Investar Holding (ISTR) 10-Q 9 May 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2019	May 07, 2019
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Trading Symbol	ISTR
Entity Registrant Name	Investar Holding Corp
Entity Central Index Key	0001602658
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		10,031,690

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
ASSETS
Cash and due from banks	$ 22,535	$ 15,922
Interest-bearing balances due from other banks	47,506	1,212
Federal funds sold	2,362	6
Cash and cash equivalents	72,403	17,140
Available for sale securities at fair value (amortized cost of $265,981 and $253,504, respectively)	264,257	248,981
Held to maturity securities at amortized cost (estimated fair value of $15,727 and $15,805, respectively)	15,816	16,066
Loans, net of allowance for loan losses of $9,642 and $9,454, respectively	1,485,277	1,391,371
Equity securities	14,392	13,562
Bank premises and equipment, net of accumulated depreciation of $10,513 and $9,898, respectively	45,717	40,229
Other real estate owned, net	1,748	3,611
Accrued interest receivable	6,377	5,553
Deferred tax asset	38	1,145
Goodwill and other intangible assets, net	27,143	19,787
Bank owned life insurance	24,011	23,859
Other assets	4,715	5,165
Total assets	1,961,894	1,786,469
Deposits:
Noninterest-bearing	285,811	217,457
Interest-bearing	1,246,982	1,144,274
Total deposits	1,532,793	1,361,731
Advances from Federal Home Loan Bank	185,093	206,490
Repurchase agreements	2,218	1,999
Subordinated debt, net of unamortized issuance costs	18,227	18,215
Junior subordinated debt	5,858	5,845
Accrued taxes and other liabilities	14,691	9,927
Total liabilities	1,758,880	1,604,207
STOCKHOLDERS’ EQUITY
Preferred stock, no par value per share; 5,000,000 shares authorized	0	0
Common stock, $1.00 par value per share; 40,000,000 shares authorized; 10,129,993 and 9,484,219 shares issued and outstanding, respectively	10,130	9,484
Surplus	144,813	130,133
Retained earnings	49,104	45,721
Accumulated other comprehensive loss	(1,033)	(3,076)
Total stockholders’ equity	203,014	182,262
Total liabilities and stockholders’ equity	$ 1,961,894	$ 1,786,469

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Available-for-sale securities at fair value, amortized cost	$ 265,981	$ 253,504
Held-to-maturity securities at amortized cost, estimated fair value	15,727	15,805
Allowance for loan losses	9,642	9,454
Bank premises and equipment, accumulated depreciation	$ 10,513	$ 9,898
Preferred stock, par value (in dollars per share)	$ 0	$ 0
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	40,000,000	40,000,000
Common stock, shares issued (in shares)	10,129,993	9,484,219
Common stock, shares outstanding (in shares)	10,129,993	9,484,219

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
INTEREST INCOME
Interest and fees on loans	$ 18,544	$ 15,626
Interest on investment securities	1,926	1,459
Other interest income	216	93
Total interest income	20,686	17,178
INTEREST EXPENSE
Interest on deposits	4,106	2,253
Interest on borrowings	1,424	1,067
Total interest expense	5,530	3,320
Net interest income	15,156	13,858
Provision for loan losses	265	625
Net interest income after provision for loan losses	14,891	13,233
NONINTEREST INCOME
Service charges on deposit accounts	400	359
Gain on sale of investment securities, net	2	0
Gain on sale of fixed assets, net	0	90
Gain on sale of other real estate owned, net	5	0
Servicing fees and fee income on serviced loans	180	288
Interchange fees	240	191
Income from bank owned life insurance	152	151
Change in the fair value of equity securities	172	0
Other operating income (loss)	130	(7)
Total noninterest income	1,281	1,072
Income before noninterest expense	16,172	14,305
NONINTEREST EXPENSE
Depreciation and amortization	764	598
Salaries and employee benefits	6,415	6,048
Occupancy	414	380
Data processing	536	542
Marketing	51	38
Professional fees	305	255
Acquisition expense	905	1,104
Other operating expenses	1,913	1,597
Total noninterest expense	11,303	10,562
Income before income tax expense	4,869	3,743
Income tax expense	952	1,341
Net income	$ 3,917	$ 2,402
EARNINGS PER SHARE
Basic earnings per share (in dollars per share)	$ 0.40	$ 0.25
Diluted earnings per share (in dollars per share)	0.40	0.25
Cash dividends declared per common share (in dollars per share)	$ 0.05	$ 0.04

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 3,917	$ 2,402
Unrealized gain (loss) on investment securities:
Unrealized gain (loss), available for sale, net of tax expense (benefit) of $588 and ($475), respectively	2,212	(1,789)
Reclassification of realized gain, net of tax expense of $0 for all respective periods	(2)	0
Fair value of derivative financial instruments:
Change in fair value of interest rate swap designated as a cash flow hedge, net of tax (benefit) expense of ($44) and $70, respectively	(167)
Change in fair value of interest rate swap designated as a cash flow hedge, net of tax (benefit) expense of ($44) and $70, respectively		265
Total other comprehensive income (loss)	2,043	(1,524)
Total comprehensive income	$ 5,960	$ 878

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Unrealized gain (loss), available for sale, tax expense (benefit)	$ 588	$ (475)
Reclassification of realized gains, tax expense	0	0
Change in fair value of interest rate swap designated as a cash flow hedge, net of tax expense (benefit)		$ 70
Change in fair value of interest rate swap designated as a cash flow hedge, net of tax expense (benefit)	$ (44)

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)		Total	Common Stock	Surplus	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2017		$ 172,729,000	$ 9,515,000	$ 131,582,000	$ 33,203,000	$ (1,571,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Surrendered shares		(139,000)	(7,000)	(132,000)
Shares repurchased		(674,000)	(28,000)	(646,000)
Options and warrants exercised		172,000	13,000	159,000
Dividends declared		(328,000)			(328,000)
Stock-based compensation and other activity		240,000	24,000	216,000
Reclassification of tax effects of the Tax Cuts and Jobs Act	[1]	557,000			557,000
Net income		2,402,000			2,402,000
Other comprehensive income (loss), net		(1,524,000)				(1,524,000)
Ending Balance at Mar. 31, 2018		173,430,000	9,517,000	131,179,000	35,829,000	(3,095,000)
Beginning Balance at Dec. 31, 2017		172,729,000	9,515,000	131,582,000	33,203,000	(1,571,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reclassification of tax effects of the Tax Cuts and Jobs Act		0
Ending Balance at Dec. 31, 2018		182,262,000	9,484,000	130,133,000	45,721,000	(3,076,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued in acquisition		18,637,000	764,000	17,873,000
Surrendered shares		(232,000)	(9,000)	(223,000)
Shares repurchased		(3,368,000)	(144,000)	(3,224,000)
Dividends declared		(534,000)			(534,000)
Stock-based compensation and other activity		289,000	35,000	254,000
Net income		3,917,000			3,917,000
Other comprehensive income (loss), net		2,043,000				2,043,000
Ending Balance at Mar. 31, 2019		$ 203,014,000	$ 10,130,000	$ 144,813,000	$ 49,104,000	$ (1,033,000)
[1]	The Tax Cuts and Jobs Act, enacted on December 22, 2017, required the revaluation of the Company’s deferred tax assets and liabilities as of December 31, 2017 as a result of the lower corporate tax rates to be realized beginning January 1, 2018. The $0.6 million adjustment to retained earnings for the period ended March 31, 2018 represents a reclassification of the tax effects of the Tax Cuts and Jobs Act.

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - USD ($)	3 Months Ended			12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018		Dec. 31, 2018
Statement of Stockholders' Equity [Abstract]
Reclassification of tax effects of the Tax Cuts and Jobs Act		$ 557,000	[1]	$ 0
Cash dividends declared per common share (in dollars per share)	$ 0.05	$ 0.04
[1]	The Tax Cuts and Jobs Act, enacted on December 22, 2017, required the revaluation of the Company’s deferred tax assets and liabilities as of December 31, 2017 as a result of the lower corporate tax rates to be realized beginning January 1, 2018. The $0.6 million adjustment to retained earnings for the period ended March 31, 2018 represents a reclassification of the tax effects of the Tax Cuts and Jobs Act.

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net income
Net income	$ 3,917	$ 2,402
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	764	598
Provision for loan losses	265	625
Amortization of purchase accounting adjustments	(393)	(714)
Net amortization of securities	(28)	196
Gain on sale of investment securities, net	(2)	0
Gain on sale of fixed assets, net	0	(90)
Gain on sale of other real estate owned, net	(5)	0
FHLB stock dividend	(85)	(45)
Stock-based compensation	289	240
Deferred taxes	289	922
Net change in value of bank owned life insurance	(152)	(151)
Amortization of subordinated debt issuance costs	12	12
Change in the fair value of equity securities	(172)	17
Net change in:
Accrued interest receivable	(578)	(20)
Other assets	281	441
Accrued taxes and other liabilities	1,464	(414)
Net cash provided by operating activities	5,866	4,019
Cash flows from investing activities:
Proceeds from sales of investment securities available for sale	393	0
Purchases of securities available for sale	(22,331)	(22,739)
Proceeds from maturities, prepayments and calls of investment securities available for sale	9,499	5,560
Proceeds from maturities, prepayments and calls of investment securities held to maturity	240	259
Purchase of equity securities	0	(905)
Net increase in loans	(11,345)	(14,413)
Proceeds from sales of other real estate owned	3,275	0
Purchases of other real estate owned	0	(225)
Purchases of fixed assets	(2,425)	(1,089)
Distributions from investments	8	6
Cash acquired from acquisition of Mainland Bank	38,365	0
Net cash provided by (used in) investing activities	15,679	(33,546)
Cash flows from financing activities:
Net increase in customer deposits	63,432	1,495
Net decrease in repurchase agreements	(4,465)	(882)
Net decrease in short-term FHLB advances	(21,400)	(8,500)
Proceeds from long-term FHLB advances	0	45,000
Repayment of long-term FHLB advances	0	(16,100)
Cash dividends paid on common stock	(481)	(303)
Proceeds from stock options and warrants exercised	0	172
Payments to repurchase common stock	(3,368)	(674)
Net cash provided by financing activities	33,718	20,208
Net change in cash and cash equivalents	55,263	(9,319)
Cash and cash equivalents, beginning of period	17,140	30,421
Cash and cash equivalents, end of period	$ 72,403	$ 21,102

