abtx-10q_20200331.htm

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 March 31, 2020

☐	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: 001-37585

Allegiance Bancshares, Inc.

(Exact name of registrant as specified in its charter)

Texas

26-3564100

(State or other jurisdiction

of incorporation or organization)

(I.R.S. Employer

Identification No.)

8847 West Sam Houston Parkway, N., Suite 200

Houston, Texas 77040

(Address of principal executive offices, including zip code)

(281) 894-3200

(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, par value, $1.00 per share

ABTX

NASDAQ Global Market

Securities registered pursuant to Section 12(g) of the Act: None

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 (§ 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, smaller reporting company or an emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting,” 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 ☒

As of April 29, 2020, the registrant had 20,402,965 shares common stock, $1.00 par value per share, outstanding.

ALLEGIANCE BANCSHARES, INC.

INDEX TO FORM 10-Q

March 31, 2020


PART I—FINANCIAL INFORMATION

Item 1.	Interim Consolidated Financial Statements	3
	Consolidated Balance Sheets (unaudited)	3
	Consolidated Statements of Income (unaudited)	4
	Consolidated Statements of Comprehensive Income (unaudited)	5
	Consolidated Statements of Changes in Shareholders' Equity (unaudited)	6
	Consolidated Statements of Cash Flows (unaudited)	7
	Condensed Notes to Interim Consolidated Financial Statements (unaudited)	8
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	34
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	56
Item 4.	Controls and Procedures	57

PART II—OTHER INFORMATION

Item 1.	Legal Proceedings	58
Item 1A.	Risk Factors	58
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	60
Item 3.	Defaults upon Senior Securities	60
Item 4.	Mine Safety Disclosures	60
Item 5.	Other Information	60
Item 6.	Exhibits	61
Signatures		62

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PART I—FINANCIAL INFORMATION

ITEM 1. INTERIM CONSOLIDATED FINANCIAL STATEMENTS

ALLEGIANCE BANCSHARES, INC.

CONSOLIDATED BALANCE SHEETS

(Unaudited)

	March 31,			December 31,
	2020			2019
	(Dollars in thousands, except share data)
ASSETS
Cash and due from banks	$	156,700		$	213,347
Interest-bearing deposits at other financial institutions		18,189			132,901
Total cash and cash equivalents		174,889			346,248
Available for sale securities, at fair value		508,250			372,545
Loans held for investment		3,955,546			3,915,310
Less: allowance for loan losses		(37,511	)		(29,438	)
Loans, net		3,918,035			3,885,872
Accrued interest receivable		17,203			15,468
Premises and equipment, net		66,798			66,790
Other real estate owned		12,617			8,337
Federal Home Loan Bank stock		12,798			6,242
Bank owned life insurance		27,255			27,104
Goodwill		223,642			223,642
Core deposit intangibles, net		20,886			21,876
Other assets		20,056			18,530
TOTAL ASSETS	$	5,002,429		$	4,992,654
LIABILITIES AND SHAREHOLDERS’ EQUITY
LIABILITIES:
Deposits:
Noninterest-bearing	$	1,217,532		$	1,252,232
Interest-bearing
Demand		341,524			367,278
Money market and savings		1,110,631			1,258,008
Certificates and other time		1,283,887			1,190,583
Total interest-bearing deposits		2,736,042			2,815,869
Total deposits		3,953,574			4,068,101
Accrued interest payable		3,821			4,326
Borrowed funds		190,506			75,503
Subordinated debt		107,930			107,799
Other liabilities		40,005			27,060
Total liabilities		4,295,836			4,282,789
COMMITMENTS AND CONTINGENCIES (See Note 13)
SHAREHOLDERS’ EQUITY:
Preferred stock, $1 par value; 1,000,000 shares authorized; no shares issued or outstanding		—			—
Common stock, $1 par value; 80,000,000 shares authorized; 20,355,120 shares issued and outstanding at March 31, 2020 and 20,523,816 shares issued and outstanding at December 31, 2019		20,355			20,524
Capital surplus		513,894			521,066
Retained earnings		164,858			163,375
Accumulated other comprehensive income		7,486			4,900
Total shareholders’ equity		706,593			709,865
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$	5,002,429		$	4,992,654

See condensed notes to interim consolidated financial statements.

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ALLEGIANCE BANCSHARES, INC.

CONSOLIDATED STATEMENTS OF INCOME

(Unaudited)

	Three Months Ended March 31,
	2020			2019
	(Dollars in thousands, except per share data)
INTEREST INCOME:
Loans, including fees	$	54,624		$	54,189
Securities:
Taxable		2,087			982
Tax-exempt		546			1,290
Deposits in other financial institutions		195			688
Total interest income		57,452			57,149
INTEREST EXPENSE:
Demand, money market and savings deposits		4,364			3,728
Certificates and other time deposits		6,084			6,256
Borrowed funds		506			1,827
Subordinated debt		1,473			735
Total interest expense		12,427			12,546
NET INTEREST INCOME		45,025			44,603
Provision for loan losses		10,990			1,002
Net interest income after provision for loan losses		34,035			43,601
NONINTEREST INCOME:
Nonsufficient funds fees		169			162
Service charges on deposit accounts		457			325
Gain on sale of securities		194			—
(Loss) gain on sale of other real estate and other repossessed assets		(69	)		1
Bank owned life insurance income		151			159
Rebate from correspondent bank		493			896
Other		1,330			1,746
Total noninterest income		2,725			3,289
NONINTEREST EXPENSE:
Salaries and employee benefits		19,781			19,684
Net occupancy and equipment		1,907			2,098
Depreciation		866			753
Data processing and software amortization		1,826			1,577
Professional fees		573			599
Regulatory assessments and FDIC insurance		632			728
Core deposit intangibles amortization		990			1,178
Communications		417			430
Advertising		521			704
Acquisition and merger-related expenses		—			1,173
Other		4,888			2,191
Total noninterest expense		32,401			31,115
INCOME BEFORE INCOME TAXES		4,359			15,775
Provision for income taxes		843			3,097
NET INCOME	$	3,516		$	12,678
EARNINGS PER SHARE:
Basic	$	0.17		$	0.58
Diluted	$	0.17		$	0.58
DIVIDENDS PER SHARE	$	0.10		$	—

See condensed notes to interim consolidated financial statements.

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ALLEGIANCE BANCSHARES, INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)

	Three Months Ended March 31,
	2020			2019
	(Dollars in thousands)
Net income	$	3,516		$	12,678
Other comprehensive income, before tax:
Unrealized gain on securities:
Change in unrealized holding gain on available for sale securities during the period		3,466			7,462
Reclassification of gain realized through the sale of securities		(194	)		—
Total other comprehensive income		3,272			7,462
Deferred tax expense related to other comprehensive income		(686	)		(1,559	)
Other comprehensive income, net of tax		2,586			5,903
Comprehensive income	$	6,102		$	18,581

See condensed notes to interim consolidated financial statements.

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ALLEGIANCE BANCSHARES, INC.

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY

(Unaudited)


													Accumulated
	Common Stock						Capital			Retained			Other Comprehensive			Total Shareholders’
	Shares			Amount			Surplus			Earnings			Income (Loss)			Equity
	(Dollars in thousands, except share data)
BALANCE AT DECEMBER 31, 2018		21,937,740		$	21,938		$	571,803		$	112,131		$	(2,888	)	$	702,984
Cumulative effect of change in accounting principle related to ASU 2017-08											(1,715	)					(1,715	)
Total shareholders' equity at beginning of period, as adjusted (See Note 1)		21,937,740			21,938			571,803			110,416			(2,888	)		701,269
Net income											12,678						12,678
Other comprehensive income														5,903			5,903
Common stock issued in connection with the exercise of stock options and restricted stock awards		32,647			32			632									664
Repurchase of common stock		(486,415	)		(486	)		(16,858	)								(17,344	)
Stock based compensation expense								607									607
BALANCE AT MARCH 31, 2019		21,483,972		$	21,484		$	556,184		$	123,094		$	3,015		$	703,777

BALANCE AT DECEMBER 31, 2019		20,523,816		$	20,524		$	521,066		$	163,375		$	4,900		$	709,865
Net income											3,516						3,516
Other comprehensive income														2,586			2,586
Cash dividends declared, $0.10 per share											(2,033	)					(2,033	)
Common stock issued in connection with the exercise of stock options and restricted stock awards		75,638			75			1,082									1,157
Repurchase of common stock		(244,334	)		(244	)		(9,058	)								(9,302	)
Stock based compensation expense								804									804
BALANCE AT MARCH 31, 2020		20,355,120		$	20,355		$	513,894		$	164,858		$	7,486		$	706,593

See condensed notes to interim consolidated financial statements.

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ALLEGIANCE BANCSHARES, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

	Three Months Ended March 31,
	2020			2019
	(Dollars in thousands)
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	3,516		$	12,678
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and core deposit intangibles amortization		1,856			1,931
Provision for loan losses		10,990			1,002
Deferred income tax (benefit) expense		(2,250	)		40
Net amortization of premium on investments		506			934
Excess tax benefit from stock based compensation		(25	)		(420	)
Bank owned life insurance income		(151	)		(159	)
Net accretion of discount on loans		(1,149	)		(2,678	)
Net amortization of discount on subordinated debt		28			28
Net accretion of discount on certificates of deposit		(110	)		(287	)
Loss (gain) on sale or write-downs of other real estate and other repossessed assets		2,283			(1	)
Net gain on sale of securities		(194	)		—
Federal Home Loan Bank stock dividends		(71	)		(58	)
Stock based compensation expense		804			607
Net change in operating leases		636			11
(Increase) decrease in accrued interest receivable and other assets		(4,141	)		2,177
(Decrease) Increase in accrued interest payable and other liabilities		(2,118	)		3,820
Net cash provided by operating activities		10,410			19,625
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from maturities and principal paydowns of available for sale securities		164,575			554,829
Proceeds from sales of available for sale securities		29,735			—
Purchase of available for sale securities		(309,922	)		(558,438	)
Net change in total loans		(49,052	)		(51,357	)
Purchase of bank premises and equipment		(1,510	)		(415	)
Proceeds from sale of bank premises, equipment and other real estate		485			—
Net purchases of Federal Home Loan Bank stock		(6,485	)		(3,366	)
Net cash paid for the LoweryBank branch acquisition		—			(32,867	)
Net cash used in investing activities		(172,174	)		(91,614	)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net decrease in noninterest-bearing deposits		(34,700	)		(41,260	)
Net (decrease) increase in interest-bearing deposits		(79,717	)		143,323
Net change in other borrowed funds		100,000			(23,498	)
Net increase in borrowings under credit agreement		15,000			—
Dividends paid to common shareholders		(2,033	)		—
Proceeds from the issuance of common stock, stock option exercises and the ESPP		1,157			664
Repurchase of common stock		(9,302	)		(17,344	)
Net cash (used in) provided by financing activities		(9,595	)		61,885
NET CHANGE IN CASH AND CASH EQUIVALENTS		(171,359	)		(10,104	)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD		346,248			268,947
CASH AND CASH EQUIVALENTS, END OF PERIOD	$	174,889		$	258,843
SUPPLEMENTAL CASH FLOW INFORMATION:
Income taxes paid	$	—		$	—
Interest paid		12,932			10,847
Cash paid for operating lease liabilities		817			931
SUPPLEMENTAL NONCASH DISCLOSURE:
Lease right-of-use asset obtained in exchange for lessee operating lease liabilities	$	—		$	15,266
Loans transferred to other real estate		4,280			522
Other real estate transferred to loans		1,615			—
Security trades not yet settled		16,939			—

See condensed notes to interim consolidated financial statements.

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ALLEGIANCE BANCSHARES, INC.

CONDENSED NOTES TO INTERIM CONSOLIDATED FINANCIAL STATEMENTS

March 31, 2020

(Unaudited)

1. NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING AND REPORTING POLICIES

Nature of Operations-Allegiance Bancshares, Inc. (“Allegiance”) and its wholly-owned subsidiary, Allegiance Bank, (the “Bank”, and together with Allegiance, collectively referred to as the “Company”) provide commercial and retail loans and commercial banking services. The Company derives substantially all of its revenues and income from the operation of the Bank. The Company is focused on delivering a wide variety of relationship-driven commercial banking products and community-oriented services tailored to meet the needs of small to medium-sized businesses, professionals and individual customers. The Company operated 27 full-service bank offices in the Houston region, which it defines as the Houston-The Woodlands-Sugar Land and Beaumont-Port Arthur metropolitan statistical areas, with 26 bank offices and one loan production office in the Houston metropolitan area and one bank office location in Beaumont, just outside of the Houston metropolitan area as of March 31, 2020. The Bank provides its customers with a variety of banking services including checking accounts, savings accounts and certificates of deposit, and its primary lending products are commercial, personal, automobile, mortgage and home improvement loans. The Bank also offers safe deposit boxes, automated teller machines, drive-through services and 24-hour depository facilities.

Basis of Presentation-The accompanying unaudited condensed consolidated financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial information and in accordance with guidance provided by the Securities and Exchange Commission. Accordingly, the condensed consolidated financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates.

In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments considered necessary for a fair presentation of the financial position, results of operations and cash flows of the Company on a consolidated basis, and all such adjustments are of a normal recurring nature. Transactions between the Company and the Bank have been eliminated. The condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and footnotes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2019. Operating results for the three months ended March 31, 2020 are not necessarily indicative of the results that may be expected for the year ending December 31, 2020.

Risks and Uncertainties

The coronavirus (COVID-19) pandemic has negatively impacted the global economy, disrupted global supply chains and increased unemployment levels. The resulting temporary closure of many businesses and the implementation of social distancing and sheltering-in-place policies has and may continue to impact many of the Company’s customers. While the full effects of the pandemic remain unknown, the Company is committed to supporting its customers, employees and communities during this difficult time. The Company has given hardship relief assistance to customers, including the consideration of various loan payment deferral and fee waiver options, and encourages customers to reach out for assistance to support their individual circumstances.

On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (CARES Act) was signed by the President of the United States. Certain provisions within the CARES Act encourage financial institutions to practice prudent efforts to work with borrowers impacted by COVID-19. Under these provisions, modifications deemed to be COVID-19-related would not be considered a troubled debt restructuring (“TDR”) if the loan was not more than 30 days past due as of December 31, 2019 and the deferral was executed between March 1, 2020 and the earlier of 60 days after the date of termination of the COVID-19 national emergency or December 31, 2020. The banking regulators issued similar guidance, which also clarified that a COVID-19-related modification should not be considered a TDR if the borrower was current on payments at the time the underlying loan modification program was implemented and if the modification is considered to be short-term. Under these terms, as of March 31, 2020, the Company had processed payment deferrals for 395 loans with an aggregate loan balance of $203.8 million. Through April 26, 2020, the number of deferrals increased to 1,563 with an aggregate loan balance of $838.1 million, with substantially all considered performing at the time of deferral. These deferrals were generally no more than 90 days in duration.

Additionally, the Bank is a lender for the Small Business Administration's (“SBA”) Paycheck Protection Program ("PPP"), a program under the CARES Act, and other SBA, Federal Reserve or United States Treasury programs that have been created in response to the pandemic and may be a lender for programs created in the future. These programs are new and their effects on the Company’s business are uncertain. Through April 26, 2020, the Company had approved more than 3,500 PPP loans in excess of $640 million under the allocation approved by Congress.

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The Company identified several loan portfolio categories that it considered to be most “at-risk” from the COVID-19 pandemic, such as, oil and gas, hotel, and restaurants and bars with outstanding loan balances of $80.7 million, $133.0 million and $101.3 million at March 31, 2020, respectively. The Company’s exposure to the oil and gas industry is minimal as it does not participate in exploration and production or reserve-based lending; however, this industry is vital to the Houston region and the indirect effects could be significant. The Company considers these “at-risk” portfolios to be the most vulnerable to financial difficulties and risks from business disruptions caused by the pandemic spread mitigation efforts. Due to the uncertainty in the economy and unemployment from COVID-19 and the sharp reduction in crude oil prices, the impact could extend to the Company’s securities portfolio, income taxes, other real estate owned and goodwill and intangibles among other items, although the impact is dependent on future events which are highly uncertain and cannot be predicted at this time.

In a period of economic contraction, additional loan losses and lost interest income may occur, either in the industries previously noted or others to which the Company has exposure. The Company continues to accrue interest on loans modified under the new accounting standards. To the extent those borrowers are unable to resume normal contractual payments, the Company could experience additional losses of principal and interest.

Significant Accounting and Reporting Policies

The Company’s significant accounting and reporting policies can be found in Note 1 of the Company’s annual financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2019.

New Accounting Standards

Adoption of New Accounting Standards

ASC 310-40, “Receivables – Troubled Debt Restructurings by Creditors,” (“ASC 310-40”), a restructuring of debt constitutes a troubled debt restructuring (“TDR”) if the creditor, for economic or legal reasons related to the debtor’s financial difficulties, grants a concession to the debtor that it would not otherwise consider. In response to COVID-19, new guidance was issued that complies with GAAP whereby, subject to certain restrictions, loan modifications may not be subject to classification as TDRs. Through April 26, 2020, the Company granted deferrals on 1,563 loans with an aggregate loan balance of $838.1 million. Borrowers considered current are those that are less than 30 days past due on their contractual payments at the time a modification program is implemented. This interagency guidance is expected to have an impact on the Company’s financial statements.

ASU 2018-13, “Fair Value Measurement (Topic 820). – Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement.” ASU 2018-13 modifies the disclosure requirements on fair value measurements in Topic 820. The amendments in ASU 2018-13 remove disclosures that no longer are considered cost beneficial, modify/clarify the specific requirements of certain disclosures and add disclosure requirements identified as relevant. ASU 2018-13 became effective for the Company on January 1, 2020 and did not have a significant impact on the Company’s financial statements.

ASU No. 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 became effective for the Company on January 1, 2020, with earlier adoption permitted and is not expected to have a significant impact on the Company's financial statements.

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assessing impairment. The election of the hindsight practical expedient resulted in longer lease terms for a limited number of strategic locations based on relevant factors as of the adoption date. The Company implemented a lease management system to assist in centralizing, maintaining and accounting for all leases to ensure the Company meets the ASU’s reporting and disclosure requirements. Prior comparable periods are presented in accordance with previous guidance under Accounting Standards Codification (ASC) 840, “Leases.” See Note 6 – Leases for further information regarding the Company’s leases on certain properties and equipment under operating leases.

ASU 2017-08, “Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20) - Premium Amortization on Purchased Callable Debt Securities.” ASU 2017-08 shortens the amortization period for certain callable debt securities held at a premium to require such premiums to be amortized to the earliest call date unless applicable guidance related to certain pools of securities is applied to consider estimated prepayments. Under prior guidance, entities were generally required to amortize premiums on individual, non-pooled callable debt securities as a yield adjustment over the contractual life of the security. ASU 2017-08 does not change the accounting for callable debt securities held at a discount. ASU 2017-08 became effective for the Company on January 1, 2019. Upon adoption, the Company recognized a cumulative effect reduction in retained earnings totaling $1.7 million.

Newly Issued But Not Yet Effective Accounting Standards

ASU 2016-13, “Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” Among other things, ASU 2016-13 (“CECL”) 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. Financial institutions and other organizations will now use forward-looking information to better form their credit loss estimates. Many of the loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. In addition, CECL amends the accounting for credit losses on available for sale debt securities and purchased financial assets with credit deterioration. CECL became effective for the Company on January 1, 2020 using the modified retrospective approach; however, the CARES Act, signed by the President of the United States on March 27, 2020 includes an option for entities to delay the implementation of ASU 2016-13 until the earlier of the termination date of the national emergency declaration by the President or December 31, 2020. The Company expects to adopt CECL as of January 1, 2020 after the deferral period ends. Due to the uncertainty of the impact of COVID-19 and the sharp decline in crude oil prices, which can be impactful to the Houston market, the Company has delayed its implementation of CECL and has calculated and recorded its provision for loan losses under the incurred loss model that existed prior to ASU 2016-13. The Company will continue to perform and enhance CECL model operations parallel with the incurred loss model throughout 2020, or until adoption.

ASU 2019-12, “Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes” to simplify various aspects of the current guidance to promote consistent application of the standard among reporting entities by moving certain exceptions to the general principles. The amendment is effective for fiscal years beginning after December 15, 2020, with early adoption permitted. ASU 2019-12 will be become effective for the Company on January 1, 2021 and is not expected to have a significant impact on the Company’s financial statements.

2. ACQUISITIONS

Acquisitions are accounted for using the acquisition method of accounting. Accordingly, the assets and liabilities of an acquired entity are recorded at their fair value at the acquisition date. The excess of the purchase price over the estimated fair value of the net assets is recorded as goodwill. The results of operations for an acquisition have been included in the Company’s consolidated financial results beginning on the respective acquisition date.

The measurement period for the Company to determine the fair values of acquired identifiable assets and assumed liabilities will end at the earlier of (1) twelve months from the date of the acquisition or (2) as soon as the Company receives the information it was seeking about facts and circumstances that existed as of the acquisition date or learns that more information is not obtainable. The following acquisitions were completed on the dates indicated below:

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2018 Acquisition

Acquisition of Post Oak Bancshares, Inc.—On October 1, 2018, the Company completed the acquisition of Post Oak Bancshares, Inc. (“Post Oak”) and its wholly-owned subsidiary Post Oak Bank, N.A. headquartered in Houston, Texas. Post Oak operated thirteen bank offices, twelve located throughout the greater Houston metropolitan area and one in Beaumont, just outside of the Houston metropolitan area. The Company acquired Post Oak to further expand its Houston, Texas area market. Goodwill resulted from a combination of expected operational synergies and an enhanced branching network. Goodwill is not expected to be deductible for tax purposes.

Pursuant to the merger agreement, the Company issued 8,402,010 shares of Company common stock for all outstanding shares of Post Oak common stock and paid $21 thousand in cash for any fractional shares held by Post Oak shareholders. Additionally, all outstanding Post Oak options were assumed by Allegiance and converted using the 0.7017 exchange ratio to 299,352 options at a weighted average exercise price of $12.83 per option. Based on the $41.70 per share closing price of Allegiance common stock on September 28, 2018, the total transaction value was approximately $359.0 million. The acquisition was accounted for under the acquisition method of accounting in accordance with ASC Topic 805, Business Combinations. The Company recognized goodwill of $183.7 million which is calculated as the excess of both the consideration exchanged and liabilities assumed as compared to the fair value of identifiable assets acquired, none of which is expected to be deductible for tax purposes. The intangible assets recognized in the transaction are amortized utilizing an accelerated method over their ten year estimated useful lives.

As of September 30, 2019, the Company finalized its valuation of all assets and liabilities acquired. A summary of the purchase price allocation is as follows (in thousands):

Fair value of consideration paid:
Common shares issued (8,402,010 shares)	$	350,364
Stock options issued (299,352)		8,639
Cash in lieu of fractional shares		21
Total consideration paid	$	359,024

Fair value of assets acquired:
Cash and cash equivalents	$	230,416
Investment securities		42,779
Loans		1,164,281
Premises and equipment		21,988
Core deposit intangibles		25,128
Other assets		18,076
Total assets acquired	$	1,502,668

Fair value of liabilities assumed:
Deposits	$	1,291,310
Other borrowed funds		30,000
Other liabilities		6,070
Total liabilities assumed		1,327,380
Fair value of net assets acquired	$	175,288
Goodwill resulting from acquisition	$	183,736

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The fair value of net assets acquired includes fair value adjustments to certain acquired loans that were not considered impaired as of the acquisition date. The fair value adjustments were determined using discounted contractual cash flows. The following presents details of all loans acquired as of October 1, 2018:

	Contractual Balance		Fair Value		Discount
	(Dollars in thousands)
Commercial and industrial	$	221,098	$	217,204	$	(3,894	)
Real estate:
Commercial real estate (including multi-family residential)		450,947		443,512		(7,435	)
Commercial real estate construction and land development		167,386		165,387		(1,999	)
1-4 family residential (including home equity)		288,304		285,099		(3,205	)
Residential construction		23,812		23,812		—
Consumer and other		29,684		29,267		(417	)
Total loans	$	1,181,231	$	1,164,281	$	(16,950	)

In connection with the Post Oak acquisition, the Company acquired loans both with and without evidence of credit quality deterioration since origination. The acquired loans were initially recorded at fair value with no carryover of any allowance for loan losses. Acquired loans were segregated between those considered to be purchased credit impaired (“PCI”) loans and those without credit impairment at acquisition.

The Company incurred approximately $1.7 million and $1.3 million of pre-tax acquisition and merger-related expenses reflected on the Company’s income statement during the years ended December 31, 2018 and 2019, respectively, related to the Post Oak acquisition.

2019 Acquisition

Acquisition of LoweryBank Branch—On February 1, 2019, the Bank completed the acquisition of LoweryBank, the Sugar Land location of Huntington State Bank. The Bank paid $32.9 million in cash to acquire certain assets which included approximately $45.0 million in loans and assumed approximately $16.0 million in customer deposits. The Bank consolidated its existing Sugar Land bank office into this new bank office location, which was less than one mile away. The acquisition of LoweryBank was accounted for under the acquisition method of accounting in accordance with ASC Topic 805, Business Combinations. The Company recognized goodwill of $578 thousand which is calculated as the excess of both the consideration exchanged and liabilities assumed as compared to the fair value of identifiable assets acquired, which is expected to be deductible for tax purposes. Income and expense generated from acquired assets and liabilities assumed would not have a material impact; therefore, proforma numbers are not presented.

3. GOODWILL AND CORE DEPOSIT INTANGIBLE ASSETS

Changes in the carrying amount of the Company’s goodwill and core deposit intangible assets were as follows:

				Core Deposit
	Goodwill			Intangibles
	(Dollars in thousands)
Balance as of December 31, 2018	$	223,125		$	26,587
Acquisition of LoweryBank branch		578			—
Measurement period adjustment		(61	)		—
Amortization		—			(4,711	)
Balance as of December 31, 2019		223,642			21,876
Amortization		—			(990	)
Balance as of March 31, 2020	$	223,642		$	20,886

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Goodwill is recorded on the acquisition date of an entity. During the measurement period, the Company may record subsequent adjustments to goodwill for provisional amounts recorded at the acquisition date. There was a $61 thousand measurement period adjustment recorded during the first quarter 2019 related to the Post Oak Bank acquisition.

Management performs an evaluation annually, and more frequently if a triggering event occurs, of whether any impairment of the goodwill and other intangible assets has occurred. If any such impairment is determined, a write-down is recorded. While the Company’s stock was trading above book value for most of the first quarter of 2020, it did decline at the end of the quarter. Although management did not deem this to be a sustained decline in the Company’s stock price at March 31, 2020, it performed an impairment analysis concluding it is more likely than not the fair value exceeded the carrying amount. In the event that the Company concludes that all or a portion of its goodwill is impaired, a non-cash charge for the amount of such impairment would be recorded to earnings. Such a charge would have no impact on tangible capital or regulatory capital.

The estimated aggregate future amortization expense for core deposit intangible assets remaining as of March 31, 2020 is as follows (dollars in thousands):

Remaining 2020	$	2,941
2021		3,296
2022		3,003
2023		2,323
2024		2,188
Thereafter		7,135
Total	$	20,886

4. SECURITIES

The amortized cost and fair value of investment securities were as follows:

	March 31, 2020
			Gross		Gross
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gains		Losses			Value
	(Dollars in thousands)
Available for Sale
U.S. government and agency securities	$	27,914	$	506	$	(118	)	$	28,302
Municipal securities		252,906		3,634		—			256,540
Agency mortgage-backed pass-through securities		93,965		3,961		—			97,926
Agency collateralized mortgage obligations		102,361		3,036		(1,411	)		103,986
Corporate bonds and other		21,618		78		(200	)		21,496
Total	$	498,764	$	11,215	$	(1,729	)	$	508,250

	December 31, 2019
			Gross		Gross
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gains		Losses			Value
	(Dollars in thousands)
Available for Sale
U.S. government and agency securities	$	29,420	$	298	$	(243	)	$	29,475
Municipal securities		84,200		3,453		(116	)		87,537
Agency mortgage-backed pass-through securities		104,669		1,713		(214	)		106,168
Agency collateralized mortgage obligations		106,351		1,199		(208	)		107,342
Corporate bonds and other		41,691		346		(14	)		42,023
Total	$	366,331	$	7,009	$	(795	)	$	372,545

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does not believe any of the securities are impaired due to reasons of credit quality. Accordingly, as of March 31, 2020, management believed the unrealized losses in the previous table are temporary and no other than temporary impairment loss has been realized in the Company’s consolidated statements of income.

The amortized cost and fair value of investment securities at March 31, 2020, by contractual maturity, are shown below. Expected maturities may differ from contractual maturities if borrowers have the right to call or prepay obligations at any time with or without call or prepayment penalties.

	Amortized		Fair
	Cost		Value
	(Dollars in thousands)
Due in one year or less	$	15,007	$	14,997
Due after one year through five years		10,520		10,931
Due after five years through ten years		57,109		58,760
Due after ten years		219,802		221,650
Subtotal		302,438		306,338
Agency mortgage-backed pass through and collateralized mortgage obligation securities		196,326		201,912
Total	$	498,764	$	508,250

Securities with unrealized losses segregated by length of time such securities have been in a continuous loss position are as follows:

	March 31, 2020
	Less than 12 Months					More than 12 Months				Total
	Estimated		Unrealized			Estimated		Unrealized		Estimated		Unrealized
	Fair Value		Losses			Fair Value		Losses		Fair Value		Losses
	(Dollars in thousands)
Available for Sale
U.S. government and agency securities	$	20,702	$	(118	)	$	—	$	—	$	20,702	$	(118	)
Agency collateralized mortgage obligations		41,822		(1,411	)		—		—		41,822		(1,411	)
Corporate bonds and other		14,387		(200	)		—		—		14,387		(200	)
Total	$	76,911	$	(1,729	)	$	—	$	—	$	76,911	$	(1,729	)

	December 31, 2019
	Less than 12 Months					More than 12 Months					Total
	Estimated		Unrealized			Estimated		Unrealized			Estimated		Unrealized
	Fair Value		Losses			Fair Value		Losses			Fair Value		Losses
	(Dollars in thousands)
Available for Sale
U.S. government and agency securities	$	22,295	$	(239	)	$	436	$	(4	)	$	22,731	$	(243	)
Agency mortgage-backed pass-through securities		20,792		(155	)		4,369		(59	)		25,161		(214	)
Agency collateralized mortgage obligations		22,340		(208	)		—		—			22,340		(208	)
Municipal securities		9,514		(116	)		—		—			9,514		(116	)
Corporate bonds and other		5,492		(14	)		—		—			5,492		(14	)
Total	$	80,433	$	(732	)	$	4,805	$	(63	)	$	85,238	$	(795	)

The Company sold $29.7 million in securities and recorded gross gains of $298 thousand and gross losses of $104 thousand for a net gain of $194 thousand during the three months ended March 31, 2020. There were no securities sold during the three months ended March 31, 2019. At March 31, 2020 and December 31, 2019, the Company did not own securities of any one issuer, other than the U.S government and its agencies, in an amount greater than 10% of consolidated shareholders’ equity at such respective dates.

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The carrying value of pledged securities was $25.1 million at March 31, 2020 and $24.3 million at December 31, 2019, respectively. The majority of the securities were pledged to collateralize public fund deposits.

5. LOANS AND ALLOWANCE FOR LOAN LOSSES

The loan portfolio balances, net of unearned income and fees, consist of various types of loans primarily made to borrowers located within Texas and are classified by major type as follows:

	March 31,			December 31,
	2020			2019
	(Dollars in thousands)
Commercial and industrial	$	702,267		$	689,360
Mortgage warehouse		1,051			8,304
Real estate:
Commercial real estate (including multi-family residential)		1,951,080			1,873,782
Commercial real estate construction and land development		378,987			410,471
1-4 family residential (including home equity)		704,212			698,957
Residential construction		177,025			192,515
Consumer and other		40,924			41,921
Total loans		3,955,546			3,915,310
Allowance for loan losses		(37,511	)		(29,438	)
Loans, net	$	3,918,035		$	3,885,872

Acquired Loans

PCI loans

The Company has loans that were acquired and for which there was, at acquisition, evidence of deterioration of credit quality since origination and for which it was probable, at acquisition, that all contractually required payments would not be collected. The carrying amount of PCI loans included in the consolidated balance sheet and the related outstanding balance owed at March 31, 2020 are presented in the table below:

	As of March 31, 2020			As of December 31, 2019
	(Dollars in thousands)
Outstanding balance	$	16,372		$	16,589
Less: Discount		(2,267	)		(2,414	)
Less: Allowance		(1,111	)		(259	)
Recorded investment	$	12,994		$	13,916

The recorded investment of PCI loans at March 31, 2019 was $21.4 million. Acquired loans were recorded through acquisition accounting without an allowance. There was an allocation of $1.1 million in the allowance for loan losses relating to PCI loans at March 31, 2020.

Changes in the accretable yield for PCI loans for the three months ended March 31, 2020 and 2019 were deemed immaterial.

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Nonaccrual and Past Due Loans

An aging analysis of the recorded investment, defined as the unpaid principal balance, in past due loans, segregated by class of loans, is as follows:

	March 31, 2020
	Loans Past Due and Still Accruing
	30-89		90 or More		Total Past		Nonaccrual		Current		Total
	Days		Days		Due Loans		Loans		Loans		Loans
	(Dollars in thousands)
Commercial and industrial	$	5,536	$	—	$	5,536	$	8,669	$	688,062	$	702,267
Mortgage warehouse		—		—		—		—		1,051		1,051
Real estate:
Commercial real estate (including multi-family residential)		9,787		—		9,787		7,024		1,934,269		1,951,080
Commercial real estate construction and land development		4,049		—		4,049		1,958		372,980		378,987
1-4 family residential (including home equity)		3,664		—		3,664		2,845		697,703		704,212
Residential construction		447		—		447		982		175,596		177,025
Consumer and other		57		—		57		143		40,724		40,924
Total loans	$	23,540	$	—	$	23,540	$	21,621	$	3,910,385	$	3,955,546

	December 31, 2019
	Loans Past Due and Still Accruing
	30-89		90 or More		Total Past		Nonaccrual		Current		Total
	Days		Days		Due Loans		Loans		Loans		Loans
	(Dollars in thousands)
Commercial and industrial	$	3,098	$	—	$	3,098	$	8,388	$	677,874	$	689,360
Mortgage warehouse		—		—		—		—		8,304		8,304
Real estate:
Commercial real estate (including multi-family residential)		4,421		—		4,421		6,741		1,862,620		1,873,782
Commercial real estate construction and land development		66		—		66		9,050		401,355		410,471
1-4 family residential (including home equity)		1,598		—		1,598		3,294		694,065		698,957
Residential construction		564		—		564		746		191,205		192,515
Consumer and other		254		—		254		152		41,515		41,921
Total loans	$	10,001	$	—	$	10,001	$	28,371	$	3,876,938	$	3,915,310

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Impaired Loans

Impaired loans by class of loans are set forth in the following tables.

	As of March 31, 2020
			Unpaid
	Recorded		Principal		Related
	Investment		Balance		Allowance
	(Dollars in thousands)
With no related allowance recorded:
Commercial and industrial	$	5,368	$	5,433	$	—
Mortgage warehouse		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		20,673		20,753		—
Commercial real estate construction and land development		1,958		1,958		—
1-4 family residential (including home equity)		1,389		1,389		—
Residential construction		—		—		—
Consumer and other		33		33		—
Total		29,421		29,566		—
With an allowance recorded:
Commercial and industrial		6,827		7,522		2,692
Mortgage warehouse		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		3,416		3,416		238
Commercial real estate construction and land development		3,386		3,386		225
1-4 family residential (including home equity)		93		93		2
Residential construction		982		982		144
Consumer and other		25		25		7
Total		14,729		15,424		3,308
Total:
Commercial and industrial		12,195		12,955		2,692
Mortgage warehouse		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		24,089		24,169		238
Commercial real estate construction and land development		5,344		5,344		225
1-4 family residential (including home equity)		1,482		1,482		2
Residential construction		982		982		144
Consumer and other		58		58		7
	$	44,150	$	44,990	$	3,308

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	As of December 31, 2019
			Unpaid
	Recorded		Principal		Related
	Investment		Balance		Allowance
	(Dollars in thousands)
With no related allowance recorded:
Commercial and industrial	$	5,721	$	6,136	$	—
Mortgage warehouse		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		19,478		19,558		—
Commercial real estate construction and land development		—		—		—
1-4 family residential (including home equity)		2,000		2,000		—
Residential construction		208		208		—
Consumer and other		38		38		—
Total		27,445		27,940		—
With an allowance recorded:
Commercial and industrial		7,812		7,286		3,480
Mortgage warehouse		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		5,335		5,335		459
Commercial real estate construction and land development		12,142		12,142		2,085
1-4 family residential (including home equity)		—		—		—
Residential construction		537		537		66
Consumer and other		26		26		26
PCI		2,039		2,959		659
Total		27,891		28,285		6,775
Total:
Commercial and industrial		13,533		13,422		3,480
Mortgage warehouse		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		24,813		24,893		459
Commercial real estate construction and land development		12,142		12,142		2,085
1-4 family residential (including home equity)		2,000		2,000		—
Residential construction		745		745		66
Consumer and other		64		64		26
PCI		2,039		2,959		659
	$	55,336	$	56,225	$	6,775

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The following table presents average impaired loans and interest recognized on impaired loans for the three months ended March 31, 2020 and 2019:

	Three Months Ended March 31,
	2020				2019
	Average		Interest		Average		Interest
	Recorded		Income		Recorded		Income
	Investment		Recognized		Investment		Recognized
	(Dollars in thousands)
Commercial and industrial	$	12,469	$	102	$	14,352	$	92
Mortgage warehouse		—		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		24,192		233		22,499		95
Commercial real estate construction and land development		5,197		47		3,786		31
1-4 family residential (including home equity)		1,499		3		2,495		4
Residential construction		864		—		—		—
Consumer and other		61		—		40		—
Total	$	44,282	$	385	$	43,172	$	222

Credit Quality Indicators

The Company categorizes loans into risk categories based on relevant information about the ability of borrowers to service their debt, including factors such as: current financial information, historical payment experience, credit documentation, public information and current economic trends. The Company analyzes loans individually by classifying the loans by credit risk. As part of the ongoing monitoring of the credit quality of the Company’s loan portfolio and methodology for calculating the allowance for loan losses, management assigns and tracks risk ratings to be used as credit quality indicators.

