
Financing Receivable, Impaired [Line Items]
Impaired loans with an allowance, Average Recorded Investment, Subtotal	0	25	0	13
Impaired loans with an allowance, Interest Income Recognized, Subtotal	0	0	0	1
Imparied loans with no allowance, Average Recorded Investment, Subtotal	331	296	367	148
Imparied loans with no allowance, Interest Income Recognized, Subtotal	0	0	0	4
Consumer
Financing Receivable, Impaired [Line Items]
Impaired loans with an allowance, Average Recorded Investment, Subtotal	0	0	1	0
Impaired loans with an allowance, Interest Income Recognized, Subtotal	0	0	0	0
Imparied loans with no allowance, Average Recorded Investment, Subtotal	2,118	15	1,076	16
Imparied loans with no allowance, Interest Income Recognized, Subtotal	$ 68	$ 1	$ 205	$ 2

X

- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_FinancingReceivableImpairedLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5258-111524 + Details Name: us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524 + Details Name: us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition Amount of average investment of impaired financing receivables for which there is no related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5258-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524 + Details Name: us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Amount of interest income, recognized on accrual basis, on financing receivables that are recognized as impaired, for which there is no related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524 + Details Name: us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition Amount of average investment of impaired financing receivables for which there is a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5258-111524 + Details Name: us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Amount of interest income, recognized on accrual basis, on financing receivables, for which there is a related allowance for credit losses and are recognized as impaired. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524 + Details Name: us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_MultiFamilyAndCommercialMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_ConstructionLandDevelopmentAndFarmlandMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_OneToFourFamilyResidentialMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_OneToFourFamilyHELOCMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.20.2

Loans and Allowance for Loan Losses - Summary of Credit Quality Indicators by Class of Loan (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	$ 2,362,853	$ 1,410,024
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	2,345,934	1,395,885
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	3,729	3,901
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	13,190	10,238
Commercial, Industrial and Agricultural
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	477,785	245,515
Commercial, Industrial and Agricultural | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	474,199	241,089
Commercial, Industrial and Agricultural | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	1,534	2,382
Commercial, Industrial and Agricultural | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	2,052	2,044
Real Estate | 1-4 Family Residential
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	334,730	227,529
Real Estate | 1-4 Family Residential | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	331,930	225,809
Real Estate | 1-4 Family Residential | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	5	0
Real Estate | 1-4 Family Residential | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	2,795	1,720
Real Estate | 1-4 Family HELOC
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	101,492	96,228
Real Estate | 1-4 Family HELOC | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	101,176	95,678
Real Estate | 1-4 Family HELOC | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	0	0
Real Estate | 1-4 Family HELOC | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	316	550
Real Estate | Multi-family and Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	864,756	536,845
Real Estate | Multi-family and Commercial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	859,739	531,055
Real Estate | Multi-family and Commercial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	663	1,519
Real Estate | Multi-family and Commercial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	4,354	4,271
Real Estate | Construction, Land Development and Farmland
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	366,760	273,872
Real Estate | Construction, Land Development and Farmland | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	365,135	272,440
Real Estate | Construction, Land Development and Farmland | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	0	0
Real Estate | Construction, Land Development and Farmland | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	1,625	1,432
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	209,071	16,855
Consumer | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	207,016	16,634
Consumer | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	7	0
Consumer | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	2,048	221
Other
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	8,259	13,180
Other | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	6,739	13,180
Other | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	1,520	0
Other | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	$ 0	$ 0

X

- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_FinancingReceivableRecordedInvestmentLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Amount, before allowance for credit loss, of financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919230-210447 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448 + Details Name: us-gaap_NotesReceivableGross Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

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X

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X

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X

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X

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X

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X

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X

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X

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X

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v3.20.2

Loans and Allowance for Loan Losses - Summary of Past Due (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Financing Receivable, Past Due [Line Items]
Past due	$ 6,382	$ 3,682
Current	2,356,471	1,406,342
Total	2,362,853	1,410,024
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	1,614	1,358
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	1,995	266
Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	2,773	2,058
Commercial, Industrial and Agricultural
Financing Receivable, Past Due [Line Items]
Past due	631	655
Current	477,154	244,860
Total	477,785	245,515
Commercial, Industrial and Agricultural | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	219	79
Commercial, Industrial and Agricultural | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	0	4
Commercial, Industrial and Agricultural | Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	412	572
Real Estate | 1-4 Family Residential
Financing Receivable, Past Due [Line Items]
Past due	1,868	966
Current	332,862	226,563
Total	334,730	227,529
Real Estate | 1-4 Family Residential | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	1,006	501
Real Estate | 1-4 Family Residential | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	544	236
Real Estate | 1-4 Family Residential | Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	318	229
Real Estate | 1-4 Family HELOC
Financing Receivable, Past Due [Line Items]
Past due	198	296
Current	101,294	95,932
Total	101,492	96,228
Real Estate | 1-4 Family HELOC | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	0	0
Real Estate | 1-4 Family HELOC | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	0	0
Real Estate | 1-4 Family HELOC | Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	198	296
Real Estate | Multi-family and Commercial
Financing Receivable, Past Due [Line Items]
Past due	1,023	1,043
Current	863,733	535,802
Total	864,756	536,845
Real Estate | Multi-family and Commercial | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	0	485
Real Estate | Multi-family and Commercial | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	0	0
Real Estate | Multi-family and Commercial | Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	1,023	558
Real Estate | Construction, Land Development and Farmland
Financing Receivable, Past Due [Line Items]
Past due	889	594
Current	365,871	273,278
Total	366,760	273,872
Real Estate | Construction, Land Development and Farmland | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	0	255
Real Estate | Construction, Land Development and Farmland | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	684	0
Real Estate | Construction, Land Development and Farmland | Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	205	339
Consumer
Financing Receivable, Past Due [Line Items]
Past due	1,773	128
Current	207,298	16,727
Total	209,071	16,855
Consumer | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	389	38
Consumer | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	767	26
Consumer | Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	617	64
Other
Financing Receivable, Past Due [Line Items]
Past due	0	0
Current	8,259	13,180
Total	8,259	13,180
Other | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	0	0
Other | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	0	0
Other | Greater Than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Past due	$ 0	$ 0

X

- Definition Amount of financing receivable not past due. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953401-111524 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919253-210447 + Details Name: us-gaap_FinancingReceivableRecordedInvestmentCurrent Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of financing receivable past due. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919253-210447 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953401-111524 + Details Name: us-gaap_FinancingReceivableRecordedInvestmentPastDue Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Amount, before allowance for credit loss, of financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919230-210447 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448 + Details Name: us-gaap_NotesReceivableGross Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

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X

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X

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v3.20.2

Loans and Allowance for Loan Losses - Troubled Debt Restructurings (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2020 USD ($) security
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | security	3
Pre-Modification Outstanding Recorded Investments	$ 1,265
Post-Modification Outstanding Recorded Investments	$ 1,265
Commercial, Industrial and Agricultural
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | security	1
Pre-Modification Outstanding Recorded Investments	$ 150
Post-Modification Outstanding Recorded Investments	$ 150
Real Estate | Multi-family and Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | security	1
Pre-Modification Outstanding Recorded Investments	$ 721
Post-Modification Outstanding Recorded Investments	$ 721
Real Estate | 1-4 Family Residential
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | security	1
Pre-Modification Outstanding Recorded Investments	$ 394
Post-Modification Outstanding Recorded Investments	$ 394

X

- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_FinancingReceivableModificationsLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524 + Details Name: us-gaap_FinancingReceivableModificationsNumberOfContracts2 Namespace Prefix: us-gaap_ Data Type: xbrli:integerItemType Balance Type: na Period Type: duration