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation The accompanying unaudited consolidated financial statements of Investar Holding Corporation (the “Company”) have been prepared in accordance with United States generally accepted accounting principles (“GAAP”) for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include information or footnotes necessary for a complete presentation of financial position, results of operations, and cash flows in conformity with GAAP. However, in the opinion of management, all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the financial statements have been included. The results of operations for the three month period ended March 31, 2019 is not necessarily indicative of the results that may be expected for the entire fiscal year. These statements should be read in conjunction with the Company’s audited consolidated financial statements for the year ended December 31, 2018 , including the notes thereto, which were included as part of the Company’s Annual Report on Form 10-K filed with the Securities and Exchange Commission (“SEC”) on March 15, 2019. Nature of Operations Investar Holding Corporation, headquartered in Baton Rouge, Louisiana, provides full banking services, excluding trust services, through its wholly-owned banking subsidiary, Investar Bank (the “Bank”), a Louisiana-chartered bank. The Company’s primary markets are southeast Louisiana and southeast Texas. At March 31, 2019 , the Company operated 21 full service branches located in Louisiana and 3 full service branches located in Texas, and had 280 employees. Principles of Consolidation The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiary, the Bank. All significant intercompany accounts and transactions have been eliminated in consolidation. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements as well as the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates, and such differences could be material. Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for loan losses. While management uses available information to recognize losses on loans, future additions to the allowance may be necessary based on changes in local economic conditions. In addition, regulatory agencies, as an integral part of their examination process, periodically review the Company’s allowance for loan losses. Such agencies may require the Company to recognize additions to the allowance based on their judgments about information available to them at the time of their examination. Because of these factors, it is reasonably possible that the allowance for loan losses may change materially in the near term. However, the amount of the change that is reasonably possible cannot be estimated. Other estimates that are susceptible to significant change in the near term relate to the determination of other-than-temporary impairments of securities and the fair value of financial instruments. Investment Securities The Company’s investments in securities are accounted for in accordance with applicable guidance contained in the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”), which requires the classification of securities into one of the following categories: • Securities to be held to maturity (“HTM”): bonds, notes, and debentures for which the Company has the positive intent and ability to hold to maturity are reported at cost, adjusted for premiums and discounts that are recognized in interest income using the interest method over the period to maturity. • Securities available for sale (“AFS”): available for sale securities consist of bonds, notes, and debentures that are available to meet the Company’s operating needs. These securities are reported at fair value. Unrealized holding gains and losses, net of tax, on AFS debt securities are reported as a net amount in other comprehensive income. Purchase premiums and discounts are recognized in interest income using the interest method over the terms of the securities. Realized gains and losses on the sale of debt securities are determined using the specific-identification method. The Company follows FASB guidance related to the recognition and presentation of other-than-temporary impairment. The guidance specifies that if an entity does not have the intent to sell a debt security and it is not more likely than not that the Company will be required to sell the security prior to recovery, the security would not be considered other-than-temporarily impaired unless there is a credit loss. When an entity does not intend to sell the security, and it is more likely than not that the entity will not have to sell the security before recovery of its cost basis, it will recognize the credit component of an other-than-temporary impairment of a debt security in earnings and the remaining portion in other comprehensive income. Loans The Company’s loan portfolio categories include real estate, commercial and consumer loans. Real estate loans are further categorized into construction and development, 1-4 family residential, multifamily, farmland and commercial real estate loans. The consumer loan category includes loans originated through indirect lending. Indirect lending, which is lending initiated through third-party business partners, is largely comprised of loans made through automotive dealerships. Loans for which management has the intent and ability to hold for the foreseeable future, or until maturity or pay-off are stated at unpaid principal balances, adjusted by an allowance for loan losses. Interest on loans is calculated by using the simple interest method on daily balances of the principal amount outstanding. Loans are ordinarily placed on nonaccrual when a loan is specifically determined to be impaired or when principal or interest is delinquent for 90 days or more; however, management may elect to continue the accrual when the estimated net realizable value of collateral is sufficient to cover the principal balance and the accrued interest. Any unpaid interest previously accrued on nonaccrual loans is reversed from income. Interest income, generally, is not recognized on specific impaired loans unless the likelihood of further loss is remote. Interest payments received on such loans are applied as a reduction of the loan principal balance. Interest income on other nonaccrual loans is recognized only to the extent of interest payments received. A loan may be returned to accrual status when all the principal and interest amounts contractually due are brought current and future principal and interest amounts contractually due are reasonably assured, which is typically evidenced by a sustained period of repayment performance by the borrower. The Company considers a loan to be impaired when, based upon current information and events, it believes it is probable that the Company will be unable to collect all amounts due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. The Company’s impaired loans include troubled debt restructurings and performing and non-performing loans for which full payment of principal or interest is not expected. Large groups of smaller balance homogeneous loans are collectively evaluated for impairment. The Company calculates an allowance required for impaired loans based on the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s observable market price or the fair value of its collateral. If the recorded investment in the impaired loan exceeds the measure of fair value, a valuation allowance is required as a component of the allowance for loan losses. Changes to the valuation allowance are recorded as a component of the provision for loan losses. The Company follows the FASB accounting guidance on sales of financial assets, which includes participating interests in loans. For loan participations that are structured in accordance with this guidance, the sold portions are recorded as a reduction of the loan portfolio. Loan participations that do not meet the criteria are accounted for as secured borrowings. Allowance for Loan Losses The adequacy of the allowance for loan losses is determined in accordance with GAAP. The allowance for loan losses is estimated through a provision for loan losses charged to earnings. Loan losses are charged against the allowance when management believes the loan balance is uncollectable. Subsequent recoveries, if any, are credited to the allowance. The allowance is an amount that management believes will be adequate to absorb probable losses inherent in the loan portfolio as of the balance sheet date based on evaluations of the collectability of loans and prior loan loss experience. The evaluations take into consideration such factors as changes in the nature and volume of the loan portfolio, overall portfolio quality, review of specific problem loans, and current economic conditions that may affect the borrower’s ability to pay. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available. Allowances for impaired loans are generally determined based on collateral values or the present value of estimated cash flows. Credits deemed uncollectible are charged to the allowance. Provisions for loan losses and recoveries on loans previously charged off are added to the allowance. Past due status is determined based on contractual terms. The allowance consists of allocated and general components. The allocated component relates to loans that are classified as impaired. For loans that are classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The general component covers non-classified loans and is based on historical loss experience adjusted for qualitative factors. Based on management’s review and observations made through qualitative review, management may apply qualitative adjustments to determine loss estimates at a group and/or portfolio segment level as deemed appropriate. Management has an established methodology to determine the adequacy of the allowance for loan losses that assesses the risks and losses inherent in its portfolio and portfolio segments. The Company utilizes an internally developed model that requires judgment to determine the estimation method that fits the credit risk characteristics of the loans in its portfolio and portfolio segments. Qualitative and environmental factors that may not be directly reflected in quantitative estimates include: asset quality trends, changes in loan concentrations, new products and process changes, changes and pressures from competition, changes in lending policies and underwriting practices, trends in the nature and volume of the loan portfolio, changes in experience and depth of lending staff and management and national and regional economic trends. Changes in these factors are considered in determining changes in the allowance for loan losses. The impact of these factors on the Company’s qualitative assessment of the allowance for loan losses can change from period to period based on management’s assessment of the extent to which these factors are already reflected in historic loss rates. The uncertainty inherent in the estimation process is also considered in evaluating the allowance for loan losses. In the ordinary course of business, the Bank enters into commitments to extend credit and standby letters of credit. Such financial instruments are recorded in the financial statements when they become payable. The credit risk associated with these commitments is evaluated in a manner similar to the allowance for loan losses. The reserve for unfunded lending commitments is included in accrued taxes and other liabilities in the consolidated balance sheet. At March 31, 2019 and December 31, 2018 the reserve for unfunded loan commitments was $85,000 and $66,000 , respectively. Acquisition Accounting Acquisitions are accounted for under the purchase method of accounting. Purchased assets and assumed liabilities are recorded at their respective acquisition date fair values, and identifiable intangible assets are recorded at fair value. If the consideration given exceeds the fair value of the net assets received, goodwill is recognized. If the fair value of the net assets received exceeds the consideration given, a bargain purchase gain is recognized. Fair values are subject to refinement for up to one year after the closing date of an acquisition as information relative to closing date fair values becomes available. Purchased loans acquired in a business combination are recorded at their estimated fair value as of the acquisition date. The fair value of loans acquired is determined using a discounted cash flow model based on assumptions regarding the amount and timing of principal and interest prepayments, estimated payments, estimated default rates, estimated loss severity in the event of defaults, and current market rates. Estimated credit losses are included in the determination of fair value; therefore, an allowance for loan losses is not recorded on the acquisition date. The fair value adjustment is amortized over the life of the loan using the effective interest method, except for those loans accounted for under ASC Topic 310-30, discussed below. The Company accounts for acquired impaired loans under ASC Topic 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality (“ASC 310-30”). An acquired loan is considered impaired when there is evidence of credit deterioration since origination and it is probable, at the date of acquisition, that we will be unable to collect all contractually required payments. ASC 310-30 prohibits the carryover of an allowance for loan losses for acquired impaired loans. Over the life of the acquired loans, we continually estimate the cash flows expected to be collected on individual loans or on pools of loans sharing common risk characteristics. As of the end of each fiscal quarter, we evaluate the present value of the acquired loans using the effective interest rates. For any increases in cash flows expected to be collected, we adjust the amount of accretable yield recognized on a prospective basis over the loan’s or pool’s remaining life, while we recognize a provision for loan loss in the consolidated statement of operations if the cash flows expected to be collected have decreased. Servicing Rights Primary servicing rights represent the Company’s right to service consumer automobile loans for third-party whole-loan sales and loans sold as participations. Primary servicing involves the collection of payments from individual borrowers and the distribution of these payments to the investors. The Company capitalizes the value expected to be realized from performing specified automobile servicing activities for others as automobile servicing rights (“ASRs”) when the expected future cash flows from servicing are projected to be more than adequate compensation for such activities. These capitalized servicing rights are purchased or retained upon sale of consumer automobile loans. The Company measures all consumer automobile servicing assets and liabilities at fair value. The Company defines servicing rights based on both the availability of market inputs and the manner in which the Company manages the risks of servicing assets and liabilities. The Company leverages all available relevant market data to determine the fair value of recognized servicing assets and liabilities. The Company calculates the fair value of ASRs using various assumptions including future cash flows, market discount rates, expected prepayments, servicing costs and other factors. A significant change in prepayments of loans in the servicing portfolio could result in significant changes in the valuation adjustments, thus creating potential volatility in the carrying amount of ASRs. For the three months ended March 31, 2019 and 2018, expected future cash flows from ASRs approximated adequate compensation for such activities. Accordingly, the Company has not recorded an asset or liability. There were no loan sales during the three months ended March 31, 2019 or 2018. Reclassifications Certain reclassifications have been made to the 2018 financial statements to be consistent with the 2019 presentation, if applicable. Concentrations of Credit Risk The Company’s loan portfolio consists of the various types of loans described in Note 5. Loans and Allowance for Loan Losses. Real estate or other assets secure most loans. The majority of loans have been made to individuals and businesses in the Company’s market of southeast Louisiana. Customers are dependent on the condition of the local economy for their livelihoods and servicing their loan obligations. The Company does not have any significant concentrations in any one industry or individual customer. Tax Cuts and Jobs Act Public law No. 115-97, known as the Tax Cuts and Jobs Act (the “Tax Act”), enacted on December 22, 2017, reduced the U.S. federal corporate tax rate from 35% to 21% effective January 1, 2018. Also on December 22, 2017, the SEC issued Staff Accounting Bulletin No. 118 (“SAB 118”), which provides guidance on accounting for tax effects of the Tax Act. SAB 118 provided a measurement period of up to one year from the enactment date to complete the accounting. Any adjustments during the measurement period were included in net earnings from continuing operations as an adjustment to income tax expense in the reporting period when such adjustments were determined. Based on the information available and interpretation of the rules, the Company recorded the impact of the reduction in the corporate tax rate and remeasurement of certain deferred tax assets and liabilities in the fourth quarter of 2017. An additional $0.6 million was expensed in the first quarter of 2018 due to the remeasurement of the Company’s deferred tax balance, resulting in an effective tax rate of 35.8% for the quarter ended March 31, 2018. No additional adjustments were recorded during the measurement period, which ended December 31, 2018. Accounting Standards Adopted in 2019 In June 2018, the FASB issued ASU 2018-07, Compensation - Stock Compensation (Topic 718) , which expands the scope of Topic 718 to include share-based payments issued to nonemployees for goods or services and supersedes Subtopic 505-50, “Equity – Equity-Based Payments to Non-Employees.” The Company adopted ASU 2018-07 on January 1, 2019. The adoption of ASU 2018-07 did not have a material impact on the Company’s consolidated financial statements. In August 2017, the FASB issued ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities , which amends the hedge accounting model in Topic 815 to enable entities to better portray the economics of their risk management activities in the financial statements and enhance the transparency and understandability of hedge results. The amendments expand an entity’s ability to hedge nonfinancial and financial risk components and reduce complexity in fair value hedges of interest rate risk. The guidance eliminates the requirement to separately measure and report hedge ineffectiveness and generally requires the entire change in the fair value of a hedging instrument to be presented in the same income statement line as the hedged item. The guidance also eases certain documentation and assessment requirements and modifies the accounting for components excluded from the assessment of hedge effectiveness. This amended guidance was adopted on January 1, 2019, and, given the current level of derivatives designated as hedges, did not have a material impact on our consolidated financial statements. In March 2017, the FASB issued ASU 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20), Premium Amortization on Purchased Callable Debt Securities . The amendments in the ASU shorten the amortization period for certain callable debt securities held at a premium. Specifically, the amendments require the premium to be amortized to the earliest call date. The amendments do not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. The Company adopted ASU 2017-08 on January 1, 2019. The adoption of this ASU did not have a material impact on the Company’s consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) . The ASU intends to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities and disclosing key information about leasing arrangements. The ASU requires lessees to recognize the following for all leases (with the exception of short-term leases) at the commencement date: (1) a lease liability, which is a lessees’ obligation to make lease payments arising from a lease, measured on a discounted basis; and (2) 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. Under the new guidance, lessor accounting is largely unchanged. Certain targeted improvements were made to align, where necessary, lessor accounting with the lessee accounting model and Topic 606, Revenue from Contracts with Customers . The new lease guidance simplifies the accounting for sale and leaseback transactions primarily because lessees must recognize lease assets and lease liabilities. Lessees (for capital and operating leases) and lessors (for sales-type, direct financing, and operating leases) may apply a modified retrospective transition approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The modified retrospective approach would not require any transition accounting for leases that expired before the earliest comparative period presented. Lessees and lessors may also elect to apply the amendments in the ASU through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective. The Company adopted the ASU on January 1, 2019, using the modified retrospective approach, and recognized a right-of-use asset and related lease liability of $1.2 million . The Company historically has owned all property and equipment and had entered an operating lease for a future branch location on December 31, 2018. Therefore, the adoption of this ASU did not have a significant impact on the Company’s consolidated financial statements. Recent Accounting Pronouncements FASB ASC Topic 250 “Intangibles - Goodwill and Other - Internal Use Software (Subtopic 250-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract” Update No. 2018-15. In August 2018, the FASB issued ASU 2018-15. This ASU requires an entity in a cloud computing arrangement (i.e., hosting arrangement) that is a service contract to follow the internal-use software guidance in ASC 350-40 to determine which implementation costs to capitalize as assets or expense as incurred. Capitalized implementation costs should be presented in the same line item on the balance sheet as amounts prepaid for the hosted service, if any (generally as an “other asset”). The capitalized costs will be amortized over the term of the hosting arrangement, with the amortization expense being presented in the same income statement line item as the fees paid for the hosted service. ASU 2018-15 is effective for the Company on January 1, 2020. Early adoption is permitted, including adoption in any interim period. The adoption of ASU 2018-15 is not expected to have a material impact on the Company’s consolidated financial statements. FASB ASC Topic 820 “Fair Value Measurement: Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement” Update No. 2018-13. In August 2018, the FASB issued ASU 2018-13, which modifies the disclosure requirements for fair value measurements by removing, modifying, or adding certain disclosures. ASU 2018-13 removes the disclosure requirement detailing the amount of and reasons for transfers between Level 1 and Level 2 and the valuation processes for Level 3 fair value measurements will be removed. In addition, this ASU modifies the disclosure requirement for investments in certain entities that calculate net asset value. Lastly, ASU 2018-13 adds a disclosure requirement for changes in unrealized gains and losses for the period included in other comprehensive income for recurring Level 3 fair value measurements held at the end of the reporting period and the range and weighted average of significant unobservable inputs used to develop Level 3 measurements. ASU 2018-13 is effective for the Company on January 1, 2020. Early adoption is permitted upon the issuance of ASU 2018-13. The removed and modified disclosures will be adopted on a retrospective basis, and the new disclosures will be adopted on a prospective basis. The adoption of ASU 2018-13 is not expected to have a material impact on the Company’s consolidated financial statements. FASB ASC Topic 350 “Intangibles – Goodwill and Other: Simplifying the Test for Goodwill Impairment” Update No. 2017-04. The FASB issued ASU No. 2017-04 in January 2017. The ASU simplifies how an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test. Therefore, any carrying amount which exceeds the reporting unit’s fair value, up to the amount of goodwill recorded, will be recognized as an impairment loss. ASU 2017-04 will be effective for the Company on January 1, 2020. The amendments will be applied prospectively on or after the effective date. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. Based on recent goodwill impairments tests, which did not require the application of Step 2, the Company does not expect the adoption of this ASU to have an immediate impact. FASB ASC Topic 326 “Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments” Update No. 2016-13. The FASB issued ASU No. 2016-13 in June 2016. The ASU requires the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts and requires enhanced disclosures related to the significant estimates and judgments used in estimating credit losses, as well as the credit quality and underwriting standards of an organization’s portfolio. In addition, ASU 2016-13 amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. ASU 2016-13 will be effective for the Company on January 1, 2020. We are currently evaluating the potential impact of ASU 2016-13 on our financial statements. In that regard, we have formed a cross-functional working group, under the direction of our Chief Financial Officer and our Chief Risk Officer. The working group is comprised of individuals from various functional areas including credit, risk management, finance and information technology. We have developed an implementation plan to include assessment of processes, portfolio segmentation, model development, system requirements and the identification of data and resource needs, among other things. We have also selected a third-party vendor solution to assist us in the application of ASU 2016-13. The adoption of ASU 2016-13 is likely to result in an increase in the allowance for loan losses as a result of changing from an “incurred loss” model, which encompasses allowances for current known and inherent losses within the portfolio, to an “expected loss” model, which encompasses allowances for losses expected to be incurred over the life of the portfolio. Furthermore, ASU 2016-13 will necessitate that we establish an allowance for expected credit losses on debt securities. While we are currently unable to reasonably estimate the impact of adopting ASU 2016-13, we expect that the impact of adoption will be significantly influenced by the composition, characteristics and quality of our loan and securities portfolios, as well as the prevailing economic conditions and forecasts, as of the adoption date.

BUSINESS COMBINATIONS

BUSINESS COMBINATIONS	3 Months Ended
	Mar. 31, 2019
Business Combinations [Abstract]
BUSINESS COMBINATIONS	BUSINESS COMBINATIONS Mainland Bank On March 1, 2019, the Company completed the acquisition of Mainland Bank (“Mainland”) located in Texas City, Texas. The Company acquired 100% of Mainland’s outstanding common shares for an aggregate merger consideration of 763,849 shares of the Company’s common stock, for a total of approximately $18.6 million . The acquisition of Mainland expanded the Company’s branch footprint into the greater Houston, Texas market. After fair value adjustments, the acquisition added $128.4 million in total assets, $82.4 million in loans, and $107.6 million in deposits. As consideration paid was in excess of the net fair value of acquired assets, the Company recorded $5.1 million of goodwill. Goodwill resulted from a combination of synergies and cost savings, expansion into Texas with the addition of three branch locations, enhanced products and services, and a lower cost of funds. The change in goodwill and other intangibles at March 31, 2019 compared to December 31, 2018 is primarily attributable to the goodwill and core deposit intangible recorded as a result of the Mainland acquisition. The table below shows the allocation of the consideration paid for Mainland’s common equity to the acquired identifiable assets and liabilities assumed and the goodwill generated from the transaction (dollars in thousands). The fair values listed below, primarily related to loans and deferred tax assets and liabilities, are subject to refinement for up to one year after the closing date of the acquisition as additional information becomes available. Purchase price: Stock issued $ 18,637 Fair value of assets acquired: Cash and cash equivalents 38,365 Loans 82,431 Other real estate owned 1,408 Bank premises and equipment 2,550 Core deposit intangible asset 2,439 Other assets 1,210 Total assets acquired 128,403 Fair value of liabilities acquired: Deposits 107,646 Repurchase agreements 4,684 Other liabilities 2,501 Total liabilities assumed 114,831 Fair value of net assets acquired 13,572 Goodwill $ 5,065 Fair value adjustments to assets acquired and liabilities assumed are generally amortized using the effective yield method over periods consistent with the average life, useful life and/or contractual term of the related assets and liabilities. The fair value of net assets acquired includes a fair value adjustment to loans as of the acquisition date. The adjustment for the acquired loan portfolio is based on current market interest rates, and the Company’s initial evaluation of credit losses identified. No loans acquired from Mainland were considered to be purchased credit impaired loans. The contractually required principal and interest payments of the loans acquired from Mainland is $91.9 million , of which $1.3 million is not expected to be collected. Supplemental Unaudited Pro Forma Information The following unaudited supplemental pro forma information is presented to show estimated results assuming Mainland was acquired as of January 1, 2018. These unaudited pro forma results are not necessarily indicative of the operating results that the Company would have achieved had it completed the acquisition as of January 1, 2018 and should not be considered representative of future operating results. The pro forma net income for the three months ended March 31, 2019 excludes the tax-affected amount of $1.6 million of acquisition expenses recorded in noninterest expense by the Company and Mainland. Unaudited pro forma for the three months ended March 31, (dollars in thousands) 2019 2018 Interest income $ 21,628 $ 18,604 Noninterest income 1,428 1,150 Net income 3,875 2,710 For the three months ended March 31, 2019 , Mainland added approximately $0.6 million , $20,000 , and $0.3 million to interest income, noninterest income, and net income, respectively. Acquisition Expense Acquisition related costs of $0.9 million are included in acquisition expenses in the accompanying consolidated statements of income for the three months ended March 31, 2019 . These costs include system conversion and integrating operations charges as well as legal and consulting expenses.

EARNINGS PER SHARE

EARNINGS PER SHARE	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
EARNINGS PER SHARE	EARNINGS PER SHARE The following is a summary of the information used in the computation of basic and diluted earnings per share for the three months ended March 31, 2019 and 2018 (in thousands, except share data). Three months ended March 31, 2019 2018 Earnings per common share - basic Net income allocated to common shareholders $ 3,871 $ 2,370 Weighted-average basic shares outstanding 9,675,381 9,513,332 Basic earnings per common share $ 0.40 $ 0.25 Earnings per common share - diluted Net income allocated to common shareholders $ 3,871 $ 2,370 Weighted-average basic shares outstanding 9,675,381 9,513,332 Dilutive effect of securities 95,371 96,271 Total weighted average diluted shares outstanding 9,770,752 9,609,603 Diluted earnings per common share $ 0.40 $ 0.25 The weighted average shares that have an antidilutive effect in the calculation of diluted earnings per common share and have been excluded from the computations above are shown below. Three months ended March 31, 2019 2018 Stock options — 8,891 Restricted stock awards 55 32,223 Restricted stock units 44,467 —

INVESTMENT SECURITIES

INVESTMENT SECURITIES	3 Months Ended
	Mar. 31, 2019
Investments, Debt and Equity Securities [Abstract]
INVESTMENT SECURITIES	INVESTMENT SECURITIES The amortized cost and approximate fair value of investment securities classified as AFS are summarized below as of the dates presented (dollars in thousands). Amortized Cost Gross Unrealized Gains Gross Fair Value March 31, 2019 Obligations of U.S. government agencies and corporations $ 7,305 $ 27 $ (72 ) $ 7,260 Obligations of state and political subdivisions 31,756 123 (369 ) 31,510 Corporate bonds 18,755 80 (483 ) 18,352 Residential mortgage-backed securities 147,104 757 (1,106 ) 146,755 Commercial mortgage-backed securities 61,061 206 (887 ) 60,380 Total $ 265,981 $ 1,193 $ (2,917 ) $ 264,257 Amortized Cost Gross Gross Fair December 31, 2018 Obligations of U.S. government agencies and corporations $ 7,946 $ 14 $ (90 ) $ 7,870 Obligations of state and political subdivisions 34,875 6 (895 ) 33,986 Corporate bonds 16,166 53 (710 ) 15,509 Residential mortgage-backed securities 136,768 336 (2,177 ) 134,927 Commercial mortgage-backed securities 57,749 108 (1,168 ) 56,689 Total $ 253,504 $ 517 $ (5,040 ) $ 248,981 Proceeds from sales of investment securities AFS and gross gains and losses are summarized below for the periods presented (dollars in thousands). Three months ended March 31, 2019 2018 Proceeds from sale $ 393 $ — Gross gains $ 2 $ — Gross losses $ — $ — The amortized cost and approximate fair value of investment securities classified as HTM are summarized below as of the dates presented (dollars in thousands). Amortized Cost Gross Gross Fair March 31, 2019 Obligations of state and political subdivisions $ 10,586 $ 5 $ (33 ) $ 10,558 Residential mortgage-backed securities 5,230 — (61 ) 5,169 Total $ 15,816 $ 5 $ (94 ) $ 15,727 Amortized Cost Gross Gross Fair December 31, 2018 Obligations of state and political subdivisions $ 10,699 $ 2 $ (111 ) $ 10,590 Residential mortgage-backed securities 5,367 — (152 ) 5,215 Total $ 16,066 $ 2 $ (263 ) $ 15,805 Securities are classified in the consolidated balance sheets according to management’s intent. The Company had no securities classified as trading as of March 31, 2019 or December 31, 2018 . The aggregate fair values and aggregate unrealized losses on securities whose fair values are below book values are summarized in the tables below. Unrealized losses are generally due to changes in interest rates. The Company has the intent to hold these securities either until maturity or a forecasted recovery, and it is more likely than not that the Company will not have to sell the securities before the recovery of their cost basis. Due to the nature of the investment, current market prices, and a rising interest rate environment, these unrealized losses are considered a temporary impairment of the securities. The number of AFS securities, fair value, and unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, are summarized below as of the dates presented (dollars in thousands). Less than 12 Months 12 Months or More Total Count Fair Value Unrealized Losses Fair Value Unrealized Fair Value Unrealized March 31, 2019 Obligations of U.S. government agencies and corporations 11 $ — $ — $ 4,497 $ (72 ) $ 4,497 $ (72 ) Obligations of state and political subdivisions 39 5,379 (33 ) 15,497 (336 ) 20,876 (369 ) Corporate bonds 26 5,209 (118 ) 7,220 (365 ) 12,429 (483 ) Residential mortgage-backed securities 165 4,020 (5 ) 82,591 (1,101 ) 86,611 (1,106 ) Commercial mortgage-backed securities 91 3,188 (20 ) 39,084 (867 ) 42,272 (887 ) Total 332 $ 17,796 $ (176 ) $ 148,889 $ (2,741 ) $ 166,685 $ (2,917 ) Less than 12 Months 12 Months or More Total Count Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized December 31, 2018 Obligations of U.S. government agencies and corporations 15 $ 469 $ — $ 5,304 $ (90 ) $ 5,773 $ (90 ) Obligations of state and political subdivisions 63 13,716 (330 ) 19,270 (565 ) 32,986 (895 ) Corporate bonds 27 6,793 (225 ) 5,763 (485 ) 12,556 (710 ) Residential mortgage-backed securities 193 24,868 (245 ) 79,517 (1,932 ) 104,385 (2,177 ) Commercial mortgage-backed securities 94 5,156 (42 ) 39,560 (1,126 ) 44,716 (1,168 ) Total 392 $ 51,002 $ (842 ) $ 149,414 $ (4,198 ) $ 200,416 $ (5,040 ) The number of HTM securities, fair value, and unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, are summarized below as of the dates presented (dollars in thousands). Less than 12 Months 12 Months or More Total Count Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized March 31, 2019 Obligations of state and political subdivisions 1 $ — $ — $ 5,433 $ (33 ) $ 5,433 $ (33 ) Residential mortgage-backed securities 9 — — 5,169 (61 ) 5,169 (61 ) Total 10 $ — $ — $ 10,602 $ (94 ) $ 10,602 $ (94 ) Less than 12 Months 12 Months or More Total Count Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized December 31, 2018 Obligations of state and political subdivisions 1 $ — $ — $ 5,468 $ (111 ) $ 5,468 $ (111 ) Residential mortgage-backed securities 9 1,761 (35 ) 3,454 (117 ) 5,215 (152 ) Total 10 $ 1,761 $ (35 ) $ 8,922 $ (228 ) $ 10,683 $ (263 ) The unrealized losses in the Company’s investment portfolio, caused by interest rate increases, are not credit issues and the Company does not intend to sell the securities. Furthermore, it is not more likely than not that the Company will be required to sell the securities before recovery of their amortized cost bases. The Company does not consider these securities to be other-than-temporarily impaired at March 31, 2019 or December 31, 2018 . The amortized cost and approximate fair value of debt securities, by contractual maturity (including mortgage-backed securities), are shown below as of the dates presented (dollars in thousands). Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Securities Available For Sale Securities Held To Maturity Amortized Cost Fair Value Amortized Fair March 31, 2019 Due within one year $ 3,314 $ 3,312 $ 755 $ 756 Due after one year through five years 11,910 11,895 3,405 3,408 Due after five years through ten years 52,277 51,713 960 961 Due after ten years 198,480 197,337 10,696 10,602 Total debt securities $ 265,981 $ 264,257 $ 15,816 $ 15,727 Securities Available For Sale Securities Held To Maturity Amortized Fair Amortized Fair December 31, 2018 Due within one year $ 3,734 $ 3,730 $ 755 $ 755 Due after one year through five years 10,681 10,600 3,405 3,406 Due after five years through ten years 44,255 43,460 960 961 Due after ten years 194,834 191,191 10,946 10,683 Total debt securities $ 253,504 $ 248,981 $ 16,066 $ 15,805 At March 31, 2019 , securities with a carrying value of $95.3 million were pledged to secure certain deposits, borrowings, and other liabilities, compared to $77.6 million in pledged securities at December 31, 2018 .