The following is a general description of the risk ratings used:

Pass—Loans classified as pass are loans with low to average risk and not otherwise classified as watch, special mention, substandard or doubtful. In addition, the guaranteed portion of SBA loans are considered pass risk rated loans.

Watch—Loans classified as watch loans may still be of high quality, but have an element of risk added to the credit such as declining payment history, deteriorating financial position of the borrower or a decrease in collateral value.

Special Mention—Loans classified as special mention have a potential weakness that deserves management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or of the institution’s credit position at some future date. They are characterized by the distinct possibility that the institution will sustain some loss if the deficiencies are not corrected.

Substandard—Loans classified as substandard have well-defined weaknesses on a continuing basis and are inadequately protected by the current net worth and paying capacity of the borrower, impaired or declining collateral values, or a continuing downturn in their industry which is reducing their profits to below zero and having a significantly negative impact on their cash flow. These classified loans are characterized by the distinct possibility that the institution will sustain some loss if the deficiencies are not corrected.

Doubtful—Loans classified as doubtful have all the weaknesses inherent in those classified as 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.

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Based on the most recent analysis performed, the risk category of loans by class of loan at their recorded investment at March 31, 2020 is as follows:

	Pass		Watch		Special Mention		Substandard		Doubtful		Total
	(Dollars in thousands)
Commercial and industrial	$	647,621	$	19,691	$	10,352	$	24,527	$	76	$	702,267
Mortgage warehouse		1,051		—		—		—		—		1,051
Real estate:
Commercial real estate (including multi-family residential)		1,838,807		55,719		14,240		42,314		—		1,951,080
Commercial real estate construction and land development		363,533		9,451		644		5,359		—		378,987
1-4 family residential (including home equity)		679,037		11,229		6,687		7,259		—		704,212
Residential construction		173,563		2,480		—		982		—		177,025
Consumer and other		40,223		158		352		191		—		40,924
Total loans	$	3,743,835	$	98,728	$	32,275	$	80,632	$	76	$	3,955,546

The following table presents the risk category of loans by class of loan at December 31, 2019:

	Pass		Watch		Special Mention		Substandard		Doubtful		Total
	(Dollars in thousands)
Commercial and industrial	$	641,696	$	14,170	$	9,121	$	24,295	$	78	$	689,360
Mortgage warehouse		8,304		—		—		—		—		8,304
Real estate:
Commercial real estate (including multi-family residential)		1,775,789		47,762		9,289		40,942		—		1,873,782
Commercial real estate construction and land development		388,151		9,583		639		12,098		—		410,471
1-4 family residential (including home equity)		669,288		15,798		5,844		8,027		—		698,957
Residential construction		189,209		2,560		—		746		—		192,515
Consumer and other		41,355		6		358		202		—		41,921
Total loans	$	3,713,792	$	89,879	$	25,251	$	86,310	$	78	$	3,915,310

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Allowance for Loan Losses

The following table presents the activity in the allowance for loan losses by portfolio type for the three months ended March 31, 2020 and 2019:

	Commercial and industrial			Mortgage warehouse		Commercial real estate (including multi-family residential)			Commercial real estate construction and land development			1-4 family residential (including home equity)			Residential construction		Consumer and other			Total
	(Dollars in thousands)
Allowance for loan losses:
Three Months Ended
Balance December 31, 2019	$	8,818		$	—	$	11,170		$	4,421		$	3,852		$	1,057	$	120		$	29,438
Provision for loan losses		1,865			—		5,725			732			2,296			374		(2	)		10,990
Charge-offs		(734	)		—		(144	)		(2,164	)		(90	)		—		—			(3,132	)
Recoveries		215			—		—			—			—			—		—			215
Net charge-offs		(519	)		—		(144	)		(2,164	)		(90	)		—		—			(2,917	)
Balance March 31, 2020	$	10,164		$	—	$	16,751		$	2,989		$	6,058		$	1,431	$	118		$	37,511
Allowance for loan losses:
Three Months Ended
Balance December 31, 2018	$	8,351		$	—	$	11,901		$	2,724		$	2,242		$	1,040	$	73		$	26,331
Provision for loan losses		803			—		(85	)		(435	)		653			84		(18	)		1,002
Charge-offs		(246	)		—		(80	)		—			—			—		—			(326	)
Recoveries		91			—		3			—			—			—		22			116
Net charge-offs		(155	)		—		(77	)		—			—			—		22			(210	)
Balance March 31, 2019	$	8,999		$	—	$	11,739		$	2,289		$	2,895		$	1,124	$	77		$	27,123

The following table presents the balance of the allowance for loan losses by portfolio type based on the impairment method as of March 31, 2020 and December 31, 2019:

	Commercial and industrial		Mortgage warehouse		Commercial real estate (including multi-family residential)		Commercial real estate construction and land development		1-4 family residential (including home equity)		Residential construction		Consumer and other		Total
	(Dollars in thousands)
Allowance for loan losses related to:
March 31, 2020
Individually evaluated for impairment	$	2,692	$	—	$	238	$	225	$	2	$	144	$	7	$	3,308
Collectively evaluated for impairment		7,472		—		16,513		2,764		6,056		1,287		111		34,203
Total allowance for loan losses	$	10,164	$	—	$	16,751	$	2,989	$	6,058	$	1,431	$	118	$	37,511

December 31, 2019
Individually evaluated for impairment	$	4,139	$	—	$	459	$	2,085	$	—	$	66	$	26	$	6,775
Collectively evaluated for impairment		4,679		—		10,711		2,336		3,852		991		94		22,663
Total allowance for loan losses	$	8,818	$	—	$	11,170	$	4,421	$	3,852	$	1,057	$	120	$	29,438

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The following table presents the recorded investment in loans held for investment by portfolio type based on the impairment method as of March 31, 2020 and December 31, 2019:

	Commercial and industrial		Mortgage warehouse		Commercial real estate (including multi-family residential)		Commercial real estate construction and land development		1-4 family residential (including home equity)		Residential construction		Consumer and other		Total
	(Dollars in thousands)
Recorded investment in loans:
March 31, 2020
Individually evaluated for impairment	$	12,195	$	—	$	24,089	$	5,344	$	1,482	$	982	$	58	$	44,150
Collectively evaluated for impairment		690,072		1,051		1,926,991		373,643		702,730		176,043		40,866		3,911,396
Total loans evaluated for impairment	$	702,267	$	1,051	$	1,951,080	$	378,987	$	704,212	$	177,025	$	40,924	$	3,955,546

December 31, 2019
Individually evaluated for impairment	$	15,572	$	—	$	24,813	$	12,142	$	2,000	$	745	$	64	$	55,336
Collectively evaluated for impairment		673,788		8,304		1,848,969		398,329		696,957		191,770		41,857		3,859,974
Total loans evaluated for impairment	$	689,360	$	8,304	$	1,873,782	$	410,471	$	698,957	$	192,515	$	41,921	$	3,915,310

Troubled Debt Restructurings

As of March 31, 2020 and December 31, 2019, the Company had a recorded investment in troubled debt restructurings of $28.3 million and $28.9 million, respectively. The Company allocated $2.6 million and $3.2 million of specific reserves for troubled debt restructurings at March 31, 2020 and December 31, 2019, respectively.

The following table presents information regarding loans modified in a troubled debt restructuring during the three months ended March 31, 2020 and 2019:

	Three Months Ended March 31,
	2020						2019
	Number of Contracts		Pre-Modification of Outstanding Recorded Investment		Post Modification of Outstanding Recorded Investment		Number of Contracts		Pre-Modification of Outstanding Recorded Investment		Post Modification of Outstanding Recorded Investment
	(Dollars in thousands)
Troubled Debt Restructurings
Commercial and industrial		5	$	1,104	$	1,104		6	$	511	$	511
Mortgage warehouse		—		—		—		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		—		—		—		—		—		—
Commercial real estate construction and land development		—		—		—		—		—		—
1-4 family residential (including home equity)		1		118		118		1		397		397
Residential construction		—		—		—		—		—		—
Consumer and other		1		30		30		1		38		38
Total		7	$	1,252	$	1,252		8	$	946	$	946

Troubled debt restructurings resulted in $394 thousand of charge-offs during the three months ended March 31, 2020. Troubled debt restructurings resulted in no charge-offs during the three months ended March 31, 2019.

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As of March 31, 2020, four loans for a total of $441 thousand were modified under a troubled debt restructuring during the previous twelve-month period that subsequently defaulted during the three months ended March 31, 2020. As of March 31, 2019, a $3.4 million loan was modified under a troubled debt restructuring during the previous twelve-month period that subsequently defaulted during the three months ended March 31, 2019. Default is determined at 90 or more days past due. The modifications primarily related to extending the amortization periods of the loans. The Company did not grant principal reductions on any restructured loans. There were no commitments to lend additional amounts to troubled debt restructured loans for the three months ended March 31, 2020 and 2019. During the three months ended March 31, 2020, the Company added $1.3 million in new troubled debt restructurings, of which $1.2 million was still outstanding on March 31, 2020. During the three months ended March 31, 2019, the Company added $946 thousand in new troubled debt restructurings, of which $902 thousand was still outstanding on March 31, 2019.

In accordance with regulatory guidance to work with customers during this unprecedented situation, the Company executed a payment deferral program for its customers that have been adversely affected by the COVID-19 pandemic. As discussed in Note 1 to these financial statements, the CARES Act provided banks an option to elect not to account for certain loan modifications related to COVID-19 as troubled debt restructurings as long as the borrowers were not more than 30 days past due. The above disclosed troubled debt restructurings were not related to COVID-19 modifications. As of April 26, 2020, the Company had executed 1,563 principal and interest deferrals on outstanding loan balances of $838.1 million in connection with the interagency statement on loan modifications and reporting for financial institutions working with customers affected by COVID-19 issued by the federal banking regulators. These deferrals were generally no more than 90 days in duration and were not considered troubled debt restructurings based on interagency guidance issued in March 2020.

6. LEASES

Lease payments over the expected term are discounted using the Company’s incremental borrowing rate for borrowings of similar terms. Generally, the Company cannot be reasonably certain about whether or not it will renew a lease until such time as the lease is within the last two years of the existing lease term. When the Company is reasonably certain that a renewal option will be exercised, it measures/remeasures the right-of-use asset and related lease liability using the lease payments specified for the renewal period or, if such amounts are unspecified, the Company generally assumes an increase (evaluated on a case-by-case basis in light of prevailing market conditions) in the lease payment over the final period of the existing lease term.

There were no sale and leaseback transactions, leveraged leases or lease transactions with related parties during the three months ended March 31, 2020 and 2019.

At March 31, 2020, the Company had 14 leases consisting of branch locations and office space along with equipment. On the March 31, 2020 balance sheet, the right-of-use asset is classified within premises and equipment and the lease liability is included in other liabilities. The Company also owns certain office facilities which it leases to outside parties under operating lessor leases; however, such leases are not significant. All leases were classified as operating leases. Leases with an initial term of 12 months or less are not recorded on the balance sheet and the related lease expense is recognized on a straight-line basis over the lease term. During the third quarter 2019, Allegiance Bank purchased two previously leased properties for a total of $10.7 million.

Operating lease costs classified as occupancy and equipment expense were $817 thousand and $942 thousand for the three months ended March 31, 2020 and 2019, respectively. Included in these amounts were short-term lease costs of $22 thousand and $191 thousand for the three months ended March 31, 2020 and 2019, respectively.

Certain leases include options to renew, with renewal terms that can extend the lease term from one to five years. Lease assets and liabilities include related options that are reasonably certain of being exercised. The depreciable life of leased assets are limited by the expected lease term.

Supplemental lease information at the dates indicated is as follows:


	March 31, 2020			December 31, 2019
	(Dollars in thousands)
Balance Sheet:
Operating lease right of use asset classified as premises and equipment	$	10,544		$	11,180
Operating lease liability classified as other liabilities		10,831			11,477
Weighted average lease term, in years		5.38			5.53
Weighted average discount rate		3.20	%		3.19	%

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A maturity analysis of the Company’s lease liabilities is as follows:

	March 31, 2020		December 31, 2019
	(Dollars in thousands)
Lease payments due:
Within one year	$	2,803	$	2,867
After one but within two years		2,576		2,608
After two but within three years		1,979		2,204
After three but within four years		1,557		1,596
After four but within five years		924		1,131
After five years		1,996		2,162
Total lease payments		11,835		12,568
Discount on cash flows		1,004		1,091
Total lease liability	$	10,831	$	11,477

7. FAIR VALUE

The Company uses fair value measurements to record fair value adjustments to certain assets and to determine fair value disclosures. Fair value represents the exchange price that would be received from selling an asset or paid to transfer a liability, otherwise known as an “exit price,” in the principal or most advantageous market available to the entity in an orderly transaction between market participants on the measurement date.

Fair Value Hierarchy

Fair value is the exchange price that would be received for an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The Company groups financial assets and financial liabilities measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. These levels are:

•

Level 1—Quoted prices for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date.

•

Level 2—Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.

•

Level 3—Significant unobservable inputs that reflect management’s judgment and assumptions that market participants would use in pricing an asset or liability that are supported by little or no market activity.

The carrying amounts and estimated fair values of financial instruments that are reported on the balance sheet are as follows:

	As of March 31, 2020
	Carrying		Estimated Fair Value
	Amount		Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Financial assets
Cash and cash equivalents	$	174,889	$	174,889	$	—	$	—	$	174,889
Available for sale securities		508,250		—		508,250		—		508,250
Loans held for investment, net of allowance		3,918,035		—		—		3,785,598		3,785,598
Accrued interest receivable		17,203		6		3,055		14,142		17,203
Financial liabilities
Deposits	$	3,953,574	$	—	$	3,971,035	$	—	$	3,971,035
Accrued interest payable		3,821		—		3,821		—		3,821
Borrowed funds		190,506		—		200,706		—		200,706
Subordinated debt		107,930		—		101,588		—		101,588

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	As of December 31, 2019
	Carrying		Estimated Fair Value
	Amount		Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Financial assets
Cash and cash equivalents	$	346,248	$	346,248	$	—	$	—	$	346,248
Available for sale securities		372,545		—		372,545		—		372,545
Loans held for investment, net of allowance		3,885,872		—		—		3,918,210		3,918,210
Accrued interest receivable		15,468		13		1,783		13,672		15,468
Financial liabilities
Deposits	$	4,068,101	$	—	$	4,073,031	$	—	$	4,073,031
Accrued interest payable		4,326		—		4,326		—		4,326
Borrowed funds		75,503		—		83,302		—		83,302
Subordinated debt		107,799		—		109,607		—		109,607

The following tables present fair values for assets measured at fair value on a recurring basis:

	March 31, 2020
	Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Available for sale securities:
U.S. government and agency securities	$	—	$	28,302	$	—	$	28,302
Municipal securities		—		256,540		—		256,540
Agency mortgage-backed pass-through securities		—		97,926		—		97,926
Agency collateralized mortgage obligations		—		103,986		—		103,986
Corporate bonds and other		—		21,496		—		21,496
Total	$	—	$	508,250	$	—	$	508,250

	December 31, 2019
	Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Available for sale securities:
U.S. government and agency securities	$	—	$	29,475	$	—	$	29,475
Municipal securities		—		87,537		—		87,537
Agency mortgage-backed pass-through securities		—		106,168		—		106,168
Agency collateralized mortgage obligations		—		107,342		—		107,342
Corporate bonds and other		—		42,023		—		42,023
Total	$	—	$	372,545	$	—	$	372,545

There were no liabilities measured at fair value on a recurring basis as of March 31, 2020 or December 31, 2019. There were no transfers between levels during the three months ended March 31, 2020 or 2019.

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The following table presents certain assets and liabilities 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 such as evidence of impairment.

	As of March 31, 2020
	Level 1		Level 2		Level 3
	(Dollars in thousands)
Impaired loans:
Commercial and industrial	$	—	$	—	$	4,135
Commercial real estate (including multi- family residential)		—		—		3,178
Commercial real estate construction and land development		—		—		3,161
1-4 family residential (including home equity)		—		—		91
Residential construction		—		—		838
Consumer and other		—		—		18
Other real estate owned		—		—		12,617
	$	—	$	—	$	24,038

	As of December 31, 2019
	Level 1		Level 2		Level 3
	(Dollars in thousands)
Impaired loans:
Commercial and industrial	$	—	$	—	$	4,332
Commercial real estate (including multi- family residential)		—		—		4,876
Commercial real estate construction and land development		—		—		10,057
Residential construction		—		—		471
PCI		—		—		1,380
Other real estate owned		—		—		8,337
	$	—	$	—	$	29,453

Impaired Loans with Specific Allocation of Allowance

A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due pursuant to the contractual terms of the loan agreement. Impairment is measured by estimating the fair value of the loan based on the present value of expected cash flows, the market price of the loan or the underlying fair value of the loan’s collateral. For real estate loans, fair value of the impaired loan’s collateral is determined by third-party appraisals, which are then adjusted for the estimated selling and closing costs related to liquidation of the collateral. For this asset class, the actual valuation methods (income, sales comparable or cost) vary based on the status of the project or property. For example, land is generally based on the sales comparable method while construction is based on the income and/or sales comparable methods. The unobservable inputs may vary depending on the individual assets with no one of the three methods being the predominant approach. The Company reviews the third-party appraisal for appropriateness and adjusts the value downward to consider selling and closing costs, which typically range from 5% to 10% of the appraised value. For non-real estate loans, fair value of the impaired loan’s collateral may be determined using an appraisal, net book value per the borrower’s financial statements or aging reports, adjusted or discounted based on management’s historical knowledge, changes in market conditions from the time of the valuation and management’s expertise and knowledge of the customer and the customer's business.

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During the three months ended March 31, 2020 and the year ended December 31, 2019, certain impaired loans were reevaluated and reported at fair value through a specific allocation of the allowance for loan losses. At March 31, 2020, the total reported fair value of impaired loans of $11.4 million based on collateral valuations utilizing Level 3 valuation inputs had a carrying value of $14.7 million that was reduced by specific allowance allocations totaling $3.3 million. At December 31, 2019, the total reported fair value of impaired loans of $21.1 million based on collateral valuations utilizing Level 3 valuation inputs had a carrying value of $27.9 million that was reduced by specific allowance allocations totaling $6.8 million.

Other Real Estate Owned

Other real estate owned is comprised of real estate acquired in partial or full satisfaction of loans. Other real estate owned is recorded at its estimated fair value less estimated selling and closing costs at the date of transfer. Any excess of the related loan balance over the fair value less expected selling costs is charged to the allowance. Subsequent declines in fair value are reported as adjustments to the carrying amount and are recorded against earnings. The fair value of other real estate owned is determined using third-party appraisals or other indications of value based on recent comparable sales of similar properties or assumptions generally observable in the marketplace. For this asset class, the actual valuation methods (income, sales comparable or cost) vary based on the status of the project or property. For example, land is generally based on the sales comparable method while construction is based on the income and/or sales comparable methods. The unobservable inputs may vary depending on the individual assets with no one of the three methods being the predominant approach. The Company reviews the third party appraisal for appropriateness and adjusts the value downward to consider selling and closing costs, which typically range from 5% to 10% of the appraised value.

At March 31, 2020, the $12.6 million balance of other real estate owned consisted of three foreclosed commercial real estate properties, one tract of vacant land, one residential lot and one foreclosed residential rental property recorded as a result of obtaining the physical possession of the property. The Company had $8.3 million of other real estate owned at December 31, 2019 consisting primarily of foreclosed commercial real estate properties as a result of obtaining physical possession of the property.

8. DEPOSITS

Time deposits that met or exceeded the Federal Deposit Insurance Corporation insurance limit of $250 thousand at March 31, 2020 and December 31, 2019 were $528.3 million and $485.8 million, respectively.

Scheduled maturities of time deposits for the next five years are as follows (dollars in thousands):

Within one year	$	835,797
After one but within two years		210,645
After two but within three years		136,183
After three but within four years		49,551
After four but within five years		51,711
Total	$	1,283,887

The Company had $410.4 million and $263.5 million of brokered deposits as of March 31, 2020 and December 31, 2019, respectively. There were no concentrations of deposits with any one depositor at March 31, 2020 and December 31, 2019.

9. BORROWINGS AND BORROWING CAPACITY

The Company has an available line of credit with the Federal Home Loan Bank (“FHLB”) of Dallas, which allows the Company to borrow on a collateralized basis. FHLB advances are used to manage liquidity as needed. The advances are secured by a blanket lien on certain loans. Maturing advances are replaced by drawing on available cash, making additional borrowings or through increased customer deposits. At March 31, 2020, the Company had a total borrowing capacity of $1.74 billion, of which $1.39 billion was available and $359.9 million was outstanding. FHLB advances of $175.0 million were outstanding at March 31, 2020, at a weighted average interest rate of 1.06%. Letters of credit were $184.9 million at March 31, 2020, of which $87.8 million will expire during the remaining months of 2020, $85.5 million will expire in 2021 and $11.6 million will expire in 2022.

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On December 28, 2018, the Company amended its revolving credit agreement to increase the maximum commitment to advance funds to $45.0 million which will reduce annually by $7.5 million beginning in December 2020 and on each December 22nd for the following years thereafter. The Company is required to repay any outstanding balance in excess of the then-current maximum commitment amount. The revised agreement will mature in December 2025 and is secured by 100% of the capital stock of the Bank. At March 31, 2020, the balance of the revolving credit agreement was $15.6 million. The credit agreement contains certain restrictive covenants. At March 31, 2020, the Company believes it was in compliance with all such debt covenants, except that return on assets at the Bank was 0.36% (below the required minimum) for the quarter ended March 31, 2020, due to the provision for loan losses recorded in response to COVID-19 related uncertainties in the economic environment at the end of the first quarter 2020. Such noncompliance has been waived by the lender with respect to the first quarter 2020. The interest rate on the debt is the Prime Rate minus 25 basis points, or 3.00%, at March 31, 2020, and is paid quarterly.

10. SUBORDINATED DEBT

Junior Subordinated Debentures

On January 1, 2015, the Company acquired F&M Bancshares, Inc. and assumed Farmers & Merchants Capital Trust II and Farmers & Merchants Capital Trust III. Each of these trusts is a capital or statutory business trust organized for the sole purpose of issuing trust securities and investing the proceeds in the Company’s junior subordinated debentures. The preferred trust securities of each trust represent preferred beneficial interests in the assets of the respective trusts and are subject to mandatory redemption upon payment of the junior subordinated debentures held by the trust. The common securities of each trust are wholly owned by the Company. Each trust’s ability to pay amounts due on the trust preferred securities is solely dependent upon the Company making payment on the related junior subordinated debentures. The debentures, which are the only assets of each trust, are subordinate and junior in right of payment to all of the Company’s present and future senior indebtedness. The Company has fully and unconditionally guaranteed each trust’s obligations under the trust securities issued by such trust to the extent not paid or made by such trust, provided such trust has funds available for such obligations.

Under the provisions of each issue of the debentures, the Company has the right to defer payment of interest on the debentures at any time, or from time to time, for periods not exceeding five years. If interest payments on either issue of the debentures are deferred, the distributions on the applicable trust preferred securities and common securities will also be deferred.

The Company assumed the junior subordinated debentures with an aggregate original principal amount of $11.3 million and a current carrying value at March 31, 2020 of $9.6 million. At acquisition, the Company recorded a discount of $2.5 million on the debentures. The difference between the carrying value and contractual balance will be recognized as a yield adjustment over the remaining term for the debentures. At March 31, 2020, the Company had $11.3 million outstanding in junior subordinated debentures issued to the Company’s unconsolidated subsidiary trusts. The junior subordinated debentures are included in tier 1 capital under current regulatory guidelines and interpretations.

A summary of pertinent information related to the Company’s issues of junior subordinated debentures outstanding at March 31, 2020 is set forth in the table below:

Description

Issuance

Date

Trust

Preferred

Securities

Outstanding

Interest Rate⁽¹⁾

Junior

Subordinated

Debt Owed

to Trusts

Maturity

Date⁽²⁾

(Dollars in thousands)

Farmers & Merchants Capital Trust II

November 13, 2003

7,500

3 month LIBOR + 3.00%

7,732

November 8, 2033

Farmers & Merchants Capital Trust III

June 30, 2005

3,500

3 month LIBOR + 1.80%

3,609

July 7, 2035

11,341

(1)	The 3-month LIBOR in effect as of March 31, 2020 was 1.1024%.

(2)	All debentures are currently callable.

Subordinated Notes

In December 2017, the Bank completed the issuance, through a private placement, of $40.0 million aggregate principal amount of Fixed-to-Floating Rate Subordinated Notes (the "Bank Notes") due December 15, 2027. The Bank Notes were issued at a price equal to 100% of the principal amount, resulting in net proceeds to the Bank of $39.4 million.

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until the Bank Notes mature on December 15, 2027, or such earlier redemption date, payable quarterly in arrears. The Bank Notes will be redeemable by the Bank, in whole or in part, on or after December 15, 2022 or, in whole but not in part, upon the occurrence of certain specified tax events, capital events or investment company events. Any redemption will be at a redemption price equal to 100% of the principal amount of Bank Notes being redeemed, plus accrued and unpaid interest, and will be subject to, and require, prior regulatory approval. The Bank Notes are not subject to redemption at the option of the holders.

In September 2019, the Company completed the issuance of $60.0 million aggregate principal amount of Fixed-to-Floating Rate Subordinated Notes (the "Company Notes") due October 1, 2029. The Company Notes were issued at a price equal to 100% of the principal amount, resulting in net proceeds to the Company of $58.6 million. The Company used the net proceeds from the offering to support its growth and for general corporate purposes.

The Company Notes bear a fixed interest rate of 4.70% per annum until (but excluding) October 1, 2024, payable semi-annually in arrears on April 1 and October 1, commencing on April 1, 2020. Thereafter, from October 1, 2024 through the maturity date, October 1, 2029, or earlier redemption date, the Company Notes will bear interest at a floating rate equal to the then-current three-month LIBOR, plus 313 basis points (3.13%) for each quarterly interest period (subject to certain provisions set forth under “Description of the Notes—Interest Rates and Interest Payment Dates” included in the Prospectus Supplement), payable quarterly in arrears on January 1, April 1, July 1 and October 1 of each year. Any redemption will be at a redemption price equal to 100% of the principal amount of Company Notes being redeemed, plus accrued and unpaid interest, and will be subject to, and require, prior regulatory approval. The Company Notes are not subject to redemption at the option of the holders.

11. INCOME TAXES

The amount of the Company’s federal and state income tax expense is influenced by the amount of pre-tax income, the amount of tax-exempt income and the amount of other nondeductible items. For the three months ended March 31, 2020, income tax expense was $843 thousand compared with $3.1 million for the three months ended March 31, 2019. The effective income tax rate for the three months ended March 31, 2020 was 19.3% compared to 19.6% for the three months ended March 31, 2019.

Interest and penalties related to tax positions are recognized in the period in which they begin accruing or when the entity claims the position that does not meet the minimum statutory thresholds. The Company does not have any uncertain tax positions and does not have any interest and penalties recorded in the income statement for the three months ended March 31, 2020. The Company is no longer subject to examination by the U.S. Federal Tax Jurisdiction for the years prior to 2016.

12. STOCK BASED COMPENSATION

At March 31, 2020, the Company had two stock-based employee compensation plans with awards outstanding. In connection with the acquisition of Post Oak Bancshares, Inc. on October 1, 2018, the Company assumed the Post Oak Bancshares, Inc. Stock Option Plan, under which no additional awards will be issued. During 2019, the Company’s Board of Directors and shareholders approved the 2019 Amended and Restated Stock Awards and Incentive Plan (the “Plan”) covering certain awards of stock-based compensation to key employees and directors of the Company. Under the Plan, the Company is authorized to issue a maximum aggregate of 3,200,000 shares of stock, up to 1,800,000 of which may be issued through incentive stock options. The Company accounts for stock based employee compensation plans using the fair value-based method of accounting. The Company recognized total stock based compensation expense of $804 thousand for the three months ended March 31, 2020 and $607 thousand for the three months ended March 31, 2019.

Stock Options

Options to purchase a total of 1,309,231 shares of Company stock have been granted as of March 31, 2020. Options are exercisable for up to 10 years from the date of the grant and, dependent on the terms of the applicable award agreement generally vest four years after the date of grant. The fair value of stock options granted is estimated at the date of grant using the Black-Scholes option-pricing model.

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A summary of the activity in the stock option plans during the three months ended March 31, 2020 is set forth below:

				Weighted		Weighted
				Average		Average		Aggregate
	Number of			Exercise		Remaining		Intrinsic
	Options			Price		Contractual Term		Value
	(In thousands)					(In years)		(In thousands)
Options outstanding, January 1, 2020		616		$	19.90		4.00	$	10,904
Options granted		—			—
Options exercised		(78	)		15.20
Options forfeited		—			—
Options outstanding, March 31, 2020		538		$	20.60		3.96	$	1,892
Options vested and exercisable, March 31, 2020		502		$	19.71		3.75	$	2,207

As of March 31, 2020, there was $312 thousand of total unrecognized compensation cost related to nonvested stock options granted under the Plan. The cost is expected to be recognized over a weighted-average period of 0.77 years.

Restricted Stock Awards

During the three months ended March 31, 2020, the Company issued 958 shares of restricted stock. The shares of restricted stock generally vest over a period of four years and are considered outstanding at the date of issuance. The Company accounts for shares of restricted stock by recording the fair value of the grant on the award date as compensation expense over the vesting period.

A summary of the activity of the nonvested shares of restricted stock as of March 31, 2020 is as follows:

				Weighted
				Average Grant
	Number of			Date Fair
	Shares			Value
	(Shares in thousands)
Nonvested share awards outstanding, January 1, 2020		167		$	36.23
Share awards granted		1			37.20
Share awards vested		(7	)		24.14
Unvested share awards forfeited or cancelled		(2	)		39.00
Nonvested share awards outstanding, March 31, 2020		159		$	36.67

As of March 31, 2020, there was $4.7 million of total unrecognized compensation cost related to the restricted stock awards which is expected to be recognized over a weighted-average period of 2.72 years.

Performance Share Units (“PSUs”)

PSUs are earned subject to certain performance goals being met after the two-year performance period and will be settled in shares of Allegiance Common Stock following a one-year service period. The Company has awarded 34,628 PSUs. At March 31, 2020, there was $784 thousand of unrecognized compensation expense related to the PSUs, which is expected to be recognized over a weighted-average period of 2.02 years.

13. OFF-BALANCE SHEET ARRANGEMENTS, COMMITMENTS AND CONTINGENCIES

In the normal course of business, the Company enters into various transactions, which, in accordance with accounting principles generally accepted in the United States, are not included in the Company’s consolidated balance sheets. The Company enters into these transactions to meet the financing needs of its customers. These transactions include commitments to extend credit and standby letters of credit, which involve to varying degrees elements of credit risk and interest rate risk in excess of the amounts recognized in the consolidated balance sheets. The Company uses the same credit policies in making commitments and conditional obligations as it does for on balance sheet instruments.

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The contractual amounts of financial instruments with off-balance sheet risk are as follows:

	March 31, 2020				December 31, 2019
	Fixed		Variable		Fixed		Variable
	Rate		Rate		Rate		Rate
	(Dollars in thousands)
Commitments to extend credit	$	549,277	$	509,079	$	507,411	$	531,470
Standby letters of credit		11,945		4,955		10,843		4,309
Total	$	561,222	$	514,034	$	518,254	$	535,779

Commitments to extend credit include lines of credit as well as commitments to make new loans. Commitments to make loans are generally made for an approval period of 120 days or fewer. As of March 31, 2020, the funded fixed rate loan commitments had interest rates ranging from 1.95% to 8.40% with a weighted average maturity and rate of 3.74 years and 5.27%, respectively. As of December 31, 2019, the funded fixed rate loan commitments had interest rates ranging from 1.95% to 8.40% with a weighted average maturity and rate of 3.59 years and 5.32%, respectively.

Litigation

From time to time, the Company is subject to claims and litigation arising in the ordinary course of business. In the opinion of management, the Company is not party to any legal proceedings the resolution of which it believes would have a material adverse effect on the Company’s business, prospects, financial condition, liquidity, results of operation, cash flows or capital levels. However, one or more unfavorable outcomes in any claim or litigation against the Company could have a material adverse effect for the period in which such claim or litigation is resolved. In addition, regardless of their merits or their ultimate outcomes, such matters are costly, divert management’s attention and may materially adversely affect the Company’s reputation, even if resolved in its favor. The Company intends to defend itself vigorously against any future claims or litigation.

14. REGULATORY CAPITAL MATTERS

The Company and the Bank are subject to various regulatory capital requirements administered by the federal banking agencies. Capital adequacy guidelines, and 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 about components, risk weightings and other factors. Failure to meet minimum capital requirements can cause regulators to initiate actions that, if undertaken, could have a direct material effect on the Company’s consolidated financial statements. The final rules implementing Basel Committee on Banking Supervision's capital guideline for U.S. Banks (Basel III Rules) were fully phased in on January 1, 2019 when the capital conservation buffer reached 2.5%. Implementation of the capital conservation buffer was effective for the Company starting at the 0.625% level and increasing 0.625% each year thereafter, until it reached 2.5% on January 1, 2019. Management believes as of March 31, 2020 and December 31, 2019 the Company and the Bank met all capital adequacy requirements to which they were then subject.

Prompt corrective action regulations provide five classifications: well capitalized, adequately capitalized, undercapitalized, significantly undercapitalized, and critically undercapitalized, although these terms are not used to represent overall financial condition. If less than well 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.

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The following is a summary of the Company’s and the Bank’s actual and required capital ratios at March 31, 2020 and December 31, 2019:



	Actual					Minimum Required for Capital Adequacy Purposes					Minimum Required Plus Capital Conservation Buffer					To Be Categorized As Well Capitalized Under Prompt Corrective Action Provisions
	Amount		Ratio			Amount		Ratio			Amount		Ratio			Amount		Ratio
	(Dollars in thousands)
ALLEGIANCE BANCSHARES, INC.
(Consolidated)
As of March 31, 2020
Total Capital (to risk weighted assets)	$	600,020		14.72	%	$	326,194		8.00	%	$	428,130		10.50	%	N/A		N/A
Common Equity Tier 1 Capital (to risk weighted assets)		454,579		11.15	%		183,484		4.50	%		285,420		7.00	%	N/A		N/A
Tier 1 Capital (to risk weighted assets)		464,132		11.38	%		244,646		6.00	%		346,581		8.50	%	N/A		N/A
Tier 1 Capital (to average tangible assets)		464,132		9.89	%		187,669		4.00	%		187,669		4.00	%	N/A		N/A
As of December 31, 2019
Total Capital (to risk weighted assets)	$	596,684		14.83	%	$	321,775		8.00	%	$	422,330		10.50	%	N/A		N/A
Common Equity Tier 1 Capital (to risk weighted assets)		459,447		11.42	%		180,999		4.50	%		281,553		7.00	%	N/A		N/A
Tier 1 Capital (to risk weighted assets)		468,972		11.66	%		241,331		6.00	%		341,886		8.50	%	N/A		N/A
Tier 1 Capital (to average tangible assets)		468,972		10.02	%		187,146		4.00	%		187,146		4.00	%	N/A		N/A

ALLEGIANCE BANK
As of March 31, 2020
Total Capital (to risk weighted assets)	$	589,975		14.48	%	$	326,004		8.00	%	$	427,880		10.50	%	$	407,505		10.00	%
Common Equity Tier 1 Capital (to risk weighted assets)		512,816		12.58	%		183,377		4.50	%		285,253		7.00	%		264,878		6.50	%
Tier 1 Capital (to risk weighted assets)		512,816		12.58	%		244,503		6.00	%		346,379		8.50	%		326,004		8.00	%
Tier 1 Capital (to average tangible assets)		512,816		10.94	%		187,523		4.00	%		187,523		4.00	%		234,404		5.00	%
As of December 31, 2019
Total Capital (to risk weighted assets)	$	578,425		14.39	%	$	321,556		8.00	%	$	422,043		10.50	%	$	401,945		10.00	%
Common Equity Tier 1 Capital (to risk weighted assets)		509,372		12.67	%		180,875		4.50	%		281,362		7.00	%		261,265		6.50	%
Tier 1 Capital (to risk weighted assets)		509,372		12.67	%		241,167		6.00	%		341,654		8.50	%		321,556		8.00	%
Tier 1 Capital (to average tangible assets)		509,372		10.89	%		187,018		4.00	%		187,018		4.00	%		233,773		5.00	%

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15. EARNINGS PER COMMON SHARE

Diluted earnings per common share is computed using the weighted-average number of common shares determined for the basic earnings per common share computation plus the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock using the treasury stock method. Outstanding stock options issued by the Company represent the only dilutive effect reflected in diluted weighted average shares. Restricted shares are considered outstanding at the date of grant, accounted for as participating securities and included in basic and diluted weighted average common shares outstanding.

	Three Months Ended March 31,
	2020				2019
			Per Share				Per Share
	Amount		Amount		Amount		Amount
	(Amounts in thousands, except per share data)
Net income attributable to shareholders	$	3,516			$	12,678
Basic:
Weighted average shares outstanding		20,411	$	0.17		21,733	$	0.58

Diluted:
Add incremental shares for:
Dilutive effect of stock option exercises		279				307
Total		20,690	$	0.17		22,040	$	0.58

Stock options for 81,165 and 41,875 shares were not considered in computing diluted earnings per common share as of March 31, 2020 and 2019, respectively, as they were antidilutive.

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Except where the context otherwise requires or where otherwise indicated, in this Quarterly Report on Form 10-Q the terms “we,” “us,” “our,” “Company” and “our business” refer to Allegiance Bancshares, Inc. and our wholly-owned banking subsidiary, Allegiance Bank, a Texas banking association, and the terms “Allegiance Bank” or the “Bank” refer to Allegiance Bank. In this Quarterly Report on Form 10-Q, we refer to the Houston-The Woodlands-Sugar Land metropolitan statistical area, or MSA, and the Beaumont-Port Arthur MSA as the “Houston region.”