X

- Definition Amount, after troubled debt restructuring, of modified financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524 + Details Name: us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2 Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Amount, before troubled debt restructuring, of financing receivable to be modified. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524 + Details Name: us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2 Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

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X

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X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_OneToFourFamilyResidentialMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.20.2

Loans and Allowance for Loan Losses - Summary of Carrying Amount of Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total outstanding balance	$ 7,569	$ 1,469
Less remaining purchase discount	3,036	246
Allowance for loan losses	0	0
Carrying amount, net of allowance for loan losses and remaining purchase discounts	4,533	1,223
Commercial, Industrial and Agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total outstanding balance	989	0
Real Estate | Multi-family and Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total outstanding balance	2,243	217
Real Estate | Construction, Land Development and Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total outstanding balance	1,003	1,021
Real Estate | 1-4 Family Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total outstanding balance	1,211	231
Real Estate | 1-4 Family HELOC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total outstanding balance	18	0
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total outstanding balance	$ 2,105	$ 0

X

- Definition Amount of purchase discount related to loan loss not accounted for as debt securities, with evidence of deterioration of credit quality. + References No definition available. + Details Name: rbnc_PurchasedCreditImpairedLoansDiscount Namespace Prefix: rbnc_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_AccountsNotesAndLoansReceivableLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition The recorded balance, net of any applicable reductions (for example, unamortized accretable yield and allowance for loan losses). This relates to loans not accounted for debt securities with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121585399&loc=d3e13503-111538 + Details Name: us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition For loans and debt securities, 1) for which at acquisition it was probable that the investor would be unable to collect all contractually required payments receivable, and 2) for which it is further probable that the investor will not be able to collect all cash flows expected at acquisition (plus any additional cash flows expected due to changes in estimate after acquisition), the allowance for credit losses recorded to reflect the impairment since acquisition. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5275-111524 + Details Name: us-gaap_CertainLoansAndDebtSecuritiesAcquiredInTransferAllowanceForCreditLossesDueToSubsequentImpairment Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition The recorded amount of loans and debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it was probable, at acquisition, that the investor would be unable to collect all contractually required payments receivable. They are deemed to be impaired since the acquisition and an allowance for credit losses has been recorded. Disclosure is gross of the allowance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5275-111524 + Details Name: us-gaap_CertainLoansAndDebtSecuritiesAcquiredInTransferWithRelatedAllowanceForCreditLossesDueToSubsequentImpairment Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_OneToFourFamilyResidentialMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rbnc_OneToFourFamilyHELOCMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.20.2

Loans and Allowance for Loan Losses - Activity Related to Accretable Portion of Loans Acquired (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Beginning balance	$ 98	$ 110
New loans purchased	870	0
Year-to-date settlements	(137)	(12)
Ending balance	$ 831	$ 98

X

- Definition The aggregate excess of a loan's cash flows expected to be collected over the investor's initial investment in the loan for loans accounted for as debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121585399&loc=d3e13503-111538 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 + Details Name: us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYield Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Increases in the aggregate excess of a loan's cash flows expected to be collected over the investor's initial investment in the loan due to the acquisition of similar loans accounted for as debt securities during the period. This relates to loans accounted for as debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121585399&loc=d3e13503-111538 + Details Name: us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldAdditions Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Sale or transfer of a loan during the period resulting in a reduction in the excess of a loan's cash flows expected to be collected over the investor's initial investment. This relates to loans accounted for as debt securities, with evidence of deterioration of credit quality since origination that was acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121585399&loc=d3e13503-111538 + Details Name: us-gaap_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldDisposalsOfLoans Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details Name: us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldMovementScheduleRollForward Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

v3.20.2

Leases - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	Jan. 01, 2020
Leases [Abstract]
Accounting Standards Update [Extensible List]		us-gaap:AccountingStandardsUpdate201602Member		us-gaap:AccountingStandardsUpdate201602Member
Operating leases right of use assets		$ 14,619			$ 11,973
Operating leases liabilities		$ 15,756			$ 11,900
Discount rate					4.50%
Lease expense	$ 669		$ 2,039
Operating lease term of contract		5 years
Annual rental payments		$ 211
Base annual rental percentage increase		2.50%

X

- Definition Lessee, Operating Lease, Base Annual Rent + References No definition available. + Details Name: rbnc_LesseeOperatingLeaseBaseAnnualRent Namespace Prefix: rbnc_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition Operating Lease, Base Annual Rent, Percent Increase + References No definition available. + Details Name: rbnc_OperatingLeaseBaseAnnualRentPercentIncrease Namespace Prefix: rbnc_ Data Type: num:percentItemType Balance Type: na Period Type: instant

X

- Definition Indicates amendment to accounting standards. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (g)(1) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 10 -Section 65 -Paragraph 4 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-Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (g)(2)(iii) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 21: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 22: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 23: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 24: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794 Reference 25: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 10 -Section 65 -Paragraph 4 -Subparagraph (e)(4) -URI http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437 Reference 26: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 10 -Section 65 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437 Reference 27: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (g)(2) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 28: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (f)(1) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 29: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 10 -Section 65 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437 Reference 30: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (g)(2)(ii) -URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641 Reference 31: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 65 -Paragraph 8 -Subparagraph (d)(2) Reference 32: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 65 -Paragraph 8 -Subparagraph (d)(3) + Details Name: us-gaap_AccountingStandardsUpdateExtensibleList Namespace Prefix: us-gaap_ Data Type: srt-types:extensibleListItemType Balance Type: na Period Type: duration

X

- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details Name: us-gaap_LeaseAndRentalExpense Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- References No definition available. + Details Name: us-gaap_LeasesAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Discount rate used by lessee to determine present value of operating lease payments. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980 + Details Name: us-gaap_LesseeOperatingLeaseDiscountRate Namespace Prefix: us-gaap_ Data Type: num:percentItemType Balance Type: na Period Type: instant

X

- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980 + Details Name: us-gaap_LesseeOperatingLeaseTermOfContract Namespace Prefix: us-gaap_ Data Type: xbrli:durationItemType Balance Type: na Period Type: instant

X

- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details Name: us-gaap_OperatingLeaseLiability Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details Name: us-gaap_OperatingLeaseRightOfUseAsset Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

v3.20.2

Leases - Operating Lease and Liability (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jan. 01, 2020
Leases [Abstract]
Operating leases right of use assets	$ 14,619	$ 11,973
Operating leases liabilities	$ 15,756
Weighted average remaining lease term (in years)	6 years 1 month 20 days
Weighted average discount rate	4.34%

X

- References No definition available. + Details Name: us-gaap_LeasesAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details Name: us-gaap_OperatingLeaseLiabilityCurrent Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details Name: us-gaap_OperatingLeaseRightOfUseAsset Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Weighted average discount rate for operating lease calculated at point in time. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(4) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971 + Details Name: us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent Namespace Prefix: us-gaap_ Data Type: num:percentItemType Balance Type: na Period Type: instant

X

- Definition Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(3) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 + Details Name: us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1 Namespace Prefix: us-gaap_ Data Type: xbrli:durationItemType Balance Type: na Period Type: instant

v3.20.2

Leases - Components of Lease Expense Included in Occupancy Expenses (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020
Leases [Abstract]
Operating lease cost	$ 851	$ 2,333
Short-term lease cost	2	2
Variable lease cost	98	276
Total lease cost	$ 951	$ 2,611

X

- Definition Amount of lease cost recognized by lessee for lease contract. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971 + Details Name: us-gaap_LeaseCost Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- References No definition available. + Details Name: us-gaap_LeasesAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 + Details Name: us-gaap_OperatingLeaseCost Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Amount of short-term lease cost, excluding expense for lease with term of one month or less. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971 + Details Name: us-gaap_ShortTermLeaseCost Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971 + Details Name: us-gaap_VariableLeaseCost Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

v3.20.2

Leases - Maturities of Operating Lease Liability (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jan. 01, 2020
Lease payments due on or before
September 30, 2021	$ 3,155
September 30, 2022	2,755
September 30, 2023	2,716
September 30, 2024	2,703
September 30, 2025	2,372
Thereafter	4,289
Total undiscounted cash flows	17,990
Discount on cash flows	(2,234)
Total lease liability	$ 15,756	$ 11,900