LOANS AND ALLOWANCE FOR LOAN LO

LOANS AND ALLOWANCE FOR LOAN LOSSES	3 Months Ended
	Mar. 31, 2019
Receivables [Abstract]
LOANS AND ALLOWANCE FOR LOAN LOSSES	LOANS AND ALLOWANCE FOR LOAN LOSSES The Company’s loan portfolio consists of the following categories of loans as of the dates presented (dollars in thousands). March 31, 2019 December 31, 2018 Construction and development $ 171,483 $ 157,946 1-4 Family 299,061 287,137 Multifamily 57,487 50,501 Farmland 24,457 21,356 Commercial real estate 646,745 627,004 Total mortgage loans on real estate 1,199,233 1,143,944 Commercial and industrial 255,476 210,924 Consumer 40,210 45,957 Total loans $ 1,494,919 $ 1,400,825 Unamortized premiums and discounts on loans, included in the total loans balances above, were $2.5 million and $1.4 million at March 31, 2019 and December 31, 2018 , respectively. Nonaccrual and Past Due Loans Loans are considered past due if the required principal and interest payments have not been received as of the date such payments were due. Loans are placed on nonaccrual status when, in management’s opinion, the borrower may be unable to meet payment obligations as they become due, as well as when required by regulatory provisions. In determining whether or not a borrower may be unable to meet payment obligations for each class of loans, we consider the borrower’s debt service capacity through the analysis of current financial information, if available, and/or current information with regard to our collateral position. Regulatory provisions would typically require the placement of a loan on nonaccrual status if (i) principal or interest has been in default for a period of 90 days or more unless the loan is both well secured and in the process of collection or (ii) full payment of principal and interest is not expected. Loans may be placed on nonaccrual status regardless of whether or not such loans are considered past due. When interest accrual is discontinued, all unpaid accrued interest is reversed. Interest income on nonaccrual loans is recognized only to the extent that cash payments are received in excess of principal due. A loan may be returned to accrual status when all the principal and interest amounts contractually due are brought current and future principal and interest amounts contractually due are reasonably assured, which is typically evidenced by a sustained period (at least six months) of repayment performance by the borrower. The table below provides an analysis of the aging of loans as of the dates presented (dollars in thousands). March 31, 2019 Accruing Current 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due Nonaccrual Total Past Due & Nonaccrual Acquired Impaired Loans Total Loans Construction and development $ 170,870 $ 154 $ — $ — $ 448 $ 602 $ 11 $ 171,483 1-4 Family 296,218 1,263 10 — 1,095 2,368 475 299,061 Multifamily 57,378 — — — 109 109 — 57,487 Farmland 22,193 — — — — — 2,264 24,457 Commercial real estate 643,889 — — — 1,291 1,291 1,565 646,745 Total mortgage loans on real estate 1,190,548 1,417 10 — 2,943 4,370 4,315 1,199,233 Commercial and industrial 253,316 871 17 — 9 897 1,263 255,476 Consumer 39,143 209 31 — 784 1,024 43 40,210 Total loans $ 1,483,007 $ 2,497 $ 58 $ — $ 3,736 $ 6,291 $ 5,621 $ 1,494,919 December 31, 2018 Accruing Current 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due Nonaccrual Total Past Due & Nonaccrual Acquired Impaired Loans Total Loans Construction and development $ 157,202 $ 175 $ — $ — $ 556 $ 731 $ 13 $ 157,946 1-4 Family 284,205 1,101 41 — 1,300 2,442 490 287,137 Multifamily 50,392 109 — — — 109 — 50,501 Farmland 19,092 — — — — — 2,264 21,356 Commercial real estate 624,244 66 — — 683 749 2,011 627,004 Total mortgage loans on real estate 1,135,135 1,451 41 — 2,539 4,031 4,778 1,143,944 Commercial and industrial 209,399 221 45 — 64 330 1,195 210,924 Consumer 44,493 375 51 — 994 1,420 44 45,957 Total loans $ 1,389,027 $ 2,047 $ 137 $ — $ 3,597 $ 5,781 $ 6,017 $ 1,400,825 Portfolio Segment Risk Factors The following describes the risk characteristics relevant to each of the Company’s loan portfolio segments. Construction and Development - Construction and development loans are generally made for the purpose of acquisition and development of land to be improved through the construction of commercial and residential buildings. The successful repayment of these types of loans is generally dependent upon a commitment for permanent financing from the Company, or from the sale of the constructed property. These loans carry more risk than commercial or residential real estate loans due to the dynamics of construction projects, changes in interest rates, the long-term financing market, and state and local government regulations. One such risk is that loan funds are advanced upon the security of the property under construction, which is of uncertain value prior to the completion of construction. Thus, it is more difficult to evaluate accurately the total loan funds required to complete a project and to calculate related loan-to-value ratios. The Company attempts to minimize the risks associated with construction lending by limiting loan-to-value ratios as described above. In addition, as to speculative development loans, the Company generally makes such loans only to borrowers that have a positive pre-existing relationship with us. The Company manages risk by using specific underwriting policies and procedures for these types of loans and by avoiding excessive concentrations in any one business or industry. 1-4 Family - The 1-4 family portfolio mainly consists of residential mortgage loans to consumers to finance a primary residence. The majority of these loans are secured by properties located in the Company’s market areas and carry risks associated with the creditworthiness of the borrower and changes in the value of the collateral and loan-to-value-ratios. The Company manages these risks through policies and procedures such as limiting loan-to-value ratios at origination, employing experienced underwriting personnel, requiring standards for appraisers, and not making subprime loans. Multifamily - Multifamily loans are normally made to real estate investors to support permanent financing for multifamily residential income producing properties that rely on the successful operation of the property for repayment. This management mainly involves property maintenance and collection of rents due from tenants. This type of lending carries a lower level of risk, as compared to other commercial lending. In addition, underwriting requirements for multifamily properties are stricter than for other non-owner-occupied property types. The Company manages this risk by avoiding concentrations with any particular customer. Farmland - Farmland loans are often for land improvements related to agricultural endeavors and may include construction of new specialized facilities. These loans are usually repaid through the conversion to permanent financing, or if scheduled loan amortization begins, for the long-term benefit of the borrower’s ongoing operations. Underwriting generally involves intensive analysis of the financial strength of the borrower and guarantor, liquidation value of the subject collateral, the associated unguaranteed exposure, and any available secondary sources of repayment, with the greatest emphasis given to a borrower’s capacity to meet cash flow coverage requirements as set forth by Bank policies. Commercial Real Estate - Commercial real estate loans are extensions of credit secured by owner occupied and non-owner occupied collateral. Underwriting generally involves intensive analysis of the financial strength of the borrower and guarantor, liquidation value of the subject collateral, the associated unguaranteed exposure, and any available secondary sources of repayment, with the greatest emphasis given to a borrower’s capacity to meet cash flow coverage requirements as set forth by Bank policies. Repayment is commonly derived from the successful ongoing operations of the property. General market conditions and economic activity may impact the performance of these types of loans, including fluctuations in the value of real estate, new job creation trends, and tenant vacancy rates. The Company attempts to limit risk by analyzing a borrower’s cash flow and collateral value on an ongoing basis. The Company also typically requires personal guarantees from the principal owners of the property, supported by a review of their personal financial statements, as an additional means of mitigating our risk. The Company manages risk by avoiding concentrations in any one business or industry. Commercial and Industrial - Commercial and industrial loans receive similar underwriting treatment as commercial real estate loans in that the repayment source is analyzed to determine its ability to meet cash flow coverage requirements as set forth by Bank policies. Repayment of these loans generally comes from the generation of cash flow as the result of the borrower’s business operations. Commercial lending generally involves different risks from those associated with commercial real estate lending or construction lending. Although commercial loans may be collateralized by equipment or other business assets (including real estate, if available as collateral), the repayment of these types of loans depends primarily on the creditworthiness and projected cash flow of the borrower (and any guarantors). Thus, the general business conditions of the local economy and the borrower’s ability to sell its products and services, thereby generating sufficient operating revenue to repay us under the agreed upon terms and conditions, are the chief considerations when assessing the risk of a commercial loan. The liquidation of collateral, if any, is considered a secondary source of repayment because equipment and other business assets may, among other things, be obsolete or of limited resale value. The Company actively monitors certain financial measures of the borrower, including advance rate, cash flow, collateral value and other appropriate credit factors. Consumer - Consumer loans are offered by the Company in order to provide a full range of retail financial services to its customers and include auto loans, credit cards, and other consumer installment loans. Typically, the Company evaluates the borrower’s repayment ability through a review of credit scores and an evaluation of debt to income ratios. Repayment of consumer loans depends upon key consumer economic measures and upon the borrower’s financial stability, and is more likely to be adversely affected by divorce, job loss, illness and personal hardships than repayment of other loans. A shortfall in the value of any collateral also may pose a risk of loss to the Company for these types of loans. Indirect auto loans comprised the largest component of our consumer loans, representing 64% of our total consumer loans at March 31, 2019. At March 31, 2019, the weighted average remaining term of the indirect auto loan portfolio was 2.6 years . We exited the indirect auto lending business at the end of 2015. Credit Quality Indicators Loans are categorized into risk categories based on relevant information about the ability of borrowers to service their debt, such as current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. The following definitions are utilized for risk ratings, which are consistent with the definitions used in supervisory guidance: Pass - Loans not meeting the criteria below are considered pass. These loans have high credit characteristics and financial strength. The borrowers at least generate profits and cash flow that are in line with peer and industry standards and have debt service coverage ratios above loan covenants and our policy guidelines. For some of these loans, a guaranty from a financially capable party mitigates characteristics of the borrower that might otherwise result in a lower grade. Special Mention - Loans classified as special mention possess some credit deficiencies that need to be corrected to avoid a greater risk of default in the future. For example, financial ratios relating to the borrower may have deteriorated. Often, a special mention categorization is temporary while certain factors are analyzed or matters addressed before the loan is re-categorized as either pass or substandard. Substandard - Loans classified as substandard are inadequately protected by the current net worth and paying capacity of the borrower or the liquidation value of any collateral. If deficiencies are not addressed, it is likely that this category of loan will result in the Bank incurring a loss. Where a borrower has been unable to adjust to industry or general economic conditions, the borrower’s loan is often categorized as substandard. 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. Loss - Loans classified as loss are considered uncollectible and of such little value that their continuance as recorded assets is not warranted. This classification does not mean that the assets have absolutely no recovery or salvage value, but rather it is not practical or desirable to defer writing off these assets. The table below presents the Company’s loan portfolio by category and credit quality indicator as of the dates presented (dollars in thousands). March 31, 2019 Pass Special Mention Substandard Doubtful Total Construction and development $ 170,907 $ — $ 443 $ 133 $ 171,483 1-4 Family 297,532 — 1,457 72 299,061 Multifamily 57,378 — 109 — 57,487 Farmland 22,193 — 2,264 — 24,457 Commercial real estate 645,454 — 1,291 — 646,745 Total mortgage loans on real estate 1,193,464 — 5,564 205 1,199,233 Commercial and industrial 252,462 — 3,014 — 255,476 Consumer 39,208 218 784 — 40,210 Total loans $ 1,485,134 $ 218 $ 9,362 $ 205 $ 1,494,919 December 31, 2018 Pass Special Mention Substandard Doubtful Total Construction and development $ 157,360 $ — $ 586 $ — $ 157,946 1-4 Family 285,692 69 1,303 73 287,137 Multifamily 50,501 — — — 50,501 Farmland 19,092 — 2,264 — 21,356 Commercial real estate 625,670 — 1,334 — 627,004 Total mortgage loans on real estate 1,138,315 69 5,487 73 1,143,944 Commercial and industrial 207,941 — 2,983 — 210,924 Consumer 44,798 167 992 — 45,957 Total loans $ 1,391,054 $ 236 $ 9,462 $ 73 $ 1,400,825 The Company had no loans that were classified as loss at March 31, 2019 or December 31, 2018 . Loan participations and whole loans sold to and serviced for others are not included in the accompanying consolidated balance sheets. The balance of loans serviced for others was $128.9 million and $135.4 million as of March 31, 2019 and December 31, 2018 , respectively. The unpaid principal balance of these loans was approximately $217.8 million and $187.6 million as of March 31, 2019 and December 31, 2018 , respectively. In the ordinary course of business, the Company makes loans to related parties including its executive officers, principal stockholders, directors and their immediate family members, as well as companies in which these individuals are principal owners. Loans outstanding to such related party borrowers amounted to approximately $92.3 million and $93.0 million as of March 31, 2019 and December 31, 2018 , respectively. The table below shows the aggregate principal balance of loans to such related parties as of the dates presented (dollars in thousands). March 31, 2019 December 31, 2018 Balance, beginning of period $ 93,021 $ 31,153 New loans 1,611 79,639 Repayments and changes in relationship (2,349 ) (17,771 ) Balance, end of period $ 92,283 $ 93,021 Loans Acquired with Deteriorated Credit Quality The Company accounts for certain loans acquired as acquired impaired loans under ASC 310-30 due to evidence of credit deterioration at acquisition and the probability that the Company will be unable to collect all contractually required payments. The acquired impaired loans had no accretable yield recorded for the three months ended March 31, 2019 and 2018 . Allowance for Loan Losses The table below shows a summary of the activity in the allowance for loan losses for the three months ended March 31, 2019 and 2018 (dollars in thousands). Three months ended March 31, 2019 2018 Balance, beginning of period $ 9,454 $ 7,891 Provision for loan losses 265 625 Loans charged off (104 ) (446 ) Recoveries 27 60 Balance, end of period $ 9,642 $ 8,130 The following tables outline the activity in the allowance for loan losses by collateral type for the three months ended March 31, 2019 and 2018 , and show both the allowances and portfolio balances for loans individually and collectively evaluated for impairment as of March 31, 2019 and 2018 (dollars in thousands). Three months ended March 31, 2019 Construction & Development Farmland 1-4 Family Multifamily Commercial Real Estate Commercial & Industrial Consumer Total Allowance for loan losses: Beginning balance $ 1,038 $ 81 $ 1,465 $ 331 $ 4,182 $ 1,641 $ 716 $ 9,454 Provision 55 20 44 49 44 21 32 265 Charge-offs — — — — — — (104 ) (104 ) Recoveries 1 — 2 — — 11 13 27 Ending balance $ 1,094 $ 101 $ 1,511 $ 380 $ 4,226 $ 1,673 $ 657 $ 9,642 Ending allowance balance for loans individually evaluated for impairment $ 66 $ — $ — $ — $ — $ — $ 200 $ 266 Ending allowance balance for loans acquired with deteriorated credit quality — — — — — — — — Ending allowance balance for loans collectively evaluated for impairment $ 1,028 $ 101 $ 1,511 $ 380 $ 4,226 $ 1,673 $ 457 $ 9,376 Loans receivable: Balance of loans individually evaluated for impairment $ 395 $ — $ 1,247 $ 109 $ 1,368 $ 15 $ 748 $ 3,882 Balance of loans acquired with deteriorated credit quality 11 2,264 475 — 1,565 1,263 43 5,621 Balance of loans collectively evaluated for impairment 171,077 22,193 297,339 57,378 643,812 254,198 39,419 1,485,416 Total period-end balance $ 171,483 $ 24,457 $ 299,061 $ 57,487 $ 646,745 $ 255,476 $ 40,210 $ 1,494,919 Three months ended March 31, 2018 Construction & Development Farmland 1-4 Family Multifamily Commercial Real Estate Commercial & Industrial Consumer Total Allowance for loan losses: Beginning balance $ 945 $ 60 $ 1,287 $ 332 $ 3,599 $ 693 $ 975 $ 7,891 Provision 23 3 — 27 9 519 44 625 Charge-offs — — (7 ) — — (310 ) (129 ) (446 ) Recoveries 6 — 3 — — 33 18 60 Ending balance $ 974 $ 63 $ 1,283 $ 359 $ 3,608 $ 935 $ 908 $ 8,130 Ending allowance balance for loans individually evaluated for impairment $ — $ — $ — $ — $ — $ 58 $ 293 $ 351 Ending allowance balance for loans acquired with deteriorated credit quality — — — — — — — — Ending allowance balance for loans collectively evaluated for impairment $ 974 $ 63 $ 1,283 $ 359 $ 3,608 $ 877 $ 615 $ 7,779 Loans receivable: Balance of loans individually evaluated for impairment $ 159 $ — $ 1,133 $ — $ 1,186 $ 545 $ 1,056 $ 4,079 Balance of loans acquired with deteriorated credit quality 55 2,512 1,333 828 2,075 1,315 3 8,121 Balance of loans collectively evaluated for impairment 162,123 18,213 275,512 53,676 550,894 134,105 66,227 1,260,750 Total period-end balance $ 162,337 $ 20,725 $ 277,978 $ 54,504 $ 554,155 $ 135,965 $ 67,286 $ 1,272,950 Impaired Loans The Company considers a loan to be impaired when, based on current information and events, the Company determines that it will not be able to collect all amounts due according to the loan agreement, including scheduled interest payments. Determination of impairment is treated the same across all classes of loans. When the Company identifies a loan as impaired, it measures the impairment based on the present value of expected future cash flows, discounted at the loan’s effective interest rate, except when the sole (remaining) source of repayment for the loans is the operation or liquidation of the collateral. In these cases when foreclosure is probable, the Company uses the current fair value of the collateral, less selling costs, instead of discounted cash flows. If the Company determines that the value of the impaired loan is less than the recorded investment in the loan (net of previous charge-offs, deferred loan fees or costs, and unamortized premium or discount), the Company recognizes impairment through an allowance estimate or a charge-off to the allowance. When the ultimate collectability of the total principal of an impaired loan is in doubt and the loan is on nonaccrual, all payments are applied to principal, under the cost recovery method. When the ultimate collectability of the total principal of an impaired loan is not in doubt and the loan is on nonaccrual, contractual interest is credited to interest income when received, under the cash basis method. The following tables contain information on the Company’s impaired loans, which include troubled debt restructurings (“TDRs”), discussed in more detail below, and nonaccrual loans individually evaluated for impairment for purposes of determining the allowance for loan losses. The average balances are calculated based on the month-end balances of the loans during the period reported (dollars in thousands). March 31, 2019 Recorded Investment Unpaid Principal Balance Related Allowance With no related allowance recorded: Construction and development $ 262 $ 281 $ — 1-4 Family 1,247 1,250 — Multifamily 109 109 — Commercial real estate 1,368 1,392 — Total mortgage loans on real estate 2,986 3,032 — Commercial and industrial 15 16 — Consumer 178 209 — Total 3,179 3,257 — With related allowance recorded: Construction and development 133 136 66 Total mortgage loans on real estate 133 136 66 Consumer 570 609 200 Total 703 745 266 Total loans: Construction and development 395 417 66 1-4 Family 1,247 1,250 — Multifamily 109 109 — Commercial real estate 1,368 1,392 — Total mortgage loans on real estate 3,119 3,168 66 Commercial and industrial 15 16 — Consumer 748 818 200 Total $ 3,882 $ 4,002 $ 266 December 31, 2018 Recorded Investment Unpaid Principal Balance Related Allowance With no related allowance recorded: Construction and development $ 339 $ 359 $ — 1-4 Family 1,177 1,180 — Commercial real estate 761 777 — Total mortgage loans on real estate 2,277 2,316 — Commercial and industrial 76 77 Consumer 215 237 — Total 2,568 2,630 — With related allowance recorded: Consumer 701 738 236 Total 701 738 236 Total loans: Construction and development 339 359 — 1-4 Family 1,177 1,180 — Commercial real estate 761 777 — Total mortgage loans on real estate 2,277 2,316 — Commercial and industrial 76 77 — Consumer 916 975 236 Total $ 3,269 $ 3,368 $ 236 Presented in the tables below is the average recorded investment of the impaired loans and the related amount of interest income recognized during the time within the period that the loans were impaired. The average balances are calculated based on the month-end balances of the loans during the periods reported (dollars in thousands). Three months ended March 31, 2019 2018 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized With no related allowance recorded: Construction and development $ 264 $ 5 $ 160 $ 2 1-4 Family 1,232 10 1,210 11 Multifamily 108 — — — Commercial real estate 961 2 1,189 8 Total mortgage loans on real estate 2,565 17 2,559 21 Commercial and industrial 20 — 359 — Consumer 245 — 274 — Total 2,830 17 3,192 21 With related allowance recorded: Construction and development 134 — — — Total mortgage loans on real estate 134 — — — Commercial and industrial — — 387 — Consumer 582 — 862 — Total 716 — 1,249 — Total loans: Construction and development 398 5 160 2 1-4 Family 1,232 10 1,210 11 Multifamily 108 — — — Commercial real estate 961 2 1,189 8 Total mortgage loans on real estate 2,699 17 2,559 21 Commercial and industrial 20 — 746 — Consumer 827 — 1,136 — Total $ 3,546 $ 17 $ 4,441 $ 21 Troubled Debt Restructurings In situations where, for economic or legal reasons related to a borrower’s financial difficulties, the Company grants a concession for other than an insignificant period of time to the borrower that the Company would not otherwise consider, the related loan is classified as a TDR. The Company strives to identify borrowers in financial difficulty early and work with them to modify their loans to more affordable terms before such loans reach nonaccrual status. These modified terms may include rate reductions, principal forgiveness, payment forbearance and other actions intended to minimize the economic loss and to avoid foreclosure or repossession of the collateral. In cases in which the Company grants the borrower new terms that provide for a reduction of either interest or principal, or otherwise include a concession, the Company identifies the loan as a TDR and measures any impairment on the restructuring as previously noted for impaired loans. Loans classified as TDRs, consisting of 23 credits, totaled approximately $2.2 million at March 31, 2019 , compared to 24 credits totaling $2.2 million at December 31, 2018 . At March 31, 2019 , 15 of the restructured loans were considered TDRs due to modification of terms through adjustments to maturity, seven of the restructured loans were considered TDRs due to a reduction in the interest rate to a rate lower than the current market rate, and one restructured loan was considered a TDR due to forgiveness of interest due on the loan. As of March 31, 2019 and December 31, 2018 , three of the TDRs, consisting of one $0.5 million commercial real estate loan, one $0.3 million construction and development loan, and one $0.2 million 1-4 family loan, were in default of their modified terms and are included in nonaccrual loans. The Company individually evaluates each TDR for allowance purposes, primarily based on collateral value, and excludes these loans from the loan population that is collectively evaluated for impairment. At March 31, 2019 and December 31, 2018 , there were no available balances on loans classified as TDRs that the Company was committed to lend. There were no loans modified under TDRs during the three month periods ended March 31, 2019 and 2018 . There were no loans modified under TDRs during the previous twelve month period that subsequently defaulted during the three months ended March 31, 2019 .