Cautionary Notice Regarding Forward-Looking Statements

Statements and financial discussion and analysis contained in this Quarterly Report on Form 10-Q that are not historical facts are forward-looking statements and are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. We also may make forward-looking statements in our other documents filed with or furnished to the SEC. In addition, our senior management may make forward-looking statements orally to investors, analysts, representatives of the media and others. Statements preceded by, followed by or that otherwise include the words “believes,” “expects,” “continues,” “anticipates,” “intends,” “projects,” “estimates,” “potential,” “plans” and similar expressions or future or conditional verbs such as “will,” “should,” “would,” “may” and “could” are generally forward-looking in nature and not historical facts, although not all forward-looking statements include the foregoing words. Forward-looking statements are based on assumptions and involve a number of risks and uncertainties, many of which are beyond our control, particularly with regard to developments related to the coronavirus (COVID-19) pandemic. Many possible events or factors could affect our future financial results and performance and could cause such results or performance to differ materially from those expressed in our forward-looking statements.

While there is no assurance that any list of risks and uncertainties or risk factors is complete, below are certain factors which could cause our actual results to differ from those in our forward-looking statements:

•

risks related to the concentration of our business in the Houston region, including risks associated with volatility or decreases in oil and gas prices or prolonged periods of lower oil and gas prices;

•

•general market conditions and economic trends nationally, regionally and particularly in the Houston region;

•the impact of the COVID-19 pandemic on our business, including the impact of the actions taken by governmental authorities to try and contain the virus or address the impact of the virus on the United States economy (including, without limitation, the CARES Act), and the resulting effect of all of such items on our operations, liquidity and capital position, and on the financial condition of our borrowers and other customers;

•

our ability to retain executive officers and key employees and their customer and community relationships;

•

our ability to recruit and retain successful bankers that meet our expectations in terms of customer and community relationships and profitability;

•

risks related to our strategic focus on lending to small to medium-sized businesses;

•

our ability to implement our growth strategy, including through the identification of acquisition candidates that will be accretive to our financial condition and results of operations, as well as permitting decision-making authority at the branch level;

•

risks related to any businesses we acquire in the future, including exposure to potential asset and credit quality risks and unknown or contingent liabilities, the time and costs associated with integrating systems, technology platforms, procedures and personnel, the need for additional capital to finance such transactions and possible failures in realizing the anticipated benefits from such acquisitions;

•

risks associated with our owner-occupied commercial real estate loan and other commercial real estate loan portfolios, including the risks inherent in the valuation of the collateral securing such loans;

•

risks associated with our commercial and industrial loan portfolio, including the risk for deterioration in value of the general business assets that generally secure such loans;

•

the accuracy and sufficiency of the assumptions and estimates we make in establishing reserves for potential loan losses and other estimates;

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•

risk of deteriorating asset quality and higher loan charge-offs, as well as the time and effort necessary to resolve nonperforming assets;

•

potential changes in the prices, values and sales volumes of commercial and residential real estate securing our real estate loans;

•

risks related to loans originated and serviced under the Small Business Administration’s guidelines;

•

changes in market interest rates that affect the pricing of our loans and deposits and our net interest income;

•

potential fluctuations in the market value and liquidity of the securities we hold for sale;

•

risk of impairment of investment securities, goodwill, other intangible assets or deferred tax assets;

•

the effects of competition from a wide variety of local, regional, national and other providers of financial, investment and insurance services, which may adversely affect our pricing and terms;

•

risks associated with negative public perception of the Company;

•

our ability to maintain an effective system of disclosure controls and procedures and internal controls over financial reporting;

•

risks associated with fraudulent and negligent acts by our customers, employees or vendors;

•

our ability to keep pace with technological change or difficulties when implementing new technologies;

•

risks associated with system failures or failures to protect against cybersecurity threats, such as breaches of our network security;

•

our ability to comply with privacy laws and properly safeguard personal, confidential or proprietary information;

•

risks associated with data processing system failures and errors;

•

potential risk of environmental liability related to owning or foreclosing on real property;

•

the institution and outcome of litigation and other legal proceeding against us or to which we become subject;

•

our ability to maintain adequate liquidity and to raise necessary capital to fund our acquisition strategy and operations or to meet increased minimum regulatory capital levels;

•

our ability to comply with various governmental and regulatory requirements applicable to financial institutions;

•

the impact of recent and future legislative and regulatory changes, including changes in banking, securities and tax laws and regulations and their application by our regulators;

•

governmental monetary and fiscal policies, including the policies of the Federal Reserve;

•

our ability to comply with supervisory actions by federal and state banking agencies;

•

changes in the scope and cost of FDIC insurance and other coverage;

•

systemic risks associated with the soundness of other financial institutions;

•

the effects of war or other conflicts, acts of terrorism (including cyberattacks) or other catastrophic events, including pandemics, storms, droughts, tornadoes and flooding, that may affect general economic conditions; and

•

other risks and uncertainties listed from time to time in our reports and documents filed with the SEC.

Further, these forward-looking statements speak only as of the date on which they were made and we disclaim any obligation to update or revise any forward-looking statements to reflect events or circumstances after the date on which any such statement is made or to reflect the occurrence of unanticipated events, unless required to do so under the federal securities laws. Other factors not identified above, including those described under the headings “Risk Factors”, "Quantitative and Qualitative Disclosures about Market Risk" and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in this Quarterly Report on Form 10-Q for the quarter ended March 31, 2020 and in our Annual Report on Form 10-K for the year ended December 31, 2019 may also cause actual results to differ materially from those described in our forward-looking statements. Most of these factors are difficult to anticipate and are generally beyond our control. You should consider these factors in connection with considering any forward-looking statements that may be made by us. Because of these uncertainties, you should not place undue reliance on any forward-looking statement.

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Overview

We generate most of our income from interest income on loans, service charges on customer accounts and interest income from investments in securities. We incur interest expense on deposits and other borrowed funds and noninterest expenses such as salaries and employee benefits and occupancy expenses. Net interest income is the difference between interest income on earning assets such as loans and securities and interest expense on liabilities such as deposits and borrowings that are used to fund those assets. Net interest income is our largest source of revenue. To evaluate net interest income, we measure and monitor (1) yields on our loans and other interest-earning assets, (2) the interest expenses of our deposits and other funding sources, (3) our net interest spread and (4) our net interest margin. Net interest spread is the difference between rates earned on interest-earning assets and rates paid on interest-bearing liabilities. Net interest margin is calculated as net interest income divided by average interest-earning assets. Because noninterest-bearing sources of funds, such as noninterest-bearing deposits and shareholders’ equity, also fund interest-earning assets, net interest margin includes the benefit of these noninterest-bearing sources.

Our net interest income is affected by changes in the amount and mix of interest-earning assets and interest-bearing liabilities, referred to as a “volume change.” Periodic changes in the volume and types of loans in our loan portfolio are affected by, among other factors, economic and competitive conditions in Texas and specifically in the Houston region, as well as developments affecting the real estate, technology, financial services, insurance, transportation, manufacturing and energy sectors within our target market and throughout the state of Texas.

Our net interest income is also affected by changes in yields earned on interest-earning assets and rates paid on interest-bearing deposits and borrowed funds, referred to as a “rate change.” Fluctuations in market interest rates are driven by many factors, including governmental monetary policies, inflation, deflation, macroeconomic developments, changes in unemployment, the money supply, political and international conditions and conditions in domestic and foreign financial markets.

Our objective is to grow and strengthen our community banking franchise by deploying our super-community banking strategy and pursuing select strategic acquisitions in the Houston region. We have made the strategic decision to focus on the Houston region because of our deep roots and experience operating through a variety of economic cycles in this large and vibrant market. We are positioned to be a leading provider of customized commercial banking services by emphasizing the strength and capabilities of local bank office management and by providing superior customer service.

Super-community banking strategy. Our super-community banking strategy emphasizes local delivery of the excellent customer service associated with community banking combined with the products, efficiencies and scale associated with larger banks. By empowering our personnel to make certain business decisions at a local level in order to respond quickly to customers’ needs, we are able to establish and foster strong relationships with customers through superior service. We operate full-service bank offices and employ bankers with strong underwriting credentials who are authorized to make loan and underwriting decisions up to prescribed limits at the bank office level. We support bank office operations with a centralized credit approval process for larger credit relationships, loan operations, information technology, core data processing, accounting, finance, treasury and treasury management support, deposit operations and executive and board oversight. We emphasize lending to and banking with small to medium-sized businesses, with which we believe we can establish stronger relationships through excellent service and provide lending that can be priced on terms that are more attractive to the Company than would be achieved by lending to larger businesses. We believe this approach produces a clear competitive advantage by delivering an extraordinary customer experience and fostering a culture dedicated to achieving superior external and internal service levels.

We plan to continue to emphasize our super-community banking strategy to organically grow our presence in the Houston region through:

•

increasing the productivity of existing bankers, as measured by loans, deposits and fee income per banker, while enhancing profitability by leveraging our existing operating platform;

•

focusing on local and individualized decision-making, allowing us to provide customers with rapid decisions on loan requests, which we believe allows us to effectively compete with larger financial institutions;

•

identifying and hiring additional seasoned bankers in the Houston region who will thrive within our super-community banking model, and opening additional branches where we are able to attract seasoned bankers; and

•

developing new products designed to serve the increasingly diversified Houston economy, while preserving our strong culture of risk management.

Select strategic acquisitions. We intend to continue to expand our market position in the Houston region through organic growth, the development of de novo branch locations and a disciplined acquisition strategy. We focus on like-minded community

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banks with similar lending strategies to our own when evaluating acquisition opportunities. We believe that our management’s experience in assessing, executing and integrating target institutions will allow us to capitalize on acquisition opportunities

COVID-19 Update

The COVID-19 pandemic has placed significant health, economic and other major pressure throughout the Houston region we serve, the state of Texas, the United States and the entire world. We executed on our pre-existing pandemic response plan with procedures in response to the pandemic to support the safety and well-being of our employees, customers and shareholders that continue through the date of this report:

• While all of our 27 bank offices generally remain open to customers, we have taken steps to address safety issues by offering in-person visits by appointment only and are encouraging most of our traffic to leverage our drive-thrus, following the guidelines of the Centers for Disease Control and Prevention (CDC).

• We are encouraging the use of available eBanking tools and financial education resources.

•

We have provided extensions and deferrals to our loan customers who were not 30 days past due.

•

We are actively participating in assisting our customers and non-customers with applications for resources through the CARES Act’s PPP, administered by the SBA, which will provide government guaranteed and forgivable loans. Through April 26, 2020, we have approved over 3,500 loans in excess of $640 million. We believe these loans and our participation in the program will provide support for our customers and small businesses in the communities we serve.

•

Our team is at full-strength with 300 employees utilizing the work-from-home program implemented pursuant to the pre-existing pandemic plan.

•We are working to ensure the health and safety of our in-office teams with split team rotations, providing CDC-recommended supplies and implementing additional routine cleaning measures to all offices and departments.

•

We held our Annual Shareholders’ Meeting virtually.

Additionally, we recorded an increased provision for the three months ended March 31, 2020 driven by the increase in charge-offs, the stress on our loan portfolio from the increase in unemployment and economic effects of the COVID-19 pandemic and the economic effects related to the sharp decline in crude oil prices, and further increases may be necessary. We continue to closely monitor this pandemic and expect to continue to adjust our operations in response to the pandemic as the situation evolves.

Critical Accounting Policies

Our accounting policies are integral to understanding our results of operations. Our accounting policies are described in detail in Note 1 to our Annual Report on Form 10-K for the year ended December 31, 2019. We did not adopt ASU 2016-13, "Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments" (CECL), which became effective for us on January 1, 2020, as previously stated in our Form 10-K. Due to the uncertainty on the economy and unemployment from COVID-19 and the sharp decline in crude oil prices, management has determined to delay its implementation of CECL and has calculated and recorded its provision for loan losses under the incurred loss model that existed prior to CECL.

We believe that of our accounting policies, the following may involve a higher degree of judgment and complexity:

Securities

Debt securities are classified as available for sale when they might be sold before maturity. Securities available for sale are carried at fair value. Unrealized gains and losses are excluded from earnings and reported, net of tax, as a separate component of shareholders’ equity until realized. Securities within the available for sale portfolio may be used as part of our asset/liability strategy and may be sold in response to changes in interest rate risk, prepayment risk or other similar economic factors.

Interest earned on these assets is included in interest income. Interest income includes amortization of purchase premiums and discounts. Amortization of premiums and discounts are recognized in interest income over the period to maturity using the interest

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method, except for premiums on callable debt securities, which are amortized to their earliest call date. Gains and losses on the sale of securities are recorded on the trade date and are determined using the specific-identification method.

Management evaluates debt securities for other-than-temporary impairment (“OTTI”) on at least a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation. For securities in an unrealized loss position, management considers the extent and duration of the unrealized loss and the financial condition and near-term prospects of the issuer. Management also assesses whether it intends to sell, or it is more likely than not that it will be required to sell, a security in an unrealized loss position before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the entire difference between amortized cost and fair value is recognized as impairment through earnings. For debt securities that do not meet the aforementioned criteria, the amount of impairment is split into two components as follows: (1) OTTI related to credit loss, which must be recognized in the income statement, and (2) OTTI related to other factors, which is recognized in other comprehensive income, net of applicable taxes. The credit loss is defined as the difference between the present value of the cash flows expected to be collected and the amortized cost basis. The previous amortized cost basis less the OTTI recognized in earnings becomes the new amortized cost basis of the security.

Nonperforming and Past Due Loans

Loans are placed on nonaccrual status when payment in full of principal or interest is not expected or upon which principal or interest has been in default for a period of 90 days or more unless the asset is both well secured and in the process of collection. If the decision is made to continue accruing interest on the loan, periodic reviews are made to confirm the accruing status of the loan. Nonaccrual loans and loans past due 90 days include both smaller balance homogeneous loans that are collectively evaluated for impairment and individually classified impaired loans.

When available information confirms that specific loans, or portions thereof, are uncollectible, these amounts are charged off against the allowance. All loan types are considered delinquent after 30 days past due and are typically charged off or charged down no later than 120 days past due, with consideration of, but not limited to, the following criteria in determining the need and optional timing of the charge-off or charge-down: (1) the Bank is in the process of repossession or foreclosure and there appears to be a likely deficiency, (2) the collateral securing the loan has been sold and there is an actual deficiency, (3) the Bank is proceeding with lengthy legal action to collect its balance, (4) the borrower is unable to be located or (5) the borrower has filed bankruptcy. Events requiring charge-offs occur when a shortfall is identified between the recorded investment in the loan and the underlying value of the collateral.

Allowance for Loan Losses

The allowance for loan losses is a valuation allowance that is established through charges to income in the form of a provision for loan losses. The amount of the allowance for loan losses is affected by the following: (1) charge-offs of loans that decrease the allowance, (2) subsequent recoveries on loans previously charged off that increase the allowance and (3) provisions for loan losses charged to income that increase the allowance. Our allowance could lack comparability to those institutions that have adopted CECL.

Throughout the year, management estimates the probable incurred losses in the loan portfolio to determine if the allowance for loan losses is adequate to absorb such losses. The allowance for loan losses consists of specific and general components. The specific component relates to loans that are individually classified as impaired. We follow a loan review program to evaluate the credit risk in the loan portfolio. Loans that have been identified as impaired are reviewed on a quarterly basis in order to determine whether a specific reserve is required. The general component covers non-impaired loans and is based on industry and our specific historical loan loss experience, volume, growth and composition of the loan portfolio, the evaluation of our loan portfolio through our internal loan review process, general current economic conditions both internal and external to us that may affect the borrower’s ability to pay, value of collateral and other qualitative relevant risk factors. Based on a review of these estimates, we adjust the allowance for loan losses to a level determined by management to be adequate. Estimates of loan losses are inherently subjective as they involve an exercise of judgment.

Our allowance for loan losses, both in dollars and as a percentage of total loans, is impacted by acquisition accounting. As part of acquisition accounting, acquired loans are initially recognized at fair value with no corresponding allowance for loan losses. Initial fair value of the loans includes consideration of expected credit losses.

Loans for which the terms have been modified, and for which the borrower is experiencing financial difficulties, are considered troubled debt restructurings and therefore classified as impaired. Subsequent to identification as a troubled debt restructuring, such loans are then evaluated for impairment on an individual basis whereby we determine the amount of reserve in accordance with the accounting policy for the impaired loans as part of our allowance for loan losses calculation. If a loan is impaired,

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a specific valuation allowance is allocated, if necessary, 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 of collateral if repayment is expected solely from the collateral.

The provisions of the CARES Act included an election not to apply the guidance on accounting for troubled debt restructurings to loan modifications, such as extensions or deferrals, related to COVID-19 made between March 1, 2020 and the earlier of (i) December 31, 2020 or (ii) 60 days after the end of the COVID-19 national emergency. The relief was only to be applied to modifications for borrowers that were not more than 30 days past due. The Company elected to adopt these provisions of the CARES Act.

Goodwill

Goodwill resulting from business combinations is generally determined as the excess of the fair value of the consideration transferred, plus the fair value of any noncontrolling interests in the acquiree, over the fair value of the net assets acquired and liabilities assumed as of the acquisition date. Goodwill is assessed annually for impairment or when events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. Goodwill acquired in a purchase business combination that is determined to have an indefinite useful life, is not amortized, but tested for impairment. Goodwill is the only intangible asset with an indefinite life on our balance sheet. We perform our annual impairment review during the fourth quarter, as of October 1^st. However, if we become aware of quantitative or qualitative data that suggests goodwill impairment has occurred, we will test on an interim basis as well. At March 31, 2020, our book value per share was higher than our market value per share; therefore, we performed a goodwill impairment assessment as of March 31, 2020 and concluded there was no evidence of impairment.

Recently Issued Accounting Pronouncements

We have evaluated new accounting pronouncements that have recently been issued and have determined that there are no new accounting pronouncements that should be described in this section that will impact the Company’s operations, financial condition or liquidity in future periods. Refer to Note 1 of the Company’s consolidated financial statements for a discussion of recent accounting pronouncements that have been adopted by the Company or that will require enhanced disclosures in the Company’s financial statements in future periods.

Results of Operations

Net income was $3.5 million, or $0.17 per diluted share, for the first quarter 2020 compared to $12.7 million, or $0.58 per diluted share, for the first quarter 2019. The first quarter 2020 results were negatively impacted by the increased provision expense and write-downs in other real estate in response to COVID-19-related uncertainties in the current economic environment. Annualized returns on average assets, average shareholders’ equity and average tangible shareholders’ equity were 0.29%, 1.98% and 3.02%, respectively, compared to 1.08%, 7.27% and 11.22%, respectively, for the three months ended March 31, 2020 and 2019, respectively. Average return on tangible shareholders’ equity is a non-GAAP financial measure. See the GAAP to non-GAAP reconciliation table provided for a more detailed analysis. The efficiency ratio increased to 68.13% for the first quarter 2020 from 64.97% for the first quarter 2019 primarily due to write-downs in other real estate during the first quarter 2020. The efficiency ratio is calculated by dividing total noninterest expense by the sum of net interest income plus noninterest income, excluding net gains and losses on the sale of loans, securities and assets. Additionally, taxes and provision for loan losses are not part of the efficiency ratio calculation.

Net Interest Income

Three months ended March 31, 2020 compared with three months ended March 31, 2019. Net interest income before the provision for loan losses for the three months ended March 31, 2020 was $45.0 million compared with $44.6 million for the three months ended March 31, 2019, an increase of $422 thousand, or 0.9%. The increase in net interest income was primarily due to the increase in average interest-earning asset balances and lower funding costs on interest bearing liabilities.

Interest income was $57.5 million for the three months ended March 31, 2020, an increase of $303 thousand, or 0.5%, compared with the three months ended March 31, 2019, primarily due to an increase in interest income and fees on loans as a result of organic growth, partially offset by a decrease in the yield on loans, and increased income and yield on the securities portfolio. Average loans outstanding increased $186.1 million, or 5.0%, for the same period. The average yield on loans decreased to 5.59% for the three months ended March 31, 2020 from 5.86% for the same period in 2019. Interest income also includes acquisition accounting loan discount accretion which decreased to $1.1 million during the three months ended March 31, 2020 from $2.7 million for the same period in 2019.

Interest expense was $12.4 million for the three months ended March 31, 2020, a decrease of $119 thousand, or 0.9%, compared to the three months ended March 31, 2019. This decrease was primarily due to lower funding costs on FHLB borrowings

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and interest-bearing deposits partially offset by an increase in average interest-bearing liabilities. The cost of average interest-bearing liabilities decreased to 168 basis points for the three months ended March 31, 2020 compared to 178 basis points for the same period in 2019. Average interest-bearing liabilities increased $120.4 million for the three months ended March 31, 2020 compared to the three months ended March 31, 2019 primarily due to organic deposit growth and subordinated debt partially offset by a decrease in borrowed funds.

Tax equivalent net interest margin, defined as net interest income adjusted for tax-free income divided by average interest-earning assets, for the three months ended March 31, 2020 was 4.15%, a decrease of 16 basis points compared to 4.31% for the three months ended March 31, 2019. The decrease in the net interest margin on a tax equivalent basis was primarily due to the decrease in average yield on interest-earning assets, due in part to lower acquisition accounting loan discount accretion, partially offset by the decrease in funding costs. The average yield on interest-earning assets of 5.28% and the average rate paid on interest-bearing liabilities of 1.68% for the first quarter 2020 decreased by 22 basis points and 10 basis points, respectively, over the same period in 2019. The average yield on interest-earning assets and the average rate paid on interest-bearing liabilities are primarily impacted by changes in market interest rates as well as changes in the volume and relative mix of the underlying assets and liabilities. The impact of net acquisition accounting adjustments of $1.3 million and $3.0 million on the tax equivalent net interest margin was an increase of 11 basis points and 28 basis points for the three months ended March 31, 2020 and 2019, respectively. Tax equivalent adjustments to net interest margin are the result of increasing income from tax-free securities by an amount equal to the taxes that would have been paid if the income were fully taxable based on a 21% federal tax rate for the three months ended March 31, 2020 and 2019, thus making tax-exempt yields comparable to taxable asset yields.

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The following table presents, for the periods indicated, the total dollar amount of average balances, interest income from average interest-earning assets and the annualized resultant yields, as well as the interest expense on average interest-bearing liabilities, expressed in both dollars and rates. Any nonaccruing loans have been included in the table as loans carrying a zero yield.

	Three Months Ended March 31,
	2020								2019
	Average Balance			Interest Earned/ Interest Paid		Average Yield/ Rate			Average Balance			Interest Earned/ Interest Paid		Average Yield/ Rate
	(Dollars in thousands)
Assets
Interest-earning Assets:
Loans	$	3,933,291		$	54,624		5.59	%	$	3,747,234		$	54,189		5.86	%
Securities		388,721			2,633		2.72	%		346,686			2,272		2.66	%
Deposits in other financial institutions		50,711			195		1.55	%		118,749			688		2.35	%
Total interest-earning assets		4,372,723		$	57,452		5.28	%		4,212,669		$	57,149		5.50	%
Allowance for loan losses		(28,718	)							(26,760	)
Noninterest-earning assets		602,778								559,763
Total assets	$	4,946,783							$	4,745,672

Liabilities and Shareholders' Equity
Interest-bearing Liabilities:
Interest-bearing demand deposits	$	363,326		$	846		0.94	%	$	338,193		$	963		1.16	%
Money market and savings deposits		1,168,541			3,518		1.21	%		880,138			2,765		1.27	%
Certificates and other time deposits		1,193,427			6,084		2.05	%		1,302,958			6,256		1.95	%
Borrowed funds		140,999			506		1.44	%		283,566			1,827		2.61	%
Subordinated debt		107,865			1,473		5.49	%		48,925			735		6.09	%
Total interest-bearing liabilities		2,974,158		$	12,427		1.68	%		2,853,780		$	12,546		1.78	%

Noninterest-Bearing Liabilities:
Noninterest-bearing demand deposits		1,225,888								1,167,172
Other liabilities		33,202								17,054
Total liabilities		4,233,248								4,038,006
Shareholders' equity		713,535								707,666
Total liabilities and shareholders' equity	$	4,946,783							$	4,745,672

Net interest rate spread							3.60	%							3.72	%

Net interest income and margin⁽¹⁾				$	45,025		4.14	%				$	44,603		4.29	%

Net interest income and margin (tax equivalent)⁽²⁾				$	45,152		4.15	%				$	44,805		4.31	%

(1)	The net interest margin is equal to annualized net interest income divided by average interest-earning assets.

(2)

In order to make pretax income and resultant yields on tax-exempt investments and loans comparable to those on taxable investments and loans, a tax-equivalent adjustment has been computed using a federal income tax rate of 21% for the three months ended March 31, 2020 and 2019 and other applicable effective tax rates.

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The following table presents information regarding the dollar amount of changes in interest income and interest expense for the periods indicated for each major component of interest-earnings assets and interest-bearing liabilities and distinguishes between the changes attributable to changes in volume and changes in interest rates. For purposes of this table, changes attributable to both rate and volume that cannot be segregated have been allocated to rate.

	For the Three Months Ended March 31,
	2020 vs. 2019
	Increase (Decrease) Due to Change in
	Volume			Rate			Total
	(Dollars in thousands)
Interest-earning Assets:
Loans	$	3,323		$	(2,888	)	$	435
Securities		304			57			361
Deposits in other financial institutions		(391	)		(102	)		(493	)
Total increase (decrease) in interest income		3,236			(2,933	)		303

Interest-bearing Liabilities:
Interest-bearing demand deposits		83			(200	)		(117	)
Money market and savings deposits		946			(193	)		753
Certificates and other time deposits		(462	)		290			(172	)
Borrowed funds		(909	)		(412	)		(1,321	)
Subordinated debt		903			(165	)		738
Total increase (decrease) in interest expense		561			(680	)		(119	)
Increase (decrease) in net interest income	$	2,675		$	(2,253	)	$	422

Provision for Loan Losses

Our allowance for loan losses is established through charges to income in the form of the provision in order to bring our allowance for loan losses to a level deemed appropriate by management. The allowance for loan losses was $37.5 million at March 31, 2020 and $29.4 million at December 31, 2019, representing 0.95% and 0.75% of total loans, respectively. We recorded an $11.0 million and $1.0 million provision for loan losses for the three months ended March 31, 2020 and 2019, respectively. The increase in the provision for the three months ended March 31, 2020 compared to the three months ended March 31, 2019 was driven by the increase in charge-offs, the stress on our loan portfolio from the increase in unemployment and economic effects of the COVID-19 pandemic and the economic effects related to the sharp decline in crude oil prices.

Acquired loans are initially recorded at fair value based on a discounted cash flow valuation methodology that considers, among other things, projected default rates, losses given existing defaults and recovery rates. Loans acquired from Post Oak and LoweryBank were initially recorded at fair value and no corresponding allowance for loan losses was recorded for these loans at acquisition date. We recognized a discount on the acquired loans which a portion will be prospectively accreted, increasing our basis in such loans. At March 31, 2020, the balance of the acquisition accounting loan discount was $4.3 million.

Noninterest Income

Our primary sources of noninterest income are service charges on deposit accounts, nonsufficient funds fees, rebates from our correspondent bank and debit card and ATM card income. Noninterest income does not include loan origination fees which are recognized over the life of the related loan as an adjustment to yield using the interest method.

Three months ended March 31, 2020 compared with three months ended March 31, 2019. Noninterest income totaled $2.7 million for the three months ended March 31, 2020 compared with $3.3 million for the same period in 2019, a decrease of $564 thousand, or 17.1%, partially due to the decrease in rebates from correspondent bank as a result of the decline in the earnings credit rate slightly offset by the gain on sale of securities during the first quarter 2020.

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The following table presents, for the periods indicated, the major categories of noninterest income:

	For the Three Months
	Ended March 31,					Increase
	2020			2019		(Decrease)
	(Dollars in thousands)
Nonsufficient funds fees	$	169		$	162	$	7
Service charges on deposit accounts		457			325		132
Gain on sale of securities		194			—		194
(Loss) gain on sale of other real estate		(69	)		1		(70	)
Bank owned life insurance income		151			159		(8	)
Debit card and ATM card income		485			450		35
Rebate from correspondent bank		493			896		(403	)
Other⁽¹⁾		845			1,296		(451	)
Total noninterest income	$	2,725		$	3,289	$	(564	)

(1)	Other includes wire transfer and letter of credit fees, among other items.

Noninterest Expense

Three months ended March 31, 2020 compared with three months ended March 31, 2019. Noninterest expense was $32.4 million for the three months ended March 31, 2020 compared to $31.1 million for the three months ended March 31, 2019, an increase of $1.3 million, or 4.1%. This increase was primarily due to write-downs of other real estate recorded during the first quarter 2020. The first quarter of 2019 included acquisition and merger-related expenses of $1.2 million associated with the Post Oak and LoweryBank branch acquisitions.

The following table presents, for the periods indicated, the major categories of noninterest expense:

	For the Three Months
	Ended March 31,				Increase
	2020		2019		(Decrease)
	(Dollars in thousands)
Salaries and employee benefits⁽¹⁾	$	19,781	$	19,684	$	97
Net occupancy and equipment		1,907		2,098		(191	)
Depreciation		866		753		113
Data processing and software amortization		1,826		1,577		249
Professional fees		573		599		(26	)
Regulatory assessments and FDIC insurance		632		728		(96	)
Core deposit intangibles amortization		990		1,178		(188	)
Communications		417		430		(13	)
Advertising		521		704		(183	)
Acquisition and merger-related expenses		—		1,173		(1,173	)
Other real estate expense		2,649		96		2,553
Printing and supplies		106		203		(97	)
Other		2,133		1,892		241
Total noninterest expense	$	32,401	$	31,115	$	1,286

(1)	Total salaries and employee benefits includes $804 thousand and $607 thousand for the three months ended March 31, 2020 and 2019, respectively, of stock based compensation expense.

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Salaries and employee benefits. Salaries and benefits increased $97 thousand, or 0.5%, for the three months ended March 31, 2020 compared to the same period in 2019 primarily due to a slight increase in the total size of our workforce between these periods as our full-time equivalent employees increased to 587 at March 31, 2020 from 584 as of March 31, 2019.

Data Processing and software amortization. Data processing and software amortization increased $249 thousand, or 15.8%, for the three months ended March 31, 2020 compared to the same period in 2019 primarily due to expenses related to the enhancement of the Bank’s loan onboarding platform in order to improve the customer experience and increase efficiencies.

Acquisition and merger-related expenses. Acquisition and merger-related expenses were primarily legal, advisory and accounting fees associated with the Post Oak acquisition. These expenses also included data processing conversion costs, severance and contract termination costs incurred during the first quarter 2019.

Other real estate expense. Other real estate expense increased $2.6 million for the three months ended March 31, 2020 compared to the same period in 2019 primarily due to $2.2 million in write-downs on several foreclosed properties and related expenses associated with these properties.

Efficiency Ratio

The efficiency ratio is a supplemental financial measure utilized in management’s internal evaluation of our performance. We calculate our efficiency ratio by dividing total noninterest expense by the sum of net interest income and noninterest income, excluding net gains and losses on the sale of loans, securities and assets. Additionally, taxes and provision for loan losses are not part of this calculation. An increase in the efficiency ratio indicates that more resources are being utilized to generate the same volume of income, while a decrease would indicate a more efficient allocation of resources. Our efficiency ratio was 68.13% and 64.97% for the three months ended March 31, 2020 and 2019, respectively.

We monitor the efficiency ratio in comparison with changes in our total assets and loans, and we believe that maintaining or reducing the efficiency ratio during periods of growth, as we did from 2017 to 2019, demonstrates the scalability of our operating platform. We expect to continue to benefit from our scalable platform in future periods as we continue to monitor overhead expenses necessary to support our growth.

Income Taxes

The amount of federal and state income tax expense is influenced by the amount of pre-tax income, tax-exempt income and other nondeductible expenses. Income tax expense decreased $2.3 million, or 72.8%, to $843 thousand for the three months ended March 31, 2020 compared with $3.1 million for the same period in 2019 primarily due to the decrease in pre-tax net income. Our effective tax rate was 19.3% and 19.6% for the three months ended March 31, 2020 and 2019, respectively.

Financial Condition

Loan Portfolio

At March 31, 2020, total loans were $3.96 billion, an increase of $40.2 million, or 1.0%, compared with December 31, 2019, primarily due to organic growth within our loan portfolio.

Total loans as a percentage of deposits were 100.0% and 96.2% as of March 31, 2020 and December 31, 2019, respectively. Total loans as a percentage of assets were 79.1% and 78.4% as of March 31, 2020 and December 31, 2019, respectively.

Lending activities originate from the efforts of our lenders, with an emphasis on lending to small to medium-sized businesses and companies, professionals and individuals located in the Houston region.

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The following table summarizes our loan portfolio by type of loan as of the dates indicated:

	March 31, 2020						December 31, 2019
	Amount			Percent			Amount			Percent
	(Dollars in thousands)
Commercial and industrial	$	702,267			17.9	%	$	689,360			17.6	%
Mortgage warehouse		1,051			0.0	%		8,304			0.2	%
Real estate:
Commercial real estate (including multi-family residential)		1,951,080			49.2	%		1,873,782			47.9	%
Commercial real estate construction and land development		378,987			9.6	%		410,471			10.5	%
1-4 family residential (including home equity)		704,212			17.8	%		698,957			17.8	%
Residential construction		177,025			4.5	%		192,515			4.9	%
Consumer and other		40,924			1.0	%		41,921			1.1	%
Total loans		3,955,546			100.0	%		3,915,310			100.0	%
Allowance for Loan Losses		(37,511	)					(29,438	)
Loans, net	$	3,918,035					$	3,885,872

The principal categories of our loan portfolio are discussed below:

Commercial and Industrial. We make commercial and industrial loans in our market area that are underwritten primarily on the basis of the borrower’s ability to service the debt from income. Our commercial and industrial loan portfolio increased by $12.9 million, or 1.9%, to $702.3 million as of March 31, 2020 from $689.4 million as of December 31, 2019.

Mortgage Warehouse. We make loans to unaffiliated mortgage loan originators collateralized by mortgage promissory notes which are segregated in our mortgage warehouse portfolio. These promissory notes originated by our mortgage warehouse customers carry terms and conditions as would be expected in the competitive permanent mortgage market and serve as collateral under a traditional mortgage warehouse arrangement whereby such promissory notes are warehoused under a revolving credit facility to allow for the end investor (or purchaser) of the note to receive a complete loan package and remit funds to the bank. For mortgage promissory notes secured by residential property, the warehouse time is normally 10 to 20 days. For mortgage promissory notes secured by commercial property, the warehouse time is normally 40 to 50 days. The funded balance of the mortgage warehouse portfolio can have significant fluctuation based upon market demand for the product, level of home sales and refinancing activity, market interest rates, and velocity of end investor processing times. Volumes of the portfolio tend to peak at the end of each month. Our mortgage warehouse portfolio decreased $7.3 million, or 87.3%, to $1.1 million as of March 31, 2020 from $8.3 million at December 31, 2019 as we made the strategic decision to exit this line of business during the second quarter of 2019.

Commercial Real Estate (Including Multi-Family Residential). We make loans collateralized by owner-occupied, nonowner-occupied and multi-family real estate to finance the purchase or ownership of real estate. As of March 31, 2020 and December 31, 2019, 53.0% and 53.8%, respectively, of our commercial real estate loans were owner-occupied. Our commercial real estate loan portfolio increased $77.3 million, or 4.1%, to $1.95 billion as of March 31, 2020 from $1.87 billion as of December 31, 2019, as a result of organic loan growth. Included in our commercial real estate portfolio are multi-family residential loans. Our multi-family loans decreased to $76.5 million as of March 31, 2020 from $82.2 million as of December 31, 2019. We had 147 multi-family loans with an average loan size of $521 thousand as of March 31, 2020.

Commercial Real Estate Construction and Land Development. We make commercial real estate construction and land development loans to fund commercial construction, land acquisition and real estate development construction. Commercial real estate construction and land development loans decreased $31.5 million, or 7.7%, to $379.0 million as of March 31, 2020 compared to $410.5 million as of December 31, 2019.

1-4 Family Residential (Including Home Equity). Our residential real estate loans include the origination of 1-4 family residential mortgage loans (including home equity and home improvement loans and home equity lines of credit) collateralized by owner-occupied residential properties located in our market area. Our residential real estate portfolio (including home equity) increased $5.3 million, or 0.8%, to $704.2 million as of March 31, 2020 from $699.0 million as of December 31, 2019. The home equity, home improvement and home equity lines of credit portion of our residential real estate portfolio increased $1.1 million, or 1.0%, to $113.6 million as of March 31, 2020 from $112.5 million as of December 31, 2019.

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Residential Construction. We make residential construction loans to home builders and individuals to fund the construction of single-family residences with the understanding that such loans will be repaid from the proceeds of the sale of the homes by builders or with the proceeds of a mortgage loan. These loans are secured by the real property being built and are made based on our assessment of the value of the property on an as-completed basis. Our residential construction loans portfolio decreased $15.5 million, or 8.0%, to $177.0 million as of March 31, 2020 from $192.5 million as of December 31, 2019.

Consumer and Other. Our consumer and other loan portfolio is made up of loans made to individuals for personal purposes. Our consumer and other loan portfolio decreased $997 thousand, or 2.4%, to $40.9 million as of March 31, 2020 from $41.9 million as of December 31, 2019.

“At-Risk” Industry Loan Exposure due to Economic Stress Resulting from COVID-19 Impacts. While all industries have and will continue to experience adverse impacts as a result of the COVID-19 pandemic, we have exposure in the following loan categories considered to be more “at-risk” of significant impact.

Oil and Gas. Our oil and gas loans at March 31, 2020 totaled $80.7 million, or 2.0% of total loans, of which $826 thousand were on nonaccrual status. At March 31, 2020, our allowance for loan losses allocated to our total oil and gas loan portfolio was 1.5% of total oil and gas loans. At March 31, 2020, we did not have exposure to exploration and production (“E&P”) or reserve-based lending and only had minimal exposure to the industry. Crude oil prices decreased sharply in the second half of the first quarter 2020 and remained near 20-year lows at the date of this report, which has adversely impacted these loans, increasing our classified oil and gas loans. Expanded monitoring and analysis of these loans has been implemented to address the decline in oil and gas prices as needed.