X

- Definition Lessee, Operating Lease, Lease Not Yet Commenced, discounted Amount + References No definition available. + Details Name: rbnc_LesseeOperatingLeaseLeaseNotYetCommencedDiscountedAmount Namespace Prefix: rbnc_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Lessee, Operating Lease, Undiscounted Amount + References No definition available. + Details Name: rbnc_LesseeOperatingLeaseUndiscountedAmount Namespace Prefix: rbnc_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due after fifth rolling twelve months following latest statement of financial position date. For interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980 + Details Name: us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fifth rolling twelve months following latest statement of financial position date. For interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980 + Details Name: us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fourth rolling twelve months following latest statement of financial position date. For interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980 + Details Name: us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due in third rolling twelve months following latest statement of financial position date. For interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980 + Details Name: us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due in second rolling twelve months following latest statement of financial position date. For interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980 + Details Name: us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due in next rolling twelve months following latest statement of financial position date. For interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980 + Details Name: us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- References No definition available. + Details Name: us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details Name: us-gaap_OperatingLeaseLiability Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

v3.20.2

Derivatives - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivative [Line Items]
Gain (Loss) reclassified from accumulated other comprehensive income net	$ 0	$ 0	$ 0	$ 0
Cash Flow Hedging | Interest Rate Swap
Derivative [Line Items]
Notional amounts	$ 160,000,000		$ 160,000,000

X

- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_DerivativeLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 + Details Name: us-gaap_DerivativeNotionalAmount Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: na Period Type: instant

X

- Definition The amount of net gains or losses on interest rate cash flow hedges reclassified during the period to earnings from accumulated other comprehensive income upon the hedged transaction affecting earnings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959 + Details Name: us-gaap_InterestRateCashFlowHedgeGainLossReclassifiedToEarningsNet Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Details Name: us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.20.2

Derivatives - Interest Rate Swaps Designated as Cash Flow Hedges and Fair Value Hedges (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Interest Rate Swap
Derivative [Line Items]
Unrealized losses	$ 118,000	$ 20,000	$ 243,000	$ 21,000
Cash Flow Hedging | Interest Rate Swap
Derivative [Line Items]
Notional amounts	160,000,000		$ 160,000,000
Weighted average pay rates			2.05%
Weighted average receive rates			0.39%
Weighted average maturity			3 years 4 months 6 days
Unrealized losses for cash flow hedges	8,526,000		$ 8,526,000
Fair Value Hedging
Derivative [Line Items]
Notional amounts	$ 19,345,000		$ 19,345,000
Weighted average pay rates			3.51%
Weighted average receive rates			1.21%
Weighted average maturity			8 years 4 months 2 days
Unrealized losses			$ 1,690,000

X

- Definition Derivative, Weighted Average Interest Receive Rate + References No definition available. + Details Name: rbnc_DerivativeWeightedAverageInterestReceiveRate Namespace Prefix: rbnc_ Data Type: num:percentItemType Balance Type: na Period Type: duration

X

- Definition Derivative, Weighted Average Pay Rate + References No definition available. + Details Name: rbnc_DerivativeWeightedAveragePayRate Namespace Prefix: rbnc_ Data Type: num:percentItemType Balance Type: na Period Type: duration

X

- Definition Amount, after tax, of accumulated gain (loss) on derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e637-108580 + Details Name: us-gaap_AociLossCashFlowHedgeCumulativeGainLossAfterTax Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 25 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=121577467&loc=d3e76258-113986 + Details Name: us-gaap_ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1 Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition Average remaining period until maturity of the derivative contract, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details Name: us-gaap_DerivativeAverageRemainingMaturity1 Namespace Prefix: us-gaap_ Data Type: xbrli:durationItemType Balance Type: na Period Type: duration

X

- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_DerivativeLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 + Details Name: us-gaap_DerivativeNotionalAmount Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: na Period Type: instant

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- Details Name: us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember Namespace Prefix: Data Type: na Balance Type: Period Type:

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- Details Name: us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_FairValueHedgingMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.20.2

Derivatives - Cash Flow Hedges and Fair Value Hedges Included in the Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Cash Flow Hedging | Other Liabilities
Derivative [Line Items]
Derivative Liability, Notional Amount	$ 160,000	$ 110,000
Derivative Liability, Fair Value	(8,526)	(2,078)
Cash Flow Hedging | Subordinated debentures | Interest Rate Swap
Derivative [Line Items]
Derivative Liability, Notional Amount	10,000	10,000
Derivative Liability, Fair Value	(750)	(439)
Cash Flow Hedging | Federal Home Loan Bank borrowings | Interest Rate Swap
Derivative [Line Items]
Derivative Liability, Notional Amount	150,000	100,000
Derivative Liability, Fair Value	(7,776)	(1,639)
Fair Value Hedging | Other Liabilities
Derivative [Line Items]
Derivative Liability, Notional Amount	19,345	19,605
Derivative Liability, Fair Value	(1,690)	(630)
Fair Value Hedging | Other Liabilities | Interest Rate Swap
Derivative [Line Items]
Derivative Liability, Notional Amount	19,345	19,605
Derivative Liability, Fair Value	$ (1,690)	$ (630)

X

- Definition Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=121570589&loc=SL51823488-111719 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313 + Details Name: us-gaap_DerivativeFairValueOfDerivativeLiability Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Nominal or face amount used to calculate payments on the derivative liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 + Details Name: us-gaap_DerivativeLiabilityNotionalAmount Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: na Period Type: instant

X

- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_DerivativeLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Details Name: us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_BalanceSheetLocationAxis=us-gaap_OtherLiabilitiesMember Namespace Prefix: Data Type: na Balance Type: Period Type:

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- Details Name: us-gaap_BalanceSheetLocationAxis=us-gaap_SubordinatedDebtMember Namespace Prefix: Data Type: na Balance Type: Period Type:

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- Details Name: us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember Namespace Prefix: Data Type: na Balance Type: Period Type:

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- Details Name: us-gaap_BalanceSheetLocationAxis=rbnc_FederalHomeLoanBankConsolidatedObligationsMember Namespace Prefix: Data Type: na Balance Type: Period Type:

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- Details Name: us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_FairValueHedgingMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.20.2

Derivatives - Net Gains (Losses) Relating to Cash Flow Derivative Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income (Loss)	$ 375	$ (275)	$ (4,762)	$ (1,606)
Interest rate swaps-subordinate debentures
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income (Loss)	51	(42)	(230)	(264)
Interest rate swaps-interest-bearing liabilities | Interest Expense
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income (Loss)	$ 324	$ (233)	$ (4,532)	$ (1,342)

X

- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_DerivativeLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Amount, after tax and before reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e637-108580 + Details Name: us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Details Name: us-gaap_DerivativeInstrumentRiskAxis=rbnc_InterestRateSwapSubordinateDebenturesMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_DerivativeInstrumentRiskAxis=rbnc_InterestRateSwapInterestBearingLiabilitiesMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_IncomeStatementLocationAxis=us-gaap_InterestExpenseMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.20.2

Derivatives - Fair Value Hedges Included in the Consolidated Statements of Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivative [Line Items]
Change in unrealized gain (loss) on fair value hedging instruments	$ 118	$ 20	$ 243	$ 21
Interest Rate Swap
Derivative [Line Items]
Unrealized losses	$ (118)	$ (20)	$ (243)	$ (21)