STOCKHOLDERS' EQUITY

STOCKHOLDERS' EQUITY	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
STOCKHOLDERS' EQUITY	STOCKHOLDERS’ EQUITY Accumulated Other Comprehensive Loss Activity within the balances in accumulated other comprehensive loss is shown in the tables below (dollars in thousands). Three months ended March 31, 2019 2018 Beginning of Period Net Change End of Period Beginning of Period Net Change End of Period Unrealized gain (loss), available for sale, net $ (1,647 ) $ 2,212 $ 565 $ (71 ) $ (1,789 ) $ (1,860 ) Reclassification of realized gain, net (1,925 ) (2 ) (1,927 ) (1,914 ) — (1,914 ) Unrealized loss, transfer from available for sale to held to maturity, net 5 — 5 7 — 7 Change in fair value of interest rate swap designated as a cash flow hedge, net 491 (167 ) 324 407 265 672 Accumulated other comprehensive loss $ (3,076 ) $ 2,043 $ (1,033 ) $ (1,571 ) $ (1,524 ) $ (3,095 )

STOCK-BASED COMPENSATION

STOCK-BASED COMPENSATION	3 Months Ended
	Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
STOCK-BASED COMPENSATION	STOCK-BASED COMPENSATION Equity Incentive Plan. The Company’s 2017 Long-Term Incentive Compensation Plan (the “Plan”) authorizes the grant of various types of equity grants and awards, such as restricted stock, restricted stock units, stock options and stock appreciation rights, to eligible participants, which include all of the Company’s employees, non-employee directors, and consultants. The Plan has reserved 600,000 shares of common stock for grant, award or issuance to eligible participants, including shares underlying granted options. As of March 31, 2019 , 394,691 shares were available for future grants under the Plan. Shares covered by awards that expire or terminate will again be available for the grant of awards under the Plan. Stock Options The Company uses a Black-Scholes option pricing model to estimate the fair value of share-based awards. The Black-Scholes option pricing model incorporates various highly subjective assumptions, including expected term and expected volatility. The assumptions presented below were used for the options granted during the three months ended March 31, 2019 . Expected dividends 0.82 % Expected volatility 27.26 % Risk-free interest rate 2.63 % Expected term (in years) 6.5 Weighted-average grant date fair value $ 7.30 Stock option expense in the accompanying consolidated statements of income for the three months ended March 31, 2019 and 2018 was $68,000 and $61,000 , respectively. At March 31, 2019 , there was $0.8 million of unrecognized compensation cost related to stock options that is expected to be recognized over a weighted-average period of 3.32 years . The table below summarizes stock option activity for the periods presented. Three months ended March 31, 2019 2018 Number of Options Weighted Average Exercise Price Number of Options Weighted Average Exercise Price Outstanding at beginning of period 340,646 $ 15.98 322,917 $ 15.09 Granted 36,984 24.40 31,788 24.30 Forfeited — — — — Exercised — — (8,001 ) 14.00 Outstanding at end of period 377,630 $ 16.81 346,704 $ 15.96 Exercisable at end of period 185,161 $ 15.23 123,464 $ 14.77 At March 31, 2019 , the shares underlying outstanding stock options and exercisable stock options had aggregate intrinsic values of $2.2 million and $1.4 million , respectively. Restricted Stock and Restricted Stock Units Under the Plan, the Company may grant restricted stock, restricted stock units, and other stock-based awards to Plan participants, subject to forfeiture upon the occurrence of certain events until the dates specified in the participant’s award agreement. While restricted stock is subject to forfeiture, restricted stock participants may exercise full voting rights and will receive all dividends paid with respect to the restricted shares. Restricted stock units do not have voting rights and do not receive dividends or dividend equivalents. The restricted stock granted under the Plan is typically subject to a vesting period. Compensation expense for restricted stock is recognized over the requisite service period of generally five years for employees and two years for non-employee directors for the entire award on a straight-line basis. Upon vesting of restricted stock and restricted stock units, the benefit of tax deductions in excess of recognized compensation expense is reflected as an income tax benefit in the unaudited Consolidated Statements of Income. Historically, the Company has issued restricted stock awards to Plan participants. Beginning in 2019, the Company issued time vested restricted stock units to its non-employee directors and certain officers of the Company with vesting terms ranging from 2 to 5 years. The total share-based compensation expense to be recognized for these awards is determined based on the market price of the Company’s common stock at the grant date applied to the total number of units awarded and is amortized over the vesting period. Stock compensation expense related to time vested restricted stock and restricted stock units in the accompanying consolidated statements of income was $0.2 million for the three months ended March 31, 2019 and 2018 . At March 31, 2019 , there was $3.7 million of unrecognized compensation cost related to time vested restricted stock and restricted stock units that is expected to be recognized over a weighted average period of 3.79 years . The restricted stock and restricted stock unit activity is shown below for the periods presented. Three months ended March 31, 2019 2018 Shares Weighted Average Grant Date Fair Value Shares Weighted Average Grant Date Fair Value Balance at beginning of period 135,848 $ 20.47 112,688 $ 17.28 Granted 76,374 24.46 59,093 24.33 Forfeited (180 ) 22.30 (1,147 ) 19.06 Earned and issued (34,871 ) 20.34 (23,342 ) 17.53 Balance at end of period 177,171 $ 22.21 147,292 $ 20.06

DERIVATIVE FINANCIAL INSTRUMENT

DERIVATIVE FINANCIAL INSTRUMENTS	3 Months Ended
	Mar. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVE FINANCIAL INSTRUMENTS	DERIVATIVE FINANCIAL INSTRUMENTS The Company currently holds interest rate swap contracts to manage exposure against the variability in the expected future cash flows (future interest payments) attributable to changes in the 1-month LIBOR associated with the forecasted issuances of 1-month fixed rate debt arising from a rollover strategy. The maximum length of time over which the Company is currently hedging its exposure to the variability in future cash flows for forecasted transactions is approximately 1.4 years . The total notional amount of the derivative contracts is $50.0 million . These derivative contracts are currently between the Company and a single counterparty. To mitigate credit risk, securities are pledged to the Company by the counterparty in an amount greater than or equal to the gain position of the derivative contracts. For the three months ended March 31, 2019 , a loss of $0.2 million has been recognized in “Other comprehensive income” in the accompanying consolidated statements of comprehensive income for the change in fair value of the interest rate swaps compared to a gain of $0.3 million recognized for the three months ended March 31, 2018 . The swap contracts had a fair value of $0.4 million at March 31, 2019 and have been recorded in “Other assets” in the accompanying consolidated balance sheet. The accumulated gain of $0.3 million included in “Accumulated other comprehensive loss” in the accompanying consolidated balance sheet would be reclassified to current earnings if the hedge transactions become probable of not occurring. The Company expects the hedges to remain fully effective during the remaining term of the swap contracts.

FAIR VALUES OF FINANCIAL INSTRU

FAIR VALUES OF FINANCIAL INSTRUMENTS	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
FAIR VALUES OF FINANCIAL INSTRUMENTS	FAIR VALUES OF FINANCIAL INSTRUMENTS In accordance with FASB ASC Topic 820, Fair Value Measurement and Disclosure (“ASC 820”), disclosure of fair value information about financial instruments, whether or not recognized in the balance sheet, is required. The fair value of a financial instrument is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date under current market conditions. Fair value is best determined based upon quoted market prices, or exit prices. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows, and the fair value estimates may not be realized in an immediate settlement of the instruments. Accordingly, the aggregate fair value amounts presented do not represent the underlying value of the Company. If there has been a significant decrease in the volume and level of activity for the asset or liability, a change in valuation technique or the use of multiple valuation techniques may be appropriate. In such instances, determining the price at which willing market participants would transact at the measurement date under current market conditions depends on the facts and circumstances and requires use of significant judgment. The fair value is a reasonable point within the range that is most representative of fair value under current market conditions. Fair Value Hierarchy In accordance with ASC 820, the Company groups its 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. Level 1 – Valuation is based upon quoted prices for identical assets or liabilities traded in active markets. Level 2 – Valuation is based upon observable inputs other than quoted prices included in level 1, such as quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data. Level 3 – Valuation is based upon unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes certain pricing models, discounted cash flow methodologies, and similar techniques that use significant unobservable inputs. A financial instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The following methods and assumptions were used by the Company in estimating fair value disclosures for financial instruments: Cash and Due from Banks – For these short-term instruments, fair value is the carrying value. Cash and due from banks is classified in level 1 of the fair value hierarchy. Federal Funds Sold – The fair value is the carrying value. The Company classifies these assets in level 1 of the fair value hierarchy. Investment Securities and Equity Securities – Where quoted prices are available in an active market, the Company classifies the securities within level 1 of the valuation hierarchy. Securities are defined as both long and short positions. Level 1 securities include exchange-traded equity securities. If quoted market prices are not available, the Company estimates fair values using pricing models and discounted cash flows that consider standard input factors such as observable market data, benchmark yields, interest rate volatilities, broker/dealer quotes, and credit spreads. Examples of such instruments, which would generally be classified within level 2 of the valuation hierarchy if observable inputs are available, include obligations of U.S. government agencies and corporations, obligations of state and political subdivisions, corporate bonds, residential mortgage-backed securities, commercial mortgage-backed securities, and other equity securities. In certain cases where there is limited activity or less transparency around inputs to the valuation, the Company classifies those securities in level 3. At March 31, 2019 and 2018, the majority of our level 3 investments was obligations of state and political subdivisions. The Company estimated the fair value of these level 3 investments using an option-adjusted discounted cash flow model which is based on readily traded comparable municipal credits and current spreads to the yield curves, adjusted for illiquidity of the local municipal market and sinking funds, if applicable. Loans – The fair value of portfolio loans, net is determined using an exit price methodology. The exit price methodology continues to be based on a discounted cash flow analysis, in which projected cash flows are based on contractual cash flows adjusted for prepayments for certain loan types (e.g. residential mortgage loans and multifamily loans) and the use of a discount rate based on expected relative risk of the cash flows. The discount rate selected considers loan type, maturity date, a liquidity premium, cost to service, and cost of capital, which is a level 3 fair value estimate. Deposit Liabilities – The fair values disclosed for noninterest-bearing demand deposits are, by definition, equal to the amount payable on demand at the reporting date (that is, their carrying amounts). These noninterest-bearing deposits are classified in level 2 of the fair value hierarchy. All interest-bearing deposits are classified in level 3 of the fair value hierarchy. The carrying amounts of variable-rate (for example interest-bearing checking, savings, and money market accounts), fixed-term money market accounts, and certificates of deposit approximate their fair values at the reporting date. Fair values for fixed-rate certificates of deposit are estimated using a discounted cash flow calculation that applies market interest rates on comparable instruments to a schedule of aggregated expected monthly maturities on time deposits. Short-Term Borrowings – The carrying amounts of federal funds purchased, borrowings under repurchase agreements, and other short-term borrowings approximate their fair values. The Company classifies these borrowings in level 2 of the fair value hierarchy. Long-Term Borrowings, including Junior Subordinated Debt Securities – The fair values of long-term borrowings are estimated using discounted cash flow analyses based on the Company’s current incremental borrowing rates for similar types of borrowing arrangements. The fair value of the Company’s long-term debt is therefore classified in level 3 in the fair value hierarchy. Subordinated Debt Securities – The fair value of subordinated debt is estimated based on current market rates on similar debt in the market. The Company classifies this debt in level 2 of the fair value hierarchy. Derivative Financial Instruments – The fair value for interest rate swap agreements is based upon the amounts required to settle the contracts. These derivative instruments are classified in level 2 of the fair value hierarchy. Fair Value of Assets and Liabilities Measured on a Recurring Basis Assets and liabilities measured at fair value on a recurring basis are summarized in the table below as of the dates indicated (dollars in thousands). Estimated Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) March 31, 2019 Assets: Obligations of U.S. government agencies and corporations $ 7,260 $ — $ 7,260 $ — Obligations of state and political subdivisions 31,510 — 12,609 18,901 Corporate bonds 18,352 — 17,025 1,327 Residential mortgage-backed securities 146,755 — 146,755 — Commercial mortgage-backed securities 60,380 — 60,380 — Equity securities 1,871 1,871 — — Derivative financial instruments 411 — 411 — Total assets $ 266,539 $ 1,871 $ 244,440 $ 20,228 December 31, 2018 Assets: Obligations of U.S. government agencies and corporations $ 7,870 $ — $ 7,870 $ — Obligations of state and political subdivisions 33,986 — 15,178 18,808 Corporate bonds 15,509 — 14,174 1,335 Residential mortgage-backed securities 134,927 — 134,927 — Commercial mortgage-backed securities 56,689 — 56,689 — Equity securities 1,699 1,699 — — Derivative financial instruments 622 — 622 — Total assets $ 251,302 $ 1,699 $ 229,460 $ 20,143 The Company reviews fair value hierarchy classifications on a quarterly basis. Changes in the Company’s ability to observe inputs to the valuation may cause reclassification of certain assets or liabilities within the fair value hierarchy. The tables below provide a reconciliation for assets measured at fair value on a recurring basis using significant unobservable inputs, or level 3 inputs, for the three months ended March 31, 2019 and March 31, 2018 (dollars in thousands). Obligations of State and Political Subdivisions Corporate Bonds Total Balance at December 31, 2018 $ 18,808 $ 1,335 $ 20,143 Realized gains (losses) included in earnings — — — Unrealized gains (losses) included in other comprehensive income 116 (8 ) 108 Purchases — — — Sales — — — Maturities, prepayments, and calls (23 ) (23 ) Transfers into level 3 — — — Transfers out of level 3 — — — Balance at March 31, 2019 $ 18,901 $ 1,327 $ 20,228 Obligations of State and Corporate Bonds Total Balance at December 31, 2017 $ 19,543 $ 1,325 $ 20,868 Realized gains (losses) included in earnings — — — Unrealized (losses) gains included in other comprehensive income (328 ) 19 (309 ) Purchases — — — Sales — — — Transfers into level 3 — — — Transfers out of level 3 — — — Balance at March 31, 2018 $ 19,215 $ 1,344 $ 20,559 There were no liabilities measured at fair value on a recurring basis using level 3 inputs at March 31, 2019 and December 31, 2018 . For the three months ended March 31, 2019 and 2018 , there were no gains or losses included in earnings related to the change in fair value of the assets measured on a recurring basis using significant unobservable inputs held at the end of the period. Fair Value of Assets and Liabilities Measured on a Nonrecurring Basis Certain financial assets and financial liabilities are measured at fair value on a nonrecurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances (for example, when there is evidence of impairment). Quantitative information about assets measured at fair value on a nonrecurring basis based on significant unobservable inputs (level 3) is summarized below as of the dates indicated; there were no liabilities measured on a nonrecurring basis at March 31, 2019 or December 31, 2018 (dollars in thousands). Estimated Valuation Technique Unobservable Inputs Range of Discounts Weighted Average Discount March 31, 2019 Impaired loans $ 148 Discounted cash flows, Underlying collateral value Collateral discounts and estimated costs to sell 0% - 100% 29% December 31, 2018 Impaired loans $ 383 Discounted cash flows, Underlying collateral value Collateral discounts and estimated costs to sell 0% - 100% 15% Other real estate owned 3,270 Underlying collateral value, Third party appraisals Collateral discounts and discount rates 15% 15% The estimated fair values of the Company’s financial instruments are summarized in the table below as of the dates indicated (dollars in thousands). March 31, 2019 Carrying Amount Estimated Fair Value Level 1 Level 2 Level 3 Financial assets: Cash and due from banks $ 70,041 $ 70,041 $ 70,041 $ — $ — Federal funds sold 2,362 2,362 2,362 — — Investment securities 280,073 279,984 — 249,198 30,786 Equity securities 14,392 14,392 1,871 12,521 — Loans, net of allowance 1,485,277 1,456,083 — — 1,456,083 Derivative financial instruments 411 411 — 411 — Financial liabilities: Deposits, noninterest-bearing $ 285,811 $ 285,811 $ — $ 285,811 $ — Deposits, interest-bearing 1,246,982 1,210,389 — — 1,210,389 FHLB short-term advances and repurchase agreements 184,818 184,818 — 184,818 — FHLB long-term advances 2,493 2,104 — — 2,104 Junior subordinated debt 5,858 7,599 — — 7,599 Subordinated debt 18,600 19,422 — 19,422 — December 31, 2018 Carrying Amount Estimated Fair Value Level 1 Level 2 Level 3 Financial assets: Cash and due from banks $ 17,134 $ 17,134 $ 17,134 $ — $ — Federal funds sold 6 6 6 — — Investment securities 265,047 264,786 — 234,053 30,733 Equity securities 13,562 13,562 1,699 11,863 — Loans, net of allowance 1,391,371 1,374,292 — — 1,374,292 Derivative financial instruments 622 622 — 622 — Financial liabilities: Deposits, noninterest-bearing $ 217,457 $ 217,457 $ — $ 217,457 $ — Deposits, interest-bearing 1,144,274 1,095,639 — — 1,095,639 FHLB short-term advances and repurchase agreements 205,399 205,399 — 205,399 — FHLB long-term advances 3,090 2,712 — — 2,712 Junior subordinated debt 5,845 7,420 — — 7,420 Subordinated debt 18,600 19,187 — 19,187 —