Hotel. Our hotel loans at March 31, 2020 totaled $133.0 million, or 3.4% of total loans, none of which were on nonaccrual status. At March 31, 2020, our allowance for loan losses allocated to our total hotel loan portfolio totaled 1.0% of total hotel loans.

Restaurant and Bars. Our restaurant and bar loans at March 31, 2020 totaled $101.3 million, or 2.6% of total loans, $794 thousand of which were on nonaccrual status. At March 31, 2020, our allowance for loan losses allocated to our total restaurant and bar loan portfolio was 1.2% of total restaurant and bar loans.

Asset Quality

Nonperforming Assets

We have procedures in place to assist us in maintaining the overall quality of our loan portfolio. We have established underwriting guidelines to be followed by our officers and monitor our delinquency levels for any negative or adverse trends.

We had $21.6 million and $28.4 million in nonperforming loans as of March 31, 2020 and December 31, 2019, respectively.

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The following table presents information regarding nonperforming assets as of the dates indicated.

	As of March 31, 2020			As of December 31, 2019
	(Dollars in thousands)
Nonaccrual loans:
Commercial and industrial	$	8,669		$	8,388
Mortgage warehouse		—			—
Real estate:
Commercial real estate (including multi-family residential)		7,024			6,741
Commercial real estate construction and land development		1,958			9,050
1-4 family residential (including home equity)		2,845			3,294
Residential construction		982			746
Consumer and other		143			152
Total nonaccrual loans		21,621			28,371
Accruing loans 90 or more days past due		—			—
Total nonperforming loans		21,621			28,371
Other real estate		12,617			8,337
Other repossessed assets		—			—
Total nonperforming assets	$	34,238		$	36,708
Restructured loans⁽¹⁾	$	18,407		$	19,239
Nonperforming assets to total assets		0.68	%		0.74	%
Nonperforming loans to total loans		0.55	%		0.72	%

(1)	Restructured loans represent the balance at the end of the respective period for those loans modified in a troubled debt restructuring that are not already presented as a nonperforming loan.

Potential problem loans are included in the loans that are accruing, restructured and impaired that are performing in accordance with contractual terms but for which management has concerns about the ability of an obligor to continue to comply with repayment terms because of the obligor’s potential operating or financial difficulties. Management monitors these loans closely and reviews their performance on a regular basis. Potential problem loans contain potential weaknesses that could improve, persist or further deteriorate. At March 31, 2020 and December 31, 2019, we had $26.8 million and $20.2 million, respectively, in loans of this type which are not included in any of the nonaccrual or 90 days past due loan categories. At March 31, 2020, potential problem loans consisted of 28 credit relationships. Of the total outstanding balance at March 31, 2020, 26.3% related to one customer in the hospitality industry, 25.7% to one customer in the commercial rental property industry, 16.7% to eight customers in the energy industry, 13.6% to two customers in the consumer services industry, 8.8% to one customer in the residential rental real estate industry, 3.4% to one customer in the medical industry, 2.8% to four customers in the commercial services industry, 1.5% to one customer in the convenience store industry, 0.8% to two customers in the wholesale industry, 0.2% to four customers in the trucking industry, 0.1% to two customers in the construction services industry and 0.1% to one customer with a consumer loan. Weakness in these organizations’ operating performance, financial condition and borrowing base deficits for certain energy-related credits, among other factors, have caused us to heighten the attention given to these credits. Potential problem loans impact the allocation of our allowance for loan losses as a result of our risk grade based allocation methodology.

As of April 26, 2020, we had executed 1,563 principal and interest deferrals on outstanding loan balances of $838.1 million in connection with the interagency statement on loan modifications and reporting for financial institutions working with customers affected by COVID-19 issued by the federal banking regulators. These deferrals were generally no more than 90 days in duration and were not considered troubled debt restructurings based on interagency guidance issued in March 2020. As modifications were short-term in nature, a modified loan did not have a change in loan grade due to a COVID-19-related modification. However, if the impact of COVID-19 persists, borrower operations do not improve or if other negative events occur, such modified loans could transition to potential problem loans or into problem loans.

We have also been actively participating in assisting our customers and noncustomers with applications for resources through the PPP program. PPP loans have a two-year term and earn interest at 1%. We believe that the majority of these loans will ultimately be forgiven by the SBA in accordance with the terms of the program. As of April 26, 2020, we had approved over 3,500 loans in excess of $640 million. It is our understanding that loans funded through the PPP program are fully guaranteed by the U.S.

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government. Should those circumstances change, we could be required to establish additional allowance for loan loss through additional provision expense charged to earnings.

Allowance for Loan Losses

The allowance for loan losses is a valuation allowance that is established through charges to earnings in the form of a provision for loan losses. The amount of the allowance for loan losses is affected by the following: (1) charge-offs of loans that decrease the allowance, (2) subsequent recoveries on loans previously charged-off that increase the allowance and (3) provisions for loan losses charged to income that increase the allowance.

Under accounting standards for business combinations, acquired loans are recorded at fair value on the date of acquisition. This fair value adjustment eliminates any of the seller’s allowance associated with such loans as of the purchase date as any credit exposure associated with such loans is incorporated into the fair value adjustment. A provision for loan losses is recorded for the emergence of new incurred and estimable losses on acquired loans after the acquisition date in excess of the recorded discount.

All loans acquired from Post Oak and LoweryBank were recorded at fair value without a carryover of the allowance for loan losses. The discount recognized on acquired loans is prospectively accreted, increasing our basis in such loans. Due to acquisition accounting, our allowance for loan losses to total loans may not be comparable to our peers particularly as it relates to the allowance to gross loan percentage and the allowance to nonperforming loans. Recognizing that acquired purchased credit impaired loans have been de minimis, we monitor credit quality trends on a post-acquisition basis with an emphasis on past due, charge-off, classified loan and nonperforming trends. The amount of discount recorded by the Company on the acquisition date of the Post Oak acquisition was $17.0 million, or 1.43%, on loans acquired. The amount of discount recorded by the Company on the acquisition date of the LoweryBank branch acquisition was $573 thousand, or 1.30%, on loans acquired. The remaining discount on the balance of acquired loans as of March 31, 2020 was $4.3 million. The discount on purchased loans considers anticipated credit losses on that portfolio; therefore, no allowance for loan losses was established on the acquisition date. The unaccreted discount represents additional protection against potential losses and is presented as a reduction of the recorded investment in the loans rather than an allowance for loan losses. We will continue to monitor the portfolio for credit deterioration and establish additional allowances over the remaining discount as needed.

At March 31, 2020, our allowance for loan losses amounted to $37.5 million, or 0.95%, of total loans compared with $29.4 million, or 0.75%, as of December 31, 2019. The Company delayed its implementation of ASU 2016-13, as afforded by the CARES Act, and recorded its provision for loan losses under the incurred loss model that existed prior to ASU 2016-13. The increase in the allowance at March 31, 2020 compared to the year ended December 31, 2019 was primarily due to the increased provision expense driven by the increase in charge-offs, the stress on our loan portfolio from the increase in unemployment and economic effects of the COVID-19 pandemic and the economic effects related to the sharp decline in crude oil prices. We believe that the allowance for loan losses at March 31, 2020 and December 31, 2019 was adequate to cover probable incurred losses in the loan portfolio as of such dates. The ratio of annualized net charge-offs to average loans outstanding was 0.30% for the three months ended March 31, 2020 compared to annualized net charge-offs of 0.02% for the three months ended March 31, 2019 and 0.07% for the year ended December 31, 2019.

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The following table presents, as of and for the periods indicated, an analysis of the allowance for loan losses and other related data:

	As of and for the Three Months Ended March 31,
	2020			2019
	(Dollars in thousands)
Average loans outstanding	$	3,933,291		$	3,747,234
Gross loans outstanding at end of period		3,955,546			3,806,161
Allowance for loan losses at beginning of period		29,438			26,331
Provision for loan losses		10,990			1,002
Charge-offs:
Commercial and industrial loans		(734	)		(246	)
Mortgage warehouse		—			—
Real estate:
Commercial real estate (including multi-family residential)		(144	)		(80	)
Commercial real estate construction and land development		(2,164	)		—
1-4 family residential (including home equity)		(90	)		—
Residential construction		—			—
Consumer and other		—			—
Total charge-offs for all loan types		(3,132	)		(326	)
Recoveries:
Commercial and industrial loans		215			91
Mortgage warehouse		—			—
Real estate:
Commercial real estate (including multi-family residential)		—			3
Commercial real estate construction and land development		—			—
1-4 family residential (including home equity)		—			—
Residential construction		—			—
Consumer and other		—			22
Total recoveries for all loan types		215			116
Net charge-offs		(2,917	)		(210	)
Allowance for loan losses at end of period	$	37,511		$	27,123
Allowance for loan losses to total loans		0.95	%		0.71	%
Net charge-offs to average loans ⁽¹⁾		0.30	%		0.02	%
Allowance for loan losses to nonperforming loans		173.49	%		83.02	%

(1)	Interim periods annualized.

Available for Sale Securities

We use our securities portfolio to provide a source of liquidity, to provide an appropriate return on funds invested, to manage interest rate risk and to meet pledging and regulatory capital requirements. As of March 31, 2020, the carrying amount of investment securities totaled $508.3 million, an increase of $135.7 million, or 36.4%, compared with $372.5 million as of December 31, 2019. Securities represented 10.2% of total assets as of March 31, 2020 and 7.5% as of December 31, 2019.

All of the securities in our securities portfolio are classified as available for sale. Securities classified as available for sale are measured at fair value in the financial statements with unrealized gains and losses reported, net of tax, as accumulated comprehensive income or loss until realized. Interest earned on securities is included in interest income.

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The following table summarizes the amortized cost and fair value of the securities in our securities portfolio as of the dates shown:

	March 31, 2020
			Gross		Gross
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gains		Losses			Value
	(Dollars in thousands)
Available for Sale
U.S. government and agency securities	$	27,914	$	506	$	(118	)	$	28,302
Municipal securities		252,906		3,634		—			256,540
Agency mortgage-backed pass-through securities		93,965		3,961		—			97,926
Agency collateralized mortgage obligations		102,361		3,036		(1,411	)		103,986
Corporate bonds and other		21,618		78		(200	)		21,496
Total	$	498,764	$	11,215	$	(1,729	)	$	508,250

	December 31, 2019
			Gross		Gross
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gains		Losses			Value
	(Dollars in thousands)
Available for Sale
U.S. government and agency securities	$	29,420	$	298	$	(243	)	$	29,475
Municipal securities		84,200		3,453		(116	)		87,537
Agency mortgage-backed pass-through securities		104,669		1,713		(214	)		106,168
Agency collateralized mortgage obligations		106,351		1,199		(208	)		107,342
Corporate bonds and other		41,691		346		(14	)		42,023
Total	$	366,331	$	7,009	$	(795	)	$	372,545

As of March 31, 2020, we did not expect to sell any securities classified as available for sale with material unrealized losses; and management believes that we more likely than not will not be required to sell any securities before their anticipated recovery, at which time we will receive full value for the securities. The unrealized losses are largely due to increases in market interest rates over the yields available at the time the underlying securities were purchased. Management does not believe any of the securities are impaired due to reasons of credit quality. The fair value is expected to recover as the securities approach their maturity date or repricing date or if market yields for such investments decline. Accordingly, as of March 31, 2020, management believes any impairment in our securities is temporary, and no impairment loss has been realized in our consolidated statements of income.

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The following table summarizes the contractual maturity of securities and their weighted average yields as of the dates indicated. The contractual maturity of a mortgage-backed security is the date at which the last underlying mortgage matures. Available for sale securities are shown at amortized cost. For purposes of the table below, municipal securities are calculated on a tax equivalent basis.

	March 31, 2020
	Within One Year					After One Year but Within Five Years					After Five Years but Within Ten Years					After Ten Years					Total
	Amount		Yield			Amount		Yield			Amount		Yield			Amount		Yield			Total		Yield
	(Dollars in thousands)
Available for Sale
U.S. government and agency securities	$	—		0.00	%	$	5,477		3.30	%	$	20,820		1.40	%	$	1,617		2.73	%	$	27,914		1.85	%
Municipal securities		6,192		2.66	%		3,026		3.08	%		32,290		3.71	%		211,398		3.91	%		252,906		3.84	%
Agency mortgage-backed pass-through securities		—		0.00	%		1,118		2.85	%		11,155		3.12	%		81,692		3.16	%		93,965		3.15	%
Agency collateralized mortgage obligations		—		0.00	%		—		0.00	%		25,443		2.75	%		76,918		2.31	%		102,361		2.42	%
Corporate bonds and other		8,815		2.70	%		2,017		2.76	%		4,000		5.56	%		6,786		3.44	%		21,618		3.47	%
Total	$	15,007		2.68	%	$	11,638		3.10	%	$	93,708		2.95	%	$	378,411		3.39	%	$	498,764		3.27	%

	December 31, 2019
	Within One Year					After One Year but Within Five Years					After Five Years but Within Ten Years					After Ten Years					Total
	Amount		Yield			Amount		Yield			Amount		Yield			Amount		Yield			Total		Yield
	(Dollars in thousands)
Available for Sale
U.S. government and agency securities	$	—		0.00	%	$	5,462		3.30	%	$	22,129		2.93	%	$	1,829		2.74	%	$	29,420		2.99	%
Municipal securities		6,402		2.65	%		2,087		3.73	%		25,792		3.70	%		49,919		3.38	%		84,200		3.43	%
Agency mortgage-backed pass-through securities		—		0.00	%		1,160		2.77	%		11,682		3.16	%		91,827		2.98	%		104,669		3.00	%
Agency collateralized mortgage obligations		—		0.00	%		—		0.00	%		25,471		2.78	%		80,880		2.47	%		106,351		2.55	%
Corporate bonds and other		13,820		2.73	%		1,518		2.25	%		4,000		5.56	%		22,353		3.27	%		41,691		3.27	%
Total	$	20,222		2.71	%	$	10,227		3.17	%	$	89,074		3.26	%	$	246,808		2.92	%	$	366,331		3.00	%

The contractual maturity of mortgage-backed securities and collateralized mortgage obligations is not a reliable indicator of their expected life because borrowers may have the right to prepay their obligations. Mortgage-backed securities and collateralized mortgage obligations are typically issued with stated principal amounts and are backed by pools of mortgage loans with varying maturities. The term of the underlying mortgages and loans may vary significantly due to the ability of a borrower to prepay and, in particular, monthly pay downs on mortgage-backed securities tend to cause the average life of the securities to be much different than the stated contractual maturity. During a period of increasing interest rates, fixed rate mortgage-backed securities do not tend to experience heavy prepayments of principal and, consequently, the average life of this security will be lengthened. If interest rates begin to fall, prepayments may increase, thereby shortening the estimated life of this security.

As of March 31, 2020 and December 31, 2019, we did not own securities of any one issuer (other than the U.S. government and its agencies or sponsored entities) for which the aggregate adjusted cost exceeded 10% of our consolidated shareholders’ equity.

The average yield of our securities portfolio was 2.72% during the three months ended March 31, 2020 compared with 2.66% for the three months ended March 31, 2019.

Goodwill and Core Deposit Intangible Assets

Our goodwill was $223.6 million as of March 31, 2020 and December 31, 2019. Goodwill resulting from business combinations represents the excess of the consideration paid over the fair value of the net assets acquired and liabilities assumed. Goodwill is assessed annually for impairment or when events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable.

Our core deposit intangible assets, net as of March 31, 2020 and December 31, 2019, was $20.9 million and $21.9 million, respectively. Core deposit intangible assets are amortized over their estimated useful life of seven to ten years.

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Premises and Equipment, net

Premises and equipment, net was $66.8 million at March 31, 2020 and December 31, 2019.

Deposits

Our lending and investing activities are primarily funded by deposits. We offer a variety of deposit accounts having a wide range of interest rates and terms including demand, savings, money market and certificates and other time accounts. We rely primarily on convenient locations, personalized service and our customer relationships to attract and retain these deposits. We seek customers that will engage in both a lending and deposit relationship with us.

Total deposits at March 31, 2020 were $3.95 billion, a decrease of $114.5 million, or 2.8%, compared with $4.07 billion at December 31, 2019. Noninterest-bearing deposits at March 31, 2020 were $1.22 billion, a decrease of $34.7 million, or 2.8%, compared with $1.25 billion at December 31, 2019. Interest-bearing deposits at March 31, 2020 were $2.74 billion, a decrease of $79.8 million, or 2.8%, compared with $2.82 billion at December 31, 2019.

Borrowings

We have an available line of credit with the Federal Home Loan Bank ("FHLB") of Dallas, which allows us to borrow on a collateralized basis. FHLB advances are used to manage liquidity as needed. The advances are secured by a blanket lien on certain loans. Maturing advances are replaced by drawing on available cash, making additional borrowings or through increased customer deposits. At March 31, 2020, we had a total borrowing capacity of $1.74 billion, of which $1.39 billion was available and $359.9 million was outstanding. FHLB advances of $175.0 million were outstanding at March 31, 2020, at a weighted average interest rate of 1.06%. Letters of credit were $184.9 million at March 31, 2020, of which $87.8 million will expire during the remaining months of 2020, $85.5 million will expire in 2021 and $11.6 million will expire in 2022.

Credit Agreement

On December 28, 2018, we amended our revolving credit agreement to increase the maximum commitment to advance funds to $45.0 million which will reduce annually by $7.5 million beginning in December 2020 and on each December 22nd for the following years thereafter. We are required to repay any outstanding balance in excess of the then-current maximum commitment amount. The revised agreement will mature in December 2025 and is secured by 100% of the capital stock of the Bank.

Our credit agreement contains certain restrictive covenants, including limitations on our ability to incur additional indebtedness or engage in certain fundamental corporate transactions, such as mergers, reorganizations and recapitalizations. Additionally, the Bank is required to maintain a “well-capitalized” rating, a minimum return on assets of 0.65%, measured quarterly, a ratio of loan loss reserve to nonperforming loans equal to or greater than 75%, measured quarterly, and a ratio of nonperforming assets to aggregate equity plus loan loss reserves minus intangible assets of less than 35%, measured quarterly.

At March 31, 2020, the balance of the revolving credit agreement was $15.6 million. The interest rate on the debt is the Prime Rate minus 25 basis points, or 3.00%, at March 31, 2020, and is paid quarterly. The credit agreement contains certain restrictive covenants. At March 31, 2020, we believe we were in compliance with all such debt covenants, except that return on assets at the Bank was 0.36% (below the required minimum), due to the provision for loan losses recorded in response to COVID-19-related uncertainties in the economic conditions at the end of the first quarter 2020. Such noncompliance has been waived by the lender with respect to the first quarter 2020. Additionally, the lender consented to the issuance of a cash dividend in the first quarter of 2020.

Off-Balance Sheet Items

In the normal course of business, we enter into various transactions, which, in accordance with accounting principles generally accepted in the United States, are not included in our consolidated balance sheets. We enter into these transactions to meet the financing needs of our customers. These transactions include commitments to extend credit and standby and commercial letters of credit, which involve, to varying degrees, elements of credit risk and interest rate risk in excess of the amounts recognized in our consolidated balance sheets.

Commitments to Extend Credit. We enter into contractual commitments to extend credit, normally with fixed expiration dates or termination clauses, at specified rates and for specific purposes. Substantially all of our commitments to extend credit are contingent upon customers maintaining specific credit standards at the time of loan funding. We minimize our exposure to loss under these commitments by subjecting them to credit approval and monitoring procedures. The amount and type of collateral obtained, if

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considered necessary by us, upon extension of credit, is based on management’s credit evaluation of the customer. Management assesses the credit risk associated with certain commitments to extend credit in determining the level of the allowance for loan losses.

Standby Letters of Credit. Standby letters of credit are conditional commitments issued by us to guarantee the performance of a customer to a third party. If the customer does not perform in accordance with the terms of the agreement with the third party, we would be required to fund the commitment and we would have the rights to the underlying collateral. The maximum potential amount of future payments we could be required to make is represented by the contractual amount of the commitment. Our policies generally require that standby letter of credit arrangements contain security and debt covenants similar to those contained in loan agreements.

As of March 31, 2020 and December 31, 2019, we had outstanding $1.06 billion and $1.04 billion, respectively, in commitments to extend credit and $16.9 million and $15.2 million, respectively, in commitments associated with outstanding letters of credit. Since commitments associated with letters of credit and commitments to extend credit may expire unused, the total outstanding may not necessarily reflect the actual future cash funding requirements.

Liquidity and Capital Resources

Liquidity

Liquidity is the measure of our ability to meet the cash flow requirements of depositors and borrowers, while at the same time meeting our operating, capital, strategic cash flow needs and to maintain reserve requirements to operate on an ongoing basis and manage unexpected events, all at a reasonable cost. During the three months ended March 31, 2020 and the year ended December 31, 2019, our liquidity needs have been primarily met by deposits, borrowed funds, security and loan maturities and amortizing investment and loan portfolios. The Bank has access to purchased funds from correspondent banks, and advances from the FHLB are available under a security and pledge agreement to take advantage of investment opportunities.

Our largest source of funds is deposits, and our largest use of funds is loans. Our average loans increased $186.1 million, or 5.0%, for the three months ended March 31, 2020 compared with the three months ended March 31, 2019. We predominantly invest excess deposits in Federal Reserve Bank of Dallas balances, securities, interest-bearing deposits at other banks or other short-term liquid investments until the funds are needed to fund loan growth. Our securities portfolio had a weighted average life of 8.9 years and modified duration of 6.8 years at March 31, 2020, and a weighted average life of 7.4 years and modified duration of 6.0 years at December 31, 2019.

As of March 31, 2020 and December 31, 2019, we had no exposure to future cash requirements associated with known uncertainties or capital expenditures of a material nature.

Capital Resources

Capital management consists of providing equity to support our current and future operations. We are subject to capital adequacy requirements imposed by the Federal Reserve, and the Bank is subject to capital adequacy requirements imposed by the FDIC. Both the Federal Reserve and the FDIC have adopted risk-based capital requirements for assessing bank holding company and bank capital adequacy. These standards define capital and establish minimum capital requirements in relation to assets and off-balance sheet exposure, adjusted for credit risk. The risk-based capital standards currently in effect are designed to make regulatory capital requirements more sensitive to differences in risk profiles among bank holding companies and banks, to account for off-balance sheet exposure and to minimize disincentives for holding liquid assets. Assets and off-balance sheet items are assigned to broad risk categories, each with appropriate relative risk weights. The resulting capital ratios represent capital as a percentage of total risk-weighted assets and off-balance sheet items.

Under current guidelines, the minimum ratio of total capital to risk-weighted assets (which are primarily the credit risk equivalents of balance sheet assets and certain off-balance sheet items such as standby letters of credit) is 8.0%. At least half of total capital must be composed of tier 1 capital, which includes common shareholders’ equity (including retained earnings), less goodwill, other disallowed intangible assets, and disallowed deferred tax assets, among other items. The Federal Reserve also has adopted a minimum leverage ratio, requiring tier 1 capital of at least 4.0% of average quarterly total consolidated assets, net of goodwill and certain other intangible assets, for all but the most highly rated bank holding companies. The federal banking agencies have also established risk-based and leverage capital guidelines that FDIC-insured depository institutions are required to meet. These regulations are generally similar to those established by the Federal Reserve for bank holding companies.

Under the Federal Deposit Insurance Act, the federal bank regulatory agencies must take “prompt corrective action” against undercapitalized U.S. depository institutions. U.S. depository institutions are assigned one of five capital categories: “well

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capitalized,” “adequately capitalized,” “undercapitalized,” “significantly undercapitalized” and “critically undercapitalized,” and are subjected to different regulation corresponding to the capital category within which the institution falls. A depository institution is deemed to be “well capitalized” if the banking institution has a total risk-based capital ratio of 10.0% or greater, a tier 1 risk-based capital ratio of 8.0% or greater, a common equity tier 1 capital ratio of 6.5% and a leverage ratio of 5.0% or greater, and the institution is not subject to an order, written agreement, capital directive or prompt corrective action directive to meet and maintain a specific level for any capital measure. Under certain circumstances, a well-capitalized, adequately capitalized or undercapitalized institution may be treated as if the institution were in the next lower capital category.

Failure to meet capital guidelines could subject the institution to a variety of enforcement remedies by federal bank regulatory agencies, including: termination of deposit insurance by the FDIC, restrictions on certain business activities and appointment of the FDIC as conservator or receiver. As of March 31, 2020 and December 31, 2019, the Bank was well capitalized.

Total shareholder’s equity was $706.6 million at March 31, 2020, compared with $709.9 million at December 31, 2019, a slight decrease of $3.3 million. This decrease was primarily the result of the repurchase and cancellation of common stock and the shareholder dividend payout partially offset by net income of $3.5 million and an increase in accumulated other comprehensive income of $2.6 million during the three months ended March 31, 2020.

As of March 31, 2020, all of our capital ratios, and 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 COVID-19, our reported and regulatory capital ratios could be adversely impacted by further credit losses.

The following table provides a comparison of our leverage and risk-weighted capital ratios as of the dates indicated to the minimum and well-capitalized regulatory standards, as well as with the capital conservation buffer:

	Actual Ratio			Minimum Required For Capital Adequacy Purposes			Minimum Required Plus Capital Conservation Buffer			To Be Categorized As Well Capitalized Under Prompt Corrective Action Provisions
Allegiance Bancshares, Inc. (Consolidated)
As of March 31, 2020
Total capital (to risk weighted assets)		14.72	%		8.00	%		10.50	%	N/A
Common equity Tier 1 capital (to risk weighted assets)		11.15	%		4.50	%		7.00	%	N/A
Tier 1 capital (to risk weighted assets)		11.38	%		6.00	%		8.50	%	N/A
Tier 1 capital (to average assets)		9.89	%		4.00	%		4.00	%	N/A
As of December 31, 2019
Total capital (to risk weighted assets)		14.83	%		8.00	%		10.50	%	N/A
Common equity Tier 1 capital (to risk weighted assets)		11.42	%		4.50	%		7.00	%	N/A
Tier 1 capital (to risk weighted assets)		11.66	%		6.00	%		8.50	%	N/A
Tier 1 capital (to average tangible assets)		10.02	%		4.00	%		4.00	%	N/A
Allegiance Bank
As of March 31, 2020
Total capital (to risk weighted assets)		14.48	%		8.00	%		10.50	%		10.00	%
Common equity Tier 1 capital (to risk weighted assets)		12.58	%		4.50	%		7.00	%		6.50	%
Tier 1 capital (to risk weighted assets)		12.58	%		6.00	%		8.50	%		8.00	%
Tier 1 capital (to average tangible assets)		10.94	%		4.00	%		4.00	%		5.00	%
As of December 31, 2019
Total capital (to risk weighted assets)		14.39	%		8.00	%		10.50	%		10.00	%
Common equity Tier 1 capital (to risk weighted assets)		12.67	%		4.50	%		7.00	%		6.50	%
Tier 1 capital (to risk weighted assets)		12.67	%		6.00	%		8.50	%		8.00	%
Tier 1 capital (to average tangible assets)		10.89	%		4.00	%		4.00	%		5.00	%

GAAP Reconciliation and Management’s Explanation of Non-GAAP Financial Measures

We identify certain financial measures discussed in this Quarterly Report on Form 10-Q as being “non-GAAP financial measures.” In accordance with the SEC’s rules, we classify a financial measure as being a non-GAAP financial measure if that

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financial measure excludes or includes amounts, or is subject to adjustments that have the effect of excluding or including amounts, that are included or excluded, as the case may be, in the most directly comparable measure calculated and presented in accordance with generally accepted accounting principles as in effect from time to time in the United States in our statements of income, balance sheet or statements of cash flows. Non-GAAP financial measures do not include operating and other statistical measures or ratios or statistical measures calculated using exclusively either financial measures calculated in accordance with GAAP, operating measures or other measures that are not non-GAAP financial measures or both.

The non-GAAP financial measures that we discuss in this Quarterly Report on Form 10-Q should not be considered in isolation or as a substitute for the most directly comparable or other financial measures calculated in accordance with GAAP. Moreover, the manner in which we calculate the non-GAAP financial measures that we discuss in this Quarterly Report on Form 10-Q may differ from that of other companies reporting measures with similar names. You should understand how such other banking organizations calculate their financial measures similar or with names similar to the non-GAAP financial measures we have discussed in this Quarterly Report on Form 10-Q when comparing such non-GAAP financial measures.

Our management, financial analysts and investment bankers use the non-GAAP financial measure “Return on Average Tangible Shareholders’ Equity” in their analysis of our performance. Return on average tangible shareholders’ equity is computed by dividing net earnings by average total shareholders’ equity reduced by average goodwill and core deposit intangibles, net of accumulated amortization. For return on average tangible shareholders’ equity, the most directly comparable financial measure calculated in accordance with GAAP is return on average shareholders’ equity. This measure is important to investors because it measures the performance of the business consistently, exclusive of changes in intangible assets.

We believe this non-GAAP financial measure provides useful information to management and investors that is supplementary to our financial condition, results of operations and cash flows computed in accordance with GAAP; however, we acknowledge that non-GAAP financial measures have a number of limitations. As such, you should not view these disclosures as a substitute for results determined in accordance with GAAP, and they are not necessarily comparable to non-GAAP financial measures that other companies use. The following reconciliation tables provide a more detailed analysis of this non-GAAP financial measure:

	Three Months Ended March 31,
	2020			2019
	(Dollars and share amounts in thousands, except per share data)
Net income	$	3,516		$	12,678

Average shareholders' equity	$	713,535		$	707,666
Less: Average goodwill and core deposit intangibles, net		245,007			249,277
Average tangible shareholders’ equity	$	468,528		$	458,389

Return on average tangible shareholders' equity⁽¹⁾		3.02	%		11.22	%

(1)	Annualized.

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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Asset/Liability Management and Interest Rate Risk

Our asset liability and interest rate risk policy provides management with the guidelines for effective balance sheet management. We have established a measurement system for monitoring our net interest rate sensitivity position. We manage our sensitivity position within our established guidelines.

As a financial institution, a component of the market risk that we face is interest rate volatility. Fluctuations in interest rates will ultimately impact both the level of income and expense recorded on most of our assets and liabilities, and the market value of all interest-earning assets and interest-bearing liabilities, other than those which have a short term to maturity. Interest rate risk is the potential for economic losses due to future interest rate changes. These economic losses can be reflected as a loss of future net interest income and/or a loss of current fair market values. The objective is to measure the effect on net interest income and to adjust the balance sheet to minimize the inherent risk while at the same time maximizing income.

As of March 31, 2020, we had not entered into instruments such as leveraged derivatives, interest rate swaps, financial options, financial future contracts or forward delivery contracts for the purpose of reducing interest rate risk. Based upon the nature of our operations, we are not subject to foreign exchange rate or commodity price risk. We do not own any trading assets. We manage our exposure to interest rates by structuring our balance sheet in the ordinary course of a community banking business.

Our exposure to interest rate risk is managed by our Asset Liability Committee (“ALCO”), which is composed of certain members of our Board of Directors and Bank management. The ALCO formulates strategies based on appropriate levels of interest rate risk. In determining the appropriate level of interest rate risk, the ALCO considers the impact on earnings and capital of the current outlook on interest rates, potential changes in interest rates, regional economies, liquidity, business strategies and other factors. The ALCO meets regularly to review, among other things, the sensitivity of assets and liabilities to interest rate changes, the book and market values of assets and liabilities, unrealized gains and losses, purchase and sale activities, commitments to originate loans and the maturities of investments and borrowings. Additionally, the ALCO reviews liquidity, cash flow flexibility, maturities of deposits and consumer and commercial deposit activity.

We use an interest rate risk simulation model and shock analysis to test the interest rate sensitivity of net interest income and the balance sheet, respectively. All instruments on the balance sheet are modeled at the instrument level, incorporating all relevant attributes such as next reset date, reset frequency and call dates, as well as prepayment assumptions for loans and securities and decay rates for nonmaturity deposits. Assumptions based on past experience are incorporated into the model for nonmaturity deposit account decay rates. The assumptions used are inherently uncertain and, as a result, the model cannot precisely measure future net interest income or precisely predict the impact of fluctuations in market interest rates on net interest income. Actual results will differ from the model’s simulated results due to timing, magnitude and frequency of interest rate changes as well as changes in market conditions and the application and timing of various management strategies.

We utilize static balance sheet rate shocks to estimate the potential impact on net interest income of changes in interest rates under various rate scenarios. This analysis estimates a percentage of change in the metric from the stable rate base scenario versus alternative scenarios of rising and falling market interest rates by instantaneously shocking a static balance sheet.

The following table summarizes the simulated change in net interest income over a 12-month horizon and the economic value of equity as of the dates indicated:

Change in Interest	Percent Change in Net Interest Income		Percent Change in Economic Value of Equity
Rates (Basis Points)	As of March 31, 2020	As of December 31, 2019	As of March 31, 2020	As of December 31, 2019
+300	(6.4)%	(5.3)%	1.0%	5.0%
+200	(4.5)%	(3.3)%	2.1%	5.3%
+100	(2.3)%	(1.6)%	2.0%	3.7%
Base	0.0%	0.0%	0.0%	0.0%
-100	(3.2)%	2.3%	(14.8)%	(6.9)%

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These results are primarily due to the duration of our loan and securities portfolio, the duration of our borrowings and the expected behavior of demand, money market and savings deposits during such rate fluctuations.

ITEM 4. CONTROLS AND PROCEDURES

Evaluation of disclosure controls and procedures. As of the end of the period covered by this Quarterly Report on Form 10-Q, the Company carried out an evaluation, under the supervision and with the participation of its management, including its Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of its disclosure controls and procedures. In designing and evaluating the disclosure controls and procedures, management recognizes that controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management was required to apply judgment in evaluating its controls and procedures. Based on this evaluation, the Company’s Chief Executive Officer and Chief Financial Officer concluded that the Company’s disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) were effective as of the end of the period covered by this report. See Exhibits 31.1 and 31.2 for the Certification statements issued by the Company’s Chief Executive Officer and Chief Financial Officer, respectively.

Changes in internal control over financial reporting. There were no changes in the Company’s internal control over financial reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the quarter ended March 31, 2020 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

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PART II—OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

From time to time, we are subject to claims and litigation arising in the ordinary course of business. In the opinion of management, we are not party to any legal proceedings the resolution of which we believe would have a material adverse effect on our business, prospects, financial condition, liquidity, results of operation, cash flows or capital levels. However, one or more unfavorable outcomes in any claim or litigation against us could have a material adverse effect for the period in which such claim or litigation is resolved. In addition, regardless of their merits or their ultimate outcomes, such matters are costly, divert management’s attention and may materially adversely affect our reputation, even if resolved in our favor. We intend to defend ourselves vigorously against any future claims or litigation.

ITEM 1A. RISK FACTORS

In evaluating an investment in any of the Company’s securities, investors should consider carefully, among other things, information under the heading “Cautionary Notice Regarding Forward-Looking Statements” in this Form 10-Q and in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019, and such other risk factors as the Company may disclose or has disclosed in other reports and statements filed with the Securities and Exchange Commission. In addition to the risk factors disclosed in those reports, you should note the following risk factor:

The COVID-19 pandemic has adversely impacted our business and financial results, and the ultimate impact will depend on future developments, which are highly uncertain and cannot be predicted, including the scope and duration of the pandemic and actions taken by governmental authorities in response to the pandemic.

The COVID-19 pandemic is creating extensive disruptions to the global economy and to the lives of individuals throughout the world. Governments, businesses and the public are taking unprecedented actions to contain the spread of COVID-19 and to mitigate its effects, including quarantines, travel bans, shelter-in-place orders, closures of businesses and schools, fiscal stimulus and legislation designed to deliver monetary aid and other relief. While the scope, duration and full effects of the pandemic are rapidly evolving and not fully known, the pandemic and related efforts to contain it have disrupted global economic activity, adversely affected the functioning of financial markets, impacted interest rates, increased economic and market uncertainty and disrupted trade and supply chains. If these effects continue for a prolonged period or result in sustained economic stress or recession, many of the risk factors identified in our Form 10-K could be exacerbated and such effects could have a material adverse impact on us in a number of ways related to credit, collateral, capital, customer demand, funding, liquidity, operations, interest rate risk, human capital and self-insurance, as described in more detail below.

Credit Risk: Our risks of timely loan repayment and the value of collateral supporting the loans are affected by the strength of our borrowers’ businesses. Concern about the spread of COVID-19 has caused and is likely to continue to cause business shutdowns, limitations on commercial activity and financial transactions, labor shortages, supply chain interruptions, increased unemployment and commercial property vacancy rates, reduced profitability and ability for property owners to make mortgage payments and overall economic and financial market instability, all of which may cause our customers to be unable to make scheduled loan payments. If the effects of COVID-19 result in widespread and sustained repayment shortfalls on loans in our portfolio, we could incur significant delinquencies, foreclosures and credit losses, particularly if the available collateral is insufficient to cover our exposure. Significant loan losses could adversely impact the Bank’s capital ratios, which could prevent the Bank from paying dividends to us, which dividends – along with cash on hand – are used by us to service our debt obligations. The future effects of COVID-19 on economic activity could negatively affect the collateral values associated with our existing loans, our ability to liquidate the real estate collateral securing our residential and commercial real estate loans, our ability to maintain loan origination volume and to obtain additional financing, the future demand for or profitability of our lending and services and the financial condition and credit risk of our customers. Further, in the event of delinquencies, regulatory changes and policies designed to protect borrowers may slow or prevent us from making our business decisions or may result in a delay in our taking certain remediation actions, such as foreclosure. In addition, we have unfunded commitments to extend credit to customers. During a challenging economic environment like now, our customers are more dependent on our credit commitments and increased borrowings under these commitments could adversely impact our liquidity.