X

- Definition Amount of gain (loss) from the increase (decrease) in fair value of derivative and nonderivative instruments designated as fair value hedging instruments recognized in the income statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 25 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=121577467&loc=d3e76258-113986 + Details Name: us-gaap_ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1 Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 25 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=121577467&loc=d3e76258-113986 + Details Name: us-gaap_ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge1 Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_DerivativeLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Details Name: us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.20.2

Stock-based Compensation - Narrative (Details) - USD ($) $ in Thousands		9 Months Ended
	Mar. 10, 2015	Sep. 30, 2020	Jun. 18, 2015	Dec. 31, 2006
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized future compensation expense related to stock options		$ 235
Equity Incentive Plan 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)			900,000
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise period for stock option awards	10 years
Unrecognized compensation cost, weighted-average period for recognition		3 years 29 days
Employee Stock Option | Commerce Union Bank Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)				625,000
Employee Stock Option | Commerce Union Bancshares, Inc. Amended and Restated Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)	1,250,000
Restricted Stock and Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost, weighted-average period for recognition		2 years 1 month 9 days
Unrecognized compensation cost, weighted-average period for recognition		$ 2,096
Fair value of share awards vested		$ 970

X

- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1 Namespace Prefix: us-gaap_ Data Type: xbrli:durationItemType Balance Type: na Period Type: duration

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- Definition Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Amount of cost to be recognized for option under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Number of shares authorized for issuance under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: instant

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- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod Namespace Prefix: us-gaap_ Data Type: xbrli:durationItemType Balance Type: na Period Type: duration

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X

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- Details Name: us-gaap_AwardTypeAxis=rbnc_RestrictedStockAndRestrictedStockUnitsMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.20.2

Stock-based Compensation - Expense and Employee Benefit Services (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Share-based Payment Arrangement [Abstract]
Stock-based compensation expense before income taxes	$ 349	$ 337	$ 1,183	$ 867
Less: deferred tax benefit	(91)	(88)	(309)	(227)
Reduction of net income	$ 258	$ 249	$ 874	$ 640

X

- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_AllocatedShareBasedCompensationExpense Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition Amount, after tax, of expense for award under share-based payment arrangement. + References No definition available. + Details Name: us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- References No definition available. + Details Name: us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Amount of tax benefit for recognition of expense of award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

v3.20.2

Stock-based Compensation - Stock Option Activity (Details) $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($) $ / shares shares
Shares
Outstanding, Beginning (in shares) | shares	149,293
Granted (in shares) | shares	0
Exercised (in shares) | shares	(6,544)
Forfeited or expired (in shares) | shares	(20,007)
Outstanding, Ending (in shares) | shares	122,742	149,293
Exercisable (in shares) | shares	83,042
Weighted Average Exercise Price
Outstanding, Beginning (in dollars per share) | $ / shares	$ 18.81
Granted (in dollars per share) | $ / shares	0
Exercised (in dollars per share) | $ / shares	12.03
Forfeited or expired (in dollars per share) | $ / shares	21.02
Outstanding, Ending (in dollars per share) | $ / shares	18.81	$ 18.81
Exercisable (in dollars per share) | $ / shares	$ 16.43
Weighted Average Remaining Contractual Term and Aggregate Intrinsic Value
Outstanding, Weighted Average Remaining Contractual Term	5 years 11 months 12 days	6 years 8 months 4 days
Exercised, Weighted Average Remaining Contractual Term
Exercisable, Weighted Average Remaining Contractual Term	5 years 10 days
Outstanding, Aggregate Intrinsic Value | $	$ 73	$ 553
Exercised, Aggregate Intrinsic Value | $	26
Exercisable, Aggregate Intrinsic Value | $	$ 73

X

- Definition Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Exercises In Period, Weighted Average Remaining Contractual Term + References No definition available. + Details Name: rbnc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageRemainingContractualTerm Namespace Prefix: rbnc_ Data Type: xbrli:durationItemType Balance Type: na Period Type: duration

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X

- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: instant

X

- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice Namespace Prefix: us-gaap_ Data Type: num:perShareItemType Balance Type: na Period Type: instant

X

- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: duration

X

- Definition Weighted average price of options that were either forfeited or expired. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice Namespace Prefix: us-gaap_ Data Type: num:perShareItemType Balance Type: na Period Type: duration

X

- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: duration

X

- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: instant

X

- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice Namespace Prefix: us-gaap_ Data Type: num:perShareItemType Balance Type: na Period Type: instant

X

- References No definition available. + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. + References No definition available. + Details Name: us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice Namespace Prefix: us-gaap_ Data Type: num:perShareItemType Balance Type: na Period Type: duration

X

- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. + References No definition available. + Details Name: us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice Namespace Prefix: us-gaap_ Data Type: num:perShareItemType Balance Type: na Period Type: duration

X

- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1 Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1 Namespace Prefix: us-gaap_ Data Type: xbrli:durationItemType Balance Type: na Period Type: duration

X

- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2 Namespace Prefix: us-gaap_ Data Type: xbrli:durationItemType Balance Type: na Period Type: duration

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- Definition Number of share options (or share units) exercised during the current period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 + Details Name: us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: duration

v3.20.2

Stock-based Compensation - Nonvested Stock Option Activity (Details)	9 Months Ended
	Sep. 30, 2020 $ / shares shares
Shares
Non-vested options, Beginning (in shares) | shares	74,600
Granted (in shares) | shares	0
Vested (in shares) | shares	(23,400)
Forfeited (in shares) | shares	(11,500)
Non-vested options, Ending (in shares) | shares	39,700
Weighted Average Grant-Date Fair Value
Non-vested options, beginning (in dollars per share) | $ / shares	$ 6.08
Granted (in dollars per share) | $ / shares	0
Vested (in dollars per share) | $ / shares	5.23
Forfeited (in dollars per share) | $ / shares	6.37
Non-vested options, ending (in dollars per share) | $ / shares	$ 6.56

X

- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: duration

X

- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue Namespace Prefix: us-gaap_ Data Type: num:perShareItemType Balance Type: na Period Type: duration

X

- Definition Number of non-vested options outstanding. + References No definition available. + Details Name: us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: instant

X

- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details Name: us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfSharesRollForward Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Number of non-vested options forfeited. + References No definition available. + Details Name: us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: duration

X

- Definition Weighted average grant-date fair value of non-vested options forfeited. + References No definition available. + Details Name: us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue Namespace Prefix: us-gaap_ Data Type: num:perShareItemType Balance Type: na Period Type: duration

X

- Definition Weighted average grant-date fair value of non-vested options outstanding. + References No definition available. + Details Name: us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue Namespace Prefix: us-gaap_ Data Type: num:perShareItemType Balance Type: na Period Type: instant

X

- References No definition available. + Details Name: us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Number of options vested. + References No definition available. + Details Name: us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: duration

X

- Definition Weighted average grant-date fair value of options vested. + References No definition available. + Details Name: us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue Namespace Prefix: us-gaap_ Data Type: num:perShareItemType Balance Type: na Period Type: duration

v3.20.2

Stock-based Compensation - Nonvested Restricted Stock Activity (Details)	9 Months Ended
	Sep. 30, 2020 $ / shares shares
Restricted Stock Units
Shares
Non-vested units/shares, Beginning (in shares) | shares	47,750
Granted (in shares) | shares	102,400
Vested (in shares) | shares	(12,500)
Forfeited (in shares) | shares	(2,000)
Non-vested units/shares, Ending (in shares) | shares	135,650
Weighted Average Grant-Date Fair Value
Non-vested units/shares, Beginning (in dollars per share) | $ / shares	$ 23.30
Granted (in dollars per share) | $ / shares	14.02
Vested (in dollars per share) | $ / shares	22.57
Forfeited (in dollars per share) | $ / shares	10.25
Non-vested units/shares, Ending (in dollars per share) | $ / shares	$ 16.55
Restricted Stock
Shares
Non-vested units/shares, Beginning (in shares) | shares	90,960
Granted (in shares) | shares	0
Vested (in shares) | shares	(48,550)
Forfeited (in shares) | shares	0
Non-vested units/shares, Ending (in shares) | shares	42,410
Weighted Average Grant-Date Fair Value
Non-vested units/shares, Beginning (in dollars per share) | $ / shares	$ 25.31
Granted (in dollars per share) | $ / shares	0
Vested (in dollars per share) | $ / shares	23.99
Forfeited (in dollars per share) | $ / shares
Non-vested units/shares, Ending (in dollars per share) | $ / shares	$ 26.82