INCOME TAXES

INCOME TAXES	3 Months Ended
	Mar. 31, 2019
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES The expense for income taxes and the effective tax rate included in the consolidated statements of income are shown in the table below for the periods presented (dollars in thousands). Three months ended March 31, 2019 2018 Income tax expense $ 952 $ 1,341 Effective tax rate 19.6 % 35.8 % For the three months ended March 31, 2019, the effective tax rate differs from the statutory tax rate of 21%, effective January 1, 2018, due to tax exempt interest income earned on certain investment securities. The Company’s income tax expense for the three months ended March 31, 2018 includes a $0.6 million charge directly related to the revaluation of its deferred tax assets and liabilities as a result of the Tax Act, which is the primary reason the effective tax rate differs from the statutory rate of 21% .

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	3 Months Ended
	Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Unfunded Commitments The Company is a party to financial instruments with off-balance-sheet risk entered into in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit consisting of loan commitments and standby letters of credit, which are not included in the accompanying financial statements. Such financial instruments are recorded in the financial statements when they become payable. The credit risk associated with these commitments is evaluated in a manner similar to the allowance for loan losses. The reserve for unfunded loan commitments is included in other liabilities in the consolidated balance sheets and was $85,000 and $66,000 at March 31, 2019 and December 31, 2018 , respectively. Commitments to extend credit are agreements to lend money with fixed expiration dates or termination clauses. The Company applies the same credit standards used in the lending process when extending these commitments, and periodically reassesses the customer’s creditworthiness through ongoing credit reviews. Since some commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. Collateral is obtained based on the Company’s assessment of the transaction. Essentially all standby letters of credit issued have expiration dates within one year. The table below shows the approximate amounts of the Company’s commitments to extend credit as of the dates presented (dollars in thousands). March 31, 2019 December 31, 2018 Commitments to extend credit Loan commitments $ 269,707 $ 263,002 Standby letters of credit 11,127 11,114 Additionally, at March 31, 2019 , the Company had unfunded commitments of $0.1 million for its investment in Small Business Investment Company qualified funds.

LEASES

LEASES	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
LEASES	LEASES On January 1, 2019, the Company adopted ASU 2016-02, Leases, as further explained in Note 1, Summary of Significant Accounting Policies. The Company’s primary leasing activities relate to certain real estate leases entered into in support of the Company’s branch operations. Prior to the Mainland acquisition on March 1, 2019, the Company leased only one of its properties, a future branch location expected to be opened in 2019. With the Mainland acquisition, the Company increased its branch network by three branches, of which two are operated under lease agreements. The Company’s branch locations operated under lease agreements have all been designated as operating leases. The Company does not lease equipment under operating leases, nor does it have leases designated as finance leases. The Company determines if an arrangement is a lease at inception. Operating leases, with the exception of short-term leases, are included in operating lease right-of-use (“ROU”) assets and operating lease liabilities in Bank premises and equipment, net and Accrued taxes and other liabilities, respectively, in the consolidated balance sheets. ROU assets represent the right to use an underlying asset for the lease term and lease liabilities represent the obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at the commencement date based on the present value of lease payments over the lease term. As the Company’s leases do not provide an implicit rate, the Company uses its incremental borrowing rate based on the information available at the commencement date in determining the present value of lease payments. The operating lease ROU asset also includes any lease pre-payments made and excludes lease incentives. The Company’s lease terms may include options to extend or terminate the lease. When it is reasonably certain that the Company will exercise an option to extend a lease, the extension is included in the lease term when calculating the present value of lease payments. Lease expense for lease payments is recognized on a straight-line basis over the lease term. The Company has lease agreements with lease and non-lease components, which the Company has elected to account for separately, as the non-lease component amounts are readily determinable. No operating lease expense was recorded in the three months ended March 31, 2018 as the Company had no operating leases until December 31, 2018. Quantitative information regarding the Company’s operating leases is presented below as of and for three months ended March 31, 2019 (dollars in thousands). Total operating lease cost $ 44.0 Weighted-average remaining lease term (in years) 11.3 Weighted-average discount rate 3.5 % As of March 31, 2019 the Company’s lease ROU assets and related lease liabilities were $2.5 million , and have remaining terms ranging from 5 to 13 years , including extension options if the Company is reasonably certain they will be exercised. Future minimum lease payments due under non-cancelable operating leases at March 31, 2019 are presented below (dollars in thousands). 2019 $ 204 2020 289 2021 294 2022 299 2023 297 Thereafter 1,672 Total $ 3,055 At March 31, 2019 , the Company had not entered into any material leases that have not yet commenced.

SUMMARY OF SIGNIFICANT ACCOUN_2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited consolidated financial statements of Investar Holding Corporation (the “Company”) have been prepared in accordance with United States generally accepted accounting principles (“GAAP”) for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include information or footnotes necessary for a complete presentation of financial position, results of operations, and cash flows in conformity with GAAP. However, in the opinion of management, all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the financial statements have been included. The results of operations for the three month period ended March 31, 2019 is not necessarily indicative of the results that may be expected for the entire fiscal year. These statements should be read in conjunction with the Company’s audited consolidated financial statements for the year ended December 31, 2018 , including the notes thereto, which were included as part of the Company’s Annual Report on Form 10-K filed with the Securities and Exchange Commission (“SEC”) on March 15, 2019.
Nature of Operations	Nature of Operations Investar Holding Corporation, headquartered in Baton Rouge, Louisiana, provides full banking services, excluding trust services, through its wholly-owned banking subsidiary, Investar Bank (the “Bank”), a Louisiana-chartered bank. The Company’s primary markets are southeast Louisiana and southeast Texas. At March 31, 2019 , the Company operated 21 full service branches located in Louisiana and 3 full service branches located in Texas, and had 280 employees.
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiary, the Bank. All significant intercompany accounts and transactions have been eliminated in consolidation.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements as well as the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates, and such differences could be material. Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for loan losses. While management uses available information to recognize losses on loans, future additions to the allowance may be necessary based on changes in local economic conditions. In addition, regulatory agencies, as an integral part of their examination process, periodically review the Company’s allowance for loan losses. Such agencies may require the Company to recognize additions to the allowance based on their judgments about information available to them at the time of their examination. Because of these factors, it is reasonably possible that the allowance for loan losses may change materially in the near term. However, the amount of the change that is reasonably possible cannot be estimated. Other estimates that are susceptible to significant change in the near term relate to the determination of other-than-temporary impairments of securities and the fair value of financial instruments.
Investment Securities	Investment Securities The Company’s investments in securities are accounted for in accordance with applicable guidance contained in the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”), which requires the classification of securities into one of the following categories: • Securities to be held to maturity (“HTM”): bonds, notes, and debentures for which the Company has the positive intent and ability to hold to maturity are reported at cost, adjusted for premiums and discounts that are recognized in interest income using the interest method over the period to maturity. • Securities available for sale (“AFS”): available for sale securities consist of bonds, notes, and debentures that are available to meet the Company’s operating needs. These securities are reported at fair value. Unrealized holding gains and losses, net of tax, on AFS debt securities are reported as a net amount in other comprehensive income. Purchase premiums and discounts are recognized in interest income using the interest method over the terms of the securities. Realized gains and losses on the sale of debt securities are determined using the specific-identification method. The Company follows FASB guidance related to the recognition and presentation of other-than-temporary impairment. The guidance specifies that if an entity does not have the intent to sell a debt security and it is not more likely than not that the Company will be required to sell the security prior to recovery, the security would not be considered other-than-temporarily impaired unless there is a credit loss. When an entity does not intend to sell the security, and it is more likely than not that the entity will not have to sell the security before recovery of its cost basis, it will recognize the credit component of an other-than-temporary impairment of a debt security in earnings and the remaining portion in other comprehensive income.
Loans	Loans The Company’s loan portfolio categories include real estate, commercial and consumer loans. Real estate loans are further categorized into construction and development, 1-4 family residential, multifamily, farmland and commercial real estate loans. The consumer loan category includes loans originated through indirect lending. Indirect lending, which is lending initiated through third-party business partners, is largely comprised of loans made through automotive dealerships. Loans for which management has the intent and ability to hold for the foreseeable future, or until maturity or pay-off are stated at unpaid principal balances, adjusted by an allowance for loan losses. Interest on loans is calculated by using the simple interest method on daily balances of the principal amount outstanding. Loans are ordinarily placed on nonaccrual when a loan is specifically determined to be impaired or when principal or interest is delinquent for 90 days or more; however, management may elect to continue the accrual when the estimated net realizable value of collateral is sufficient to cover the principal balance and the accrued interest. Any unpaid interest previously accrued on nonaccrual loans is reversed from income. Interest income, generally, is not recognized on specific impaired loans unless the likelihood of further loss is remote. Interest payments received on such loans are applied as a reduction of the loan principal balance. Interest income on other nonaccrual loans is recognized only to the extent of interest payments received. A loan may be returned to accrual status when all the principal and interest amounts contractually due are brought current and future principal and interest amounts contractually due are reasonably assured, which is typically evidenced by a sustained period of repayment performance by the borrower. The Company considers a loan to be impaired when, based upon current information and events, it believes it is probable that the Company will be unable to collect all amounts due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. The Company’s impaired loans include troubled debt restructurings and performing and non-performing loans for which full payment of principal or interest is not expected. Large groups of smaller balance homogeneous loans are collectively evaluated for impairment. The Company calculates an allowance required for impaired loans based on the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s observable market price or the fair value of its collateral. If the recorded investment in the impaired loan exceeds the measure of fair value, a valuation allowance is required as a component of the allowance for loan losses. Changes to the valuation allowance are recorded as a component of the provision for loan losses. The Company follows the FASB accounting guidance on sales of financial assets, which includes participating interests in loans. For loan participations that are structured in accordance with this guidance, the sold portions are recorded as a reduction of the loan portfolio. Loan participations that do not meet the criteria are accounted for as secured borrowings.
Allowance for Loan Losses	Allowance for Loan Losses The adequacy of the allowance for loan losses is determined in accordance with GAAP. The allowance for loan losses is estimated through a provision for loan losses charged to earnings. Loan losses are charged against the allowance when management believes the loan balance is uncollectable. Subsequent recoveries, if any, are credited to the allowance. The allowance is an amount that management believes will be adequate to absorb probable losses inherent in the loan portfolio as of the balance sheet date based on evaluations of the collectability of loans and prior loan loss experience. The evaluations take into consideration such factors as changes in the nature and volume of the loan portfolio, overall portfolio quality, review of specific problem loans, and current economic conditions that may affect the borrower’s ability to pay. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available. Allowances for impaired loans are generally determined based on collateral values or the present value of estimated cash flows. Credits deemed uncollectible are charged to the allowance. Provisions for loan losses and recoveries on loans previously charged off are added to the allowance. Past due status is determined based on contractual terms. The allowance consists of allocated and general components. The allocated component relates to loans that are classified as impaired. For loans that are classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The general component covers non-classified loans and is based on historical loss experience adjusted for qualitative factors. Based on management’s review and observations made through qualitative review, management may apply qualitative adjustments to determine loss estimates at a group and/or portfolio segment level as deemed appropriate. Management has an established methodology to determine the adequacy of the allowance for loan losses that assesses the risks and losses inherent in its portfolio and portfolio segments. The Company utilizes an internally developed model that requires judgment to determine the estimation method that fits the credit risk characteristics of the loans in its portfolio and portfolio segments. Qualitative and environmental factors that may not be directly reflected in quantitative estimates include: asset quality trends, changes in loan concentrations, new products and process changes, changes and pressures from competition, changes in lending policies and underwriting practices, trends in the nature and volume of the loan portfolio, changes in experience and depth of lending staff and management and national and regional economic trends. Changes in these factors are considered in determining changes in the allowance for loan losses. The impact of these factors on the Company’s qualitative assessment of the allowance for loan losses can change from period to period based on management’s assessment of the extent to which these factors are already reflected in historic loss rates. The uncertainty inherent in the estimation process is also considered in evaluating the allowance for loan losses. In the ordinary course of business, the Bank enters into commitments to extend credit and standby letters of credit. Such financial instruments are recorded in the financial statements when they become payable. The credit risk associated with these commitments is evaluated in a manner similar to the allowance for loan losses. The reserve for unfunded lending commitments is included in accrued taxes and other liabilities in the consolidated balance sheet.
Acquisition Accounting	Acquisition Accounting Acquisitions are accounted for under the purchase method of accounting. Purchased assets and assumed liabilities are recorded at their respective acquisition date fair values, and identifiable intangible assets are recorded at fair value. If the consideration given exceeds the fair value of the net assets received, goodwill is recognized. If the fair value of the net assets received exceeds the consideration given, a bargain purchase gain is recognized. Fair values are subject to refinement for up to one year after the closing date of an acquisition as information relative to closing date fair values becomes available. Purchased loans acquired in a business combination are recorded at their estimated fair value as of the acquisition date. The fair value of loans acquired is determined using a discounted cash flow model based on assumptions regarding the amount and timing of principal and interest prepayments, estimated payments, estimated default rates, estimated loss severity in the event of defaults, and current market rates. Estimated credit losses are included in the determination of fair value; therefore, an allowance for loan losses is not recorded on the acquisition date. The fair value adjustment is amortized over the life of the loan using the effective interest method, except for those loans accounted for under ASC Topic 310-30, discussed below. The Company accounts for acquired impaired loans under ASC Topic 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality (“ASC 310-30”). An acquired loan is considered impaired when there is evidence of credit deterioration since origination and it is probable, at the date of acquisition, that we will be unable to collect all contractually required payments. ASC 310-30 prohibits the carryover of an allowance for loan losses for acquired impaired loans. Over the life of the acquired loans, we continually estimate the cash flows expected to be collected on individual loans or on pools of loans sharing common risk characteristics. As of the end of each fiscal quarter, we evaluate the present value of the acquired loans using the effective interest rates. For any increases in cash flows expected to be collected, we adjust the amount of accretable yield recognized on a prospective basis over the loan’s or pool’s remaining life, while we recognize a provision for loan loss in the consolidated statement of operations if the cash flows expected to be collected have decreased.
Servicing Rights	Servicing Rights Primary servicing rights represent the Company’s right to service consumer automobile loans for third-party whole-loan sales and loans sold as participations. Primary servicing involves the collection of payments from individual borrowers and the distribution of these payments to the investors. The Company capitalizes the value expected to be realized from performing specified automobile servicing activities for others as automobile servicing rights (“ASRs”) when the expected future cash flows from servicing are projected to be more than adequate compensation for such activities. These capitalized servicing rights are purchased or retained upon sale of consumer automobile loans. The Company measures all consumer automobile servicing assets and liabilities at fair value. The Company defines servicing rights based on both the availability of market inputs and the manner in which the Company manages the risks of servicing assets and liabilities. The Company leverages all available relevant market data to determine the fair value of recognized servicing assets and liabilities. The Company calculates the fair value of ASRs using various assumptions including future cash flows, market discount rates, expected prepayments, servicing costs and other factors. A significant change in prepayments of loans in the servicing portfolio could result in significant changes in the valuation adjustments, thus creating potential volatility in the carrying amount of ASRs.
Reclassifications	Reclassifications Certain reclassifications have been made to the 2018 financial statements to be consistent with the 2019 presentation, if applicable.
Concentrations of Credit Risk	Concentrations of Credit Risk The Company’s loan portfolio consists of the various types of loans described in Note 5. Loans and Allowance for Loan Losses. Real estate or other assets secure most loans. The majority of loans have been made to individuals and businesses in the Company’s market of southeast Louisiana. Customers are dependent on the condition of the local economy for their livelihoods and servicing their loan obligations. The Company does not have any significant concentrations in any one industry or individual customer.
Tax Cuts and Jobs Act	Tax Cuts and Jobs Act Public law No. 115-97, known as the Tax Cuts and Jobs Act (the “Tax Act”), enacted on December 22, 2017, reduced the U.S. federal corporate tax rate from 35% to 21% effective January 1, 2018. Also on December 22, 2017, the SEC issued Staff Accounting Bulletin No. 118 (“SAB 118”), which provides guidance on accounting for tax effects of the Tax Act. SAB 118 provided a measurement period of up to one year from the enactment date to complete the accounting. Any adjustments during the measurement period were included in net earnings from continuing operations as an adjustment to income tax expense in the reporting period when such adjustments were determined.
Accounting Standards Adopted in 2019 and Recent Accounting Pronouncements	Accounting Standards Adopted in 2019 In June 2018, the FASB issued ASU 2018-07, Compensation - Stock Compensation (Topic 718) , which expands the scope of Topic 718 to include share-based payments issued to nonemployees for goods or services and supersedes Subtopic 505-50, “Equity – Equity-Based Payments to Non-Employees.” The Company adopted ASU 2018-07 on January 1, 2019. The adoption of ASU 2018-07 did not have a material impact on the Company’s consolidated financial statements. In August 2017, the FASB issued ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities , which amends the hedge accounting model in Topic 815 to enable entities to better portray the economics of their risk management activities in the financial statements and enhance the transparency and understandability of hedge results. The amendments expand an entity’s ability to hedge nonfinancial and financial risk components and reduce complexity in fair value hedges of interest rate risk. The guidance eliminates the requirement to separately measure and report hedge ineffectiveness and generally requires the entire change in the fair value of a hedging instrument to be presented in the same income statement line as the hedged item. The guidance also eases certain documentation and assessment requirements and modifies the accounting for components excluded from the assessment of hedge effectiveness. This amended guidance was adopted on January 1, 2019, and, given the current level of derivatives designated as hedges, did not have a material impact on our consolidated financial statements. In March 2017, the FASB issued ASU 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20), Premium Amortization on Purchased Callable Debt Securities . The amendments in the ASU shorten the amortization period for certain callable debt securities held at a premium. Specifically, the amendments require the premium to be amortized to the earliest call date. The amendments do not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. The Company adopted ASU 2017-08 on January 1, 2019. The adoption of this ASU did not have a material impact on the Company’s consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) . The ASU intends to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities and disclosing key information about leasing arrangements. The ASU requires lessees to recognize the following for all leases (with the exception of short-term leases) at the commencement date: (1) a lease liability, which is a lessees’ obligation to make lease payments arising from a lease, measured on a discounted basis; and (2) 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. Under the new guidance, lessor accounting is largely unchanged. Certain targeted improvements were made to align, where necessary, lessor accounting with the lessee accounting model and Topic 606, Revenue from Contracts with Customers . The new lease guidance simplifies the accounting for sale and leaseback transactions primarily because lessees must recognize lease assets and lease liabilities. Lessees (for capital and operating leases) and lessors (for sales-type, direct financing, and operating leases) may apply a modified retrospective transition approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The modified retrospective approach would not require any transition accounting for leases that expired before the earliest comparative period presented. Lessees and lessors may also elect to apply the amendments in the ASU through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective. The Company adopted the ASU on January 1, 2019, using the modified retrospective approach, and recognized a right-of-use asset and related lease liability of $1.2 million . The Company historically has owned all property and equipment and had entered an operating lease for a future branch location on December 31, 2018. Therefore, the adoption of this ASU did not have a significant impact on the Company’s consolidated financial statements. Recent Accounting Pronouncements FASB ASC Topic 250 “Intangibles - Goodwill and Other - Internal Use Software (Subtopic 250-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract” Update No. 2018-15. In August 2018, the FASB issued ASU 2018-15. This ASU requires an entity in a cloud computing arrangement (i.e., hosting arrangement) that is a service contract to follow the internal-use software guidance in ASC 350-40 to determine which implementation costs to capitalize as assets or expense as incurred. Capitalized implementation costs should be presented in the same line item on the balance sheet as amounts prepaid for the hosted service, if any (generally as an “other asset”). The capitalized costs will be amortized over the term of the hosting arrangement, with the amortization expense being presented in the same income statement line item as the fees paid for the hosted service. ASU 2018-15 is effective for the Company on January 1, 2020. Early adoption is permitted, including adoption in any interim period. The adoption of ASU 2018-15 is not expected to have a material impact on the Company’s consolidated financial statements. FASB ASC Topic 820 “Fair Value Measurement: Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement” Update No. 2018-13. In August 2018, the FASB issued ASU 2018-13, which modifies the disclosure requirements for fair value measurements by removing, modifying, or adding certain disclosures. ASU 2018-13 removes the disclosure requirement detailing the amount of and reasons for transfers between Level 1 and Level 2 and the valuation processes for Level 3 fair value measurements will be removed. In addition, this ASU modifies the disclosure requirement for investments in certain entities that calculate net asset value. Lastly, ASU 2018-13 adds a disclosure requirement for changes in unrealized gains and losses for the period included in other comprehensive income for recurring Level 3 fair value measurements held at the end of the reporting period and the range and weighted average of significant unobservable inputs used to develop Level 3 measurements. ASU 2018-13 is effective for the Company on January 1, 2020. Early adoption is permitted upon the issuance of ASU 2018-13. The removed and modified disclosures will be adopted on a retrospective basis, and the new disclosures will be adopted on a prospective basis. The adoption of ASU 2018-13 is not expected to have a material impact on the Company’s consolidated financial statements. FASB ASC Topic 350 “Intangibles – Goodwill and Other: Simplifying the Test for Goodwill Impairment” Update No. 2017-04. The FASB issued ASU No. 2017-04 in January 2017. The ASU simplifies how an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test. Therefore, any carrying amount which exceeds the reporting unit’s fair value, up to the amount of goodwill recorded, will be recognized as an impairment loss. ASU 2017-04 will be effective for the Company on January 1, 2020. The amendments will be applied prospectively on or after the effective date. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. Based on recent goodwill impairments tests, which did not require the application of Step 2, the Company does not expect the adoption of this ASU to have an immediate impact. FASB ASC Topic 326 “Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments” Update No. 2016-13. The FASB issued ASU No. 2016-13 in June 2016. The ASU requires the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts and requires enhanced disclosures related to the significant estimates and judgments used in estimating credit losses, as well as the credit quality and underwriting standards of an organization’s portfolio. In addition, ASU 2016-13 amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. ASU 2016-13 will be effective for the Company on January 1, 2020. We are currently evaluating the potential impact of ASU 2016-13 on our financial statements. In that regard, we have formed a cross-functional working group, under the direction of our Chief Financial Officer and our Chief Risk Officer. The working group is comprised of individuals from various functional areas including credit, risk management, finance and information technology. We have developed an implementation plan to include assessment of processes, portfolio segmentation, model development, system requirements and the identification of data and resource needs, among other things. We have also selected a third-party vendor solution to assist us in the application of ASU 2016-13. The adoption of ASU 2016-13 is likely to result in an increase in the allowance for loan losses as a result of changing from an “incurred loss” model, which encompasses allowances for current known and inherent losses within the portfolio, to an “expected loss” model, which encompasses allowances for losses expected to be incurred over the life of the portfolio. Furthermore, ASU 2016-13 will necessitate that we establish an allowance for expected credit losses on debt securities. While we are currently unable to reasonably estimate the impact of adopting ASU 2016-13, we expect that the impact of adoption will be significantly influenced by the composition, characteristics and quality of our loan and securities portfolios, as well as the prevailing economic conditions and forecasts, as of the adoption date.