Furthermore, in an effort to support our communities during the pandemic, we are participating in the PPP under the CARES Act by making loans to small businesses that are subject to the terms and conditions of the PPP. We face increased risks related to non-compliance by borrowers with the terms of the PPP. Additionally, we face risk on PPP loans if there is a deficiency in the manner in which the loan was originated, funded or serviced by us, such as an issue with the eligibility of a borrower to receive a PPP loan or the amount of such loan, which may or may not be related to the ambiguity in the laws, rules and guidance regarding the operation of the PPP. If the SBA determines there is a deficiency, the SBA may deny its liability under the guaranty, reduce the amount of the

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guaranty, or, if it has already paid under the guaranty, seek recovery of any loss related to the deficiency from us. If borrowers under PPP loans fail to qualify for loan forgiveness, we are at the heightened risk of holding such loans at unfavorable interest rates with no collateral and no guarantors.

Strategic Risk: Our success may be affected by a variety of external factors that may affect the price or marketability of our products and services, changes in interest rates or sentiment of our deposit customers that may increase our funding costs, reduced demand for our financial products due to economic conditions and the various response of governmental and nongovernmental authorities. In recent weeks, the COVID-19 pandemic has significantly increased economic and demand uncertainty and has led to disruption and volatility in the global capital markets. Furthermore, many of the governmental actions have been directed toward curtailing household and business activity to contain COVID-19. These actions have been rapidly expanding in scope and intensity. For example, in the Houston region, the local governments have acted to temporarily close or restrict the operations of most businesses. The future effects of COVID-19 on economic activity could negatively affect the future banking products we provide, including a decline in the origination of loans.

Operational Risk: Current and future restrictions on how we operate our bank offices and operational departments could limit our ability to meet customer service expectations and have a material adverse effect on our operations. Key employees could become sick from COVID-19 and, in response to the demand for PPP loans, our team has been working extended hours, nights and weekends, increasing the possibility of employee burnout, heightened levels of stress and increased risk of error. We rely on business processes and bank office activity that largely depend on people and technology, including access to information technology systems as well as information, applications, payment systems and other services provided by third parties. In response to COVID-19, we have modified our business practices with a portion of our employees working remotely from their homes to have our operations uninterrupted as much as possible. Further, technology in employees’ homes may not be as robust as in our offices and could cause the networks, information systems, applications and other tools available to employees to be more limited or less reliable than in our offices. The continuation of these work-from-home measures also introduces additional operational risk, including increased cybersecurity risk. These cyber risks include increased phishing, malware and other cybersecurity attacks, vulnerability to disruptions of our information technology infrastructure and telecommunications systems for remote operations, increased risk of unauthorized dissemination of confidential information, limited ability to restore the systems in the event of a systems failure or interruption, greater risk of a security breach resulting in destruction or misuse of valuable information and potential impairment of our ability to perform critical functions, including wiring funds, all of which could expose us to risks of data or financial loss, litigation and liability and could seriously disrupt our operations and the operations of any impacted customers.

Moreover, we rely on many third parties in our business operations, including the appraiser(s) of the real property collateral, vendors that supply essential services such as loan servicers, providers of financial information, systems and analytical tools and providers of electronic payment and settlement systems, and local and federal government agencies, offices and courthouses. In light of the developing measures responding to the pandemic, many of these entities may limit the availability and access of their services. For example, loan origination could be delayed due to the limited availability of real estate appraisers for the collateral. Loan closings could be delayed due to reductions in available staff in recording offices or the closing of courthouses in certain counties, which slows the process for title work, mortgage and UCC filings in those counties. If the third-party service providers continue to have limited capacities for a prolonged period or if additional limitations or potential disruptions in these services materialize, it may negatively affect our operations.

Interest Rate Risk: Our net interest income, lending activities, deposits and profitability could be negatively affected by volatility in interest rates caused by uncertainties stemming from COVID-19. In March 2020, the Federal Reserve lowered the target range for the federal funds rate to a range from 0 to 0.25 percent, citing concerns about the impact of COVID-19 on markets and stress in the energy sector. A prolonged period of extremely volatile and unstable market conditions would likely increase our funding costs and negatively affect market risk mitigation strategies. Higher income volatility from changes in interest rates and spreads to benchmark indices could cause a loss of future net interest income and a decrease in current fair market values of our assets. Fluctuations in interest rates will impact both the level of income and expense recorded on most of our assets and liabilities and the market value of all interest-earning assets and interest-bearing liabilities, which in turn could have a material adverse effect on our net income, operating results and financial condition.

Because there have been no comparable recent global pandemics that resulted in similar global impact, we do not yet know the full extent of COVID-19’s effects on our business, operations or the global economy as a whole. Any future development will be highly uncertain and cannot be predicted, including the scope and duration of the pandemic, the effectiveness of our work-from-home program, third-party providers’ ability to support our operation and any actions taken by governmental authorities and other third parties in response to the pandemic. The uncertain future development of this crisis could materially and adversely affect our business, operations, operating results, financial condition, liquidity and capital levels.

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ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

(a)None.

(b)None.

(c)The following table summarizes the Company's repurchase activity during the three months ended March 31, 2020.

Period	Total Number of Shares Purchased as Part of Publicly Announced Plan		Remaining Share Repurchase Authorization			Total Number of Shares Purchased		Average Price Paid Per Share
January 1, 2020 to January 31, 2020		40,947		203,387	⁽¹⁾		40,947	$	36.86
February 1, 2020 to February 29, 2020		203,387		1,000,000	⁽²⁾		203,387	$	38.32
March 1, 2020 to March 31, 2020		—		1,000,000	⁽²⁾		—		—

(1)	Pursuant to a repurchase program announced on July 25, 2019, pursuant to which the Company may repurchase up to one million shares through July 31, 2020.

(2)	Pursuant to a repurchase program announced on February 27, 2020, pursuant to which the Company may repurchase up to one million shares through March 31, 2021.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5. OTHER INFORMATION

None.

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ITEM 6. EXHIBITS

Exhibit Number		Description


3.1		Amended and Restated Certificate of Formation of Allegiance Bancshares, Inc. (incorporated herein by reference to Exhibit 3.1 to the Company’s Quarterly Report on Form 10-Q filed on August 1, 2019)

3.2		Amended and Restated Bylaws of Allegiance Bancshares, Inc. (incorporated herein by reference to the Company’s Registration Statement on Form S-1 (Registration No. 333-206536) (the “Registration Statement”))

10.1		Change in Control Severance Plan (incorporated herein by reference to Exhibit 10.1 to the Company’s Form 8-K filed on February 4, 2020)

31.1*		Certification of the Chief Executive Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended

31.2*		Certification of the Chief Financial Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended

32.1**		Certification of the Chief Executive Officer pursuant to 18 U.S.C. Section 1350, adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

32.2**		Certification of the Chief Financial Officer pursuant to 18 U.S.C. Section 1350, adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

101.INS*		XBRL Instance Document

101.SCH*		XBRL Taxonomy Extension Schema Document Exhibit

101.CAL*		XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF*		XBRL Taxonomy Extension Definition Linkbase Document

101.LAB*		XBRL Taxonomy Extension Label Linkbase Document

101.PRE*		XBRL Taxonomy Extension Presentation Linkbase Document

*	Filed with this Quarterly Report on Form 10-Q.

**	Furnished with this Quarterly Report on Form 10-Q.

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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.

	Allegiance Bancshares, Inc. (Registrant)

Date: May 1, 2020	/s/ Steven F. Retzloff
	Steven F. Retzloff
	Chief Executive Officer

Date: May 1, 2020	/s/ Paul P. Egge
	Paul P. Egge
	Chief Financial Officer

abtx-ex311_8.htm

Exhibit 31.1

CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO RULE 13a-14(a) OF

THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED

I, Steven F. Retzloff, certify that:

1.	I have reviewed this Quarterly Report on Form 10-Q of Allegiance Bancshares, 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;

The registrant’s other certifying officers 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:

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;

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;

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

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):

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

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.

Date: May 1, 2020

/s/ Steven F. Retzloff

Steven F. Retzloff

Chief Executive Officer

abtx-ex312_6.htm

Exhibit 31.2

CERTIFICATION OF THE CHIEF FINANCIAL OFFICER PURSUANT TO RULE 13a-14(a) OF THE

SECURITIES EXCHANGE ACT OF 1934, AS AMENDED

I, Paul P. Egge, certify that:

1.	I have reviewed this Quarterly Report on Form 10-Q of Allegiance Bancshares, 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;

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):

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.

Date: May 1, 2020

/s/ Paul P. Egge

Paul P. Egge

Chief Financial Officer

abtx-ex321_9.htm

Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 (AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002)

In connection with the Quarterly Report of Allegiance Bancshares, Inc. (the “Company”) on Form 10-Q for the period ending March 31, 2020 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Steven F. Retzloff, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and operating results of the Company as of the dates and for the periods expressed in the Report.

IN WITNESS WHEREOF, the undersigned has executed this Certificate, effective as of May 1, 2020.

/s/ Steven F. Retzloff

Steven F. Retzloff

Chief Executive Officer

abtx-ex322_7.htm

Exhibit 32.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 (AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002)

In connection with the Quarterly Report of Allegiance Bancshares, Inc. (the “Company”) on Form 10-Q for the period ending March 31, 2020 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Paul P. Egge, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

IN WITNESS WHEREOF, the undersigned has executed this Certificate, effective as of May 1, 2020.

/s/ Paul P. Egge

Paul P. Egge

Chief Financial Officer

EARNINGS PER COMMON SHARE (Tables)

3 Months Ended

Mar. 31, 2020

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

Restricted shares are considered outstanding at the date of grant, accounted for as participating securities and included in basic and diluted weighted average common shares outstanding.

	Three Months Ended March 31,
	2020				2019
			Per Share				Per Share
	Amount		Amount		Amount		Amount
	(Amounts in thousands, except per share data)
Net income attributable to shareholders	$	3,516			$	12,678
Basic:
Weighted average shares outstanding		20,411	$	0.17		21,733	$	0.58

Diluted:
Add incremental shares for:
Dilutive effect of stock option exercises		279				307
Total		20,690	$	0.17		22,040	$	0.58

SUBORDINATED DEBT (Tables)

3 Months Ended

Mar. 31, 2020

Subordinated Borrowings [Abstract]

Schedule of Subordinated Borrowing

A summary of pertinent information related to the Company’s issues of junior subordinated debentures outstanding at March 31, 2020 is set forth in the table below:

Description

Issuance

Date

Trust

Preferred

Securities

Outstanding

Interest Rate⁽¹⁾

Junior

Subordinated

Debt Owed

to Trusts

Maturity

Date⁽²⁾

(Dollars in thousands)

Farmers & Merchants Capital Trust II

November 13, 2003

7,500

3 month LIBOR + 3.00%

7,732

November 8, 2033

Farmers & Merchants Capital Trust III

June 30, 2005

3,500

3 month LIBOR + 1.80%

3,609

July 7, 2035

11,341

(1)	The 3-month LIBOR in effect as of March 31, 2020 was 1.1024%.

(2)	All debentures are currently callable.

SUBORDINATED DEBT

3 Months Ended

Mar. 31, 2020

Subordinated Borrowings [Abstract]

SUBORDINATED DEBT

10. SUBORDINATED DEBT

Junior Subordinated Debentures

A summary of pertinent information related to the Company’s issues of junior subordinated debentures outstanding at March 31, 2020 is set forth in the table below:

Description

Issuance

Date

Trust

Preferred

Securities

Outstanding

Interest Rate⁽¹⁾

Junior

Subordinated

Debt Owed

to Trusts

Maturity

Date⁽²⁾

(Dollars in thousands)

Farmers & Merchants Capital Trust II

November 13, 2003

7,500

3 month LIBOR + 3.00%

7,732

November 8, 2033

Farmers & Merchants Capital Trust III

June 30, 2005

3,500

3 month LIBOR + 1.80%

3,609

July 7, 2035

11,341

(1)	The 3-month LIBOR in effect as of March 31, 2020 was 1.1024%.

(2)	All debentures are currently callable.

Subordinated Notes

The Bank Notes bear a fixed interest rate of 5.25% per annum until (but excluding) December 15, 2022, payable semi-annually in arrears. From December 15, 2022, the Bank Notes will bear a floating rate of interest equal to 3-Month LIBOR + 3.03% until the Bank Notes mature on December 15, 2027, or such earlier redemption date, payable quarterly in arrears. The Bank Notes will be redeemable by the Bank, in whole or in part, on or after December 15, 2022 or, in whole but not in part, upon the occurrence of certain specified tax events, capital events or investment company events. Any redemption will be at a redemption price equal to 100% of the principal amount of Bank Notes being redeemed, plus accrued and unpaid interest, and will be subject to, and require, prior regulatory approval. The Bank Notes are not subject to redemption at the option of the holders.

ACQUISITIONS

3 Months Ended

Mar. 31, 2020

Business Combinations [Abstract]

ACQUISITIONS

2. ACQUISITIONS

2018 Acquisition

As of September 30, 2019, the Company finalized its valuation of all assets and liabilities acquired. A summary of the purchase price allocation is as follows (in thousands):

Fair value of consideration paid:
Common shares issued (8,402,010 shares)	$	350,364
Stock options issued (299,352)		8,639
Cash in lieu of fractional shares		21
Total consideration paid	$	359,024

Fair value of assets acquired:
Cash and cash equivalents	$	230,416
Investment securities		42,779
Loans		1,164,281
Premises and equipment		21,988
Core deposit intangibles		25,128
Other assets		18,076
Total assets acquired	$	1,502,668

Fair value of liabilities assumed:
Deposits	$	1,291,310
Other borrowed funds		30,000
Other liabilities		6,070
Total liabilities assumed		1,327,380
Fair value of net assets acquired	$	175,288
Goodwill resulting from acquisition	$	183,736

	Contractual Balance		Fair Value		Discount
	(Dollars in thousands)
Commercial and industrial	$	221,098	$	217,204	$	(3,894	)
Real estate:
Commercial real estate (including multi-family residential)		450,947		443,512		(7,435	)
Commercial real estate construction and land development		167,386		165,387		(1,999	)
1-4 family residential (including home equity)		288,304		285,099		(3,205	)
Residential construction		23,812		23,812		—
Consumer and other		29,684		29,267		(417	)
Total loans	$	1,181,231	$	1,164,281	$	(16,950	)

2019 Acquisition

LEASES

3 Months Ended

Mar. 31, 2020

Leases [Abstract]

LEASES

6. LEASES

There were no sale and leaseback transactions, leveraged leases or lease transactions with related parties during the three months ended March 31, 2020 and 2019.

Supplemental lease information at the dates indicated is as follows:


	March 31, 2020			December 31, 2019
	(Dollars in thousands)
Balance Sheet:
Operating lease right of use asset classified as premises and equipment	$	10,544		$	11,180
Operating lease liability classified as other liabilities		10,831			11,477
Weighted average lease term, in years		5.38			5.53
Weighted average discount rate		3.20	%		3.19	%

A maturity analysis of the Company’s lease liabilities is as follows:

	March 31, 2020		December 31, 2019
	(Dollars in thousands)
Lease payments due:
Within one year	$	2,803	$	2,867
After one but within two years		2,576		2,608
After two but within three years		1,979		2,204
After three but within four years		1,557		1,596
After four but within five years		924		1,131
After five years		1,996		2,162
Total lease payments		11,835		12,568
Discount on cash flows		1,004		1,091
Total lease liability	$	10,831	$	11,477

OFF-BALANCE SHEET ARRANGEMENTS, COMMITMENTS AND CONTINGENCIES - Contractual Amounts of Financial Instruments With Off-balance Sheet Risk (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fixed Rate	$ 561,222	$ 518,254
Variable Rate	514,034	535,779
Commitments to extend credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fixed Rate	549,277	507,411
Variable Rate	509,079	531,470
Standby letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fixed Rate	11,945	10,843
Variable Rate	$ 4,955	$ 4,309

INCOME TAXES (Details) - USD ($)	3 Months Ended
INCOME TAXES (Details) - USD ($)	Mar. 31, 2020	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Income tax expense	$ 843,000	$ 3,097,000
Effective income tax rate reconciliation, percent	19.30%	19.60%
Unrecognized tax benefits, income tax penalties and interest expense	$ 0

EARNINGS PER COMMON SHARE - Summary of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share [Abstract]
Net income attributable to shareholders	$ 3,516	$ 12,678
Basic:
Weighted average shares outstanding (in shares)	20,411	21,733
Weighted average shares outstanding (in dollars per share)	$ 0.17	$ 0.58
Diluted:
Dilutive effect of stock option exercises (in shares)	279	307
Total (in shares)	20,690	22,040
Total (in dollars per share)	$ 0.17	$ 0.58

LOANS AND ALLOWANCE FOR LOAN LOSSES - Narrative (Details)	3 Months Ended
	Mar. 31, 2020 USD ($) contract	Mar. 31, 2019 USD ($)	Apr. 26, 2020 USD ($) Loan	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Accounts Notes And Loans Receivable [Line Items]
Allowance for loan losses	$ 37,511,000	$ 27,123,000		$ 29,438,000	$ 26,331,000
Loans held for investment	3,955,546,000			3,915,310,000
Recorded investment	28,300,000			28,900,000
Change in method of calculating impairment	2,600,000			3,200,000
Troubled debt restructuring, write-down	394,000	0
Troubled debt restructuring, addition	441,000	3,400,000
Modification of outstanding recorded investment	$ 1,252,000	946,000
Number of defaults on loan that were modified as troubled debt restructuring during the preceding 12 months \| contract	4
Subsequent Event
Accounts Notes And Loans Receivable [Line Items]
Number of loans deferral due to CARES Act \| Loan			1,563
Outstanding loan balances deferrals due to CARES Act			$ 838,100,000
Troubled debt added during quarter
Accounts Notes And Loans Receivable [Line Items]
Recorded investment	$ 1,200,000	902,000
PCI Loans
Accounts Notes And Loans Receivable [Line Items]
Allowance for loan losses	1,100,000
Loans held for investment	$ 12,994,000	$ 21,400,000		$ 13,916,000

LOANS AND ALLOWANCE FOR LOAN LOSSES - Risk Category of Loans by Class (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	$ 3,955,546	$ 3,915,310
Pass
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	3,743,835	3,713,792
Watch
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	98,728	89,879
Special Mention
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	32,275	25,251
Substandard
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	80,632	86,310
Doubtful
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	76	78
Commercial and industrial
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	702,267	689,360
Commercial and industrial \| Pass
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	647,621	641,696
Commercial and industrial \| Watch
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	19,691	14,170
Commercial and industrial \| Special Mention
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	10,352	9,121
Commercial and industrial \| Substandard
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	24,527	24,295
Commercial and industrial \| Doubtful
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	76	78
Mortgage warehouse
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	1,051	8,304
Mortgage warehouse \| Pass
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	1,051	8,304
Mortgage warehouse \| Watch
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	0	0
Mortgage warehouse \| Special Mention
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	0	0
Mortgage warehouse \| Substandard
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	0	0
Mortgage warehouse \| Doubtful
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	0	0
Real estate \| Commercial real estate (including multi-family residential)
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	1,951,080	1,873,782
Real estate \| Commercial real estate (including multi-family residential) \| Pass
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	1,838,807	1,775,789
Real estate \| Commercial real estate (including multi-family residential) \| Watch
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	55,719	47,762
Real estate \| Commercial real estate (including multi-family residential) \| Special Mention
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	14,240	9,289
Real estate \| Commercial real estate (including multi-family residential) \| Substandard
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	42,314	40,942
Real estate \| Commercial real estate (including multi-family residential) \| Doubtful
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	0	0
Real estate \| Commercial real estate construction and land development
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	378,987	410,471
Real estate \| Commercial real estate construction and land development \| Pass
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	363,533	388,151
Real estate \| Commercial real estate construction and land development \| Watch
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	9,451	9,583
Real estate \| Commercial real estate construction and land development \| Special Mention
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	644	639
Real estate \| Commercial real estate construction and land development \| Substandard
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	5,359	12,098
Real estate \| Commercial real estate construction and land development \| Doubtful
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	0	0
Real estate \| 1-4 family residential (including home equity)
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	704,212	698,957
Real estate \| 1-4 family residential (including home equity) \| Pass
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	679,037	669,288
Real estate \| 1-4 family residential (including home equity) \| Watch
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	11,229	15,798
Real estate \| 1-4 family residential (including home equity) \| Special Mention
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	6,687	5,844
Real estate \| 1-4 family residential (including home equity) \| Substandard
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	7,259	8,027
Real estate \| 1-4 family residential (including home equity) \| Doubtful
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	0	0
Real estate \| Residential construction
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	177,025	192,515
Real estate \| Residential construction \| Pass
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	173,563	189,209
Real estate \| Residential construction \| Watch
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	2,480	2,560
Real estate \| Residential construction \| Special Mention
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	0	0
Real estate \| Residential construction \| Substandard
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	982	746
Real estate \| Residential construction \| Doubtful
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	0	0
Consumer and other
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	40,924	41,921
Consumer and other \| Pass
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	40,223	41,355
Consumer and other \| Watch
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	158	6
Consumer and other \| Special Mention
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	352	358
Consumer and other \| Substandard
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	191	202
Consumer and other \| Doubtful
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	$ 0	$ 0

BORROWINGS AND BORROWING CAPACITY - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Dec. 28, 2018
Revolving Credit Agreement
Debt Instrument [Line Items]
Outstanding amount	$ 15,600,000
Debt instrument covenant, percentage	0.36%
Amended Revolving Credit Agreement
Debt Instrument [Line Items]
Debt instrument maturity, month and year	2025-12
Percentage of debt secured by capital stock	100.00%
Borrowing Agreement \| Prime Rate
Debt Instrument [Line Items]
Basis spread on variable rate	0.25%
Interest rate, effective percentage	3.00%
Credit Facility With Another Financial Institution \| Amended Revolving Credit Agreement
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 45,000,000
Annual reduction in borrowing capacity		$ 7,500,000
Federal Home Loan Bank of Dallas
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 1,740,000,000
Remaining borrowing capacity	1,390,000,000
Outstanding amount	359,900,000
Letters of credit, outstanding amount	184,900,000
Federal Home Loan Bank of Dallas \| Expire in Remaining Month of 2020
Debt Instrument [Line Items]
Letters of credit, outstanding amount	87,800,000
Federal Home Loan Bank of Dallas \| Expire in 2022
Debt Instrument [Line Items]
Letters of credit, outstanding amount	11,600,000
Federal Home Loan Bank of Dallas \| Expire in 2021
Debt Instrument [Line Items]
Letters of credit, outstanding amount	85,500,000
Federal Home Loan Bank of Dallas \| Short-term Debt
Debt Instrument [Line Items]
Federal Home Loan Bank, advances	$ 175,000,000
Federal Home Loan Bank of Dallas \| Short-term Debt \| Weighted Average
Debt Instrument [Line Items]
Federal Home Loan Bank, advances, interest rate	1.06%

LEASES - Supplemental Lease Information (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Balance Sheet:
Operating lease right of use asset classified as premises and equipment	$ 10,544	$ 11,180
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:PropertyPlantAndEquipmentNet	us-gaap:PropertyPlantAndEquipmentNet
Operating lease liability classified as other liabilities	$ 10,831	$ 11,477
Operating Lease, Liability, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilities	us-gaap:OtherLiabilities
Weighted average lease term, in years	5 years 4 months 17 days	5 years 6 months 10 days
Weighted average discount rate	3.20%	3.19%

FAIR VALUE - Narrative (Details)	3 Months Ended
FAIR VALUE - Narrative (Details)	Mar. 31, 2020 USD ($) Property	Dec. 31, 2019 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired financing receivable, with related allowance, recorded investment	$ 14,729,000	$ 27,891,000
Impaired financing receivable, with related allowance, unpaid principal balance	15,424,000	28,285,000
Related allowance	3,308,000	6,775,000
Real estate acquired through foreclosure	$ 12,617,000	8,337,000
Foreclosed Commercial Real Estate Property
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of properties \| Property	3
Tract of Vacant Land
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of properties \| Property	1
Foreclosed Residential Rental Property
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of properties \| Property	1
Residential Lot
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of properties \| Property	1
Impaired Loans with Specific Allocation of Allowance \| Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Percentage of estimated selling and closing costs of collateral	5.00%
Impaired Loans with Specific Allocation of Allowance \| Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Percentage of estimated selling and closing costs of collateral	10.00%
Other Real Estate Owned \| Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Percentage of estimated selling and closing costs of collateral	5.00%
Other Real Estate Owned \| Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Percentage of estimated selling and closing costs of collateral	10.00%
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired financing receivable, with related allowance, recorded investment	$ 11,400,000	21,100,000
Impaired financing receivable, with related allowance, unpaid principal balance	14,700,000	27,900,000
Related allowance	3,300,000	6,800,000
Real estate acquired through foreclosure	12,600,000	8,300,000
Recurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, fair value disclosure, recurring	$ 0	$ 0

SECURITIES - Amortized Cost and Fair Value of Investment Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Amortized Cost
Due in one year or less	$ 15,007
Due after one year through five years	10,520
Due after five years through ten years	57,109
Due after ten years	219,802
Subtotal	302,438
Agency mortgage-backed pass through and collateralized mortgage obligation securities	196,326
Amortized Cost	498,764	$ 366,331
Fair Value
Due in one year or less	14,997
Due after one year through five years	10,931
Due after five years through ten years	58,760
Due after ten years	221,650
Subtotal	306,338
Agency mortgage-backed pass through and collateralized mortgage obligation securities	201,912
Total	$ 508,250	$ 372,545

GOODWILL AND CORE DEPOSIT INTANGIBLE ASSETS - Changes in Carrying Amount of Goodwill and Intangibles (Details) - USD ($) $ in Thousands		3 Months Ended		12 Months Ended
	Feb. 01, 2019	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Goodwill
Balance, beginning		$ 223,642	$ 223,125	$ 223,125
Measurement period adjustment				(61)
Balance, ending		223,642		223,642
Core Deposit Intangible Assets
Balance, beginning		21,876
Amortization		(990)	(1,178)
Balance, ending		20,886		21,876
Core Deposit Intangible Assets
Core Deposit Intangible Assets
Balance, beginning		21,876	$ 26,587	26,587
Amortization		(990)		(4,711)
Balance, ending		$ 20,886		21,876
Lowery Bank
Goodwill
Goodwill, acquired during period	$ 578			$ 578

REGULATORY CAPITAL MATTERS

3 Months Ended

Mar. 31, 2020

Banking And Thrift [Abstract]

REGULATORY CAPITAL MATTERS

14. REGULATORY CAPITAL MATTERS

The following is a summary of the Company’s and the Bank’s actual and required capital ratios at March 31, 2020 and December 31, 2019:



	Actual					Minimum Required for Capital Adequacy Purposes					Minimum Required Plus Capital Conservation Buffer					To Be Categorized As Well Capitalized Under Prompt Corrective Action Provisions
	Amount		Ratio			Amount		Ratio			Amount		Ratio			Amount		Ratio
	(Dollars in thousands)
ALLEGIANCE BANCSHARES, INC.
(Consolidated)
As of March 31, 2020
Total Capital (to risk weighted assets)	$	600,020		14.72	%	$	326,194		8.00	%	$	428,130		10.50	%	N/A		N/A
Common Equity Tier 1 Capital (to risk weighted assets)		454,579		11.15	%		183,484		4.50	%		285,420		7.00	%	N/A		N/A
Tier 1 Capital (to risk weighted assets)		464,132		11.38	%		244,646		6.00	%		346,581		8.50	%	N/A		N/A
Tier 1 Capital (to average tangible assets)		464,132		9.89	%		187,669		4.00	%		187,669		4.00	%	N/A		N/A
As of December 31, 2019
Total Capital (to risk weighted assets)	$	596,684		14.83	%	$	321,775		8.00	%	$	422,330		10.50	%	N/A		N/A
Common Equity Tier 1 Capital (to risk weighted assets)		459,447		11.42	%		180,999		4.50	%		281,553		7.00	%	N/A		N/A
Tier 1 Capital (to risk weighted assets)		468,972		11.66	%		241,331		6.00	%		341,886		8.50	%	N/A		N/A
Tier 1 Capital (to average tangible assets)		468,972		10.02	%		187,146		4.00	%		187,146		4.00	%	N/A		N/A

ALLEGIANCE BANK
As of March 31, 2020
Total Capital (to risk weighted assets)	$	589,975		14.48	%	$	326,004		8.00	%	$	427,880		10.50	%	$	407,505		10.00	%
Common Equity Tier 1 Capital (to risk weighted assets)		512,816		12.58	%		183,377		4.50	%		285,253		7.00	%		264,878		6.50	%
Tier 1 Capital (to risk weighted assets)		512,816		12.58	%		244,503		6.00	%		346,379		8.50	%		326,004		8.00	%
Tier 1 Capital (to average tangible assets)		512,816		10.94	%		187,523		4.00	%		187,523		4.00	%		234,404		5.00	%
As of December 31, 2019
Total Capital (to risk weighted assets)	$	578,425		14.39	%	$	321,556		8.00	%	$	422,043		10.50	%	$	401,945		10.00	%
Common Equity Tier 1 Capital (to risk weighted assets)		509,372		12.67	%		180,875		4.50	%		281,362		7.00	%		261,265		6.50	%
Tier 1 Capital (to risk weighted assets)		509,372		12.67	%		241,167		6.00	%		341,654		8.50	%		321,556		8.00	%
Tier 1 Capital (to average tangible assets)		509,372		10.89	%		187,018		4.00	%		187,018		4.00	%		233,773		5.00	%

ACQUISITIONS (Tables)

3 Months Ended

Mar. 31, 2020

Business Combinations [Abstract]

Schedule of Purchase Price Allocation

As of September 30, 2019, the Company finalized its valuation of all assets and liabilities acquired. A summary of the purchase price allocation is as follows (in thousands):

Fair value of consideration paid:
Common shares issued (8,402,010 shares)	$	350,364
Stock options issued (299,352)		8,639
Cash in lieu of fractional shares		21
Total consideration paid	$	359,024

Fair value of assets acquired:
Cash and cash equivalents	$	230,416
Investment securities		42,779
Loans		1,164,281
Premises and equipment		21,988
Core deposit intangibles		25,128
Other assets		18,076
Total assets acquired	$	1,502,668

Fair value of liabilities assumed:
Deposits	$	1,291,310
Other borrowed funds		30,000
Other liabilities		6,070
Total liabilities assumed		1,327,380
Fair value of net assets acquired	$	175,288
Goodwill resulting from acquisition	$	183,736

Schedule of Details of Loans Acquired

The following presents details of all loans acquired as of October 1, 2018:

	Contractual Balance		Fair Value		Discount
	(Dollars in thousands)
Commercial and industrial	$	221,098	$	217,204	$	(3,894	)
Real estate:
Commercial real estate (including multi-family residential)		450,947		443,512		(7,435	)
Commercial real estate construction and land development		167,386		165,387		(1,999	)
1-4 family residential (including home equity)		288,304		285,099		(3,205	)
Residential construction		23,812		23,812		—
Consumer and other		29,684		29,267		(417	)
Total loans	$	1,181,231	$	1,164,281	$	(16,950	)

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited) (Parentheticals)	3 Months Ended
	Mar. 31, 2020 $ / shares
Retained Earnings
Per share amount of cash dividends declared	$ 0.10

CONSOLIDATED BALANCE SHEETS (Unaudited) (Parentheticals) - $ / shares	Mar. 31, 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)	1,000,000	1,000,000
Shares issued (in shares)	0	0
Shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	80,000,000	80,000,000
Common stock, shares issued (in shares)	20,355,120	20,523,816
Common stock, shares outstanding (in shares)	20,355,120	20,523,816

LEASES - Maturity Analysis of Lease Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Lease payments due:
Within one year	$ 2,803	$ 2,867
After one but within two years	2,576	2,608
After two but within three years	1,979	2,204
After three but within four years	1,557	1,596
After four but within five years	924	1,131
After five years	1,996	2,162
Total lease payments	11,835	12,568
Discount on cash flows	1,004	1,091
Total lease liability	$ 10,831	$ 11,477

FAIR VALUE - Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis (Details) - Nonrecurring Basis - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:	$ 0
Other real estate owned	0	$ 0
Assets and liabilities are measured at fair value, nonrecurring basis	0	0
Level 1 \| PCI Loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:		0
Level 1 \| Commercial and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:	0	0
Level 1 \| Commercial real estate (including multi-family residential)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:	0	0
Level 1 \| Consumer and other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:	0
Level 1 \| 1-4 family residential (including home equity)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:	0
Level 1 \| Residential construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:	0	0
Level 1 \| Commercial real estate construction and land development
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:		0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:	0
Other real estate owned	0	0
Assets and liabilities are measured at fair value, nonrecurring basis	0	0
Level 2 \| PCI Loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:		0
Level 2 \| Commercial and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:	0	0
Level 2 \| Commercial real estate (including multi-family residential)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:	0	0
Level 2 \| Consumer and other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:	0
Level 2 \| 1-4 family residential (including home equity)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:	0
Level 2 \| Residential construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:	0	0
Level 2 \| Commercial real estate construction and land development
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:		0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:	3,161
Other real estate owned	12,617	8,337
Assets and liabilities are measured at fair value, nonrecurring basis	24,038	29,453
Level 3 \| PCI Loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:		1,380
Level 3 \| Commercial and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:	4,135	4,332
Level 3 \| Commercial real estate (including multi-family residential)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:	3,178	4,876
Level 3 \| Consumer and other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:	18
Level 3 \| 1-4 family residential (including home equity)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:	91
Level 3 \| Residential construction
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:	$ 838	471
Level 3 \| Commercial real estate construction and land development
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans:		$ 10,057

SUBORDINATED DEBT - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended
	Sep. 30, 2019	Dec. 31, 2017	Mar. 31, 2020	Jan. 01, 2015
Subordinated Borrowing [Line Items]
Junior subordinated debt owed to trusts			$ 11,341
Subordinated Notes \| Fixed-to-Floating Rate Subordinated Notes
Subordinated Borrowing [Line Items]
Debt instrument, face amount	$ 60,000	$ 40,000
Issuance price, percentage	100.00%	100.00%
Proceeds from issuance of debt	$ 58,600	$ 39,400
Stated percentage	4.70%	5.25%
Redemption price, percentage	100.00%	100.00%
Subordinated Notes \| Fixed-to-Floating Rate Subordinated Notes \| 3 month LIBOR
Subordinated Borrowing [Line Items]
Basis spread on variable rate	3.13%	3.03%
F&M Bancshares. Inc. \| Junior Subordinated Debt
Subordinated Borrowing [Line Items]
Debentures, period over which company may defer interest payments			5 years
Debt instrument, face amount			$ 11,300
Debt instrument, carrying value			$ 9,600
Debt instrument, unamortized discount				$ 2,500

SECURITIES - Amortized Cost and Fair Value of Investment Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 498,764	$ 366,331
Gross Unrealized Gains	11,215	7,009
Gross Unrealized Losses	(1,729)	(795)
Fair Value	508,250	372,545
U.S. government and agency securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	27,914	29,420
Gross Unrealized Gains	506	298
Gross Unrealized Losses	(118)	(243)
Fair Value	28,302	29,475
Municipal securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	252,906	84,200
Gross Unrealized Gains	3,634	3,453
Gross Unrealized Losses		(116)
Fair Value	256,540	87,537
Agency mortgage-backed pass-through securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	93,965	104,669
Gross Unrealized Gains	3,961	1,713
Gross Unrealized Losses		(214)
Fair Value	97,926	106,168
Agency collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	102,361	106,351
Gross Unrealized Gains	3,036	1,199
Gross Unrealized Losses	(1,411)	(208)
Fair Value	103,986	107,342
Corporate bonds and other
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	21,618	41,691
Gross Unrealized Gains	78	346
Gross Unrealized Losses	(200)	(14)
Fair Value	$ 21,496	$ 42,023

ACQUISITIONS - Details of Loans Acquired (Details) $ in Thousands	Oct. 01, 2018 USD ($)
Business Acquisition [Line Items]
Discount	$ (16,950)
Contractual Balance
Business Acquisition [Line Items]
Acquired loans receivable	1,181,231
Fair Value
Business Acquisition [Line Items]
Acquired loans receivable	1,164,281
Commercial and industrial
Business Acquisition [Line Items]
Discount	(3,894)
Commercial and industrial \| Contractual Balance
Business Acquisition [Line Items]
Acquired loans receivable	221,098
Commercial and industrial \| Fair Value
Business Acquisition [Line Items]
Acquired loans receivable	217,204
Real estate \| Commercial real estate (including multi-family residential)
Business Acquisition [Line Items]
Discount	(7,435)
Real estate \| Commercial real estate (including multi-family residential) \| Contractual Balance
Business Acquisition [Line Items]
Acquired loans receivable	450,947
Real estate \| Commercial real estate (including multi-family residential) \| Fair Value
Business Acquisition [Line Items]
Acquired loans receivable	443,512
Real estate \| Commercial real estate construction and land development
Business Acquisition [Line Items]
Discount	(1,999)
Real estate \| Commercial real estate construction and land development \| Contractual Balance
Business Acquisition [Line Items]
Acquired loans receivable	167,386
Real estate \| Commercial real estate construction and land development \| Fair Value
Business Acquisition [Line Items]
Acquired loans receivable	165,387
Real estate \| 1-4 family residential (including home equity)
Business Acquisition [Line Items]
Discount	(3,205)
Real estate \| 1-4 family residential (including home equity) \| Contractual Balance
Business Acquisition [Line Items]
Acquired loans receivable	288,304
Real estate \| 1-4 family residential (including home equity) \| Fair Value
Business Acquisition [Line Items]
Acquired loans receivable	285,099
Real estate \| Residential construction \| Contractual Balance
Business Acquisition [Line Items]
Acquired loans receivable	23,812
Real estate \| Residential construction \| Fair Value
Business Acquisition [Line Items]
Acquired loans receivable	23,812
Consumer and other
Business Acquisition [Line Items]
Discount	(417)
Consumer and other \| Contractual Balance
Business Acquisition [Line Items]
Acquired loans receivable	29,684
Consumer and other \| Fair Value
Business Acquisition [Line Items]
Acquired loans receivable	$ 29,267

EARNINGS PER COMMON SHARE

3 Months Ended

Mar. 31, 2020

Earnings Per Share [Abstract]

EARNINGS PER COMMON SHARE

15. EARNINGS PER COMMON SHARE

	Three Months Ended March 31,
	2020				2019
			Per Share				Per Share
	Amount		Amount		Amount		Amount
	(Amounts in thousands, except per share data)
Net income attributable to shareholders	$	3,516			$	12,678
Basic:
Weighted average shares outstanding		20,411	$	0.17		21,733	$	0.58

Diluted:
Add incremental shares for:
Dilutive effect of stock option exercises		279				307
Total		20,690	$	0.17		22,040	$	0.58

Stock options for 81,165 and 41,875 shares were not considered in computing diluted earnings per common share as of March 31, 2020 and 2019, respectively, as they were antidilutive.