X

- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: duration

X

- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue Namespace Prefix: us-gaap_ Data Type: num:perShareItemType Balance Type: na Period Type: duration

X

- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: duration

X

- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue Namespace Prefix: us-gaap_ Data Type: num:perShareItemType Balance Type: na Period Type: duration

X

- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: instant

X

- Definition Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue Namespace Prefix: us-gaap_ Data Type: num:perShareItemType Balance Type: na Period Type: instant

X

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X

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v3.20.2

Regulatory Capital Requirements (Details) $ in Thousands	Sep. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier I leverage	$ 253,534	$ 176,748
Tier I leverage, ratio	0.0872	0.0974
Tier I leverage, minimum required capital including capital conservation buffer	$ 116,300	$ 72,586
Tier I leverage, minimum required capital including capital conservation buffer, ratio	4.00%	4.00%
Tier I leverage, to be well capitalized under prompt corrective action provisions	$ 145,375	$ 90,733
Tier I leverage, to be well capitalized under prompt corrective action provisions, ratio	0.0500	0.0500
Common equity tier 1	$ 241,786	$ 165,063
Common equity tier 1, ratio	0.0977	0.1055
Common equity tier 1, minimum required capital including capital conservation buffer	$ 173,235	$ 109,520
Common equity tier 1, minimum required capital including capital conservation buffer, ratio	7.00%	7.00%
Common equity tier 1, to be well capitalized under prompt corrective action provisions	$ 160,861	$ 101,698
Common equity tier 1, to be well capitalized under prompt corrective action provisions, ratio	6.50%	6.50%
Tier I risk-based capital	$ 253,534	$ 176,748
Tier I risk-based capital, ratio	0.1025	0.1130
Tier I risk-based capital, minimum required capital including capital conservation buffer	$ 210,248	$ 132,952
Tier I risk-based capital, minimum required capital including capital conservation buffer, ratio	8.50%	8.50%
Tier I risk-based capital, to be well capitalized under prompt corrective action provisions	$ 197,880	$ 125,131
Tier I risk-based capital, to be well capitalized under prompt corrective action provisions, ratio	0.0800	0.0800
Total risk-based capital	$ 332,434	$ 249,751
Total risk-based capital, ratio	0.1344	0.1597
Total risk-based capital, minimum required capital including capital conservation buffer	$ 259,714	$ 164,207
Total risk-based capital, minimum required capital including capital conservation buffer, ratio	10.50%	10.50%
Total risk-based capital, to be well capitalized under prompt corrective action provisions	$ 247,347	$ 156,388
Total risk-based capital, to be well capitalized under prompt corrective action provisions, ratio	0.1000	0.1000
Reliant Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier I leverage	$ 304,376	$ 186,734
Tier I leverage, ratio	0.1048	0.1030
Tier I leverage, minimum required capital including capital conservation buffer	$ 116,174	$ 72,518
Tier I leverage, minimum required capital including capital conservation buffer, ratio	4.00%	4.00%
Tier I leverage, to be well capitalized under prompt corrective action provisions	$ 145,218	$ 90,648
Tier I leverage, to be well capitalized under prompt corrective action provisions, ratio	0.0500	0.0500
Common equity tier 1	$ 304,376	$ 186,734
Common equity tier 1, ratio	0.1233	0.1195
Common equity tier 1, minimum required capital including capital conservation buffer	$ 172,801	$ 109,384
Common equity tier 1, minimum required capital including capital conservation buffer, ratio	7.00%	7.00%
Common equity tier 1, to be well capitalized under prompt corrective action provisions	$ 160,458	$ 101,571
Common equity tier 1, to be well capitalized under prompt corrective action provisions, ratio	6.50%	6.50%
Tier I risk-based capital	$ 304,376	$ 186,734
Tier I risk-based capital, ratio	0.1233	0.1195
Tier I risk-based capital, minimum required capital including capital conservation buffer	$ 209,829	$ 132,823
Tier I risk-based capital, minimum required capital including capital conservation buffer, ratio	8.50%	8.50%
Tier I risk-based capital, to be well capitalized under prompt corrective action provisions	$ 197,486	$ 125,010
Tier I risk-based capital, to be well capitalized under prompt corrective action provisions, ratio	0.0800	0.0800
Total risk-based capital	$ 324,635	$ 199,737
Total risk-based capital, ratio	0.1315	0.1279
Total risk-based capital, minimum required capital including capital conservation buffer	$ 259,214	$ 163,975
Total risk-based capital, minimum required capital including capital conservation buffer, ratio	10.50%	10.50%
Total risk-based capital, to be well capitalized under prompt corrective action provisions	$ 246,871	$ 156,167
Total risk-based capital, to be well capitalized under prompt corrective action provisions, ratio	0.1000	0.1000

X

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- Definition Common Equity Tier 1, Capital Required for Capital Adequacy With Capital Conservation Buffer, Ratio + References No definition available. + Details Name: rbnc_CommonEquityTier1CapitalRequiredforCapitalAdequacyWithCapitalConservationBufferRatio Namespace Prefix: rbnc_ Data Type: num:percentItemType Balance Type: na Period Type: instant

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- Definition Common equity tier one capital required to be well capitalized divided by risk-weighted assets as defined in the regulations. + References No definition available. + Details Name: rbnc_CommonEquityTierOneCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets Namespace Prefix: rbnc_ Data Type: num:percentItemType Balance Type: na Period Type: instant

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- Definition Common Equity Tier One Capital Required for Capital Adequacy With Capital Conservation Buffer + References No definition available. + Details Name: rbnc_CommonEquityTierOneCapitalRequiredforCapitalAdequacyWithCapitalConservationBuffer Namespace Prefix: rbnc_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Tier One Leverage Capital Required for Capital Adequacy to Average Assets With Capital Conservation Buffer + References No definition available. + Details Name: rbnc_TierOneLeverageCapitalRequiredforCapitalAdequacytoAverageAssetsWithCapitalConservationBuffer Namespace Prefix: rbnc_ Data Type: num:percentItemType Balance Type: na Period Type: instant

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- Definition Tier One Risk Based Capital Required for Capital Adequacy With Capital Conservation Buffer + References No definition available. + Details Name: rbnc_TierOneRiskBasedCapitalRequiredforCapitalAdequacyWithCapitalConservationBuffer Namespace Prefix: rbnc_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets With Capital Conservation Buffer + References No definition available. + Details Name: rbnc_TierOneRiskBasedCapitalRequiredforCapitalAdequacytoRiskWeightedAssetsWithCapitalConservationBuffer Namespace Prefix: rbnc_ Data Type: num:percentItemType Balance Type: na Period Type: instant

X

- Definition Amount of total capital as defined by regulatory framework. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47304-110998 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47080-110998 + Details Name: us-gaap_Capital Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of minimum total risk-based capital categorized as well capitalized as defined by regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details Name: us-gaap_CapitalRequiredToBeWellCapitalized Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Ratio of minimum total risk-based capital to risk-weighted assets categorized as well capitalized as defined by regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details Name: us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets Namespace Prefix: us-gaap_ Data Type: xbrli:pureItemType Balance Type: na Period Type: instant