BUSINESS COMBINATIONS (Tables)

BUSINESS COMBINATIONS (Tables)	3 Months Ended
	Mar. 31, 2019
Business Combinations [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The table below shows the allocation of the consideration paid for Mainland’s common equity to the acquired identifiable assets and liabilities assumed and the goodwill generated from the transaction (dollars in thousands). The fair values listed below, primarily related to loans and deferred tax assets and liabilities, are subject to refinement for up to one year after the closing date of the acquisition as additional information becomes available. Purchase price: Stock issued $ 18,637 Fair value of assets acquired: Cash and cash equivalents 38,365 Loans 82,431 Other real estate owned 1,408 Bank premises and equipment 2,550 Core deposit intangible asset 2,439 Other assets 1,210 Total assets acquired 128,403 Fair value of liabilities acquired: Deposits 107,646 Repurchase agreements 4,684 Other liabilities 2,501 Total liabilities assumed 114,831 Fair value of net assets acquired 13,572 Goodwill $ 5,065
Business Acquisition, Pro Forma Information	The following unaudited supplemental pro forma information is presented to show estimated results assuming Mainland was acquired as of January 1, 2018. These unaudited pro forma results are not necessarily indicative of the operating results that the Company would have achieved had it completed the acquisition as of January 1, 2018 and should not be considered representative of future operating results. The pro forma net income for the three months ended March 31, 2019 excludes the tax-affected amount of $1.6 million of acquisition expenses recorded in noninterest expense by the Company and Mainland. Unaudited pro forma for the three months ended March 31, (dollars in thousands) 2019 2018 Interest income $ 21,628 $ 18,604 Noninterest income 1,428 1,150 Net income 3,875 2,710

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings Per Common Share	The following is a summary of the information used in the computation of basic and diluted earnings per share for the three months ended March 31, 2019 and 2018 (in thousands, except share data). Three months ended March 31, 2019 2018 Earnings per common share - basic Net income allocated to common shareholders $ 3,871 $ 2,370 Weighted-average basic shares outstanding 9,675,381 9,513,332 Basic earnings per common share $ 0.40 $ 0.25 Earnings per common share - diluted Net income allocated to common shareholders $ 3,871 $ 2,370 Weighted-average basic shares outstanding 9,675,381 9,513,332 Dilutive effect of securities 95,371 96,271 Total weighted average diluted shares outstanding 9,770,752 9,609,603 Diluted earnings per common share $ 0.40 $ 0.25
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	The weighted average shares that have an antidilutive effect in the calculation of diluted earnings per common share and have been excluded from the computations above are shown below. Three months ended March 31, 2019 2018 Stock options — 8,891 Restricted stock awards 55 32,223 Restricted stock units 44,467 —

INVESTMENT SECURITIES (Tables)

INVESTMENT SECURITIES (Tables)	3 Months Ended
	Mar. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Schedule of Amortized Cost and Approximate Fair Value of Investment Securities Classified as Available for Sale	The amortized cost and approximate fair value of investment securities classified as AFS are summarized below as of the dates presented (dollars in thousands). Amortized Cost Gross Unrealized Gains Gross Fair Value March 31, 2019 Obligations of U.S. government agencies and corporations $ 7,305 $ 27 $ (72 ) $ 7,260 Obligations of state and political subdivisions 31,756 123 (369 ) 31,510 Corporate bonds 18,755 80 (483 ) 18,352 Residential mortgage-backed securities 147,104 757 (1,106 ) 146,755 Commercial mortgage-backed securities 61,061 206 (887 ) 60,380 Total $ 265,981 $ 1,193 $ (2,917 ) $ 264,257 Amortized Cost Gross Gross Fair December 31, 2018 Obligations of U.S. government agencies and corporations $ 7,946 $ 14 $ (90 ) $ 7,870 Obligations of state and political subdivisions 34,875 6 (895 ) 33,986 Corporate bonds 16,166 53 (710 ) 15,509 Residential mortgage-backed securities 136,768 336 (2,177 ) 134,927 Commercial mortgage-backed securities 57,749 108 (1,168 ) 56,689 Total $ 253,504 $ 517 $ (5,040 ) $ 248,981
Schedule of Proceeds from Sale of Investment Securities	Proceeds from sales of investment securities AFS and gross gains and losses are summarized below for the periods presented (dollars in thousands). Three months ended March 31, 2019 2018 Proceeds from sale $ 393 $ — Gross gains $ 2 $ — Gross losses $ — $ —
Schedule of Amortized Cost and Approximate Fair Value of Investment Securities Classified as Held to Maturity	The amortized cost and approximate fair value of investment securities classified as HTM are summarized below as of the dates presented (dollars in thousands). Amortized Cost Gross Gross Fair March 31, 2019 Obligations of state and political subdivisions $ 10,586 $ 5 $ (33 ) $ 10,558 Residential mortgage-backed securities 5,230 — (61 ) 5,169 Total $ 15,816 $ 5 $ (94 ) $ 15,727 Amortized Cost Gross Gross Fair December 31, 2018 Obligations of state and political subdivisions $ 10,699 $ 2 $ (111 ) $ 10,590 Residential mortgage-backed securities 5,367 — (152 ) 5,215 Total $ 16,066 $ 2 $ (263 ) $ 15,805
Schedule of Unrealized Losses and Fair Value by Investment Category for Securities Available for Sale	The number of AFS securities, fair value, and unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, are summarized below as of the dates presented (dollars in thousands). Less than 12 Months 12 Months or More Total Count Fair Value Unrealized Losses Fair Value Unrealized Fair Value Unrealized March 31, 2019 Obligations of U.S. government agencies and corporations 11 $ — $ — $ 4,497 $ (72 ) $ 4,497 $ (72 ) Obligations of state and political subdivisions 39 5,379 (33 ) 15,497 (336 ) 20,876 (369 ) Corporate bonds 26 5,209 (118 ) 7,220 (365 ) 12,429 (483 ) Residential mortgage-backed securities 165 4,020 (5 ) 82,591 (1,101 ) 86,611 (1,106 ) Commercial mortgage-backed securities 91 3,188 (20 ) 39,084 (867 ) 42,272 (887 ) Total 332 $ 17,796 $ (176 ) $ 148,889 $ (2,741 ) $ 166,685 $ (2,917 ) Less than 12 Months 12 Months or More Total Count Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized December 31, 2018 Obligations of U.S. government agencies and corporations 15 $ 469 $ — $ 5,304 $ (90 ) $ 5,773 $ (90 ) Obligations of state and political subdivisions 63 13,716 (330 ) 19,270 (565 ) 32,986 (895 ) Corporate bonds 27 6,793 (225 ) 5,763 (485 ) 12,556 (710 ) Residential mortgage-backed securities 193 24,868 (245 ) 79,517 (1,932 ) 104,385 (2,177 ) Commercial mortgage-backed securities 94 5,156 (42 ) 39,560 (1,126 ) 44,716 (1,168 ) Total 392 $ 51,002 $ (842 ) $ 149,414 $ (4,198 ) $ 200,416 $ (5,040 )
Schedule of Unrealized Losses and Fair Value by Investment Category for Securities Held to Maturity	The number of HTM securities, fair value, and unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, are summarized below as of the dates presented (dollars in thousands). Less than 12 Months 12 Months or More Total Count Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized March 31, 2019 Obligations of state and political subdivisions 1 $ — $ — $ 5,433 $ (33 ) $ 5,433 $ (33 ) Residential mortgage-backed securities 9 — — 5,169 (61 ) 5,169 (61 ) Total 10 $ — $ — $ 10,602 $ (94 ) $ 10,602 $ (94 ) Less than 12 Months 12 Months or More Total Count Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized December 31, 2018 Obligations of state and political subdivisions 1 $ — $ — $ 5,468 $ (111 ) $ 5,468 $ (111 ) Residential mortgage-backed securities 9 1,761 (35 ) 3,454 (117 ) 5,215 (152 ) Total 10 $ 1,761 $ (35 ) $ 8,922 $ (228 ) $ 10,683 $ (263 )
Schedule of Weighted Average Tax Equivalent Yield, Amortized Cost and Approximate Fair Value of Investment Debt Securities by Contractual Maturity (Including Mortgage-backed Securities)	The amortized cost and approximate fair value of debt securities, by contractual maturity (including mortgage-backed securities), are shown below as of the dates presented (dollars in thousands). Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Securities Available For Sale Securities Held To Maturity Amortized Cost Fair Value Amortized Fair March 31, 2019 Due within one year $ 3,314 $ 3,312 $ 755 $ 756 Due after one year through five years 11,910 11,895 3,405 3,408 Due after five years through ten years 52,277 51,713 960 961 Due after ten years 198,480 197,337 10,696 10,602 Total debt securities $ 265,981 $ 264,257 $ 15,816 $ 15,727 Securities Available For Sale Securities Held To Maturity Amortized Fair Amortized Fair December 31, 2018 Due within one year $ 3,734 $ 3,730 $ 755 $ 755 Due after one year through five years 10,681 10,600 3,405 3,406 Due after five years through ten years 44,255 43,460 960 961 Due after ten years 194,834 191,191 10,946 10,683 Total debt securities $ 253,504 $ 248,981 $ 16,066 $ 15,805