GOODWILL AND CORE DEPOSIT INTANGIBLE ASSETS (Tables)

3 Months Ended

Mar. 31, 2020

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill

Changes in the carrying amount of the Company’s goodwill and core deposit intangible assets were as follows:

				Core Deposit
	Goodwill			Intangibles
	(Dollars in thousands)
Balance as of December 31, 2018	$	223,125		$	26,587
Acquisition of LoweryBank branch		578			—
Measurement period adjustment		(61	)		—
Amortization		—			(4,711	)
Balance as of December 31, 2019		223,642			21,876
Amortization		—			(990	)
Balance as of March 31, 2020	$	223,642		$	20,886

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

The estimated aggregate future amortization expense for core deposit intangible assets remaining as of March 31, 2020 is as follows (dollars in thousands):

Remaining 2020	$	2,941
2021		3,296
2022		3,003
2023		2,323
2024		2,188
Thereafter		7,135
Total	$	20,886

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Capital Surplus	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Balance at Dec. 31, 2018	$ 702,984	$ 21,938	$ 571,803	$ 112,131	$ (2,888)
Balance (in shares) at Dec. 31, 2018	21,937,740
Cumulative effect of change in accounting principle related to ASU 2017-08 (Accounting Standards Update 2017-08) at Dec. 31, 2018	$ (1,715)			(1,715)
Total shareholders' equity at beginning of period, as adjusted (See Note 1) at Dec. 31, 2018	701,269	21,938	571,803	110,416	(2,888)
Net income	12,678			12,678
Other comprehensive income	5,903				5,903
Common stock issued in connection with the exercise of stock options and restricted stock awards	$ 664	32	632
Common stock issued in connection with the exercise of stock options and restricted stock awards (in shares)	32,647
Repurchase of common stock	$ (17,344)	(486)	(16,858)
Repurchase of common stock (in shares)	(486,415)
Stock based compensation expense	$ 607		607
Balance at Mar. 31, 2019	$ 703,777	21,484	556,184	123,094	3,015
Balance (in shares) at Mar. 31, 2019	21,483,972
Balance at Dec. 31, 2019	$ 709,865	20,524	521,066	163,375	4,900
Balance (in shares) at Dec. 31, 2019	20,523,816
Net income	$ 3,516			3,516
Other comprehensive income	2,586				2,586
Cash dividends declared	(2,033)			(2,033)
Common stock issued in connection with the exercise of stock options and restricted stock awards	$ 1,157	75	1,082
Common stock issued in connection with the exercise of stock options and restricted stock awards (in shares)	75,638
Repurchase of common stock	$ (9,302)	(244)	(9,058)
Repurchase of common stock (in shares)	(244,334)
Stock based compensation expense	$ 804		804
Balance at Mar. 31, 2020	$ 706,593	$ 20,355	$ 513,894	$ 164,858	$ 7,486
Balance (in shares) at Mar. 31, 2020	20,355,120

CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
ASSETS
Cash and due from banks	$ 156,700	$ 213,347
Interest-bearing deposits at other financial institutions	18,189	132,901
Total cash and cash equivalents	174,889	346,248
Available for sale securities, at fair value	508,250	372,545
Loans held for investment	3,955,546	3,915,310
Less: allowance for loan losses	(37,511)	(29,438)
Loans, net	3,918,035	3,885,872
Accrued interest receivable	17,203	15,468
Premises and equipment, net	66,798	66,790
Other real estate owned	12,617	8,337
Federal Home Loan Bank stock	12,798	6,242
Bank owned life insurance	27,255	27,104
Goodwill	223,642	223,642
Core deposit intangibles, net	20,886	21,876
Other assets	20,056	18,530
TOTAL ASSETS	5,002,429	4,992,654
Deposits:
Noninterest-bearing	1,217,532	1,252,232
Interest-bearing
Demand	341,524	367,278
Money market and savings	1,110,631	1,258,008
Certificates and other time	1,283,887	1,190,583
Total interest-bearing deposits	2,736,042	2,815,869
Total deposits	3,953,574	4,068,101
Accrued interest payable	3,821	4,326
Borrowed funds	190,506	75,503
Subordinated debt	107,930	107,799
Other liabilities	40,005	27,060
Total liabilities	4,295,836	4,282,789
COMMITMENTS AND CONTINGENCIES (See Note 13)
SHAREHOLDERS’ EQUITY:
Preferred stock, $1 par value; 1,000,000 shares authorized; no shares issued or outstanding
Common stock, $1 par value; 80,000,000 shares authorized; 20,355,120 shares issued and outstanding at March 31, 2020 and 20,523,816 shares issued and outstanding at December 31, 2019	20,355	20,524
Capital surplus	513,894	521,066
Retained earnings	164,858	163,375
Accumulated other comprehensive income	7,486	4,900
Total shareholders’ equity	706,593	709,865
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 5,002,429	$ 4,992,654

REGULATORY CAPITAL MATTERS (Tables)

3 Months Ended

Mar. 31, 2020

Banking And Thrift [Abstract]

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations

The following is a summary of the Company’s and the Bank’s actual and required capital ratios at March 31, 2020 and December 31, 2019:



	Actual					Minimum Required for Capital Adequacy Purposes					Minimum Required Plus Capital Conservation Buffer					To Be Categorized As Well Capitalized Under Prompt Corrective Action Provisions
	Amount		Ratio			Amount		Ratio			Amount		Ratio			Amount		Ratio
	(Dollars in thousands)
ALLEGIANCE BANCSHARES, INC.
(Consolidated)
As of March 31, 2020
Total Capital (to risk weighted assets)	$	600,020		14.72	%	$	326,194		8.00	%	$	428,130		10.50	%	N/A		N/A
Common Equity Tier 1 Capital (to risk weighted assets)		454,579		11.15	%		183,484		4.50	%		285,420		7.00	%	N/A		N/A
Tier 1 Capital (to risk weighted assets)		464,132		11.38	%		244,646		6.00	%		346,581		8.50	%	N/A		N/A
Tier 1 Capital (to average tangible assets)		464,132		9.89	%		187,669		4.00	%		187,669		4.00	%	N/A		N/A
As of December 31, 2019
Total Capital (to risk weighted assets)	$	596,684		14.83	%	$	321,775		8.00	%	$	422,330		10.50	%	N/A		N/A
Common Equity Tier 1 Capital (to risk weighted assets)		459,447		11.42	%		180,999		4.50	%		281,553		7.00	%	N/A		N/A
Tier 1 Capital (to risk weighted assets)		468,972		11.66	%		241,331		6.00	%		341,886		8.50	%	N/A		N/A
Tier 1 Capital (to average tangible assets)		468,972		10.02	%		187,146		4.00	%		187,146		4.00	%	N/A		N/A

ALLEGIANCE BANK
As of March 31, 2020
Total Capital (to risk weighted assets)	$	589,975		14.48	%	$	326,004		8.00	%	$	427,880		10.50	%	$	407,505		10.00	%
Common Equity Tier 1 Capital (to risk weighted assets)		512,816		12.58	%		183,377		4.50	%		285,253		7.00	%		264,878		6.50	%
Tier 1 Capital (to risk weighted assets)		512,816		12.58	%		244,503		6.00	%		346,379		8.50	%		326,004		8.00	%
Tier 1 Capital (to average tangible assets)		512,816		10.94	%		187,523		4.00	%		187,523		4.00	%		234,404		5.00	%
As of December 31, 2019
Total Capital (to risk weighted assets)	$	578,425		14.39	%	$	321,556		8.00	%	$	422,043		10.50	%	$	401,945		10.00	%
Common Equity Tier 1 Capital (to risk weighted assets)		509,372		12.67	%		180,875		4.50	%		281,362		7.00	%		261,265		6.50	%
Tier 1 Capital (to risk weighted assets)		509,372		12.67	%		241,167		6.00	%		341,654		8.50	%		321,556		8.00	%
Tier 1 Capital (to average tangible assets)		509,372		10.89	%		187,018		4.00	%		187,018		4.00	%		233,773		5.00	%

DEPOSITS (Tables)

3 Months Ended

Mar. 31, 2020

Deposit Liabilities [Abstract]

Schedule of Maturities of Time Deposits

Scheduled maturities of time deposits for the next five years are as follows (dollars in thousands):

Within one year	$	835,797
After one but within two years		210,645
After two but within three years		136,183
After three but within four years		49,551
After four but within five years		51,711
Total	$	1,283,887

GOODWILL AND CORE DEPOSIT INTANGIBLE ASSETS

3 Months Ended

Mar. 31, 2020

Goodwill And Intangible Assets Disclosure [Abstract]

GOODWILL AND CORE DEPOSIT INTANGIBLE ASSETS

3. GOODWILL AND CORE DEPOSIT INTANGIBLE ASSETS

Changes in the carrying amount of the Company’s goodwill and core deposit intangible assets were as follows:

				Core Deposit
	Goodwill			Intangibles
	(Dollars in thousands)
Balance as of December 31, 2018	$	223,125		$	26,587
Acquisition of LoweryBank branch		578			—
Measurement period adjustment		(61	)		—
Amortization		—			(4,711	)
Balance as of December 31, 2019		223,642			21,876
Amortization		—			(990	)
Balance as of March 31, 2020	$	223,642		$	20,886

The estimated aggregate future amortization expense for core deposit intangible assets remaining as of March 31, 2020 is as follows (dollars in thousands):

Remaining 2020	$	2,941
2021		3,296
2022		3,003
2023		2,323
2024		2,188
Thereafter		7,135
Total	$	20,886

FAIR VALUE

3 Months Ended

Mar. 31, 2020

Fair Value Disclosures [Abstract]

FAIR VALUE

7. FAIR VALUE

Fair Value Hierarchy

•

Level 1—Quoted prices for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date.

•

The carrying amounts and estimated fair values of financial instruments that are reported on the balance sheet are as follows:

	As of March 31, 2020
	Carrying		Estimated Fair Value
	Amount		Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Financial assets
Cash and cash equivalents	$	174,889	$	174,889	$	—	$	—	$	174,889
Available for sale securities		508,250		—		508,250		—		508,250
Loans held for investment, net of allowance		3,918,035		—		—		3,785,598		3,785,598
Accrued interest receivable		17,203		6		3,055		14,142		17,203
Financial liabilities
Deposits	$	3,953,574	$	—	$	3,971,035	$	—	$	3,971,035
Accrued interest payable		3,821		—		3,821		—		3,821
Borrowed funds		190,506		—		200,706		—		200,706
Subordinated debt		107,930		—		101,588		—		101,588

	As of December 31, 2019
	Carrying		Estimated Fair Value
	Amount		Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Financial assets
Cash and cash equivalents	$	346,248	$	346,248	$	—	$	—	$	346,248
Available for sale securities		372,545		—		372,545		—		372,545
Loans held for investment, net of allowance		3,885,872		—		—		3,918,210		3,918,210
Accrued interest receivable		15,468		13		1,783		13,672		15,468
Financial liabilities
Deposits	$	4,068,101	$	—	$	4,073,031	$	—	$	4,073,031
Accrued interest payable		4,326		—		4,326		—		4,326
Borrowed funds		75,503		—		83,302		—		83,302
Subordinated debt		107,799		—		109,607		—		109,607

The following tables present fair values for assets measured at fair value on a recurring basis:

	March 31, 2020
	Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Available for sale securities:
U.S. government and agency securities	$	—	$	28,302	$	—	$	28,302
Municipal securities		—		256,540		—		256,540
Agency mortgage-backed pass-through securities		—		97,926		—		97,926
Agency collateralized mortgage obligations		—		103,986		—		103,986
Corporate bonds and other		—		21,496		—		21,496
Total	$	—	$	508,250	$	—	$	508,250

	December 31, 2019
	Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Available for sale securities:
U.S. government and agency securities	$	—	$	29,475	$	—	$	29,475
Municipal securities		—		87,537		—		87,537
Agency mortgage-backed pass-through securities		—		106,168		—		106,168
Agency collateralized mortgage obligations		—		107,342		—		107,342
Corporate bonds and other		—		42,023		—		42,023
Total	$	—	$	372,545	$	—	$	372,545

	As of March 31, 2020
	Level 1		Level 2		Level 3
	(Dollars in thousands)
Impaired loans:
Commercial and industrial	$	—	$	—	$	4,135
Commercial real estate (including multi- family residential)		—		—		3,178
Commercial real estate construction and land development		—		—		3,161
1-4 family residential (including home equity)		—		—		91
Residential construction		—		—		838
Consumer and other		—		—		18
Other real estate owned		—		—		12,617
	$	—	$	—	$	24,038

	As of December 31, 2019
	Level 1		Level 2		Level 3
	(Dollars in thousands)
Impaired loans:
Commercial and industrial	$	—	$	—	$	4,332
Commercial real estate (including multi- family residential)		—		—		4,876
Commercial real estate construction and land development		—		—		10,057
Residential construction		—		—		471
PCI		—		—		1,380
Other real estate owned		—		—		8,337
	$	—	$	—	$	29,453

Impaired Loans with Specific Allocation of Allowance

Other Real Estate Owned

INCOME TAXES

3 Months Ended

Mar. 31, 2020

Income Tax Disclosure [Abstract]

INCOME TAXES

11. INCOME TAXES

REGULATORY CAPITAL MATTERS - Actual and Required Capital (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Total Capital
Capital	$ 600,020	$ 596,684
Capital to Risk Weighted Assets	14.72%	14.83%
Capital Required for Capital Adequacy	$ 326,194	$ 321,775
Capital Required for Capital Adequacy to Risk Weighted Assets	8.00%	8.00%
Plus Capital Conservation Buffer	$ 428,130	$ 422,330
Plus Capital Conservation Buffer to Risk Weighted Assets	10.50%	10.50%
Common Equity Tier 1 Capital
Common Equity Tier 1 Risk Based Capital	$ 454,579	$ 459,447
Common Equity Tier 1 Risk Based Capital to Risk Weighted Assets	11.15%	11.42%
Common Equity Tier 1 Risk Based Capital Required for Capital Adequacy	$ 183,484	$ 180,999
Common Equity Tier 1 Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	4.50%	4.50%
Plus Common Equity Tier 1 Risk Based Capital	$ 285,420	$ 281,553
Plus Common Equity Tier 1 Risk Based Capital to Risk Weighted Assets	7.00%	7.00%
Tier 1 Capital
Tier 1 Risk Based Capital	$ 464,132	$ 468,972
Tier 1 Risk Based Capital to Risk Weighted Assets	11.38%	11.66%
Tier 1 Risk Based Capital Required for Capital Adequacy	$ 244,646	$ 241,331
Tier 1 Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	6.00%	6.00%
Plus Tier 1 Risk Based Capital	$ 346,581	$ 341,886
Plus Tier 1 Risk Based Capital to Risk Weighted Assets	8.50%	8.50%
Tier 1 Capital
Tier 1 Leverage Capital	$ 464,132	$ 468,972
Tier 1 Leverage Capital to Average Assets	9.89%	10.02%
Tier 1 Leverage Capital Required for Capital Adequacy	$ 187,669	$ 187,146
Tier 1 Leverage Capital Required for Capital Adequacy to Average Assets	4.00%	4.00%
Plus Tier 1 Leverage Capital	$ 187,669	$ 187,146
Plus Tier 1 Leverage Capital to Average Assets	4.00%	4.00%
Allegiance Bank
Total Capital
Capital	$ 589,975	$ 578,425
Capital to Risk Weighted Assets	14.48%	14.39%
Capital Required for Capital Adequacy	$ 326,004	$ 321,556
Capital Required for Capital Adequacy to Risk Weighted Assets	8.00%	8.00%
Plus Capital Conservation Buffer	$ 427,880	$ 422,043
Plus Capital Conservation Buffer to Risk Weighted Assets	10.50%	10.50%
Capital Required to be Well Capitalized	$ 407,505	$ 401,945
Capital Required to be Well Capitalized to Risk Weighted Assets	10.00%	10.00%
Common Equity Tier 1 Capital
Common Equity Tier 1 Risk Based Capital	$ 512,816	$ 509,372
Common Equity Tier 1 Risk Based Capital to Risk Weighted Assets	12.58%	12.67%
Common Equity Tier 1 Risk Based Capital Required for Capital Adequacy	$ 183,377	$ 180,875
Common Equity Tier 1 Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	4.50%	4.50%
Plus Common Equity Tier 1 Risk Based Capital	$ 285,253	$ 281,362
Plus Common Equity Tier 1 Risk Based Capital to Risk Weighted Assets	7.00%	7.00%
Common Equity Tier 1 Risk Based Capital Required to be Well Capitalized	$ 264,878	$ 261,265
Common Equity Tier 1 Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	6.50%	6.50%
Tier 1 Capital
Tier 1 Risk Based Capital	$ 512,816	$ 509,372
Tier 1 Risk Based Capital to Risk Weighted Assets	12.58%	12.67%
Tier 1 Risk Based Capital Required for Capital Adequacy	$ 244,503	$ 241,167
Tier 1 Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	6.00%	6.00%
Plus Tier 1 Risk Based Capital	$ 346,379	$ 341,654
Plus Tier 1 Risk Based Capital to Risk Weighted Assets	8.50%	8.50%
Tier 1 Risk Based Capital Required to be Well Capitalized	$ 326,004	$ 321,556
Tier 1 Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	8.00%	8.00%
Tier 1 Capital
Tier 1 Leverage Capital	$ 512,816	$ 509,372
Tier 1 Leverage Capital to Average Assets	10.94%	10.89%
Tier 1 Leverage Capital Required for Capital Adequacy	$ 187,523	$ 187,018
Tier 1 Leverage Capital Required for Capital Adequacy to Average Assets	4.00%	4.00%
Plus Tier 1 Leverage Capital	$ 187,523	$ 187,018
Plus Tier 1 Leverage Capital to Average Assets	4.00%	4.00%
Tier 1 Leverage Capital Required to be Well Capitalized	$ 234,404	$ 233,773
Tier 1 Leverage Capital Required to be Well Capitalized to Average Assets	5.00%	5.00%

STOCK BASED COMPENSATION - Summary of Restricted Stock Activity (Details) - Restricted Stock shares in Thousands	3 Months Ended
	Mar. 31, 2020 $ / shares shares
Number of Shares
Nonvested share awards outstanding, beginning balance (in shares) \| shares	167
Share awards granted (in shares) \| shares	1
Share awards vested (in shares) \| shares	(7)
Unvested share awards forfeited or cancelled (in shares) \| shares	(2)
Nonvested share awards outstanding, ending balance (in shares) \| shares	159
Weighted Average Grant Date Fair Value
Nonvested share awards outstanding, beginning balance (in dollars per share) \| $ / shares	$ 36.23
Share awards granted (in dollars per share) \| $ / shares	37.20
Share awards vested (in dollars per share) \| $ / shares	24.14
Unvested share awards forfeited or cancelled (in dollars per share) \| $ / shares	39.00
Nonvested share awards outstanding, ending balance \| $ / shares	$ 36.67

EARNINGS PER COMMON SHARE - Narrative (Details) - shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Employee Stock Option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	81,165	41,875

SUBORDINATED DEBT - Summary of Pertinent Information Related to Junior Subordinated Debentures (Details)

3 Months Ended

Mar. 31, 2020

USD ($)

Subordinated Borrowing [Line Items]

Junior Subordinated Debt Owed to Trusts

$ 11,341,000

Junior Subordinated Debt | 3 month LIBOR

Subordinated Borrowing [Line Items]

Interest rate, period end

1.1024%

Junior Subordinated Debt | Farmers & Merchants Capital Trust II

Subordinated Borrowing [Line Items]

Issuance Date

Nov. 13, 2003

Trust Preferred Securities Outstanding

$ 7,500,000

Junior Subordinated Debt Owed to Trusts

$ 7,732,000

Maturity Date

Nov. 08, 2033

^[1]

Junior Subordinated Debt | Farmers & Merchants Capital Trust II | 3 month LIBOR

Subordinated Borrowing [Line Items]

Basis spread on variable rate

3.00%

^[2]

Junior Subordinated Debt | Farmers & Merchants Capital Trust III

Subordinated Borrowing [Line Items]

Issuance Date

Jun. 30, 2005

Trust Preferred Securities Outstanding

$ 3,500,000

Junior Subordinated Debt Owed to Trusts

$ 3,609,000

Maturity Date

Jul. 07, 2035

^[1]

Junior Subordinated Debt | Farmers & Merchants Capital Trust III | 3 month LIBOR

Subordinated Borrowing [Line Items]

Basis spread on variable rate

1.80%

^[2]

[1]	All debentures are currently callable.
[2]	The 3-month LIBOR in effect as of March 31, 2020 was 1.1024%.

LOANS AND ALLOWANCE FOR LOAN LOSSES - Aging Analysis of the Recorded Investment in Past Due Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Accounts Notes And Loans Receivable [Line Items]
Loans Past Due and Still Accruing	$ 23,540	$ 10,001
Nonaccrual Loans	21,621	28,371
Current Loans	3,910,385	3,876,938
Total loans evaluated for impairment	3,955,546	3,915,310
Financing Receivables, 30 to 89 Days Past Due
Accounts Notes And Loans Receivable [Line Items]
Loans Past Due and Still Accruing	23,540	10,001
Commercial and industrial
Accounts Notes And Loans Receivable [Line Items]
Loans Past Due and Still Accruing	5,536	3,098
Nonaccrual Loans	8,669	8,388
Current Loans	688,062	677,874
Total loans evaluated for impairment	702,267	689,360
Commercial and industrial \| Financing Receivables, 30 to 89 Days Past Due
Accounts Notes And Loans Receivable [Line Items]
Loans Past Due and Still Accruing	5,536	3,098
Mortgage warehouse
Accounts Notes And Loans Receivable [Line Items]
Current Loans	1,051	8,304
Total loans evaluated for impairment	1,051	8,304
Real estate \| Commercial real estate (including multi-family residential)
Accounts Notes And Loans Receivable [Line Items]
Loans Past Due and Still Accruing	9,787	4,421
Nonaccrual Loans	7,024	6,741
Current Loans	1,934,269	1,862,620
Total loans evaluated for impairment	1,951,080	1,873,782
Real estate \| Commercial real estate (including multi-family residential) \| Financing Receivables, 30 to 89 Days Past Due
Accounts Notes And Loans Receivable [Line Items]
Loans Past Due and Still Accruing	9,787	4,421
Real estate \| Commercial real estate construction and land development
Accounts Notes And Loans Receivable [Line Items]
Loans Past Due and Still Accruing	4,049	66
Nonaccrual Loans	1,958	9,050
Current Loans	372,980	401,355
Total loans evaluated for impairment	378,987	410,471
Real estate \| Commercial real estate construction and land development \| Financing Receivables, 30 to 89 Days Past Due
Accounts Notes And Loans Receivable [Line Items]
Loans Past Due and Still Accruing	4,049	66
Real estate \| 1-4 family residential (including home equity)
Accounts Notes And Loans Receivable [Line Items]
Loans Past Due and Still Accruing	3,664	1,598
Nonaccrual Loans	2,845	3,294
Current Loans	697,703	694,065
Total loans evaluated for impairment	704,212	698,957
Real estate \| 1-4 family residential (including home equity) \| Financing Receivables, 30 to 89 Days Past Due
Accounts Notes And Loans Receivable [Line Items]
Loans Past Due and Still Accruing	3,664	1,598
Real estate \| Residential construction
Accounts Notes And Loans Receivable [Line Items]
Loans Past Due and Still Accruing	447	564
Nonaccrual Loans	982	746
Current Loans	175,596	191,205
Total loans evaluated for impairment	177,025	192,515
Real estate \| Residential construction \| Financing Receivables, 30 to 89 Days Past Due
Accounts Notes And Loans Receivable [Line Items]
Loans Past Due and Still Accruing	447	564
Consumer and other
Accounts Notes And Loans Receivable [Line Items]
Loans Past Due and Still Accruing	57	254
Nonaccrual Loans	143	152
Current Loans	40,724	41,515
Total loans evaluated for impairment	40,924	41,921
Consumer and other \| Financing Receivables, 30 to 89 Days Past Due
Accounts Notes And Loans Receivable [Line Items]
Loans Past Due and Still Accruing	$ 57	$ 254

LOANS AND ALLOWANCE FOR LOAN LOSSES - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Dec. 31, 2019
Allowance for loan losses:
Balance, beginning of period	$ 29,438	$ 26,331
Provision for loan losses	10,990	1,002
Charge-offs	(3,132)	(326)
Recoveries	215	116
Net charge-offs	(2,917)	(210)
Balance, end of period	37,511	27,123
Allowance for loan losses related to:
Individually evaluated for impairment			$ 3,308	$ 6,775
Collectively evaluated for impairment			34,203	22,663
Total allowance for loan losses	29,438	27,123	37,511	29,438
Recorded investment in loans:
Individually evaluated for impairment			44,150	55,336
Collectively evaluated for impairment			3,911,396	3,859,974
Total loans evaluated for impairment			3,955,546	3,915,310
Commercial and industrial
Allowance for loan losses:
Balance, beginning of period	8,818	8,351
Provision for loan losses	1,865	803
Charge-offs	(734)	(246)
Recoveries	215	91
Net charge-offs	(519)	(155)
Balance, end of period	10,164	8,999
Allowance for loan losses related to:
Individually evaluated for impairment			2,692	4,139
Collectively evaluated for impairment			7,472	4,679
Total allowance for loan losses	10,164	8,999	10,164	8,818
Recorded investment in loans:
Individually evaluated for impairment			12,195	15,572
Collectively evaluated for impairment			690,072	673,788
Total loans evaluated for impairment			702,267	689,360
Mortgage warehouse
Allowance for loan losses:
Balance, beginning of period	0	0
Provision for loan losses	0	0
Charge-offs	0	0
Recoveries	0	0
Net charge-offs	0	0
Balance, end of period	0	0
Allowance for loan losses related to:
Individually evaluated for impairment			0	0
Collectively evaluated for impairment			0	0
Total allowance for loan losses	0	0	0	0
Recorded investment in loans:
Individually evaluated for impairment			0	0
Collectively evaluated for impairment			1,051	8,304
Total loans evaluated for impairment			1,051	8,304
Commercial Real Estate Portfolio Segment \| Commercial real estate (including multi-family residential)
Allowance for loan losses:
Balance, beginning of period	11,170	11,901
Provision for loan losses	5,725	(85)
Charge-offs	(144)	(80)
Recoveries	0	3
Net charge-offs	(144)	(77)
Balance, end of period	16,751	11,739
Allowance for loan losses related to:
Individually evaluated for impairment			238	459
Collectively evaluated for impairment			16,513	10,711
Total allowance for loan losses	16,751	11,739	16,751	11,170
Recorded investment in loans:
Individually evaluated for impairment			24,089	24,813
Collectively evaluated for impairment			1,926,991	1,848,969
Total loans evaluated for impairment			1,951,080	1,873,782
Commercial Real Estate Portfolio Segment \| Commercial real estate construction and land development
Allowance for loan losses:
Balance, beginning of period	4,421	2,724
Provision for loan losses	732	(435)
Charge-offs	(2,164)	0
Recoveries	0	0
Net charge-offs	(2,164)	0
Balance, end of period	2,989	2,289
Allowance for loan losses related to:
Individually evaluated for impairment			225	2,085
Collectively evaluated for impairment			2,764	2,336
Total allowance for loan losses	2,989	2,289	2,989	4,421
Recorded investment in loans:
Individually evaluated for impairment			5,344	12,142
Collectively evaluated for impairment			373,643	398,329
Total loans evaluated for impairment			378,987	410,471
Commercial Real Estate Portfolio Segment \| 1-4 family residential (including home equity)
Allowance for loan losses:
Balance, beginning of period	3,852	2,242
Provision for loan losses	2,296	653
Charge-offs	(90)	0
Recoveries	0	0
Net charge-offs	(90)	0
Balance, end of period	6,058	2,895
Allowance for loan losses related to:
Individually evaluated for impairment			2	0
Collectively evaluated for impairment			6,056	3,852
Total allowance for loan losses	6,058	2,895	6,058	3,852
Recorded investment in loans:
Individually evaluated for impairment			1,482	2,000
Collectively evaluated for impairment			702,730	696,957
Total loans evaluated for impairment			704,212	698,957
Commercial Real Estate Portfolio Segment \| Residential construction
Allowance for loan losses:
Balance, beginning of period	1,057	1,040
Provision for loan losses	374	84
Charge-offs	0	0
Recoveries	0	0
Net charge-offs	0	0
Balance, end of period	1,431	1,124
Allowance for loan losses related to:
Individually evaluated for impairment			144	66
Collectively evaluated for impairment			1,287	991
Total allowance for loan losses	1,431	1,124	1,431	1,057
Recorded investment in loans:
Individually evaluated for impairment			982	745
Collectively evaluated for impairment			176,043	191,770
Total loans evaluated for impairment			177,025	192,515
Consumer and other
Allowance for loan losses:
Balance, beginning of period	120	73
Provision for loan losses	(2)	(18)
Charge-offs	0	0
Recoveries	0	22
Net charge-offs	0	22
Balance, end of period	118	77
Allowance for loan losses related to:
Individually evaluated for impairment			7	26
Collectively evaluated for impairment			111	94
Total allowance for loan losses	$ 118	$ 77	118	120
Recorded investment in loans:
Individually evaluated for impairment			58	64
Collectively evaluated for impairment			40,866	41,857
Total loans evaluated for impairment			$ 40,924	$ 41,921

GOODWILL AND CORE DEPOSIT INTANGIBLE ASSETS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2019
Finite Lived Intangible Assets [Line Items]
Measurement period adjustment		$ (61)
Post Oak Bancshares, Inc.
Finite Lived Intangible Assets [Line Items]
Measurement period adjustment	$ (61)

ACQUISITIONS - Allocation of the Purchase Price to Assets and Liabilities (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill resulting from acquisition		$ 223,642	$ 223,642	$ 223,125
Post Oak Bancshares, Inc.
Business Acquisition [Line Items]
Stock options issued (299,352)	$ 8,639
Cash in lieu of fractional shares	21
Total consideration paid	359,024
Cash and cash equivalents	230,416
Investment securities	42,779
Loans	1,164,281
Premises and equipment	21,988
Core deposit intangibles	25,128
Other assets	18,076
Total assets acquired	1,502,668
Deposits	1,291,310
Other borrowed funds	30,000
Other liabilities	6,070
Total liabilities assumed	1,327,380
Fair value of net assets acquired	175,288
Goodwill resulting from acquisition	183,736
Post Oak Bancshares, Inc. \| Common Stock
Business Acquisition [Line Items]
Common shares issued (8,402,010 shares)	$ 350,364

SECURITIES - Securities in a Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Securities in a Continuous Unrealized Loss Position, Less than 12 months, Estimated Fair Value	$ 76,911	$ 80,433
Securities in a Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(1,729)	(732)
Securities in a Continuous Unrealized Loss Position, More than 12 Months, Estimated Fair Value		4,805
Securities in a Continuous Unrealized Loss Position, More than 12 Months Unrealized Losses		(63)
Securities in a Continuous Unrealized Loss Position, Total Estimated Fair Value	76,911	85,238
Securities in a Continuous Unrealized Loss Position, Total Unrealized Losses	(1,729)	(795)
U.S. government and agency securities
Debt Securities, Available-for-sale [Line Items]
Securities in a Continuous Unrealized Loss Position, Less than 12 months, Estimated Fair Value	20,702	22,295
Securities in a Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(118)	(239)
Securities in a Continuous Unrealized Loss Position, More than 12 Months, Estimated Fair Value		436
Securities in a Continuous Unrealized Loss Position, More than 12 Months Unrealized Losses		(4)
Securities in a Continuous Unrealized Loss Position, Total Estimated Fair Value	20,702	22,731
Securities in a Continuous Unrealized Loss Position, Total Unrealized Losses	(118)	(243)
Municipal securities
Debt Securities, Available-for-sale [Line Items]
Securities in a Continuous Unrealized Loss Position, Less than 12 months, Estimated Fair Value		9,514
Securities in a Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses		(116)
Securities in a Continuous Unrealized Loss Position, Total Estimated Fair Value		9,514
Securities in a Continuous Unrealized Loss Position, Total Unrealized Losses		(116)
Agency collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Securities in a Continuous Unrealized Loss Position, Less than 12 months, Estimated Fair Value	41,822	22,340
Securities in a Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(1,411)	(208)
Securities in a Continuous Unrealized Loss Position, Total Estimated Fair Value	41,822	22,340
Securities in a Continuous Unrealized Loss Position, Total Unrealized Losses	(1,411)	(208)
Corporate bonds and other
Debt Securities, Available-for-sale [Line Items]
Securities in a Continuous Unrealized Loss Position, Less than 12 months, Estimated Fair Value	14,387	5,492
Securities in a Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(200)	(14)
Securities in a Continuous Unrealized Loss Position, Total Estimated Fair Value	14,387	5,492
Securities in a Continuous Unrealized Loss Position, Total Unrealized Losses	$ (200)	(14)
Agency mortgage-backed pass-through securities
Debt Securities, Available-for-sale [Line Items]
Securities in a Continuous Unrealized Loss Position, Less than 12 months, Estimated Fair Value		20,792
Securities in a Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses		(155)
Securities in a Continuous Unrealized Loss Position, More than 12 Months, Estimated Fair Value		4,369
Securities in a Continuous Unrealized Loss Position, More than 12 Months Unrealized Losses		(59)
Securities in a Continuous Unrealized Loss Position, Total Estimated Fair Value		25,161
Securities in a Continuous Unrealized Loss Position, Total Unrealized Losses		$ (214)

FAIR VALUE - Fair Values for Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	$ 508,250	$ 372,545
U.S. government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	28,302	29,475
Municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	256,540	87,537
Agency mortgage-backed pass-through securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	97,926	106,168
Agency collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	103,986	107,342
Corporate bonds and other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	21,496	42,023
Recurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	508,250	372,545
Recurring Basis \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
Recurring Basis \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	508,250	372,545
Recurring Basis \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
Recurring Basis \| U.S. government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	28,302	29,475
Recurring Basis \| U.S. government and agency securities \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
Recurring Basis \| U.S. government and agency securities \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	28,302	29,475
Recurring Basis \| U.S. government and agency securities \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
Recurring Basis \| Municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	256,540	87,537
Recurring Basis \| Municipal securities \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
Recurring Basis \| Municipal securities \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	256,540	87,537
Recurring Basis \| Municipal securities \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
Recurring Basis \| Agency mortgage-backed pass-through securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	97,926	106,168
Recurring Basis \| Agency mortgage-backed pass-through securities \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
Recurring Basis \| Agency mortgage-backed pass-through securities \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	97,926	106,168
Recurring Basis \| Agency mortgage-backed pass-through securities \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
Recurring Basis \| Agency collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	103,986	107,342
Recurring Basis \| Agency collateralized mortgage obligations \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
Recurring Basis \| Agency collateralized mortgage obligations \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	103,986	107,342
Recurring Basis \| Agency collateralized mortgage obligations \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
Recurring Basis \| Corporate bonds and other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	21,496	42,023
Recurring Basis \| Corporate bonds and other \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	0	0
Recurring Basis \| Corporate bonds and other \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	21,496	42,023
Recurring Basis \| Corporate bonds and other \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	$ 0	$ 0

DEPOSITS - Time Deposits by Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Deposit Liabilities [Abstract]
Within one year	$ 835,797
After one but within two years	210,645
After two but within three years	136,183
After three but within four years	49,551
After four but within five years	51,711
Total	$ 1,283,887	$ 1,190,583

CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
INTEREST INCOME:
Loans, including fees	$ 54,624	$ 54,189
Securities:
Taxable	2,087	982
Tax-exempt	546	1,290
Deposits in other financial institutions	195	688
Total interest income	57,452	57,149
INTEREST EXPENSE:
Demand, money market and savings deposits	4,364	3,728
Certificates and other time deposits	6,084	6,256
Borrowed funds	506	1,827
Subordinated debt	1,473	735
Total interest expense	12,427	12,546
NET INTEREST INCOME	45,025	44,603
Provision for loan losses	10,990	1,002
Net interest income after provision for loan losses	34,035	43,601
NONINTEREST INCOME:
Gain on sale of securities	194
(Loss) gain on sale of other real estate and other repossessed assets	(69)	1
Bank owned life insurance income	151	159
Rebate from correspondent bank	493	896
Other	1,330	1,746
Total noninterest income	2,725	3,289
NONINTEREST EXPENSE:
Salaries and employee benefits	19,781	19,684
Net occupancy and equipment	1,907	2,098
Depreciation	866	753
Data processing and software amortization	1,826	1,577
Professional fees	573	599
Regulatory assessments and FDIC insurance	632	728
Core deposit intangibles amortization	990	1,178
Communications	417	430
Advertising	521	704
Acquisition and merger-related expenses		1,173
Other	4,888	2,191
Total noninterest expense	32,401	31,115
INCOME BEFORE INCOME TAXES	4,359	15,775
Provision for income taxes	843	3,097
NET INCOME	$ 3,516	$ 12,678
EARNINGS PER SHARE:
Basic	$ 0.17	$ 0.58
Diluted	0.17	$ 0.58
DIVIDENDS PER SHARE	$ 0.10
Deposit Account, Nonsufficient Funds Fee
NONINTEREST INCOME:
Revenue from contract with customer	$ 169	$ 162
Deposit Account, Service Charge Fee
NONINTEREST INCOME:
Revenue from contract with customer	$ 457	$ 325

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 3,516	$ 12,678
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and core deposit intangibles amortization	1,856	1,931
Provision for loan losses	10,990	1,002
Deferred income tax (benefit) expense	(2,250)	40
Net amortization of premium on investments	506	934
Excess tax benefit from stock based compensation	(25)	(420)
Bank owned life insurance income	(151)	(159)
Net accretion of discount on loans	(1,149)	(2,678)
Net amortization of discount on subordinated debt	28	28
Net accretion of discount on certificates of deposit	(110)	(287)
Loss (gain) on sale or write-downs of other real estate and other repossessed assets	2,283	(1)
Net gain on sale of securities	(194)
Federal Home Loan Bank stock dividends	(71)	(58)
Stock based compensation expense	804	607
Net change in operating leases	636	11
(Increase) decrease in accrued interest receivable and other assets	(4,141)	2,177
(Decrease) Increase in accrued interest payable and other liabilities	(2,118)	3,820
Net cash provided by operating activities	10,410	19,625
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from maturities and principal paydowns of available for sale securities	164,575	554,829
Proceeds from sales of available for sale securities	29,735
Purchase of available for sale securities	(309,922)	(558,438)
Net change in total loans	(49,052)	(51,357)
Purchase of bank premises and equipment	(1,510)	(415)
Proceeds from sale of bank premises, equipment and other real estate	485
Net purchases of Federal Home Loan Bank stock	(6,485)	(3,366)
Net cash paid for the LoweryBank branch acquisition		(32,867)
Net cash used in investing activities	(172,174)	(91,614)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net decrease in noninterest-bearing deposits	(34,700)	(41,260)
Net (decrease) increase in interest-bearing deposits	(79,717)	143,323
Net change in other borrowed funds	100,000	(23,498)
Net increase in borrowings under credit agreement	15,000
Dividends paid to common shareholders	(2,033)
Proceeds from the issuance of common stock, stock option exercises and the ESPP	1,157	664
Repurchase of common stock	(9,302)	(17,344)
Net cash (used in) provided by financing activities	(9,595)	61,885
NET CHANGE IN CASH AND CASH EQUIVALENTS	(171,359)	(10,104)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	346,248	268,947
CASH AND CASH EQUIVALENTS, END OF PERIOD	174,889	258,843
SUPPLEMENTAL CASH FLOW INFORMATION:
Interest paid	12,932	10,847
Cash paid for operating lease liabilities	817	931
SUPPLEMENTAL NONCASH DISCLOSURE:
Lease right-of-use asset obtained in exchange for lessee operating lease liabilities		15,266
Loans transferred to other real estate	4,280	$ 522
Other real estate transferred to loans	1,615
Security trades not yet settled	$ 16,939

LOANS AND ALLOWANCE FOR LOAN LOSSES (Tables)

3 Months Ended

Mar. 31, 2020

Loans And Allowance For Loan Losses [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable

The loan portfolio balances, net of unearned income and fees, consist of various types of loans primarily made to borrowers located within Texas and are classified by major type as follows:

	March 31,			December 31,
	2020			2019
	(Dollars in thousands)
Commercial and industrial	$	702,267		$	689,360
Mortgage warehouse		1,051			8,304
Real estate:
Commercial real estate (including multi-family residential)		1,951,080			1,873,782
Commercial real estate construction and land development		378,987			410,471
1-4 family residential (including home equity)		704,212			698,957
Residential construction		177,025			192,515
Consumer and other		40,924			41,921
Total loans		3,955,546			3,915,310
Allowance for loan losses		(37,511	)		(29,438	)
Loans, net	$	3,918,035		$	3,885,872

Carrying Amount of PCI Loans

	As of March 31, 2020			As of December 31, 2019
	(Dollars in thousands)
Outstanding balance	$	16,372		$	16,589
Less: Discount		(2,267	)		(2,414	)
Less: Allowance		(1,111	)		(259	)
Recorded investment	$	12,994		$	13,916

Past Due Financing Receivables

An aging analysis of the recorded investment, defined as the unpaid principal balance, in past due loans, segregated by class of loans, is as follows:

	March 31, 2020
	Loans Past Due and Still Accruing
	30-89		90 or More		Total Past		Nonaccrual		Current		Total
	Days		Days		Due Loans		Loans		Loans		Loans
	(Dollars in thousands)
Commercial and industrial	$	5,536	$	—	$	5,536	$	8,669	$	688,062	$	702,267
Mortgage warehouse		—		—		—		—		1,051		1,051
Real estate:
Commercial real estate (including multi-family residential)		9,787		—		9,787		7,024		1,934,269		1,951,080
Commercial real estate construction and land development		4,049		—		4,049		1,958		372,980		378,987
1-4 family residential (including home equity)		3,664		—		3,664		2,845		697,703		704,212
Residential construction		447		—		447		982		175,596		177,025
Consumer and other		57		—		57		143		40,724		40,924
Total loans	$	23,540	$	—	$	23,540	$	21,621	$	3,910,385	$	3,955,546

	December 31, 2019
	Loans Past Due and Still Accruing
	30-89		90 or More		Total Past		Nonaccrual		Current		Total
	Days		Days		Due Loans		Loans		Loans		Loans
	(Dollars in thousands)
Commercial and industrial	$	3,098	$	—	$	3,098	$	8,388	$	677,874	$	689,360
Mortgage warehouse		—		—		—		—		8,304		8,304
Real estate:
Commercial real estate (including multi-family residential)		4,421		—		4,421		6,741		1,862,620		1,873,782
Commercial real estate construction and land development		66		—		66		9,050		401,355		410,471
1-4 family residential (including home equity)		1,598		—		1,598		3,294		694,065		698,957
Residential construction		564		—		564		746		191,205		192,515
Consumer and other		254		—		254		152		41,515		41,921
Total loans	$	10,001	$	—	$	10,001	$	28,371	$	3,876,938	$	3,915,310

Impaired Financing Receivables

Impaired loans by class of loans are set forth in the following tables.