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- Definition Ratio of total risk-based capital to risk-weighted assets as defined by regulatory framework. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details Name: us-gaap_CapitalToRiskWeightedAssets Namespace Prefix: us-gaap_ Data Type: xbrli:pureItemType Balance Type: na Period Type: instant

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- Definition Amount of Common Equity Tier 1 risk-based capital as defined by regulatory framework. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details Name: us-gaap_CommonEquityTierOneCapital Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Ratio of Common Equity Tier 1 risk-based capital to risk-weighted assets as defined by regulatory framework. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details Name: us-gaap_CommonEquityTierOneCapitalRatio Namespace Prefix: us-gaap_ Data Type: xbrli:pureItemType Balance Type: na Period Type: instant

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- Definition Amount of minimum Common Equity Tier 1 risk-based capital categorized as well capitalized as defined by regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details Name: us-gaap_CommonEquityTierOneCapitalRequiredToBeWellCapitalized Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Amount of Tier 1 leverage capital as defined by regulatory framework. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details Name: us-gaap_TierOneLeverageCapital Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Ratio of minimum Tier 1 leverage capital to average assets categorized as well capitalized as defined by regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details Name: us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets Namespace Prefix: us-gaap_ Data Type: xbrli:pureItemType Balance Type: na Period Type: instant

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- Definition Ratio of Tier 1 capital to average assets as defined by regulatory framework. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details Name: us-gaap_TierOneLeverageCapitalToAverageAssets Namespace Prefix: us-gaap_ Data Type: xbrli:pureItemType Balance Type: na Period Type: instant

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- Definition Amount of Tier 1 risk-based capital as defined by regulatory framework. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details Name: us-gaap_TierOneRiskBasedCapital Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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v3.20.2

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Basic EPS Computation
Net income attributable to common shareholders	$ 11,531	$ 4,000	$ 19,186	$ 12,063
Weighted average common shares outstanding (in shares)	16,587,274	11,104,918	15,053,087	11,247,921
Basic earnings per common share (in dollars per share)	$ 0.70	$ 0.36	$ 1.27	$ 1.07
Diluted EPS Computation
Net income attributable to common shareholders	$ 11,531	$ 4,000	$ 19,186	$ 12,063
Dilutive effect of stock options, restricted stock shares and units and employee stock purchase plan (in shares)	62,399	72,449	67,616	66,445
Adjusted weighted average common shares outstanding (in shares)	16,649,673	11,177,367	15,120,703	11,314,366
Diluted earnings per common share (in dollars per share)	$ 0.69	$ 0.36	$ 1.27	$ 1.07

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- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=121326447&loc=d3e1707-109256 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 28A -URI http://asc.fasb.org/extlink&oid=121326447&loc=d3e1500-109256 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 23 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121326447&loc=d3e1757-109256 + Details Name: us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: duration

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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22595-107794 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121326447&loc=d3e1448-109256 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 11 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121326447&loc=d3e1377-109256 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 11 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 60B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121326447&loc=SL5780133-109256 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 10: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8924-108599 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22583-107794 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 + Details Name: us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 60B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121326447&loc=SL5780133-109256 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=121326447&loc=d3e1505-109256 + Details Name: us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=121326447&loc=d3e1505-109256 + Details Name: us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: duration

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v3.20.2

Fair Values of Assets and Liabilities - Schedule of Fair Value of Assets and Liabilities Measured on Recurring and Non-recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 273,893	$ 260,293
Other real estate	1,326	750
U. S. Treasury and other U. S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	12,117	59
State and municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	190,623	196,660
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	15,809	7,845
Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	40,376	37,761
Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	14,968	17,968
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		688
Derivative liabilities	10,216	3,396
Recurring | U. S. Treasury and other U. S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	12,117	59
Recurring | State and municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	190,623	196,660
Recurring | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	15,809	7,845
Recurring | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	40,376	37,761
Recurring | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	14,968	17,968
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0
Derivative liabilities	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | U. S. Treasury and other U. S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | State and municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		688
Derivative liabilities	10,216	3,396
Recurring | Significant Other Observable Inputs (Level 2) | U. S. Treasury and other U. S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	12,117	59
Recurring | Significant Other Observable Inputs (Level 2) | State and municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	190,623	196,660
Recurring | Significant Other Observable Inputs (Level 2) | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	15,809	7,845
Recurring | Significant Other Observable Inputs (Level 2) | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	40,376	37,761
Recurring | Significant Other Observable Inputs (Level 2) | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	14,968	17,968
Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0
Derivative liabilities	0	0
Recurring | Significant Unobservable Inputs (Level 3) | U. S. Treasury and other U. S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Recurring | Significant Unobservable Inputs (Level 3) | State and municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	141	553
Other real estate	1,326	750
Other repossessions	1,603	0
Nonrecurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Other real estate	0	0
Other repossessions	0	0
Nonrecurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Other real estate	0	0
Other repossessions	0	0
Nonrecurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	141	553
Other real estate	1,326	750
Other repossessions	$ 1,603	$ 0

X

- Definition Fair value portion of impaired loans. + References No definition available. + Details Name: rbnc_ImpairedLoansFairValue Namespace Prefix: rbnc_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121558606&loc=SL82898722-210454 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121553693&loc=d3e26610-111562 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563 + Details Name: us-gaap_AvailableForSaleSecuritiesDebtSecurities Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details Name: us-gaap_DerivativeAssets Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 + Details Name: us-gaap_DerivativeLiabilities Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Carrying amount as of the balance sheet date of assets other than real property that were received in full or partial satisfaction of a debt arrangement through foreclosure proceedings or defeasance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5162-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4437-111522 + Details Name: us-gaap_OtherForeclosedAssets Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Details Name: us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member Namespace Prefix: Data Type: na Balance Type: Period Type:

X

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v3.20.2

Fair Values of Assets and Liabilities - Summary of Quantitative Information of Assets Measured at Fair Value on Nonrecurring Basis by Utilized Level 3 Inputs (Details) - Estimated costs to sell - Range (Weighted Average) - Significant Unobservable Inputs (Level 3) - Nonrecurring	Sep. 30, 2020	Dec. 31, 2019
Appraisal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0.10	0.10
Other real estate	0.10	0.10
Third-party guidelines
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other repossessions	0.10	0.10

X

- Definition Impaired Loans, Measurement Input + References No definition available. + Details Name: rbnc_ImpairedLoansMeasurementInput Namespace Prefix: rbnc_ Data Type: xbrli:decimalItemType Balance Type: na Period Type: instant

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X

- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Value of input used to measure real estate owned by financial institution by financial institution which is not directly related to its business. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details Name: us-gaap_OtherRealEstateOwnedMeasurementInput Namespace Prefix: us-gaap_ Data Type: xbrli:decimalItemType Balance Type: na Period Type: instant