LOANS AND ALLOWANCE FOR LOAN _2

LOANS AND ALLOWANCE FOR LOAN LOSSES (Tables)	3 Months Ended
	Mar. 31, 2019
Receivables [Abstract]
Schedule of Loan Portfolio Excluding Loans Held for Sale	The Company’s loan portfolio consists of the following categories of loans as of the dates presented (dollars in thousands). March 31, 2019 December 31, 2018 Construction and development $ 171,483 $ 157,946 1-4 Family 299,061 287,137 Multifamily 57,487 50,501 Farmland 24,457 21,356 Commercial real estate 646,745 627,004 Total mortgage loans on real estate 1,199,233 1,143,944 Commercial and industrial 255,476 210,924 Consumer 40,210 45,957 Total loans $ 1,494,919 $ 1,400,825
Schedule of Aging Analysis of Loans	The table below provides an analysis of the aging of loans as of the dates presented (dollars in thousands). March 31, 2019 Accruing Current 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due Nonaccrual Total Past Due & Nonaccrual Acquired Impaired Loans Total Loans Construction and development $ 170,870 $ 154 $ — $ — $ 448 $ 602 $ 11 $ 171,483 1-4 Family 296,218 1,263 10 — 1,095 2,368 475 299,061 Multifamily 57,378 — — — 109 109 — 57,487 Farmland 22,193 — — — — — 2,264 24,457 Commercial real estate 643,889 — — — 1,291 1,291 1,565 646,745 Total mortgage loans on real estate 1,190,548 1,417 10 — 2,943 4,370 4,315 1,199,233 Commercial and industrial 253,316 871 17 — 9 897 1,263 255,476 Consumer 39,143 209 31 — 784 1,024 43 40,210 Total loans $ 1,483,007 $ 2,497 $ 58 $ — $ 3,736 $ 6,291 $ 5,621 $ 1,494,919 December 31, 2018 Accruing Current 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due Nonaccrual Total Past Due & Nonaccrual Acquired Impaired Loans Total Loans Construction and development $ 157,202 $ 175 $ — $ — $ 556 $ 731 $ 13 $ 157,946 1-4 Family 284,205 1,101 41 — 1,300 2,442 490 287,137 Multifamily 50,392 109 — — — 109 — 50,501 Farmland 19,092 — — — — — 2,264 21,356 Commercial real estate 624,244 66 — — 683 749 2,011 627,004 Total mortgage loans on real estate 1,135,135 1,451 41 — 2,539 4,031 4,778 1,143,944 Commercial and industrial 209,399 221 45 — 64 330 1,195 210,924 Consumer 44,493 375 51 — 994 1,420 44 45,957 Total loans $ 1,389,027 $ 2,047 $ 137 $ — $ 3,597 $ 5,781 $ 6,017 $ 1,400,825
Summary of the Company's Loan Portfolio by Category and Credit Quality Indicator	The table below presents the Company’s loan portfolio by category and credit quality indicator as of the dates presented (dollars in thousands). March 31, 2019 Pass Special Mention Substandard Doubtful Total Construction and development $ 170,907 $ — $ 443 $ 133 $ 171,483 1-4 Family 297,532 — 1,457 72 299,061 Multifamily 57,378 — 109 — 57,487 Farmland 22,193 — 2,264 — 24,457 Commercial real estate 645,454 — 1,291 — 646,745 Total mortgage loans on real estate 1,193,464 — 5,564 205 1,199,233 Commercial and industrial 252,462 — 3,014 — 255,476 Consumer 39,208 218 784 — 40,210 Total loans $ 1,485,134 $ 218 $ 9,362 $ 205 $ 1,494,919 December 31, 2018 Pass Special Mention Substandard Doubtful Total Construction and development $ 157,360 $ — $ 586 $ — $ 157,946 1-4 Family 285,692 69 1,303 73 287,137 Multifamily 50,501 — — — 50,501 Farmland 19,092 — 2,264 — 21,356 Commercial real estate 625,670 — 1,334 — 627,004 Total mortgage loans on real estate 1,138,315 69 5,487 73 1,143,944 Commercial and industrial 207,941 — 2,983 — 210,924 Consumer 44,798 167 992 — 45,957 Total loans $ 1,391,054 $ 236 $ 9,462 $ 73 $ 1,400,825
Schedule of Aggregate Amount of Loans to Related Parties	The table below shows the aggregate principal balance of loans to such related parties as of the dates presented (dollars in thousands). March 31, 2019 December 31, 2018 Balance, beginning of period $ 93,021 $ 31,153 New loans 1,611 79,639 Repayments and changes in relationship (2,349 ) (17,771 ) Balance, end of period $ 92,283 $ 93,021
Schedule of Allowance for Loan Losses	The table below shows a summary of the activity in the allowance for loan losses for the three months ended March 31, 2019 and 2018 (dollars in thousands). Three months ended March 31, 2019 2018 Balance, beginning of period $ 9,454 $ 7,891 Provision for loan losses 265 625 Loans charged off (104 ) (446 ) Recoveries 27 60 Balance, end of period $ 9,642 $ 8,130
Summary of Allowance for Loan Losses	The following tables outline the activity in the allowance for loan losses by collateral type for the three months ended March 31, 2019 and 2018 , and show both the allowances and portfolio balances for loans individually and collectively evaluated for impairment as of March 31, 2019 and 2018 (dollars in thousands). Three months ended March 31, 2019 Construction & Development Farmland 1-4 Family Multifamily Commercial Real Estate Commercial & Industrial Consumer Total Allowance for loan losses: Beginning balance $ 1,038 $ 81 $ 1,465 $ 331 $ 4,182 $ 1,641 $ 716 $ 9,454 Provision 55 20 44 49 44 21 32 265 Charge-offs — — — — — — (104 ) (104 ) Recoveries 1 — 2 — — 11 13 27 Ending balance $ 1,094 $ 101 $ 1,511 $ 380 $ 4,226 $ 1,673 $ 657 $ 9,642 Ending allowance balance for loans individually evaluated for impairment $ 66 $ — $ — $ — $ — $ — $ 200 $ 266 Ending allowance balance for loans acquired with deteriorated credit quality — — — — — — — — Ending allowance balance for loans collectively evaluated for impairment $ 1,028 $ 101 $ 1,511 $ 380 $ 4,226 $ 1,673 $ 457 $ 9,376 Loans receivable: Balance of loans individually evaluated for impairment $ 395 $ — $ 1,247 $ 109 $ 1,368 $ 15 $ 748 $ 3,882 Balance of loans acquired with deteriorated credit quality 11 2,264 475 — 1,565 1,263 43 5,621 Balance of loans collectively evaluated for impairment 171,077 22,193 297,339 57,378 643,812 254,198 39,419 1,485,416 Total period-end balance $ 171,483 $ 24,457 $ 299,061 $ 57,487 $ 646,745 $ 255,476 $ 40,210 $ 1,494,919 Three months ended March 31, 2018 Construction & Development Farmland 1-4 Family Multifamily Commercial Real Estate Commercial & Industrial Consumer Total Allowance for loan losses: Beginning balance $ 945 $ 60 $ 1,287 $ 332 $ 3,599 $ 693 $ 975 $ 7,891 Provision 23 3 — 27 9 519 44 625 Charge-offs — — (7 ) — — (310 ) (129 ) (446 ) Recoveries 6 — 3 — — 33 18 60 Ending balance $ 974 $ 63 $ 1,283 $ 359 $ 3,608 $ 935 $ 908 $ 8,130 Ending allowance balance for loans individually evaluated for impairment $ — $ — $ — $ — $ — $ 58 $ 293 $ 351 Ending allowance balance for loans acquired with deteriorated credit quality — — — — — — — — Ending allowance balance for loans collectively evaluated for impairment $ 974 $ 63 $ 1,283 $ 359 $ 3,608 $ 877 $ 615 $ 7,779 Loans receivable: Balance of loans individually evaluated for impairment $ 159 $ — $ 1,133 $ — $ 1,186 $ 545 $ 1,056 $ 4,079 Balance of loans acquired with deteriorated credit quality 55 2,512 1,333 828 2,075 1,315 3 8,121 Balance of loans collectively evaluated for impairment 162,123 18,213 275,512 53,676 550,894 134,105 66,227 1,260,750 Total period-end balance $ 162,337 $ 20,725 $ 277,978 $ 54,504 $ 554,155 $ 135,965 $ 67,286 $ 1,272,950
Schedule of Aging Analysis of Loans	The following tables contain information on the Company’s impaired loans, which include troubled debt restructurings (“TDRs”), discussed in more detail below, and nonaccrual loans individually evaluated for impairment for purposes of determining the allowance for loan losses. The average balances are calculated based on the month-end balances of the loans during the period reported (dollars in thousands). March 31, 2019 Recorded Investment Unpaid Principal Balance Related Allowance With no related allowance recorded: Construction and development $ 262 $ 281 $ — 1-4 Family 1,247 1,250 — Multifamily 109 109 — Commercial real estate 1,368 1,392 — Total mortgage loans on real estate 2,986 3,032 — Commercial and industrial 15 16 — Consumer 178 209 — Total 3,179 3,257 — With related allowance recorded: Construction and development 133 136 66 Total mortgage loans on real estate 133 136 66 Consumer 570 609 200 Total 703 745 266 Total loans: Construction and development 395 417 66 1-4 Family 1,247 1,250 — Multifamily 109 109 — Commercial real estate 1,368 1,392 — Total mortgage loans on real estate 3,119 3,168 66 Commercial and industrial 15 16 — Consumer 748 818 200 Total $ 3,882 $ 4,002 $ 266 December 31, 2018 Recorded Investment Unpaid Principal Balance Related Allowance With no related allowance recorded: Construction and development $ 339 $ 359 $ — 1-4 Family 1,177 1,180 — Commercial real estate 761 777 — Total mortgage loans on real estate 2,277 2,316 — Commercial and industrial 76 77 Consumer 215 237 — Total 2,568 2,630 — With related allowance recorded: Consumer 701 738 236 Total 701 738 236 Total loans: Construction and development 339 359 — 1-4 Family 1,177 1,180 — Commercial real estate 761 777 — Total mortgage loans on real estate 2,277 2,316 — Commercial and industrial 76 77 — Consumer 916 975 236 Total $ 3,269 $ 3,368 $ 236
Schedule Of Average Recorded Investment And Interest Income Recognized For TDRs	Presented in the tables below is the average recorded investment of the impaired loans and the related amount of interest income recognized during the time within the period that the loans were impaired. The average balances are calculated based on the month-end balances of the loans during the periods reported (dollars in thousands). Three months ended March 31, 2019 2018 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized With no related allowance recorded: Construction and development $ 264 $ 5 $ 160 $ 2 1-4 Family 1,232 10 1,210 11 Multifamily 108 — — — Commercial real estate 961 2 1,189 8 Total mortgage loans on real estate 2,565 17 2,559 21 Commercial and industrial 20 — 359 — Consumer 245 — 274 — Total 2,830 17 3,192 21 With related allowance recorded: Construction and development 134 — — — Total mortgage loans on real estate 134 — — — Commercial and industrial — — 387 — Consumer 582 — 862 — Total 716 — 1,249 — Total loans: Construction and development 398 5 160 2 1-4 Family 1,232 10 1,210 11 Multifamily 108 — — — Commercial real estate 961 2 1,189 8 Total mortgage loans on real estate 2,699 17 2,559 21 Commercial and industrial 20 — 746 — Consumer 827 — 1,136 — Total $ 3,546 $ 17 $ 4,441 $ 21

STOCKHOLDERS' EQUITY (Tables)

STOCKHOLDERS' EQUITY (Tables)	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Loss	Activity within the balances in accumulated other comprehensive loss is shown in the tables below (dollars in thousands). Three months ended March 31, 2019 2018 Beginning of Period Net Change End of Period Beginning of Period Net Change End of Period Unrealized gain (loss), available for sale, net $ (1,647 ) $ 2,212 $ 565 $ (71 ) $ (1,789 ) $ (1,860 ) Reclassification of realized gain, net (1,925 ) (2 ) (1,927 ) (1,914 ) — (1,914 ) Unrealized loss, transfer from available for sale to held to maturity, net 5 — 5 7 — 7 Change in fair value of interest rate swap designated as a cash flow hedge, net 491 (167 ) 324 407 265 672 Accumulated other comprehensive loss $ (3,076 ) $ 2,043 $ (1,033 ) $ (1,571 ) $ (1,524 ) $ (3,095 )

STOCK-BASED COMPENSATION (Table

STOCK-BASED COMPENSATION (Tables)	3 Months Ended
	Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Assumptions Used for Option Awards Granted	The assumptions presented below were used for the options granted during the three months ended March 31, 2019 . Expected dividends 0.82 % Expected volatility 27.26 % Risk-free interest rate 2.63 % Expected term (in years) 6.5 Weighted-average grant date fair value $ 7.30
Schedule of Stock Option Activity	The table below summarizes stock option activity for the periods presented. Three months ended March 31, 2019 2018 Number of Options Weighted Average Exercise Price Number of Options Weighted Average Exercise Price Outstanding at beginning of period 340,646 $ 15.98 322,917 $ 15.09 Granted 36,984 24.40 31,788 24.30 Forfeited — — — — Exercised — — (8,001 ) 14.00 Outstanding at end of period 377,630 $ 16.81 346,704 $ 15.96 Exercisable at end of period 185,161 $ 15.23 123,464 $ 14.77
Restricted Stock Award Activity	The restricted stock and restricted stock unit activity is shown below for the periods presented. Three months ended March 31, 2019 2018 Shares Weighted Average Grant Date Fair Value Shares Weighted Average Grant Date Fair Value Balance at beginning of period 135,848 $ 20.47 112,688 $ 17.28 Granted 76,374 24.46 59,093 24.33 Forfeited (180 ) 22.30 (1,147 ) 19.06 Earned and issued (34,871 ) 20.34 (23,342 ) 17.53 Balance at end of period 177,171 $ 22.21 147,292 $ 20.06

FAIR VALUES OF FINANCIAL INST_2

FAIR VALUES OF FINANCIAL INSTRUMENTS (Tables)	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis	Assets and liabilities measured at fair value on a recurring basis are summarized in the table below as of the dates indicated (dollars in thousands). Estimated Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) March 31, 2019 Assets: Obligations of U.S. government agencies and corporations $ 7,260 $ — $ 7,260 $ — Obligations of state and political subdivisions 31,510 — 12,609 18,901 Corporate bonds 18,352 — 17,025 1,327 Residential mortgage-backed securities 146,755 — 146,755 — Commercial mortgage-backed securities 60,380 — 60,380 — Equity securities 1,871 1,871 — — Derivative financial instruments 411 — 411 — Total assets $ 266,539 $ 1,871 $ 244,440 $ 20,228 December 31, 2018 Assets: Obligations of U.S. government agencies and corporations $ 7,870 $ — $ 7,870 $ — Obligations of state and political subdivisions 33,986 — 15,178 18,808 Corporate bonds 15,509 — 14,174 1,335 Residential mortgage-backed securities 134,927 — 134,927 — Commercial mortgage-backed securities 56,689 — 56,689 — Equity securities 1,699 1,699 — — Derivative financial instruments 622 — 622 — Total assets $ 251,302 $ 1,699 $ 229,460 $ 20,143
Summary of Assets Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs	The tables below provide a reconciliation for assets measured at fair value on a recurring basis using significant unobservable inputs, or level 3 inputs, for the three months ended March 31, 2019 and March 31, 2018 (dollars in thousands). Obligations of State and Political Subdivisions Corporate Bonds Total Balance at December 31, 2018 $ 18,808 $ 1,335 $ 20,143 Realized gains (losses) included in earnings — — — Unrealized gains (losses) included in other comprehensive income 116 (8 ) 108 Purchases — — — Sales — — — Maturities, prepayments, and calls (23 ) (23 ) Transfers into level 3 — — — Transfers out of level 3 — — — Balance at March 31, 2019 $ 18,901 $ 1,327 $ 20,228 Obligations of State and Corporate Bonds Total Balance at December 31, 2017 $ 19,543 $ 1,325 $ 20,868 Realized gains (losses) included in earnings — — — Unrealized (losses) gains included in other comprehensive income (328 ) 19 (309 ) Purchases — — — Sales — — — Transfers into level 3 — — — Transfers out of level 3 — — — Balance at March 31, 2018 $ 19,215 $ 1,344 $ 20,559
Summary of Assets Measured at Fair Value on a Nonrecurring Basis	Quantitative information about assets measured at fair value on a nonrecurring basis based on significant unobservable inputs (level 3) is summarized below as of the dates indicated; there were no liabilities measured on a nonrecurring basis at March 31, 2019 or December 31, 2018 (dollars in thousands). Estimated Valuation Technique Unobservable Inputs Range of Discounts Weighted Average Discount March 31, 2019 Impaired loans $ 148 Discounted cash flows, Underlying collateral value Collateral discounts and estimated costs to sell 0% - 100% 29% December 31, 2018 Impaired loans $ 383 Discounted cash flows, Underlying collateral value Collateral discounts and estimated costs to sell 0% - 100% 15% Other real estate owned 3,270 Underlying collateral value, Third party appraisals Collateral discounts and discount rates 15% 15%
Summary of Estimated Fair Values of Company's Financial Instruments	The estimated fair values of the Company’s financial instruments are summarized in the table below as of the dates indicated (dollars in thousands). March 31, 2019 Carrying Amount Estimated Fair Value Level 1 Level 2 Level 3 Financial assets: Cash and due from banks $ 70,041 $ 70,041 $ 70,041 $ — $ — Federal funds sold 2,362 2,362 2,362 — — Investment securities 280,073 279,984 — 249,198 30,786 Equity securities 14,392 14,392 1,871 12,521 — Loans, net of allowance 1,485,277 1,456,083 — — 1,456,083 Derivative financial instruments 411 411 — 411 — Financial liabilities: Deposits, noninterest-bearing $ 285,811 $ 285,811 $ — $ 285,811 $ — Deposits, interest-bearing 1,246,982 1,210,389 — — 1,210,389 FHLB short-term advances and repurchase agreements 184,818 184,818 — 184,818 — FHLB long-term advances 2,493 2,104 — — 2,104 Junior subordinated debt 5,858 7,599 — — 7,599 Subordinated debt 18,600 19,422 — 19,422 — December 31, 2018 Carrying Amount Estimated Fair Value Level 1 Level 2 Level 3 Financial assets: Cash and due from banks $ 17,134 $ 17,134 $ 17,134 $ — $ — Federal funds sold 6 6 6 — — Investment securities 265,047 264,786 — 234,053 30,733 Equity securities 13,562 13,562 1,699 11,863 — Loans, net of allowance 1,391,371 1,374,292 — — 1,374,292 Derivative financial instruments 622 622 — 622 — Financial liabilities: Deposits, noninterest-bearing $ 217,457 $ 217,457 $ — $ 217,457 $ — Deposits, interest-bearing 1,144,274 1,095,639 — — 1,095,639 FHLB short-term advances and repurchase agreements 205,399 205,399 — 205,399 — FHLB long-term advances 3,090 2,712 — — 2,712 Junior subordinated debt 5,845 7,420 — — 7,420 Subordinated debt 18,600 19,187 — 19,187 —

INCOME TAXES (Tables)

INCOME TAXES (Tables)	3 Months Ended
	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Summary of Expense for Income Taxes and Effective Tax Rate Included in Consolidated Statement of Operations	The expense for income taxes and the effective tax rate included in the consolidated statements of income are shown in the table below for the periods presented (dollars in thousands). Three months ended March 31, 2019 2018 Income tax expense $ 952 $ 1,341 Effective tax rate 19.6 % 35.8 %

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Tables)	3 Months Ended
	Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Summary of Commitments to Extend Credit	The table below shows the approximate amounts of the Company’s commitments to extend credit as of the dates presented (dollars in thousands). March 31, 2019 December 31, 2018 Commitments to extend credit Loan commitments $ 269,707 $ 263,002 Standby letters of credit 11,127 11,114

LEASES (Tables)

LEASES (Tables)	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Quantitative Information Regarding Operating Leases	Quantitative information regarding the Company’s operating leases is presented below as of and for three months ended March 31, 2019 (dollars in thousands). Total operating lease cost $ 44.0 Weighted-average remaining lease term (in years) 11.3 Weighted-average discount rate 3.5 %
Future Minimum Lease Payments Due Under Non-Cancelable Operating Leases	Future minimum lease payments due under non-cancelable operating leases at March 31, 2019 are presented below (dollars in thousands). 2019 $ 204 2020 289 2021 294 2022 299 2023 297 Thereafter 1,672 Total $ 3,055

SUMMARY OF SIGNIFICANT ACCOUN_3

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	3 Months Ended			12 Months Ended
	Mar. 31, 2019USD ($)employeebranch_location	Mar. 31, 2018USD ($)		Dec. 31, 2018USD ($)	Jan. 01, 2019USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of employees | employee	280
Unfunded loan commitments	$ 85,000			$ 66,000
Additional income tax expense		$ 557,000	[1]	$ 0
Effective tax rate	19.60%	35.80%
Right-of-use asset	$ 2,500,000
Lease liability	$ 2,500,000
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use asset					$ 1,200,000
Lease liability					$ 1,200,000
Louisiana
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of full service banking offices | branch_location	21
Texas
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of full service banking offices | branch_location	3
[1]	The Tax Cuts and Jobs Act, enacted on December 22, 2017, required the revaluation of the Company’s deferred tax assets and liabilities as of December 31, 2017 as a result of the lower corporate tax rates to be realized beginning January 1, 2018. The $0.6 million adjustment to retained earnings for the period ended March 31, 2018 represents a reclassification of the tax effects of the Tax Cuts and Jobs Act.