	As of March 31, 2020
			Unpaid
	Recorded		Principal		Related
	Investment		Balance		Allowance
	(Dollars in thousands)
With no related allowance recorded:
Commercial and industrial	$	5,368	$	5,433	$	—
Mortgage warehouse		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		20,673		20,753		—
Commercial real estate construction and land development		1,958		1,958		—
1-4 family residential (including home equity)		1,389		1,389		—
Residential construction		—		—		—
Consumer and other		33		33		—
Total		29,421		29,566		—
With an allowance recorded:
Commercial and industrial		6,827		7,522		2,692
Mortgage warehouse		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		3,416		3,416		238
Commercial real estate construction and land development		3,386		3,386		225
1-4 family residential (including home equity)		93		93		2
Residential construction		982		982		144
Consumer and other		25		25		7
Total		14,729		15,424		3,308
Total:
Commercial and industrial		12,195		12,955		2,692
Mortgage warehouse		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		24,089		24,169		238
Commercial real estate construction and land development		5,344		5,344		225
1-4 family residential (including home equity)		1,482		1,482		2
Residential construction		982		982		144
Consumer and other		58		58		7
	$	44,150	$	44,990	$	3,308

	As of December 31, 2019
			Unpaid
	Recorded		Principal		Related
	Investment		Balance		Allowance
	(Dollars in thousands)
With no related allowance recorded:
Commercial and industrial	$	5,721	$	6,136	$	—
Mortgage warehouse		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		19,478		19,558		—
Commercial real estate construction and land development		—		—		—
1-4 family residential (including home equity)		2,000		2,000		—
Residential construction		208		208		—
Consumer and other		38		38		—
Total		27,445		27,940		—
With an allowance recorded:
Commercial and industrial		7,812		7,286		3,480
Mortgage warehouse		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		5,335		5,335		459
Commercial real estate construction and land development		12,142		12,142		2,085
1-4 family residential (including home equity)		—		—		—
Residential construction		537		537		66
Consumer and other		26		26		26
PCI		2,039		2,959		659
Total		27,891		28,285		6,775
Total:
Commercial and industrial		13,533		13,422		3,480
Mortgage warehouse		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		24,813		24,893		459
Commercial real estate construction and land development		12,142		12,142		2,085
1-4 family residential (including home equity)		2,000		2,000		—
Residential construction		745		745		66
Consumer and other		64		64		26
PCI		2,039		2,959		659
	$	55,336	$	56,225	$	6,775

The following table presents average impaired loans and interest recognized on impaired loans for the three months ended March 31, 2020 and 2019:

	Three Months Ended March 31,
	2020				2019
	Average		Interest		Average		Interest
	Recorded		Income		Recorded		Income
	Investment		Recognized		Investment		Recognized
	(Dollars in thousands)
Commercial and industrial	$	12,469	$	102	$	14,352	$	92
Mortgage warehouse		—		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		24,192		233		22,499		95
Commercial real estate construction and land development		5,197		47		3,786		31
1-4 family residential (including home equity)		1,499		3		2,495		4
Residential construction		864		—		—		—
Consumer and other		61		—		40		—
Total	$	44,282	$	385	$	43,172	$	222

Financing Receivable Credit Quality Indicators

Based on the most recent analysis performed, the risk category of loans by class of loan at their recorded investment at March 31, 2020 is as follows:

	Pass		Watch		Special Mention		Substandard		Doubtful		Total
	(Dollars in thousands)
Commercial and industrial	$	647,621	$	19,691	$	10,352	$	24,527	$	76	$	702,267
Mortgage warehouse		1,051		—		—		—		—		1,051
Real estate:
Commercial real estate (including multi-family residential)		1,838,807		55,719		14,240		42,314		—		1,951,080
Commercial real estate construction and land development		363,533		9,451		644		5,359		—		378,987
1-4 family residential (including home equity)		679,037		11,229		6,687		7,259		—		704,212
Residential construction		173,563		2,480		—		982		—		177,025
Consumer and other		40,223		158		352		191		—		40,924
Total loans	$	3,743,835	$	98,728	$	32,275	$	80,632	$	76	$	3,955,546

The following table presents the risk category of loans by class of loan at December 31, 2019:

	Pass		Watch		Special Mention		Substandard		Doubtful		Total
	(Dollars in thousands)
Commercial and industrial	$	641,696	$	14,170	$	9,121	$	24,295	$	78	$	689,360
Mortgage warehouse		8,304		—		—		—		—		8,304
Real estate:
Commercial real estate (including multi-family residential)		1,775,789		47,762		9,289		40,942		—		1,873,782
Commercial real estate construction and land development		388,151		9,583		639		12,098		—		410,471
1-4 family residential (including home equity)		669,288		15,798		5,844		8,027		—		698,957
Residential construction		189,209		2,560		—		746		—		192,515
Consumer and other		41,355		6		358		202		—		41,921
Total loans	$	3,713,792	$	89,879	$	25,251	$	86,310	$	78	$	3,915,310

Allowance for Credit Losses on Financing Receivables

The following table presents the activity in the allowance for loan losses by portfolio type for the three months ended March 31, 2020 and 2019:

	Commercial and industrial			Mortgage warehouse		Commercial real estate (including multi-family residential)			Commercial real estate construction and land development			1-4 family residential (including home equity)			Residential construction		Consumer and other			Total
	(Dollars in thousands)
Allowance for loan losses:
Three Months Ended
Balance December 31, 2019	$	8,818		$	—	$	11,170		$	4,421		$	3,852		$	1,057	$	120		$	29,438
Provision for loan losses		1,865			—		5,725			732			2,296			374		(2	)		10,990
Charge-offs		(734	)		—		(144	)		(2,164	)		(90	)		—		—			(3,132	)
Recoveries		215			—		—			—			—			—		—			215
Net charge-offs		(519	)		—		(144	)		(2,164	)		(90	)		—		—			(2,917	)
Balance March 31, 2020	$	10,164		$	—	$	16,751		$	2,989		$	6,058		$	1,431	$	118		$	37,511
Allowance for loan losses:
Three Months Ended
Balance December 31, 2018	$	8,351		$	—	$	11,901		$	2,724		$	2,242		$	1,040	$	73		$	26,331
Provision for loan losses		803			—		(85	)		(435	)		653			84		(18	)		1,002
Charge-offs		(246	)		—		(80	)		—			—			—		—			(326	)
Recoveries		91			—		3			—			—			—		22			116
Net charge-offs		(155	)		—		(77	)		—			—			—		22			(210	)
Balance March 31, 2019	$	8,999		$	—	$	11,739		$	2,289		$	2,895		$	1,124	$	77		$	27,123

The following table presents the balance of the allowance for loan losses by portfolio type based on the impairment method as of March 31, 2020 and December 31, 2019:

	Commercial and industrial		Mortgage warehouse		Commercial real estate (including multi-family residential)		Commercial real estate construction and land development		1-4 family residential (including home equity)		Residential construction		Consumer and other		Total
	(Dollars in thousands)
Allowance for loan losses related to:
March 31, 2020
Individually evaluated for impairment	$	2,692	$	—	$	238	$	225	$	2	$	144	$	7	$	3,308
Collectively evaluated for impairment		7,472		—		16,513		2,764		6,056		1,287		111		34,203
Total allowance for loan losses	$	10,164	$	—	$	16,751	$	2,989	$	6,058	$	1,431	$	118	$	37,511

December 31, 2019
Individually evaluated for impairment	$	4,139	$	—	$	459	$	2,085	$	—	$	66	$	26	$	6,775
Collectively evaluated for impairment		4,679		—		10,711		2,336		3,852		991		94		22,663
Total allowance for loan losses	$	8,818	$	—	$	11,170	$	4,421	$	3,852	$	1,057	$	120	$	29,438

The following table presents the recorded investment in loans held for investment by portfolio type based on the impairment method as of March 31, 2020 and December 31, 2019:

	Commercial and industrial		Mortgage warehouse		Commercial real estate (including multi-family residential)		Commercial real estate construction and land development		1-4 family residential (including home equity)		Residential construction		Consumer and other		Total
	(Dollars in thousands)
Recorded investment in loans:
March 31, 2020
Individually evaluated for impairment	$	12,195	$	—	$	24,089	$	5,344	$	1,482	$	982	$	58	$	44,150
Collectively evaluated for impairment		690,072		1,051		1,926,991		373,643		702,730		176,043		40,866		3,911,396
Total loans evaluated for impairment	$	702,267	$	1,051	$	1,951,080	$	378,987	$	704,212	$	177,025	$	40,924	$	3,955,546

December 31, 2019
Individually evaluated for impairment	$	15,572	$	—	$	24,813	$	12,142	$	2,000	$	745	$	64	$	55,336
Collectively evaluated for impairment		673,788		8,304		1,848,969		398,329		696,957		191,770		41,857		3,859,974
Total loans evaluated for impairment	$	689,360	$	8,304	$	1,873,782	$	410,471	$	698,957	$	192,515	$	41,921	$	3,915,310

Troubled Debt Restructurings on Financing Receivables

The following table presents information regarding loans modified in a troubled debt restructuring during the three months ended March 31, 2020 and 2019:

	Three Months Ended March 31,
	2020						2019
	Number of Contracts		Pre-Modification of Outstanding Recorded Investment		Post Modification of Outstanding Recorded Investment		Number of Contracts		Pre-Modification of Outstanding Recorded Investment		Post Modification of Outstanding Recorded Investment
	(Dollars in thousands)
Troubled Debt Restructurings
Commercial and industrial		5	$	1,104	$	1,104		6	$	511	$	511
Mortgage warehouse		—		—		—		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		—		—		—		—		—		—
Commercial real estate construction and land development		—		—		—		—		—		—
1-4 family residential (including home equity)		1		118		118		1		397		397
Residential construction		—		—		—		—		—		—
Consumer and other		1		30		30		1		38		38
Total		7	$	1,252	$	1,252		8	$	946	$	946

OFF-BALANCE SHEET ARRANGEMENTS, COMMITMENTS AND CONTINGENCIES

3 Months Ended

Mar. 31, 2020

Commitments And Contingencies Disclosure [Abstract]

OFF-BALANCE SHEET ARRANGEMENTS, COMMITMENTS AND CONTINGENCIES

13. OFF-BALANCE SHEET ARRANGEMENTS, COMMITMENTS AND CONTINGENCIES

The contractual amounts of financial instruments with off-balance sheet risk are as follows:

	March 31, 2020				December 31, 2019
	Fixed		Variable		Fixed		Variable
	Rate		Rate		Rate		Rate
	(Dollars in thousands)
Commitments to extend credit	$	549,277	$	509,079	$	507,411	$	531,470
Standby letters of credit		11,945		4,955		10,843		4,309
Total	$	561,222	$	514,034	$	518,254	$	535,779

Litigation

NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING AND REPORTING POLICIES (Policies)	3 Months Ended
	Mar. 31, 2020
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation-The accompanying unaudited condensed consolidated financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial information and in accordance with guidance provided by the Securities and Exchange Commission. Accordingly, the condensed consolidated financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates. In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments considered necessary for a fair presentation of the financial position, results of operations and cash flows of the Company on a consolidated basis, and all such adjustments are of a normal recurring nature. Transactions between the Company and the Bank have been eliminated. The condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and footnotes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2019. Operating results for the three months ended March 31, 2020 are not necessarily indicative of the results that may be expected for the year ending December 31, 2020.
Subsequent Events	Risks and Uncertainties The coronavirus (COVID-19) pandemic has negatively impacted the global economy, disrupted global supply chains and increased unemployment levels. The resulting temporary closure of many businesses and the implementation of social distancing and sheltering-in-place policies has and may continue to impact many of the Company’s customers. While the full effects of the pandemic remain unknown, the Company is committed to supporting its customers, employees and communities during this difficult time. The Company has given hardship relief assistance to customers, including the consideration of various loan payment deferral and fee waiver options, and encourages customers to reach out for assistance to support their individual circumstances. On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (CARES Act) was signed by the President of the United States. Certain provisions within the CARES Act encourage financial institutions to practice prudent efforts to work with borrowers impacted by COVID-19. Under these provisions, modifications deemed to be COVID-19-related would not be considered a troubled debt restructuring (“TDR”) if the loan was not more than 30 days past due as of December 31, 2019 and the deferral was executed between March 1, 2020 and the earlier of 60 days after the date of termination of the COVID-19 national emergency or December 31, 2020. The banking regulators issued similar guidance, which also clarified that a COVID-19-related modification should not be considered a TDR if the borrower was current on payments at the time the underlying loan modification program was implemented and if the modification is considered to be short-term. Under these terms, as of March 31, 2020, the Company had processed payment deferrals for 395 loans with an aggregate loan balance of $203.8 million. Through April 26, 2020, the number of deferrals increased to 1,563 with an aggregate loan balance of $838.1 million, with substantially all considered performing at the time of deferral. These deferrals were generally no more than 90 days in duration. Additionally, the Bank is a lender for the Small Business Administration's (“SBA”) Paycheck Protection Program ("PPP"), a program under the CARES Act, and other SBA, Federal Reserve or United States Treasury programs that have been created in response to the pandemic and may be a lender for programs created in the future. These programs are new and their effects on the Company’s business are uncertain. Through April 26, 2020, the Company had approved more than 3,500 PPP loans in excess of $640 million under the allocation approved by Congress. The Company identified several loan portfolio categories that it considered to be most “at-risk” from the COVID-19 pandemic, such as, oil and gas, hotel, and restaurants and bars with outstanding loan balances of $80.7 million, $133.0 million and $101.3 million at March 31, 2020, respectively. The Company’s exposure to the oil and gas industry is minimal as it does not participate in exploration and production or reserve-based lending; however, this industry is vital to the Houston region and the indirect effects could be significant. The Company considers these “at-risk” portfolios to be the most vulnerable to financial difficulties and risks from business disruptions caused by the pandemic spread mitigation efforts. Due to the uncertainty in the economy and unemployment from COVID-19 and the sharp reduction in crude oil prices, the impact could extend to the Company’s securities portfolio, income taxes, other real estate owned and goodwill and intangibles among other items, although the impact is dependent on future events which are highly uncertain and cannot be predicted at this time. In a period of economic contraction, additional loan losses and lost interest income may occur, either in the industries previously noted or others to which the Company has exposure. The Company continues to accrue interest on loans modified under the new accounting standards. To the extent those borrowers are unable to resume normal contractual payments, the Company could experience additional losses of principal and interest.
New Accounting Standards	New Accounting Standards Adoption of New Accounting Standards ASC 310-40, “Receivables – Troubled Debt Restructurings by Creditors,” (“ASC 310-40”), a restructuring of debt constitutes a troubled debt restructuring (“TDR”) if the creditor, for economic or legal reasons related to the debtor’s financial difficulties, grants a concession to the debtor that it would not otherwise consider. In response to COVID-19, new guidance was issued that complies with GAAP whereby, subject to certain restrictions, loan modifications may not be subject to classification as TDRs. Through April 26, 2020, the Company granted deferrals on 1,563 loans with an aggregate loan balance of $838.1 million. Borrowers considered current are those that are less than 30 days past due on their contractual payments at the time a modification program is implemented. This interagency guidance is expected to have an impact on the Company’s financial statements. ASU 2018-13, “Fair Value Measurement (Topic 820). – Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement.” ASU 2018-13 modifies the disclosure requirements on fair value measurements in Topic 820. The amendments in ASU 2018-13 remove disclosures that no longer are considered cost beneficial, modify/clarify the specific requirements of certain disclosures and add disclosure requirements identified as relevant. ASU 2018-13 became effective for the Company on January 1, 2020 and did not have a significant impact on the Company’s financial statements. ASU No. 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 became effective for the Company on January 1, 2020, with earlier adoption permitted and is not expected to have a significant impact on the Company's financial statements. 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 does not significantly change lease accounting requirements applicable to lessors; however, certain changes were made to align, where necessary, lessor accounting with the lessee accounting model and ASC Topic 606, “Revenue from Contracts with Customers.” ASU 2016-02 became effective for the Company on January 1, 2019. The Company adopted the standard through the required modified retrospective approach by applying the allowed transition method whereby comparative periods were not restated and a cumulative effect adjustment to the opening balance of retained earnings was recognized as of January 1, 2019. Topic 842 requires the recognition of a lease liability measured as the present value of unpaid lease payments for operating leases where the Company is the lessee, and a corresponding right-of-use (ROU) asset for the right to use the leased properties. The Company elected not to reassess whether contracts are or contain leases, lease classification or initial direct costs for existing leases, a set of practical expedients for transition provided by ASU 2016-12. Further, the Company elected the practical expedient to use hindsight in determining the lease term and assessing impairment. The election of the hindsight practical expedient resulted in longer lease terms for a limited number of strategic locations based on relevant factors as of the adoption date. The Company implemented a lease management system to assist in centralizing, maintaining and accounting for all leases to ensure the Company meets the ASU’s reporting and disclosure requirements. Prior comparable periods are presented in accordance with previous guidance under Accounting Standards Codification (ASC) 840, “Leases.” See Note 6 – Leases for further information regarding the Company’s leases on certain properties and equipment under operating leases. ASU 2017-08, “Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20) - Premium Amortization on Purchased Callable Debt Securities.” ASU 2017-08 shortens the amortization period for certain callable debt securities held at a premium to require such premiums to be amortized to the earliest call date unless applicable guidance related to certain pools of securities is applied to consider estimated prepayments. Under prior guidance, entities were generally required to amortize premiums on individual, non-pooled callable debt securities as a yield adjustment over the contractual life of the security. ASU 2017-08 does not change the accounting for callable debt securities held at a discount. ASU 2017-08 became effective for the Company on January 1, 2019. Upon adoption, the Company recognized a cumulative effect reduction in retained earnings totaling $1.7 million. Newly Issued But Not Yet Effective Accounting Standards ASU 2016-13, “Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” Among other things, ASU 2016-13 (“CECL”) 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. Financial institutions and other organizations will now use forward-looking information to better form their credit loss estimates. Many of the loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. In addition, CECL amends the accounting for credit losses on available for sale debt securities and purchased financial assets with credit deterioration. CECL became effective for the Company on January 1, 2020 using the modified retrospective approach; however, the CARES Act, signed by the President of the United States on March 27, 2020 includes an option for entities to delay the implementation of ASU 2016-13 until the earlier of the termination date of the national emergency declaration by the President or December 31, 2020. The Company expects to adopt CECL as of January 1, 2020 after the deferral period ends. Due to the uncertainty of the impact of COVID-19 and the sharp decline in crude oil prices, which can be impactful to the Houston market, the Company has delayed its implementation of CECL and has calculated and recorded its provision for loan losses under the incurred loss model that existed prior to ASU 2016-13. The Company will continue to perform and enhance CECL model operations parallel with the incurred loss model throughout 2020, or until adoption. ASU 2019-12, “Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes” to simplify various aspects of the current guidance to promote consistent application of the standard among reporting entities by moving certain exceptions to the general principles. The amendment is effective for fiscal years beginning after December 15, 2020, with early adoption permitted. ASU 2019-12 will be become effective for the Company on January 1, 2021 and is not expected to have a significant impact on the Company’s financial statements.

LOANS AND ALLOWANCE FOR LOAN LOSSES

3 Months Ended

Mar. 31, 2020

Loans And Allowance For Loan Losses [Abstract]

LOANS AND ALLOWANCE FOR LOAN LOSSES

5. LOANS AND ALLOWANCE FOR LOAN LOSSES

The loan portfolio balances, net of unearned income and fees, consist of various types of loans primarily made to borrowers located within Texas and are classified by major type as follows:

	March 31,			December 31,
	2020			2019
	(Dollars in thousands)
Commercial and industrial	$	702,267		$	689,360
Mortgage warehouse		1,051			8,304
Real estate:
Commercial real estate (including multi-family residential)		1,951,080			1,873,782
Commercial real estate construction and land development		378,987			410,471
1-4 family residential (including home equity)		704,212			698,957
Residential construction		177,025			192,515
Consumer and other		40,924			41,921
Total loans		3,955,546			3,915,310
Allowance for loan losses		(37,511	)		(29,438	)
Loans, net	$	3,918,035		$	3,885,872

Acquired Loans

PCI loans

	As of March 31, 2020			As of December 31, 2019
	(Dollars in thousands)
Outstanding balance	$	16,372		$	16,589
Less: Discount		(2,267	)		(2,414	)
Less: Allowance		(1,111	)		(259	)
Recorded investment	$	12,994		$	13,916

Changes in the accretable yield for PCI loans for the three months ended March 31, 2020 and 2019 were deemed immaterial.

Nonaccrual and Past Due Loans

An aging analysis of the recorded investment, defined as the unpaid principal balance, in past due loans, segregated by class of loans, is as follows:

	March 31, 2020
	Loans Past Due and Still Accruing
	30-89		90 or More		Total Past		Nonaccrual		Current		Total
	Days		Days		Due Loans		Loans		Loans		Loans
	(Dollars in thousands)
Commercial and industrial	$	5,536	$	—	$	5,536	$	8,669	$	688,062	$	702,267
Mortgage warehouse		—		—		—		—		1,051		1,051
Real estate:
Commercial real estate (including multi-family residential)		9,787		—		9,787		7,024		1,934,269		1,951,080
Commercial real estate construction and land development		4,049		—		4,049		1,958		372,980		378,987
1-4 family residential (including home equity)		3,664		—		3,664		2,845		697,703		704,212
Residential construction		447		—		447		982		175,596		177,025
Consumer and other		57		—		57		143		40,724		40,924
Total loans	$	23,540	$	—	$	23,540	$	21,621	$	3,910,385	$	3,955,546

	December 31, 2019
	Loans Past Due and Still Accruing
	30-89		90 or More		Total Past		Nonaccrual		Current		Total
	Days		Days		Due Loans		Loans		Loans		Loans
	(Dollars in thousands)
Commercial and industrial	$	3,098	$	—	$	3,098	$	8,388	$	677,874	$	689,360
Mortgage warehouse		—		—		—		—		8,304		8,304
Real estate:
Commercial real estate (including multi-family residential)		4,421		—		4,421		6,741		1,862,620		1,873,782
Commercial real estate construction and land development		66		—		66		9,050		401,355		410,471
1-4 family residential (including home equity)		1,598		—		1,598		3,294		694,065		698,957
Residential construction		564		—		564		746		191,205		192,515
Consumer and other		254		—		254		152		41,515		41,921
Total loans	$	10,001	$	—	$	10,001	$	28,371	$	3,876,938	$	3,915,310

Impaired Loans

Impaired loans by class of loans are set forth in the following tables.

	As of March 31, 2020
			Unpaid
	Recorded		Principal		Related
	Investment		Balance		Allowance
	(Dollars in thousands)
With no related allowance recorded:
Commercial and industrial	$	5,368	$	5,433	$	—
Mortgage warehouse		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		20,673		20,753		—
Commercial real estate construction and land development		1,958		1,958		—
1-4 family residential (including home equity)		1,389		1,389		—
Residential construction		—		—		—
Consumer and other		33		33		—
Total		29,421		29,566		—
With an allowance recorded:
Commercial and industrial		6,827		7,522		2,692
Mortgage warehouse		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		3,416		3,416		238
Commercial real estate construction and land development		3,386		3,386		225
1-4 family residential (including home equity)		93		93		2
Residential construction		982		982		144
Consumer and other		25		25		7
Total		14,729		15,424		3,308
Total:
Commercial and industrial		12,195		12,955		2,692
Mortgage warehouse		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		24,089		24,169		238
Commercial real estate construction and land development		5,344		5,344		225
1-4 family residential (including home equity)		1,482		1,482		2
Residential construction		982		982		144
Consumer and other		58		58		7
	$	44,150	$	44,990	$	3,308

	As of December 31, 2019
			Unpaid
	Recorded		Principal		Related
	Investment		Balance		Allowance
	(Dollars in thousands)
With no related allowance recorded:
Commercial and industrial	$	5,721	$	6,136	$	—
Mortgage warehouse		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		19,478		19,558		—
Commercial real estate construction and land development		—		—		—
1-4 family residential (including home equity)		2,000		2,000		—
Residential construction		208		208		—
Consumer and other		38		38		—
Total		27,445		27,940		—
With an allowance recorded:
Commercial and industrial		7,812		7,286		3,480
Mortgage warehouse		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		5,335		5,335		459
Commercial real estate construction and land development		12,142		12,142		2,085
1-4 family residential (including home equity)		—		—		—
Residential construction		537		537		66
Consumer and other		26		26		26
PCI		2,039		2,959		659
Total		27,891		28,285		6,775
Total:
Commercial and industrial		13,533		13,422		3,480
Mortgage warehouse		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		24,813		24,893		459
Commercial real estate construction and land development		12,142		12,142		2,085
1-4 family residential (including home equity)		2,000		2,000		—
Residential construction		745		745		66
Consumer and other		64		64		26
PCI		2,039		2,959		659
	$	55,336	$	56,225	$	6,775

The following table presents average impaired loans and interest recognized on impaired loans for the three months ended March 31, 2020 and 2019:

	Three Months Ended March 31,
	2020				2019
	Average		Interest		Average		Interest
	Recorded		Income		Recorded		Income
	Investment		Recognized		Investment		Recognized
	(Dollars in thousands)
Commercial and industrial	$	12,469	$	102	$	14,352	$	92
Mortgage warehouse		—		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		24,192		233		22,499		95
Commercial real estate construction and land development		5,197		47		3,786		31
1-4 family residential (including home equity)		1,499		3		2,495		4
Residential construction		864		—		—		—
Consumer and other		61		—		40		—
Total	$	44,282	$	385	$	43,172	$	222

Credit Quality Indicators

The following is a general description of the risk ratings used:

Based on the most recent analysis performed, the risk category of loans by class of loan at their recorded investment at March 31, 2020 is as follows:

	Pass		Watch		Special Mention		Substandard		Doubtful		Total
	(Dollars in thousands)
Commercial and industrial	$	647,621	$	19,691	$	10,352	$	24,527	$	76	$	702,267
Mortgage warehouse		1,051		—		—		—		—		1,051
Real estate:
Commercial real estate (including multi-family residential)		1,838,807		55,719		14,240		42,314		—		1,951,080
Commercial real estate construction and land development		363,533		9,451		644		5,359		—		378,987
1-4 family residential (including home equity)		679,037		11,229		6,687		7,259		—		704,212
Residential construction		173,563		2,480		—		982		—		177,025
Consumer and other		40,223		158		352		191		—		40,924
Total loans	$	3,743,835	$	98,728	$	32,275	$	80,632	$	76	$	3,955,546

The following table presents the risk category of loans by class of loan at December 31, 2019:

	Pass		Watch		Special Mention		Substandard		Doubtful		Total
	(Dollars in thousands)
Commercial and industrial	$	641,696	$	14,170	$	9,121	$	24,295	$	78	$	689,360
Mortgage warehouse		8,304		—		—		—		—		8,304
Real estate:
Commercial real estate (including multi-family residential)		1,775,789		47,762		9,289		40,942		—		1,873,782
Commercial real estate construction and land development		388,151		9,583		639		12,098		—		410,471
1-4 family residential (including home equity)		669,288		15,798		5,844		8,027		—		698,957
Residential construction		189,209		2,560		—		746		—		192,515
Consumer and other		41,355		6		358		202		—		41,921
Total loans	$	3,713,792	$	89,879	$	25,251	$	86,310	$	78	$	3,915,310

Allowance for Loan Losses

The following table presents the activity in the allowance for loan losses by portfolio type for the three months ended March 31, 2020 and 2019:

	Commercial and industrial			Mortgage warehouse		Commercial real estate (including multi-family residential)			Commercial real estate construction and land development			1-4 family residential (including home equity)			Residential construction		Consumer and other			Total
	(Dollars in thousands)
Allowance for loan losses:
Three Months Ended
Balance December 31, 2019	$	8,818		$	—	$	11,170		$	4,421		$	3,852		$	1,057	$	120		$	29,438
Provision for loan losses		1,865			—		5,725			732			2,296			374		(2	)		10,990
Charge-offs		(734	)		—		(144	)		(2,164	)		(90	)		—		—			(3,132	)
Recoveries		215			—		—			—			—			—		—			215
Net charge-offs		(519	)		—		(144	)		(2,164	)		(90	)		—		—			(2,917	)
Balance March 31, 2020	$	10,164		$	—	$	16,751		$	2,989		$	6,058		$	1,431	$	118		$	37,511
Allowance for loan losses:
Three Months Ended
Balance December 31, 2018	$	8,351		$	—	$	11,901		$	2,724		$	2,242		$	1,040	$	73		$	26,331
Provision for loan losses		803			—		(85	)		(435	)		653			84		(18	)		1,002
Charge-offs		(246	)		—		(80	)		—			—			—		—			(326	)
Recoveries		91			—		3			—			—			—		22			116
Net charge-offs		(155	)		—		(77	)		—			—			—		22			(210	)
Balance March 31, 2019	$	8,999		$	—	$	11,739		$	2,289		$	2,895		$	1,124	$	77		$	27,123

The following table presents the balance of the allowance for loan losses by portfolio type based on the impairment method as of March 31, 2020 and December 31, 2019:

	Commercial and industrial		Mortgage warehouse		Commercial real estate (including multi-family residential)		Commercial real estate construction and land development		1-4 family residential (including home equity)		Residential construction		Consumer and other		Total
	(Dollars in thousands)
Allowance for loan losses related to:
March 31, 2020
Individually evaluated for impairment	$	2,692	$	—	$	238	$	225	$	2	$	144	$	7	$	3,308
Collectively evaluated for impairment		7,472		—		16,513		2,764		6,056		1,287		111		34,203
Total allowance for loan losses	$	10,164	$	—	$	16,751	$	2,989	$	6,058	$	1,431	$	118	$	37,511

December 31, 2019
Individually evaluated for impairment	$	4,139	$	—	$	459	$	2,085	$	—	$	66	$	26	$	6,775
Collectively evaluated for impairment		4,679		—		10,711		2,336		3,852		991		94		22,663
Total allowance for loan losses	$	8,818	$	—	$	11,170	$	4,421	$	3,852	$	1,057	$	120	$	29,438

The following table presents the recorded investment in loans held for investment by portfolio type based on the impairment method as of March 31, 2020 and December 31, 2019:

	Commercial and industrial		Mortgage warehouse		Commercial real estate (including multi-family residential)		Commercial real estate construction and land development		1-4 family residential (including home equity)		Residential construction		Consumer and other		Total
	(Dollars in thousands)
Recorded investment in loans:
March 31, 2020
Individually evaluated for impairment	$	12,195	$	—	$	24,089	$	5,344	$	1,482	$	982	$	58	$	44,150
Collectively evaluated for impairment		690,072		1,051		1,926,991		373,643		702,730		176,043		40,866		3,911,396
Total loans evaluated for impairment	$	702,267	$	1,051	$	1,951,080	$	378,987	$	704,212	$	177,025	$	40,924	$	3,955,546

December 31, 2019
Individually evaluated for impairment	$	15,572	$	—	$	24,813	$	12,142	$	2,000	$	745	$	64	$	55,336
Collectively evaluated for impairment		673,788		8,304		1,848,969		398,329		696,957		191,770		41,857		3,859,974
Total loans evaluated for impairment	$	689,360	$	8,304	$	1,873,782	$	410,471	$	698,957	$	192,515	$	41,921	$	3,915,310

Troubled Debt Restructurings

The following table presents information regarding loans modified in a troubled debt restructuring during the three months ended March 31, 2020 and 2019:

	Three Months Ended March 31,
	2020						2019
	Number of Contracts		Pre-Modification of Outstanding Recorded Investment		Post Modification of Outstanding Recorded Investment		Number of Contracts		Pre-Modification of Outstanding Recorded Investment		Post Modification of Outstanding Recorded Investment
	(Dollars in thousands)
Troubled Debt Restructurings
Commercial and industrial		5	$	1,104	$	1,104		6	$	511	$	511
Mortgage warehouse		—		—		—		—		—		—
Real estate:
Commercial real estate (including multi-family residential)		—		—		—		—		—		—
Commercial real estate construction and land development		—		—		—		—		—		—
1-4 family residential (including home equity)		1		118		118		1		397		397
Residential construction		—		—		—		—		—		—
Consumer and other		1		30		30		1		38		38
Total		7	$	1,252	$	1,252		8	$	946	$	946

BORROWINGS AND BORROWING CAPACITY

3 Months Ended

Mar. 31, 2020

Debt Disclosure [Abstract]

BORROWINGS AND BORROWING CAPACITY

9. BORROWINGS AND BORROWING CAPACITY

STOCK BASED COMPENSATION (Tables)

3 Months Ended

Mar. 31, 2020

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity

A summary of the activity in the stock option plans during the three months ended March 31, 2020 is set forth below:

				Weighted		Weighted
				Average		Average		Aggregate
	Number of			Exercise		Remaining		Intrinsic
	Options			Price		Contractual Term		Value
	(In thousands)					(In years)		(In thousands)
Options outstanding, January 1, 2020		616		$	19.90		4.00	$	10,904
Options granted		—			—
Options exercised		(78	)		15.20
Options forfeited		—			—
Options outstanding, March 31, 2020		538		$	20.60		3.96	$	1,892
Options vested and exercisable, March 31, 2020		502		$	19.71		3.75	$	2,207

Schedule of Share-based Compensation, Restricted Stock Units Award Activity

A summary of the activity of the nonvested shares of restricted stock as of March 31, 2020 is as follows:

				Weighted
				Average Grant
	Number of			Date Fair
	Shares			Value
	(Shares in thousands)
Nonvested share awards outstanding, January 1, 2020		167		$	36.23
Share awards granted		1			37.20
Share awards vested		(7	)		24.14
Unvested share awards forfeited or cancelled		(2	)		39.00
Nonvested share awards outstanding, March 31, 2020		159		$	36.67

LEASES (Tables)

3 Months Ended

Mar. 31, 2020

Leases [Abstract]

Supplemental Lease Information

Supplemental lease information at the dates indicated is as follows:


	March 31, 2020			December 31, 2019
	(Dollars in thousands)
Balance Sheet:
Operating lease right of use asset classified as premises and equipment	$	10,544		$	11,180
Operating lease liability classified as other liabilities		10,831			11,477
Weighted average lease term, in years		5.38			5.53
Weighted average discount rate		3.20	%		3.19	%

Maturity Analysis of Lease Liabilities

A maturity analysis of the Company’s lease liabilities is as follows:

	March 31, 2020		December 31, 2019
	(Dollars in thousands)
Lease payments due:
Within one year	$	2,803	$	2,867
After one but within two years		2,576		2,608
After two but within three years		1,979		2,204
After three but within four years		1,557		1,596
After four but within five years		924		1,131
After five years		1,996		2,162
Total lease payments		11,835		12,568
Discount on cash flows		1,004		1,091
Total lease liability	$	10,831	$	11,477

NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING AND REPORTING POLICIES (Details) $ in Thousands	Apr. 26, 2020 USD ($) Loan	Mar. 31, 2020 USD ($) office Bank Loan	Dec. 31, 2018 USD ($)
New Accounting Pronouncement Early Adoption [Line Items]
Number of offices in which entity operates \| office		27
Number of banks in which entity operates \| Bank		26
ASU 2017-08
New Accounting Pronouncement Early Adoption [Line Items]
Cumulative effect of adopting new accounting principle in period of adoption			$ 1,715
ASU 2017-08 \| Retained Earnings
New Accounting Pronouncement Early Adoption [Line Items]
Cumulative effect of adopting new accounting principle in period of adoption		$ 1,700	$ 1,715
Subsequent Event
New Accounting Pronouncement Early Adoption [Line Items]
Number of loans deferral due to CARES Act \| Loan	1,563
Outstanding loan balances deferrals due to CARES Act	$ 838,100
Number of approved loans \| Loan	3,500
Amount of loan under approved allocation	$ 640,000
COVID-19
New Accounting Pronouncement Early Adoption [Line Items]
Number of loans deferral due to CARES Act \| Loan		395
Outstanding loan balances deferrals due to CARES Act		$ 203,800
COVID-19 \| Oil and Gas
New Accounting Pronouncement Early Adoption [Line Items]
Outstanding loan balances deferrals due to CARES Act		80,700
COVID-19 \| Hotel and Restaurants
New Accounting Pronouncement Early Adoption [Line Items]
Outstanding loan balances deferrals due to CARES Act		133,000
COVID-19 \| Bars
New Accounting Pronouncement Early Adoption [Line Items]
Outstanding loan balances deferrals due to CARES Act		$ 101,300
COVID-19 \| Subsequent Event
New Accounting Pronouncement Early Adoption [Line Items]
Number of loans deferral due to CARES Act \| Loan	1,563
Outstanding loan balances deferrals due to CARES Act	$ 838,100
Houston
New Accounting Pronouncement Early Adoption [Line Items]
Number of loan production offices in which entity operates \| office		1
Beaumont
New Accounting Pronouncement Early Adoption [Line Items]
Number of loan production offices in which entity operates \| office		1

LEASES - Narrative (Details) $ in Thousands	3 Months Ended
LEASES - Narrative (Details) $ in Thousands	Mar. 31, 2020 USD ($) BranchLocationandOfficeSpace	Sep. 30, 2019 USD ($) Property	Mar. 31, 2019 USD ($)
Lessee Lease Description [Line Items]
Number of leased branch locations and office space along with equipment \| BranchLocationandOfficeSpace	14
Short-term lease costs	$ 22		$ 191
Operating lease, existence of option to extend	true
Allegiance Bank
Lessee Lease Description [Line Items]
Operating lease, cost		$ 10,700
Number of leased properties \| Property		2
Occupancy and Equipment Expenses
Lessee Lease Description [Line Items]
Operating lease, cost	$ 817		$ 942
Maximum
Lessee Lease Description [Line Items]
Lessee, operating Lease, term of contract	12 months
Operating lease renewal term	5 years
Minimum
Lessee Lease Description [Line Items]
Operating lease renewal term	1 year

LOANS AND ALLOWANCE FOR LOAN LOSSES - Carrying Amount of PCI Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019
Accounts Notes And Loans Receivable [Line Items]
Recorded investment	$ 3,955,546	$ 3,915,310
PCI Loans
Accounts Notes And Loans Receivable [Line Items]
Outstanding balance	16,372	16,589
Less: Discount	(2,267)	(2,414)
Less: Allowance	(1,111)	(259)
Recorded investment	$ 12,994	$ 13,916	$ 21,400

LOANS AND ALLOWANCE FOR LOAN LOSSES - Average Impaired Loans and Interest Recognized (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Accounts Notes And Loans Receivable [Line Items]
Average Recorded Investment	$ 44,282	$ 43,172
Interest Income Recognized	385	222
Commercial and industrial
Accounts Notes And Loans Receivable [Line Items]
Average Recorded Investment	12,469	14,352
Interest Income Recognized	102	92
Mortgage warehouse
Accounts Notes And Loans Receivable [Line Items]
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Real estate \| Commercial real estate (including multi-family residential)
Accounts Notes And Loans Receivable [Line Items]
Average Recorded Investment	24,192	22,499
Interest Income Recognized	233	95
Real estate \| Commercial real estate construction and land development
Accounts Notes And Loans Receivable [Line Items]
Average Recorded Investment	5,197	3,786
Interest Income Recognized	47	31
Real estate \| 1-4 family residential (including home equity)
Accounts Notes And Loans Receivable [Line Items]
Average Recorded Investment	1,499	2,495
Interest Income Recognized	3	4
Real estate \| Residential construction
Accounts Notes And Loans Receivable [Line Items]
Average Recorded Investment	864	0
Interest Income Recognized	0	0
Consumer and other
Accounts Notes And Loans Receivable [Line Items]
Average Recorded Investment	61	40
Interest Income Recognized	$ 0	$ 0

OFF-BALANCE SHEET ARRANGEMENTS, COMMITMENTS AND CONTINGENCIES - Narrative (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Commitments to make loans, period	120 days
Off-balance-sheet fixed rate loan commitments, weighted average maturity	3 years 8 months 26 days	3 years 7 months 2 days
Minimum
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance-sheet fixed rate loan commitments, interest rate	1.95%	1.95%
Maximum
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance-sheet fixed rate loan commitments, interest rate	8.40%	8.40%
Weighted Average
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance-sheet fixed rate loan commitments, interest rate	5.27%	5.32%

STOCK BASED COMPENSATION - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)	3,200,000
Share-based compensation expense	$ 804	$ 607
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)	1,800,000
Option, cumulative options granted since inception (in shares)	1,309,231
Expiration period	10 years
Award vesting period	4 years
Unrecognized compensation cost	$ 312
Weighted average period over which unrecognized compensation	9 months 7 days
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	4 years
Unrecognized compensation cost	$ 4,700
Weighted average period over which unrecognized compensation	2 years 8 months 19 days
Equity instruments other than options, grants in period (in shares)	958
Share awards granted (in shares)	1,000
Performance Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	2 years
Weighted average period over which unrecognized compensation	2 years 7 days
Service period	1 year
Share awards granted (in shares)	34,628
Unrecognized compensation expense	$ 784

SECURITIES

3 Months Ended

Mar. 31, 2020

Investments Debt And Equity Securities [Abstract]

SECURITIES

4. SECURITIES

The amortized cost and fair value of investment securities were as follows:

	March 31, 2020
			Gross		Gross
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gains		Losses			Value
	(Dollars in thousands)
Available for Sale
U.S. government and agency securities	$	27,914	$	506	$	(118	)	$	28,302
Municipal securities		252,906		3,634		—			256,540
Agency mortgage-backed pass-through securities		93,965		3,961		—			97,926
Agency collateralized mortgage obligations		102,361		3,036		(1,411	)		103,986
Corporate bonds and other		21,618		78		(200	)		21,496
Total	$	498,764	$	11,215	$	(1,729	)	$	508,250

	December 31, 2019
			Gross		Gross
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gains		Losses			Value
	(Dollars in thousands)
Available for Sale
U.S. government and agency securities	$	29,420	$	298	$	(243	)	$	29,475
Municipal securities		84,200		3,453		(116	)		87,537
Agency mortgage-backed pass-through securities		104,669		1,713		(214	)		106,168
Agency collateralized mortgage obligations		106,351		1,199		(208	)		107,342
Corporate bonds and other		41,691		346		(14	)		42,023
Total	$	366,331	$	7,009	$	(795	)	$	372,545

As of March 31, 2020, the Company’s management did not expect to sell any securities classified as available for sale with material unrealized losses, and the Company believes it is more likely than not it will not be required to sell any of these securities before their anticipated recovery, at which time the Company will receive full value for the securities. The fair value is expected to recover as the securities approach their maturity date or repricing date or if market yields for such investments decline. Management does not believe any of the securities are impaired due to reasons of credit quality. Accordingly, as of March 31, 2020, management believed the unrealized losses in the previous table are temporary and no other than temporary impairment loss has been realized in the Company’s consolidated statements of income.

	Amortized		Fair
	Cost		Value
	(Dollars in thousands)
Due in one year or less	$	15,007	$	14,997
Due after one year through five years		10,520		10,931
Due after five years through ten years		57,109		58,760
Due after ten years		219,802		221,650
Subtotal		302,438		306,338
Agency mortgage-backed pass through and collateralized mortgage obligation securities		196,326		201,912
Total	$	498,764	$	508,250

Securities with unrealized losses segregated by length of time such securities have been in a continuous loss position are as follows:

	March 31, 2020
	Less than 12 Months					More than 12 Months				Total
	Estimated		Unrealized			Estimated		Unrealized		Estimated		Unrealized
	Fair Value		Losses			Fair Value		Losses		Fair Value		Losses
	(Dollars in thousands)
Available for Sale
U.S. government and agency securities	$	20,702	$	(118	)	$	—	$	—	$	20,702	$	(118	)
Agency collateralized mortgage obligations		41,822		(1,411	)		—		—		41,822		(1,411	)
Corporate bonds and other		14,387		(200	)		—		—		14,387		(200	)
Total	$	76,911	$	(1,729	)	$	—	$	—	$	76,911	$	(1,729	)

	December 31, 2019
	Less than 12 Months					More than 12 Months					Total
	Estimated		Unrealized			Estimated		Unrealized			Estimated		Unrealized
	Fair Value		Losses			Fair Value		Losses			Fair Value		Losses
	(Dollars in thousands)
Available for Sale
U.S. government and agency securities	$	22,295	$	(239	)	$	436	$	(4	)	$	22,731	$	(243	)
Agency mortgage-backed pass-through securities		20,792		(155	)		4,369		(59	)		25,161		(214	)
Agency collateralized mortgage obligations		22,340		(208	)		—		—			22,340		(208	)
Municipal securities		9,514		(116	)		—		—			9,514		(116	)
Corporate bonds and other		5,492		(14	)		—		—			5,492		(14	)
Total	$	80,433	$	(732	)	$	4,805	$	(63	)	$	85,238	$	(795	)

DEPOSITS

3 Months Ended

Mar. 31, 2020

Deposit Liabilities [Abstract]

DEPOSITS

8. DEPOSITS

Scheduled maturities of time deposits for the next five years are as follows (dollars in thousands):

Within one year	$	835,797
After one but within two years		210,645
After two but within three years		136,183
After three but within four years		49,551
After four but within five years		51,711
Total	$	1,283,887

ACQUISITIONS - Narrative (Details) $ / shares in Units, $ in Thousands			3 Months Ended	9 Months Ended	12 Months Ended
	Feb. 01, 2019 USD ($)	Oct. 01, 2018 USD ($) branch $ / shares shares	Mar. 31, 2020 $ / shares	Sep. 30, 2019 USD ($) shares	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 28, 2018 USD ($) $ / shares
Business Acquisition [Line Items]
Options exercised \| $ / shares			$ 15.20
Post Oak Bancshares, Inc.
Business Acquisition [Line Items]
Effective date of acquisition		Oct. 01, 2018
Number of branches \| branch		13
Number of shares issued in acquisition \| shares		8,402,010		8,402,010
Cash paid for acquisition		$ 21
Number of shares per common share or option to purchase common shares		0.7017
Option issued in acquisition to purchase common shares \| shares		299,352		299,352
Options exercised \| $ / shares		$ 12.83
Business acquisition, share price \| $ / shares							$ 41.70
Business acquisition, equity transaction value							$ 359,000
Goodwill, acquired during period		$ 183,700
Pre-tax acquisition and merger-related expenses					$ 1,300	$ 1,700
Business acquisition, loans				$ 1,164,281
Post Oak Bancshares, Inc. \| Minimum
Business Acquisition [Line Items]
Intangibles, useful life		10 years
Post Oak Bancshares, Inc. \| Houston, Texas
Business Acquisition [Line Items]
Number of branches \| branch		12
Post Oak Bancshares, Inc. \| Beaumont, TX
Business Acquisition [Line Items]
Number of branches \| branch		1
Lowery Bank
Business Acquisition [Line Items]
Effective date of acquisition	Feb. 01, 2019
Goodwill, acquired during period	$ 578				$ 578
Business acquisition, customer deposits balances	16,000
Business acquisition, loans	45,000
Lowery Bank \| Minimum
Business Acquisition [Line Items]
Cash paid for acquisition	$ 32,900

OFF-BALANCE SHEET ARRANGEMENTS, COMMITMENTS AND CONTINGENCIES (Tables)

3 Months Ended

Mar. 31, 2020

Commitments And Contingencies Disclosure [Abstract]

Schedule of Fair Value, Off-balance Sheet Risks

The contractual amounts of financial instruments with off-balance sheet risk are as follows:

	March 31, 2020				December 31, 2019
	Fixed		Variable		Fixed		Variable
	Rate		Rate		Rate		Rate
	(Dollars in thousands)
Commitments to extend credit	$	549,277	$	509,079	$	507,411	$	531,470
Standby letters of credit		11,945		4,955		10,843		4,309
Total	$	561,222	$	514,034	$	518,254	$	535,779

FAIR VALUE (Tables)

3 Months Ended

Mar. 31, 2020

Fair Value Disclosures [Abstract]

Fair Value, by Balance Sheet Grouping

The carrying amounts and estimated fair values of financial instruments that are reported on the balance sheet are as follows:

	As of March 31, 2020
	Carrying		Estimated Fair Value
	Amount		Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Financial assets
Cash and cash equivalents	$	174,889	$	174,889	$	—	$	—	$	174,889
Available for sale securities		508,250		—		508,250		—		508,250
Loans held for investment, net of allowance		3,918,035		—		—		3,785,598		3,785,598
Accrued interest receivable		17,203		6		3,055		14,142		17,203
Financial liabilities
Deposits	$	3,953,574	$	—	$	3,971,035	$	—	$	3,971,035
Accrued interest payable		3,821		—		3,821		—		3,821
Borrowed funds		190,506		—		200,706		—		200,706
Subordinated debt		107,930		—		101,588		—		101,588

	As of December 31, 2019
	Carrying		Estimated Fair Value
	Amount		Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Financial assets
Cash and cash equivalents	$	346,248	$	346,248	$	—	$	—	$	346,248
Available for sale securities		372,545		—		372,545		—		372,545
Loans held for investment, net of allowance		3,885,872		—		—		3,918,210		3,918,210
Accrued interest receivable		15,468		13		1,783		13,672		15,468
Financial liabilities
Deposits	$	4,068,101	$	—	$	4,073,031	$	—	$	4,073,031
Accrued interest payable		4,326		—		4,326		—		4,326
Borrowed funds		75,503		—		83,302		—		83,302
Subordinated debt		107,799		—		109,607		—		109,607

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following tables present fair values for assets measured at fair value on a recurring basis:

	March 31, 2020
	Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Available for sale securities:
U.S. government and agency securities	$	—	$	28,302	$	—	$	28,302
Municipal securities		—		256,540		—		256,540
Agency mortgage-backed pass-through securities		—		97,926		—		97,926
Agency collateralized mortgage obligations		—		103,986		—		103,986
Corporate bonds and other		—		21,496		—		21,496
Total	$	—	$	508,250	$	—	$	508,250

	December 31, 2019
	Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Available for sale securities:
U.S. government and agency securities	$	—	$	29,475	$	—	$	29,475
Municipal securities		—		87,537		—		87,537
Agency mortgage-backed pass-through securities		—		106,168		—		106,168
Agency collateralized mortgage obligations		—		107,342		—		107,342
Corporate bonds and other		—		42,023		—		42,023
Total	$	—	$	372,545	$	—	$	372,545

Fair Value Measurements, Nonrecurring

	As of March 31, 2020
	Level 1		Level 2		Level 3
	(Dollars in thousands)
Impaired loans:
Commercial and industrial	$	—	$	—	$	4,135
Commercial real estate (including multi- family residential)		—		—		3,178
Commercial real estate construction and land development		—		—		3,161
1-4 family residential (including home equity)		—		—		91
Residential construction		—		—		838
Consumer and other		—		—		18
Other real estate owned		—		—		12,617
	$	—	$	—	$	24,038

	As of December 31, 2019
	Level 1		Level 2		Level 3
	(Dollars in thousands)
Impaired loans:
Commercial and industrial	$	—	$	—	$	4,332
Commercial real estate (including multi- family residential)		—		—		4,876
Commercial real estate construction and land development		—		—		10,057
Residential construction		—		—		471
PCI		—		—		1,380
Other real estate owned		—		—		8,337
	$	—	$	—	$	29,453

LOANS AND ALLOWANCE FOR LOAN LOSSES - Loan Portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	$ 3,955,546	$ 3,915,310
Allowance for loan losses	(37,511)	(29,438)	$ (27,123)	$ (26,331)
Loans, net	3,918,035	3,885,872
Commercial and industrial
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	702,267	689,360
Allowance for loan losses	(10,164)	(8,818)	(8,999)	(8,351)
Mortgage warehouse
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	1,051	8,304
Allowance for loan losses	0	0	0	0
Real estate \| Commercial real estate (including multi-family residential)
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	1,951,080	1,873,782
Real estate \| Commercial real estate construction and land development
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	378,987	410,471
Real estate \| 1-4 family residential (including home equity)
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	704,212	698,957
Real estate \| Residential construction
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	177,025	192,515
Consumer and other
Accounts Notes And Loans Receivable [Line Items]
Loans held for investment	40,924	41,921
Allowance for loan losses	$ (118)	$ (120)	$ (77)	$ (73)

LOANS AND ALLOWANCE FOR LOAN LOSSES - Impaired Loans by Loan Class (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
With no related allowance recorded:
Recorded investment with no related allowance recorded	$ 29,421	$ 27,445
Unpaid principal balance with no related allowance recorded	29,566	27,940
With an allowance recorded:
Impaired financing receivable, with related allowance, recorded investment	14,729	27,891
Impaired financing receivable, with related allowance, unpaid principal balance	15,424	28,285
Related Allowance	3,308	6,775
Total:
Recorded Investment	44,150	55,336
Unpaid Principal Balance	44,990	56,225
Related Allowance	3,308	6,775
PCI Loans
With an allowance recorded:
Impaired financing receivable, with related allowance, recorded investment		2,039
Impaired financing receivable, with related allowance, unpaid principal balance		2,959
Related Allowance		659
Total:
Recorded Investment		2,039
Unpaid Principal Balance		2,959
Related Allowance		659
Commercial and industrial
With no related allowance recorded:
Recorded investment with no related allowance recorded	5,368	5,721
Unpaid principal balance with no related allowance recorded	5,433	6,136
With an allowance recorded:
Impaired financing receivable, with related allowance, recorded investment	6,827	7,812
Impaired financing receivable, with related allowance, unpaid principal balance	7,522	7,286
Related Allowance	2,692	3,480
Total:
Recorded Investment	12,195	13,533
Unpaid Principal Balance	12,955	13,422
Related Allowance	2,692	3,480
Mortgage warehouse
With no related allowance recorded:
Recorded investment with no related allowance recorded	0	0
Unpaid principal balance with no related allowance recorded	0	0
With an allowance recorded:
Impaired financing receivable, with related allowance, recorded investment	0	0
Impaired financing receivable, with related allowance, unpaid principal balance	0	0
Related Allowance	0	0
Total:
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Related Allowance	0	0
Real estate \| Commercial real estate (including multi-family residential)
With no related allowance recorded:
Recorded investment with no related allowance recorded	20,673	19,478
Unpaid principal balance with no related allowance recorded	20,753	19,558
With an allowance recorded:
Impaired financing receivable, with related allowance, recorded investment	3,416	5,335
Impaired financing receivable, with related allowance, unpaid principal balance	3,416	5,335
Related Allowance	238	459
Total:
Recorded Investment	24,089	24,813
Unpaid Principal Balance	24,169	24,893
Related Allowance	238	459
Real estate \| Commercial real estate construction and land development
With no related allowance recorded:
Recorded investment with no related allowance recorded	1,958	0
Unpaid principal balance with no related allowance recorded	1,958	0
With an allowance recorded:
Impaired financing receivable, with related allowance, recorded investment	3,386	12,142
Impaired financing receivable, with related allowance, unpaid principal balance	3,386	12,142
Related Allowance	225	2,085
Total:
Recorded Investment	5,344	12,142
Unpaid Principal Balance	5,344	12,142
Related Allowance	225	2,085
Real estate \| 1-4 family residential (including home equity)
With no related allowance recorded:
Recorded investment with no related allowance recorded	1,389	2,000
Unpaid principal balance with no related allowance recorded	1,389	2,000
With an allowance recorded:
Impaired financing receivable, with related allowance, recorded investment	93	0
Impaired financing receivable, with related allowance, unpaid principal balance	93	0
Related Allowance	2	0
Total:
Recorded Investment	1,482	2,000
Unpaid Principal Balance	1,482	2,000
Related Allowance	2	0
Real estate \| Residential construction
With no related allowance recorded:
Recorded investment with no related allowance recorded	0	208
Unpaid principal balance with no related allowance recorded	0	208
With an allowance recorded:
Impaired financing receivable, with related allowance, recorded investment	982	537
Impaired financing receivable, with related allowance, unpaid principal balance	982	537
Related Allowance	144	66
Total:
Recorded Investment	982	745
Unpaid Principal Balance	982	745
Related Allowance	144	66
Consumer and other
With no related allowance recorded:
Recorded investment with no related allowance recorded	33	38
Unpaid principal balance with no related allowance recorded	33	38
With an allowance recorded:
Impaired financing receivable, with related allowance, recorded investment	25	26
Impaired financing receivable, with related allowance, unpaid principal balance	25	26
Related Allowance	7	26
Total:
Recorded Investment	58	64
Unpaid Principal Balance	58	64
Related Allowance	$ 7	$ 26

LOANS AND ALLOWANCE FOR LOAN LOSSES - Loans Modified in a Troubled Debt Restructuring (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($) contract	Mar. 31, 2019 USD ($) contract
Accounts Notes And Loans Receivable [Line Items]
Number of Contracts \| contract	7	8
Pre-Modification of Outstanding Recorded Investment	$ 1,252	$ 946
Post Modification of Outstanding Recorded Investment	$ 1,252	$ 946
Commercial and industrial
Accounts Notes And Loans Receivable [Line Items]
Number of Contracts \| contract	5	6
Pre-Modification of Outstanding Recorded Investment	$ 1,104	$ 511
Post Modification of Outstanding Recorded Investment	$ 1,104	$ 511
Mortgage warehouse
Accounts Notes And Loans Receivable [Line Items]
Number of Contracts \| contract	0	0
Pre-Modification of Outstanding Recorded Investment	$ 0	$ 0
Post Modification of Outstanding Recorded Investment	$ 0	$ 0
Real estate \| Commercial real estate (including multi-family residential)
Accounts Notes And Loans Receivable [Line Items]
Number of Contracts \| contract	0	0
Pre-Modification of Outstanding Recorded Investment	$ 0	$ 0
Post Modification of Outstanding Recorded Investment	$ 0	$ 0
Real estate \| Commercial real estate construction and land development
Accounts Notes And Loans Receivable [Line Items]
Number of Contracts \| contract	0	0
Pre-Modification of Outstanding Recorded Investment	$ 0	$ 0
Post Modification of Outstanding Recorded Investment	$ 0	$ 0
Real estate \| 1-4 family residential (including home equity)
Accounts Notes And Loans Receivable [Line Items]
Number of Contracts \| contract	1	1
Pre-Modification of Outstanding Recorded Investment	$ 118	$ 397
Post Modification of Outstanding Recorded Investment	$ 118	$ 397
Real estate \| Residential construction
Accounts Notes And Loans Receivable [Line Items]
Number of Contracts \| contract	0	0
Pre-Modification of Outstanding Recorded Investment	$ 0	$ 0
Post Modification of Outstanding Recorded Investment	$ 0	$ 0
Consumer and other
Accounts Notes And Loans Receivable [Line Items]
Number of Contracts \| contract	1	1
Pre-Modification of Outstanding Recorded Investment	$ 30	$ 38
Post Modification of Outstanding Recorded Investment	$ 30	$ 38

REGULATORY CAPITAL MATTERS - Narrative (Details)	Mar. 31, 2020	Dec. 31, 2018	Dec. 31, 2016
Banking And Thrift [Abstract]
Capital conservation buffer		2.50%
Capital conservation buffer, phase in amount			0.625%
Capital conservation buffer, increase per year	0.625%

STOCK BASED COMPENSATION - Stock Option Plans Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Number of Options
Options outstanding, beginning balance (in shares)	616
Options exercised (in shares)	(78)
Options outstanding, ending balance (in shares)	538	616
Number of options vested and exercisable (in shares)	502
Weighted Average Exercise Price
Options outstanding, beginning balance (in dollars per share)	$ 19.90
Options exercised (in dollars per share)	15.20
Options outstanding, ending balance (in dollars per share)	20.60	$ 19.90
Weighted Average Exercise Price, Options vested and exercisable (in dollars per share)	$ 19.71
Weighted Average Remaining Contractual Term, Options outstanding	3 years 11 months 15 days	4 years
Weighted Average Remaining Contractual Term, Options vested and exercisable	3 years 9 months
Aggregate Intrinsic Value, Options outstanding	$ 1,892	$ 10,904
Aggregate Intrinsic Value, Options vested and exercisable	$ 2,207

SECURITIES - Narrative (Details) - USD ($)	3 Months Ended
SECURITIES - Narrative (Details) - USD ($)	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Investments Debt And Equity Securities [Abstract]
Gross realized gains	$ 298,000
Gross realized losses	104,000
Net realized gain (loss)	194,000
Proceeds from sales of available for sale securities	29,700,000	$ 0
Security owned and pledged as collateral	$ 25,100,000		$ 24,300,000

GOODWILL AND CORE DEPOSIT INTANGIBLE ASSETS - Estimated Aggregate Future Amortization Expense for Core Deposit Intangibles (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Remaining 2020	$ 2,941
2021	3,296
2022	3,003
2023	2,323
2024	2,188
Thereafter	7,135
Total	$ 20,886	$ 21,876

ACQUISITIONS - Allocation of the Purchase Price to Assets and Liabilities - Narrative (Details) - Post Oak Bancshares, Inc. - shares		9 Months Ended
	Oct. 01, 2018	Sep. 30, 2019
Business Acquisition [Line Items]
Number of shares issued in acquisition	8,402,010	8,402,010
Option issued in acquisition to purchase common shares	299,352	299,352

FAIR VALUE - Carrying Amounts and Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	$ 508,250	$ 372,545
Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	174,889	346,248
Available for sale securities	508,250	372,545
Loans held for investment, net of allowance	3,918,035	3,885,872
Accrued interest receivable	17,203	15,468
Deposits	3,953,574	4,068,101
Accrued interest payable	3,821	4,326
Borrowed funds	190,506	75,503
Subordinated debt	107,930	107,799
Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	174,889	346,248
Available for sale securities	508,250	372,545
Loans held for investment, net of allowance	3,785,598	3,918,210
Accrued interest receivable	17,203	15,468
Deposits	3,971,035	4,073,031
Accrued interest payable	3,821	4,326
Borrowed funds	200,706	83,302
Subordinated debt	101,588	109,607
Estimated Fair Value \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	174,889	346,248
Available for sale securities	0	0
Loans held for investment, net of allowance	0	0
Accrued interest receivable	6	13
Deposits	0	0
Accrued interest payable	0	0
Borrowed funds	0	0
Subordinated debt	0	0
Estimated Fair Value \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Available for sale securities	508,250	372,545
Loans held for investment, net of allowance	0	0
Accrued interest receivable	3,055	1,783
Deposits	3,971,035	4,073,031
Accrued interest payable	3,821	4,326
Borrowed funds	200,706	83,302
Subordinated debt	101,588	109,607
Estimated Fair Value \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Available for sale securities	0	0
Loans held for investment, net of allowance	3,785,598	3,918,210
Accrued interest receivable	14,142	13,672
Deposits	0	0
Accrued interest payable	0	0
Borrowed funds	0	0
Subordinated debt	$ 0	$ 0

DEPOSITS - Narrative (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Deposit Liabilities [Abstract]
Time deposits, at or above FDIC insurance limit	$ 250
Time deposits 250,000 or more	528,300	$ 485,800
Brokered deposits	$ 410,400	$ 263,500

NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING AND REPORTING POLICIES

3 Months Ended

Mar. 31, 2020

Accounting Policies [Abstract]

NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING AND REPORTING POLICIES

1. NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING AND REPORTING POLICIES

Risks and Uncertainties

Significant Accounting and Reporting Policies

New Accounting Standards

Adoption of New Accounting Standards

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 does not significantly change lease accounting requirements applicable to lessors; however, certain changes were made to align, where necessary, lessor accounting with the lessee accounting model and ASC Topic 606, “Revenue from Contracts with Customers.” ASU 2016-02 became effective for the Company on January 1, 2019. The Company adopted the standard through the required modified retrospective approach by applying the allowed transition method whereby comparative periods were not restated and a cumulative effect adjustment to the opening balance of retained earnings was recognized as of January 1, 2019. Topic 842 requires the recognition of a lease liability measured as the present value of unpaid lease payments for operating leases where the Company is the lessee, and a corresponding right-of-use (ROU) asset for the right to use the leased properties. The Company elected not to reassess whether contracts are or contain leases, lease classification or initial direct costs for existing leases, a set of practical expedients for transition provided by ASU 2016-12. Further, the Company elected the practical expedient to use hindsight in determining the lease term and assessing impairment. The election of the hindsight practical expedient resulted in longer lease terms for a limited number of strategic locations based on relevant factors as of the adoption date. The Company implemented a lease management system to assist in centralizing, maintaining and accounting for all leases to ensure the Company meets the ASU’s reporting and disclosure requirements. Prior comparable periods are presented in accordance with previous guidance under Accounting Standards Codification (ASC) 840, “Leases.” See Note 6 – Leases for further information regarding the Company’s leases on certain properties and equipment under operating leases.

Newly Issued But Not Yet Effective Accounting Standards

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 3,516	$ 12,678
Unrealized gain on securities:
Change in unrealized holding gain on available for sale securities during the period	3,466	7,462
Reclassification of gain realized through the sale of securities	(194)
Total other comprehensive income	3,272	7,462
Deferred tax expense related to other comprehensive income	(686)	(1,559)
Other comprehensive income, net of tax	2,586	5,903
Comprehensive income	$ 6,102	$ 18,581

Document And Entity Information - shares	3 Months Ended
Document And Entity Information - shares	Mar. 31, 2020	Apr. 29, 2020
Cover [Abstract]
Entity Registrant Name	Allegiance Bancshares, Inc.
Entity Central Index Key	0001642081
Trading Symbol	ABTX
Security Exchange Name	NASDAQ
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	true
Title of 12(b) Security	Common Stock, par value, $1.00 per share
Document Type	10-Q
Document Period End Date	Mar. 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity File Number	001-37585
Entity Incorporation, State or Country Code	TX
Entity Tax Identification Number	26-3564100
Entity Address, Address Line One	8847 West Sam Houston Parkway, N.
Entity Address, Address Line Two	Suite 200
Entity Address, City or Town	Houston
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77040
City Area Code	281
Local Phone Number	894-3200
Entity Common Stock, Shares Outstanding (in shares)		20,402,965
Document Quarterly Report	true
Document Transition Report	false

STOCK BASED COMPENSATION

3 Months Ended

Mar. 31, 2020

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

STOCK BASED COMPENSATION

12. STOCK BASED COMPENSATION

Stock Options

A summary of the activity in the stock option plans during the three months ended March 31, 2020 is set forth below:

				Weighted		Weighted
				Average		Average		Aggregate
	Number of			Exercise		Remaining		Intrinsic
	Options			Price		Contractual Term		Value
	(In thousands)					(In years)		(In thousands)
Options outstanding, January 1, 2020		616		$	19.90		4.00	$	10,904
Options granted		—			—
Options exercised		(78	)		15.20
Options forfeited		—			—
Options outstanding, March 31, 2020		538		$	20.60		3.96	$	1,892
Options vested and exercisable, March 31, 2020		502		$	19.71		3.75	$	2,207

Restricted Stock Awards

A summary of the activity of the nonvested shares of restricted stock as of March 31, 2020 is as follows:

				Weighted
				Average Grant
	Number of			Date Fair
	Shares			Value
	(Shares in thousands)
Nonvested share awards outstanding, January 1, 2020		167		$	36.23
Share awards granted		1			37.20
Share awards vested		(7	)		24.14
Unvested share awards forfeited or cancelled		(2	)		39.00
Nonvested share awards outstanding, March 31, 2020		159		$	36.67

Performance Share Units (“PSUs”)

SUBSEQUENT EVENTS	3 Months Ended
SUBSEQUENT EVENTS	Mar. 31, 2020
Subsequent Events [Abstract]
SUBSEQUENT EVENTS

SECURITIES (Tables)

3 Months Ended

Mar. 31, 2020

Investments Debt And Equity Securities [Abstract]

Available-for-sale Securities

The amortized cost and fair value of investment securities were as follows:

	March 31, 2020
			Gross		Gross
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gains		Losses			Value
	(Dollars in thousands)
Available for Sale
U.S. government and agency securities	$	27,914	$	506	$	(118	)	$	28,302
Municipal securities		252,906		3,634		—			256,540
Agency mortgage-backed pass-through securities		93,965		3,961		—			97,926
Agency collateralized mortgage obligations		102,361		3,036		(1,411	)		103,986
Corporate bonds and other		21,618		78		(200	)		21,496
Total	$	498,764	$	11,215	$	(1,729	)	$	508,250

	December 31, 2019
			Gross		Gross
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gains		Losses			Value
	(Dollars in thousands)
Available for Sale
U.S. government and agency securities	$	29,420	$	298	$	(243	)	$	29,475
Municipal securities		84,200		3,453		(116	)		87,537
Agency mortgage-backed pass-through securities		104,669		1,713		(214	)		106,168
Agency collateralized mortgage obligations		106,351		1,199		(208	)		107,342
Corporate bonds and other		41,691		346		(14	)		42,023
Total	$	366,331	$	7,009	$	(795	)	$	372,545

Investments Classified by Contractual Maturity Date

	Amortized		Fair
	Cost		Value
	(Dollars in thousands)
Due in one year or less	$	15,007	$	14,997
Due after one year through five years		10,520		10,931
Due after five years through ten years		57,109		58,760
Due after ten years		219,802		221,650
Subtotal		302,438		306,338
Agency mortgage-backed pass through and collateralized mortgage obligation securities		196,326		201,912
Total	$	498,764	$	508,250

Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value

Securities with unrealized losses segregated by length of time such securities have been in a continuous loss position are as follows:

	March 31, 2020
	Less than 12 Months					More than 12 Months				Total
	Estimated		Unrealized			Estimated		Unrealized		Estimated		Unrealized
	Fair Value		Losses			Fair Value		Losses		Fair Value		Losses
	(Dollars in thousands)
Available for Sale
U.S. government and agency securities	$	20,702	$	(118	)	$	—	$	—	$	20,702	$	(118	)
Agency collateralized mortgage obligations		41,822		(1,411	)		—		—		41,822		(1,411	)
Corporate bonds and other		14,387		(200	)		—		—		14,387		(200	)
Total	$	76,911	$	(1,729	)	$	—	$	—	$	76,911	$	(1,729	)

	December 31, 2019
	Less than 12 Months					More than 12 Months					Total
	Estimated		Unrealized			Estimated		Unrealized			Estimated		Unrealized
	Fair Value		Losses			Fair Value		Losses			Fair Value		Losses
	(Dollars in thousands)
Available for Sale
U.S. government and agency securities	$	22,295	$	(239	)	$	436	$	(4	)	$	22,731	$	(243	)
Agency mortgage-backed pass-through securities		20,792		(155	)		4,369		(59	)		25,161		(214	)
Agency collateralized mortgage obligations		22,340		(208	)		—		—			22,340		(208	)
Municipal securities		9,514		(116	)		—		—			9,514		(116	)
Corporate bonds and other		5,492		(14	)		—		—			5,492		(14	)
Total	$	80,433	$	(732	)	$	4,805	$	(63	)	$	85,238	$	(795	)