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v3.20.2

Fair Values of Assets and Liabilities - Estimated Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Carrying Amount
Financial assets
Cash and due from banks	$ 14,050	$ 7,953
Federal funds sold	12,273	52
Loans, net	2,338,064	1,397,374
Mortgage loans held for sale	99,587	37,476
Accrued interest receivable	14,615	7,188
Restricted equity securities	17,367	11,279
Financial liabilities
Deposits	2,565,502	1,584,453
Accrued interest payable	3,744	2,022
Subordinate debentures	70,389	70,883
Federal Home Loan Bank advances	40,555	10,737
Estimated Fair Value
Financial assets
Cash and due from banks	14,050	7,953
Federal funds sold	12,273	52
Loans, net	2,336,300	1,383,719
Mortgage loans held for sale	99,587	38,379
Accrued interest receivable	14,615	7,188
Restricted equity securities	17,367	11,279
Financial liabilities
Deposits	2,571,305	1,582,781
Accrued interest payable	3,744	2,022
Subordinate debentures	69,237	71,454
Federal Home Loan Bank advances	40,887	10,755
Estimated Fair Value | Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial assets
Cash and due from banks	14,050	7,953
Federal funds sold	0	0
Loans, net	0	0
Mortgage loans held for sale	0	0
Accrued interest receivable	0	0
Restricted equity securities	0	0
Financial liabilities
Deposits	0	0
Accrued interest payable	0	0
Subordinate debentures	0	0
Federal Home Loan Bank advances	0	0
Estimated Fair Value | Significant Other Observable Inputs (Level 2)
Financial assets
Cash and due from banks	0	0
Federal funds sold	12,273	52
Loans, net	0	0
Mortgage loans held for sale	99,587	38,379
Accrued interest receivable	14,615	7,188
Restricted equity securities	17,367	11,279
Financial liabilities
Deposits	0	0
Accrued interest payable	3,744	2,022
Subordinate debentures	0	0
Federal Home Loan Bank advances	0	0
Estimated Fair Value | Significant Unobservable Inputs (Level 3)
Financial assets
Cash and due from banks	0	0
Federal funds sold	0	0
Loans, net	2,336,300	1,383,719
Mortgage loans held for sale	0	0
Accrued interest receivable	0	0
Restricted equity securities	0	0
Financial liabilities
Deposits	2,571,305	1,582,781
Accrued interest payable	0	0
Subordinate debentures	69,237	71,454
Federal Home Loan Bank advances	$ 40,887	$ 10,755

X

- Definition Fair value portion of accrued interest payable. + References No definition available. + Details Name: rbnc_AccruedInterestPayableFairValue Namespace Prefix: rbnc_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Fair value portion of accrued interest receivable. + References No definition available. + Details Name: rbnc_AccruedInterestReceivableFairValue Namespace Prefix: rbnc_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- References No definition available. + Details Name: us-gaap_AssetsFairValueDisclosureAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details Name: us-gaap_CashAndCashEquivalentsFairValueDisclosure Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits. + References No definition available. + Details Name: us-gaap_DepositsFairValueDisclosure Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Fair value of subordinated debt obligations including, but not limited to, subordinated loan, subordinated bond, subordinated debenture or junior debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details Name: us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Fair value portion of federal funds sold and securities borrowed or purchased under agreements to resell. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(3)(a)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details Name: us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellFairValueDisclosure Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Fair value portion of borrowing from Federal Home Loan Bank (FHLBank). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(3)(a)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details Name: us-gaap_FederalHomeLoanBankBorrowingsFairValueDisclosure Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- References No definition available. + Details Name: us-gaap_LiabilitiesFairValueDisclosureAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2196772 + Details Name: us-gaap_LoansReceivableFairValueDisclosure Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Fair value portion of mortgage loans held-for-sale. + References No definition available. + Details Name: us-gaap_MortgagesHeldForSaleFairValueDisclosure Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition The aggregate value of all restricted investments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-12.6(c)) -URI http://asc.fasb.org/extlink&oid=120401592&loc=d3e611133-123010 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-12B(Footnote 11(c))) -URI http://asc.fasb.org/extlink&oid=120401592&loc=d3e611197-123010 + Details Name: us-gaap_RestrictedInvestmentsAtFairValue Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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v3.20.2

Segment Reporting - Narrative (Details)	9 Months Ended
	Sep. 30, 2020 segment
Segment Reporting [Abstract]
Number of reportable segments	2

X

- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599 + Details Name: us-gaap_NumberOfReportableSegments Namespace Prefix: us-gaap_ Data Type: xbrli:integerItemType Balance Type: na Period Type: duration

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- References No definition available. + Details Name: us-gaap_SegmentReportingAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

v3.20.2

Segment Reporting - Summary of Results of Operations for Company's Business Segments (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting Information [Line Items]
Net interest income	$ 30,537			$ 14,064			$ 77,610	$ 41,338
Provision for loan losses	1,500			606			7,400	806
Noninterest income	6,001			2,760			13,706	7,396
Noninterest expense (excluding merger expense)	20,255			12,748			55,301	38,617
Merger expenses	78			299			6,895	302
Income tax expense (benefit)	2,800			557			3,524	1,430
CONSOLIDATED NET INCOME	11,905	$ 7,480	$ (1,191)	2,614	$ 2,684	$ 2,281	18,196	7,579
Non controlling interest in net (income) loss of subsidiary	(374)			1,386			990	4,484
NET INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	11,531			4,000			19,186	12,063
Operating Segments | Commercial Banking
Segment Reporting Information [Line Items]
Net interest income	29,729			13,910			75,933	40,986
Provision for loan losses	1,500			606			7,400	806
Noninterest income	2,218			1,375			6,102	4,226
Noninterest expense (excluding merger expense)	16,065			9,726			44,961	30,300
Merger expenses	78			299			6,895	302
Income tax expense (benefit)	2,773			654			3,593	1,741
CONSOLIDATED NET INCOME	11,531			4,000			19,186	12,063
Non controlling interest in net (income) loss of subsidiary	0			0			0	0
NET INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	11,531			4,000			19,186	12,063
Operating Segments | Residential Mortgage Banking
Segment Reporting Information [Line Items]
Net interest income	808			154			1,677	352
Provision for loan losses	0			0			0	0
Noninterest income	3,797			1,377			7,601	3,187
Noninterest expense (excluding merger expense)	4,190			3,022			10,340	8,317
Merger expenses	0			0			0	0
Income tax expense (benefit)	27			(97)			(69)	(311)
CONSOLIDATED NET INCOME	388			(1,394)			(993)	(4,467)
Non controlling interest in net (income) loss of subsidiary	(388)			1,394			993	4,467
NET INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	0			0			0	0
Elimination Entries
Segment Reporting Information [Line Items]
Net interest income	0			0			0	0
Provision for loan losses	0			0			0	0
Noninterest income	(14)			8			3	(17)
Noninterest expense (excluding merger expense)	0			0			0	0
Merger expenses	0			0			0	0
Income tax expense (benefit)	0			0			0	0
CONSOLIDATED NET INCOME	(14)			8			3	(17)
Non controlling interest in net (income) loss of subsidiary	14			(8)			(3)	17
NET INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	$ 0			$ 0			$ 0	$ 0

X

- Definition Noninterest Expense, Excluding Acquisition Related Costs + References No definition available. + Details Name: rbnc_NoninterestExpenseExcludingAcquisitionRelatedCosts Namespace Prefix: rbnc_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=116868678&loc=d3e1043-128460 + Details Name: us-gaap_BusinessCombinationAcquisitionRelatedCosts Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I.7) -URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32672-109319 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22663-107794 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 20 -Section 45 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120385591&loc=d3e38679-109324 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(9)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22658-107794 + Details Name: us-gaap_IncomeTaxExpenseBenefit Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition The net amount of operating interest income (expense). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.10) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details Name: us-gaap_InterestIncomeExpenseNet Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669619-108580 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8924-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 11 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section 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v3.20.2

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 2,800	$ 557	$ 3,524	$ 1,430
Effective income tax rate	19.00%	17.60%	16.20%	15.90%

X

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v3.20.2

Business Combinations - Tennessee Community Bank Holdings TCB (Details) - USD ($)		9 Months Ended
	Jan. 01, 2020	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Business Acquisition [Line Items]
Common stock, par value (in dollars per share)		$ 1		$ 1
Cash settlement for Tennessee Community Bank Holdings, Inc. common stock		$ 8,500,000	$ 0
COMMON STOCK
Business Acquisition [Line Items]
Common stock, par value (in dollars per share)	$ 1.00
Business combination, shares issued per acquiree share (in shares)	0.769
Tennessee Community Bank Holdings
Business Acquisition [Line Items]
Common stock, par value (in dollars per share)	$ 1.00
Reliant Bancorp, Inc. common stock shares issued (in shares)	811,210
Cash settlement for Tennessee Community Bank Holdings, Inc. common stock	$ 18,073,000
Cash in lieu of fractional shares based on volume weighted average closing consecutive	22.36
Exercise of stock option	34.25
Aggregate consideration paid to holders of unexercised options	$ 430,000	$ 430,000
Tennessee Community Bank Holdings | COMMON STOCK
Business Acquisition [Line Items]
Business acquisition, share price (in dollars per share)	$ 17.13

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v3.20.2

Business Combinations - Financial Impact of Merger TCB (Details)		9 Months Ended
	Jan. 01, 2020 USD ($) $ / shares shares	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Calculation of Purchase Price
Cash settlement for Tennessee Community Bank Holdings, Inc. common stock ($17.13 per share)		$ 8,500,000	$ 0
Allocation of Purchase Price
Goodwill		51,506,000		$ 43,642,000
Tennessee Community Bank Holdings
Calculation of Purchase Price
Shares of Tennessee Community Bank Holdings, Inc. common stock outstanding as of January 1, 2020 (in shares) | shares	1,055,041
Exchange ratio for Reliant Bancorp, Inc. common stock	0.769
Reliant Bancorp, Inc. common stock shares issued (in shares) | shares	811,210
Reliant Bancorp, Inc. share price at January 1, 2020 (in dollars per share) | $ / shares	$ 22.24
Estimated value of Reliant Bancorp, Inc. shares issued	$ 18,041,000
Cash settlement for Tennessee Community Bank Holdings, Inc. common stock ($17.13 per share)	18,073,000
Cash settlement for Tennessee Community Bank Holdings, Inc.'s 26,450 outstanding stock options ($34.25 settlement price less weighted average exercise price of $18.00)	430,000	$ 430,000
Cash settlement for Reliant Bancorp, Inc. fractional shares ($22.36 per pro rata fractional share)	3,000
Estimated fair value of Tennessee Community Bank Holdings, Inc.	$ 36,547,000
Number of stock options settled (in shares) | shares	26,450
Exercise of stock option	$ 34.25
Stock options weighted average exercise price (in dollars per share) | $ / shares	$ 18.00
Cash in lieu of fractional shares based on volume weighted average closing consecutive	$ 22.36
Allocation of Purchase Price
Total consideration above	36,547,000
Cash and cash equivalents	11,026,000
Investment securities available for sale	56,336,000
Loans, net of unearned income	171,445,000
Accrued interest receivable	948,000
Premises and equipment	6,401,000
Cash surrender value of life insurance contracts	5,629,000
Restricted equity securities	909,000
Core deposit intangible	3,617,000
Other assets	833,000
Deposits	(210,538,000)
Deferred tax liability	(337,000)
Borrowings	(58,000)
FHLB advances	(13,102,000)
Other liabilities	(3,682,000)
Total fair value of net assets acquired	29,427,000
Goodwill	$ 7,120,000
COMMON STOCK | Tennessee Community Bank Holdings
Calculation of Purchase Price
Business acquisition, share price (in dollars per share) | $ / shares	$ 17.13

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v3.20.2

Business Combinations - First Advantage Bancorp FABK (Details) - USD ($) $ / shares in Units, $ in Thousands	Apr. 01, 2020	Sep. 30, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Common stock, par value (in dollars per share)		$ 1	$ 1
Common stock, shares outstanding (in shares)		16,634,572	11,206,254
First Advantage Bancorp
Business Acquisition [Line Items]
Common stock, par value (in dollars per share)	$ 0.01
Business combination, shares issued per acquiree share (in shares)	1.17
Business acquisition, share price (in dollars per share)	$ 3.00
Business combination, cash paid in lieu of fractional shares (in dollars per share)	11.74
Reliant Bancorp, Inc. share price at January 1, 2020 (in dollars per share)	$ 11.27
Common stock, shares outstanding (in shares)	3,935,165
Total consideration above	$ 64,094
Consideration transferred as price per share (in dollars per share)	$ 16.28

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v3.20.2

Business Combinations - Financial Impact of Merger FABK (Details)		9 Months Ended
	Apr. 01, 2020 USD ($) $ / shares shares	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Calculation of Purchase Price
Cash settlement for First Advantage Bancorp common stock ($3.00 per share)		$ 8,500,000	$ 0
Allocation of Purchase Price
Goodwill		$ 51,506,000		$ 43,642,000
First Advantage Bancorp
Calculation of Purchase Price
Shares of First Advantage Bancorp common stock outstanding as of April 1, 2020 (in shares) | shares	3,935,165
Conversion of restricted stock units to shares of common stock of First Advantage Bancorp as of April 1, 2020 (in shares) | shares	2,000
Total First Advantage Bancorp common stock outstanding as of April, 1, 2020 (in shares) | shares	3,937,165
Exchange ratio for Reliant Bancorp, Inc. common stock	1.17
Reliant Bancorp, Inc. common stock shares issued (in shares) | shares	4,606,483
Remove fractional shares (in shares) | shares	(64)
Reliant Bancorp, Inc. common stock shares issued (in shares) | shares	4,606,419
Reliant Bancorp, Inc. share price at April 1, 2020 (in dollars per share) | $ / shares	$ 11.27
Estimated value of Reliant Bancorp, Inc. shares issued	$ 51,914,000
Cash settlement for Reliant Bancorp, Inc. fractional shares ($11.74 per pro rata fractional share)	1,000
Cash settlement for First Advantage Bancorp common stock ($3.00 per share)	11,805,000
Cash settlement for First Advantage Bancorp restricted stock units ($3.00 per share)	6,000
Cash settlement for First Advantage Bancorp's 34,800 outstanding stock options ($30.00 settlement price less weighted average exercise price of $19.44)	368,000
Total consideration above	$ 64,094,000
Business combination, cash paid in lieu of fractional shares (in dollars per share) | $ / shares	$ 11.74
Business acquisition, share price (in dollars per share) | $ / shares	$ 3.00
Number of stock options settled (in shares) | shares	34,800
Exercise of stock option	$ 30.00
Stock options weighted average exercise price (in dollars per share) | $ / shares	$ 19.44
Allocation of Purchase Price
Total consideration above	$ 64,094,000
Cash and cash equivalents	11,159,000
Investment securities available for sale	35,970,000
Loans, net of unearned income	622,423,000
Mortgage loans held for sale, net	5,878,000
Premises and equipment	7,905,000
Deferred tax asset	6,024,000
Cash surrender value of life insurance contracts	14,776,000
Other real estate and repossessed assets	1,259,000
Core deposit intangible	2,280,000
Operating lease right-of-use assets	6,536,000
Other assets	10,934,000
Deposits	(608,690,000)
Borrowings	(35,962,000)
Operating lease liabilities	(6,536,000)
Other liabilities	(10,606,000)
Total fair value of net assets acquired	63,350,000
Goodwill	$ 744,000
First Advantage Bancorp | COMMON STOCK
Calculation of Purchase Price
Business acquisition, share price (in dollars per share) | $ / shares	$ 3.00
First Advantage Bancorp | Restricted Stock and Restricted Stock Units
Calculation of Purchase Price
Business acquisition, share price (in dollars per share) | $ / shares	$ 3.00

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v3.20.2

Business Combinations - Pro Forma (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Business Combinations [Abstract]
Revenue	$ 35,881	$ 29,478	$ 106,771	$ 86,217
Net interest income	29,880	25,232	85,741	74,835
Net income attributable to common shareholders	$ 11,117	$ 9,182	$ 17,715	$ 28,545

X

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