BUSINESS COMBINATIONS - Narrati

BUSINESS COMBINATIONS - Narrative (Details) $ in Thousands	Mar. 01, 2019USD ($)branch_locationshares	Mar. 31, 2019USD ($)	Mar. 31, 2018USD ($)
Business Acquisition [Line Items]
Acquisition expense		$ 905	$ 1,104
Mainland
Business Acquisition [Line Items]
Percentage of voting interests acquired	100.00%
Merger consideration, aggregate shares of common stock (in shares) | shares	763,849
Total consideration transferred	$ 18,600
Total assets acquired	128,403
Loans	82,431
Deposits	107,646
Goodwill	$ 5,065
Number of branch locations | branch_location	3
Contractually required principal and interest payments of the loans acquired	$ 91,900
Amount not expected to be collected	$ 1,300
Pro forma tax expense		1,600
Interest income of acquiree		600
Noninterest income of acquiree		20
Net income of acquiree		$ 300

BUSINESS COMBINATIONS - Schedul

BUSINESS COMBINATIONS - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Details) - Mainland $ in Thousands	Mar. 01, 2019USD ($)
Purchase price:
Stock issued	$ 18,637
Fair value of assets acquired:
Cash and cash equivalents	38,365
Loans	82,431
Other real estate owned	1,408
Bank premises and equipment	2,550
Core deposit intangible asset	2,439
Other assets	1,210
Total assets acquired	128,403
Fair value of liabilities acquired:
Deposits	107,646
Repurchase agreements	4,684
Other liabilities	2,501
Total liabilities assumed	114,831
Fair value of net assets acquired	13,572
Goodwill	$ 5,065

BUSINESS COMBINATIONS - Busines

BUSINESS COMBINATIONS - Business Acquisition Pro Forma Information (Details) - Mainland - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Business Acquisition [Line Items]
Interest income	$ 21,628	$ 18,604
Noninterest income	1,428	1,150
Net income	$ 3,875	$ 2,710

EARNINGS PER SHARE - Computatio

EARNINGS PER SHARE - Computation of Basic and Diluted Earnings Per Common Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Earnings per common share - basic
Net income allocated to common shareholders	$ 3,871	$ 2,370
Weighted-average basic shares outstanding (in shares)	9,675,381	9,513,332
Basic earnings per common share (in dollars per share)	$ 0.40	$ 0.25
Earnings per common share - diluted
Net income allocated to common shareholders	$ 3,871	$ 2,370
Weighted-average basic shares outstanding (in shares)	9,675,381	9,513,332
Dilutive effect of securities (in shares)	95,371	96,271
Total weighted average diluted shares outstanding (in shares)	9,770,752	9,609,603
Diluted earnings per common share (in dollars per share)	$ 0.40	$ 0.25

EARNINGS PER SHARE - Antidiluti

EARNINGS PER SHARE - Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share (in shares)	0	8,891
Restricted stock awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share (in shares)	55	32,223
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share (in shares)	44,467	0

INVESTMENT SECURITIES - Schedul

INVESTMENT SECURITIES - Schedule of Amortized Cost and Approximate Fair Value of Investment Securities Classified as Available for Sale (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 265,981	$ 253,504
Gross Unrealized Gains	1,193	517
Gross Unrealized Losses	(2,917)	(5,040)
Fair Value	264,257	248,981
Obligations of U.S. government agencies and corporations
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	7,305	7,946
Gross Unrealized Gains	27	14
Gross Unrealized Losses	(72)	(90)
Fair Value	7,260	7,870
Obligations of state and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	31,756	34,875
Gross Unrealized Gains	123	6
Gross Unrealized Losses	(369)	(895)
Fair Value	31,510	33,986
Corporate bonds
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	18,755	16,166
Gross Unrealized Gains	80	53
Gross Unrealized Losses	(483)	(710)
Fair Value	18,352	15,509
Residential mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	147,104	136,768
Gross Unrealized Gains	757	336
Gross Unrealized Losses	(1,106)	(2,177)
Fair Value	146,755	134,927
Commercial mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	61,061	57,749
Gross Unrealized Gains	206	108
Gross Unrealized Losses	(887)	(1,168)
Fair Value	$ 60,380	$ 56,689

INVESTMENT SECURITIES - Sched_2

INVESTMENT SECURITIES - Schedule of Proceeds from Sale of Investment Securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Proceeds from sale	$ 393	$ 0
Gross gains	2	0
Gross losses	$ 0	$ 0

INVESTMENT SECURITIES - Sched_3

INVESTMENT SECURITIES - Schedule of Amortized Cost and Approximate Fair Value of Investment Securities Classified as Held to Maturity (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 15,816	$ 16,066
Gross Unrealized Gains	5	2
Gross Unrealized Losses	(94)	(263)
Fair Value	15,727	15,805
Obligations of state and political subdivisions
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	10,586	10,699
Gross Unrealized Gains	5	2
Gross Unrealized Losses	(33)	(111)
Fair Value	10,558	10,590
Residential mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	5,230	5,367
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(61)	(152)
Fair Value	$ 5,169	$ 5,215

INVESTMENT SECURITIES - Narrati

INVESTMENT SECURITIES - Narrative (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Securities classified as trading securities	$ 0	$ 0
Pledged securities	$ 95,300,000	$ 77,600,000

INVESTMENT SECURITIES - Sched_4

INVESTMENT SECURITIES - Schedule of Unrealized Losses and Fair Value by Investment Category for Securities Available for Sale (Detail) $ in Thousands	Mar. 31, 2019USD ($)security	Dec. 31, 2018USD ($)security
Count
Total | security	332	392
Fair Value
Less than 12 Months	$ 17,796	$ 51,002
12 Months or More	148,889	149,414
Total	166,685	200,416
Unrealized Losses
Less than 12 Months	(176)	(842)
12 Months or More	(2,741)	(4,198)
Total	$ (2,917)	$ (5,040)
Obligations of U.S. government agencies and corporations
Count
Total | security	11	15
Fair Value
Less than 12 Months	$ 0	$ 469
12 Months or More	4,497	5,304
Total	4,497	5,773
Unrealized Losses
Less than 12 Months	0	0
12 Months or More	(72)	(90)
Total	$ (72)	$ (90)
Obligations of state and political subdivisions
Count
Total | security	39	63
Fair Value
Less than 12 Months	$ 5,379	$ 13,716
12 Months or More	15,497	19,270
Total	20,876	32,986
Unrealized Losses
Less than 12 Months	(33)	(330)
12 Months or More	(336)	(565)
Total	$ (369)	$ (895)
Corporate bonds
Count
Total | security	26	27
Fair Value
Less than 12 Months	$ 5,209	$ 6,793
12 Months or More	7,220	5,763
Total	12,429	12,556
Unrealized Losses
Less than 12 Months	(118)	(225)
12 Months or More	(365)	(485)
Total	$ (483)	$ (710)
Residential mortgage-backed securities
Count
Total | security	165	193
Fair Value
Less than 12 Months	$ 4,020	$ 24,868
12 Months or More	82,591	79,517
Total	86,611	104,385
Unrealized Losses
Less than 12 Months	(5)	(245)
12 Months or More	(1,101)	(1,932)
Total	$ (1,106)	$ (2,177)
Commercial mortgage-backed securities
Count
Total | security	91	94
Fair Value
Less than 12 Months	$ 3,188	$ 5,156
12 Months or More	39,084	39,560
Total	42,272	44,716
Unrealized Losses
Less than 12 Months	(20)	(42)
12 Months or More	(867)	(1,126)
Total	$ (887)	$ (1,168)

INVESTMENT SECURITIES - Sched_5

INVESTMENT SECURITIES - Schedule of Unrealized Losses and Fair Value by Investment Category for Securities Held to Maturity (Detail) $ in Thousands	Mar. 31, 2019USD ($)security	Dec. 31, 2018USD ($)security
Count
Total | security	10	10
Fair Value
Less than 12 Months	$ 0	$ 1,761
12 Months or More	10,602	8,922
Total	10,602	10,683
Unrealized Losses
Less than 12 Months	0	(35)
12 Months or More	(94)	(228)
Total	$ (94)	$ (263)
Obligations of state and political subdivisions
Count
Total | security	1	1
Fair Value
Less than 12 Months	$ 0	$ 0
12 Months or More	5,433	5,468
Total	5,433	5,468
Unrealized Losses
Less than 12 Months	0	0
12 Months or More	(33)	(111)
Total	$ (33)	$ (111)
Residential mortgage-backed securities
Count
Total | security	9	9
Fair Value
Less than 12 Months	$ 0	$ 1,761
12 Months or More	5,169	3,454
Total	5,169	5,215
Unrealized Losses
Less than 12 Months	0	(35)
12 Months or More	(61)	(117)
Total	$ (61)	$ (152)

INVESTMENT SECURITIES - Sched_6

INVESTMENT SECURITIES - Schedule of Amortized Cost and Approximate Fair Value of Investment Debt Securities by Contractual Maturity (Including Mortgage-backed Securities) (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Amortized Cost
Due within one year	$ 3,314	$ 3,734
Due after one year through five years	11,910	10,681
Due after five years through ten years	52,277	44,255
Due after ten years	198,480	194,834
Amortized Cost	265,981	253,504
Fair Value
Due within one year	3,312	3,730
Due after one year through five years	11,895	10,600
Due after five years through ten years	51,713	43,460
Due after ten years	197,337	191,191
Total debt securities	264,257	248,981
Amortized Cost
Due within one year	755	755
Due after one year through five years	3,405	3,405
Due after five years through ten years	960	960
Due after ten years	10,696	10,946
Amortized Cost	15,816	16,066
Fair Value
Due within one year	756	755
Due after one year through five years	3,408	3,406
Due after five years through ten years	961	961
Due after ten years	10,602	10,683
Total debt securities	$ 15,727	$ 15,805

LOANS AND ALLOWANCE FOR LOAN _3

LOANS AND ALLOWANCE FOR LOAN LOSSES - Schedule of Loan Portfolio Excluding Loans Held for Sale (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 1,494,919	$ 1,400,825	$ 1,272,950
Total mortgage loans on real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,199,233	1,143,944
Total mortgage loans on real estate | Construction and development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	171,483	157,946	162,337
Total mortgage loans on real estate | 1-4 Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	299,061	287,137	277,978
Total mortgage loans on real estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	57,487	50,501
Total mortgage loans on real estate | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	24,457	21,356	20,725
Total mortgage loans on real estate | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	646,745	627,004	554,155
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	255,476	210,924	135,965
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 40,210	$ 45,957	$ 67,286

LOANS AND ALLOWANCE FOR LOAN _4

LOANS AND ALLOWANCE FOR LOAN LOSSES - Narrative (Details)	3 Months Ended
	Mar. 31, 2019USD ($)contract	Dec. 31, 2018USD ($)contract	Mar. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Receivables [Abstract]
Unamortized premiums and discounts	$ 2,500,000	$ 1,400,000
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of contracts in nonaccrual loans | contract	3	3
Total loans	$ 1,494,919,000	$ 1,400,825,000	$ 1,272,950,000
Balances of loans sold to and serviced for others	128,900,000	135,400,000
Unpaid principal balances of loans sold to and serviced for others	217,800,000	187,600,000
Loan outstanding to related parties	92,283,000	93,021,000		$ 31,153,000
Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	0	0
Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	9,362,000	9,462,000
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	40,210,000	45,957,000	67,286,000
Consumer | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 784,000	992,000
Consumer | Indirect auto loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Remaining term	2 years 7 months
Total mortgage loans on real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 1,199,233,000	1,143,944,000
Total mortgage loans on real estate | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 5,564,000	$ 5,487,000
Total mortgage loans on real estate | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of contracts in nonaccrual loans | contract	1	1
Total loans	$ 646,745,000	$ 627,004,000	554,155,000
Total mortgage loans on real estate | Commercial real estate | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 1,291,000	$ 1,334,000
Total mortgage loans on real estate | Construction and development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of contracts in nonaccrual loans | contract	1	1
Total loans	$ 171,483,000	$ 157,946,000	162,337,000
Total mortgage loans on real estate | Construction and development | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 443,000	$ 586,000
Total mortgage loans on real estate | 1-4 Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of contracts in nonaccrual loans | contract	1	1
Total loans	$ 299,061,000	$ 287,137,000	$ 277,978,000
Total mortgage loans on real estate | 1-4 Family | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 1,457,000	$ 1,303,000
Customer Concentration Risk | Receivables | Consumer | Indirect auto loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	64.00%

LOANS AND ALLOWANCE FOR LOAN _5

LOANS AND ALLOWANCE FOR LOAN LOSSES - Schedule of Aging Analysis of Loans (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	$ 1,483,007	$ 1,389,027
Nonaccrual	3,736	3,597
Total Past Due & Nonaccrual	6,291	5,781
Acquired Impaired Loans	5,621	6,017
Total Loans	1,494,919	1,400,825	$ 1,272,950
30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	2,497	2,047
60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	58	137
90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Total mortgage loans on real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	1,190,548	1,135,135
Nonaccrual	2,943	2,539
Total Past Due & Nonaccrual	4,370	4,031
Acquired Impaired Loans	4,315	4,778
Total Loans	1,199,233	1,143,944
Total mortgage loans on real estate | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	1,417	1,451
Total mortgage loans on real estate | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	10	41
Total mortgage loans on real estate | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Total mortgage loans on real estate | Construction and development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	170,870	157,202
Nonaccrual	448	556
Total Past Due & Nonaccrual	602	731
Acquired Impaired Loans	11	13
Total Loans	171,483	157,946	162,337
Total mortgage loans on real estate | Construction and development | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	154	175
Total mortgage loans on real estate | Construction and development | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Total mortgage loans on real estate | Construction and development | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Total mortgage loans on real estate | 1-4 Family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	296,218	284,205
Nonaccrual	1,095	1,300
Total Past Due & Nonaccrual	2,368	2,442
Acquired Impaired Loans	475	490
Total Loans	299,061	287,137	277,978
Total mortgage loans on real estate | 1-4 Family | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	1,263	1,101
Total mortgage loans on real estate | 1-4 Family | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	10	41
Total mortgage loans on real estate | 1-4 Family | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Total mortgage loans on real estate | Multifamily
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	57,378	50,392
Nonaccrual	109	0
Total Past Due & Nonaccrual	109	109
Acquired Impaired Loans	0	0
Total Loans	57,487	50,501
Total mortgage loans on real estate | Multifamily | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	109
Total mortgage loans on real estate | Multifamily | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Total mortgage loans on real estate | Multifamily | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Total mortgage loans on real estate | Farmland
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	22,193	19,092
Nonaccrual	0	0
Total Past Due & Nonaccrual	0	0
Acquired Impaired Loans	2,264	2,264
Total Loans	24,457	21,356	20,725
Total mortgage loans on real estate | Farmland | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Total mortgage loans on real estate | Farmland | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Total mortgage loans on real estate | Farmland | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Total mortgage loans on real estate | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	643,889	624,244
Nonaccrual	1,291	683
Total Past Due & Nonaccrual	1,291	749
Acquired Impaired Loans	1,565	2,011
Total Loans	646,745	627,004	554,155
Total mortgage loans on real estate | Commercial real estate | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	66
Total mortgage loans on real estate | Commercial real estate | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Total mortgage loans on real estate | Commercial real estate | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	253,316	209,399
Nonaccrual	9	64
Total Past Due & Nonaccrual	897	330
Acquired Impaired Loans	1,263	1,195
Total Loans	255,476	210,924	135,965
Commercial and industrial | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	871	221
Commercial and industrial | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	17	45
Commercial and industrial | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	39,143	44,493
Nonaccrual	784	994
Total Past Due & Nonaccrual	1,024	1,420
Acquired Impaired Loans	43	44
Total Loans	40,210	45,957	$ 67,286
Consumer | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	209	375
Consumer | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	31	51
Consumer | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	$ 0	$ 0

LOANS AND ALLOWANCE FOR LOAN _6

LOANS AND ALLOWANCE FOR LOAN LOSSES - Summary of the Company's Loan Portfolio by Category and Credit Quality Indicator (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 1,494,919	$ 1,400,825	$ 1,272,950
Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,485,134	1,391,054
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	218	236
Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	9,362	9,462
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans	205	73
Total mortgage loans on real estate
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,199,233	1,143,944
Total mortgage loans on real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,193,464	1,138,315
Total mortgage loans on real estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	69
Total mortgage loans on real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	5,564	5,487
Total mortgage loans on real estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans	205	73
Total mortgage loans on real estate | Construction and development
Financing Receivable, Recorded Investment [Line Items]
Total loans	171,483	157,946	162,337
Total mortgage loans on real estate | Construction and development | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	170,907	157,360
Total mortgage loans on real estate | Construction and development | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Total mortgage loans on real estate | Construction and development | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	443	586
Total mortgage loans on real estate | Construction and development | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans	133	0
Total mortgage loans on real estate | 1-4 Family
Financing Receivable, Recorded Investment [Line Items]
Total loans	299,061	287,137	277,978
Total mortgage loans on real estate | 1-4 Family | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	297,532	285,692
Total mortgage loans on real estate | 1-4 Family | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	69
Total mortgage loans on real estate | 1-4 Family | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,457	1,303
Total mortgage loans on real estate | 1-4 Family | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans	72	73
Total mortgage loans on real estate | Multifamily
Financing Receivable, Recorded Investment [Line Items]
Total loans	57,487	50,501	54,504
Total mortgage loans on real estate | Multifamily | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	57,378	50,501
Total mortgage loans on real estate | Multifamily | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Total mortgage loans on real estate | Multifamily | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	109	0
Total mortgage loans on real estate | Multifamily | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Total mortgage loans on real estate | Farmland
Financing Receivable, Recorded Investment [Line Items]
Total loans	24,457	21,356	20,725
Total mortgage loans on real estate | Farmland | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	22,193	19,092
Total mortgage loans on real estate | Farmland | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Total mortgage loans on real estate | Farmland | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,264	2,264
Total mortgage loans on real estate | Farmland | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Total mortgage loans on real estate | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Total loans	646,745	627,004	554,155
Total mortgage loans on real estate | Commercial real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	645,454	625,670
Total mortgage loans on real estate | Commercial real estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Total mortgage loans on real estate | Commercial real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,291	1,334
Total mortgage loans on real estate | Commercial real estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Total loans	255,476	210,924	135,965
Commercial and industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	252,462	207,941
Commercial and industrial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Commercial and industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	3,014	2,983
Commercial and industrial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Consumer
Financing Receivable, Recorded Investment [Line Items]
Total loans	40,210	45,957	$ 67,286
Consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	39,208	44,798
Consumer | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	218	167
Consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	784	992
Consumer | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 0	$ 0

LOANS AND ALLOWANCE FOR LOAN _7

LOANS AND ALLOWANCE FOR LOAN LOSSES - Schedule of Aggregate Amount of Loans to Related Parties (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Loans and Leases Receivable, Related Parties [Roll Forward]
Balance, beginning of period	$ 93,021	$ 31,153
New loans	1,611	79,639
Repayments and changes in relationship	(2,349)	(17,771)
Balance, end of period	$ 92,283	$ 93,021

LOANS AND ALLOWANCE FOR LOAN _8

LOANS AND ALLOWANCE FOR LOAN LOSSES - Schedule of Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Allowance for loan losses:
Balance, beginning of period	$ 9,454	$ 7,891
Provision for loan losses	265	625
Loans charged off	(104)	(446)
Recoveries	27	60
Balance, end of period	$ 9,642	$ 8,130

LOANS AND ALLOWANCE FOR LOAN _9

LOANS AND ALLOWANCE FOR LOAN LOSSES - Summary of Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Allowance for loan losses:
Balance, beginning of period	$ 9,454	$ 7,891
Provision	265	625
Charge-offs	(104)	(446)
Recoveries	27	60
Balance, end of period	9,454	7,891	$ 9,642	$ 9,454	$ 8,130
Ending allowance balance for loans individually evaluated for impairment			266		351
Ending allowance balance for loans acquired with deteriorated credit quality			0		0
Ending allowance balance for loans collectively evaluated for impairment			9,376		7,779
Loans receivable:
Balance of loans individually evaluated for impairment			3,882		4,079
Balance of loans acquired with deteriorated credit quality			5,621		8,121
Balance of loans collectively evaluated for impairment			1,485,416		1,260,750
Total Loans			1,494,919	1,400,825	1,272,950
Total mortgage loans on real estate
Loans receivable:
Total Loans			1,199,233	1,143,944
Total mortgage loans on real estate | Construction & Development
Allowance for loan losses:
Balance, beginning of period	1,038	945
Provision	55	23
Charge-offs	0	0
Recoveries	1	6
Balance, end of period	1,038	945	1,094	1,038	974
Ending allowance balance for loans individually evaluated for impairment			66		0
Ending allowance balance for loans acquired with deteriorated credit quality			0		0
Ending allowance balance for loans collectively evaluated for impairment			1,028		974
Loans receivable:
Balance of loans individually evaluated for impairment			395		159
Balance of loans acquired with deteriorated credit quality			11		55
Balance of loans collectively evaluated for impairment			171,077		162,123
Total Loans			171,483	157,946	162,337
Total mortgage loans on real estate | Farmland
Allowance for loan losses:
Balance, beginning of period	81	60
Provision	20	3
Charge-offs	0	0
Recoveries	0	0
Balance, end of period	81	60	101	81	63
Ending allowance balance for loans individually evaluated for impairment			0		0
Ending allowance balance for loans acquired with deteriorated credit quality			0		0
Ending allowance balance for loans collectively evaluated for impairment			101		63
Loans receivable:
Balance of loans individually evaluated for impairment			0		0
Balance of loans acquired with deteriorated credit quality			2,264		2,512
Balance of loans collectively evaluated for impairment			22,193		18,213
Total Loans			24,457	21,356	20,725
Total mortgage loans on real estate | 1-4 Family
Allowance for loan losses:
Balance, beginning of period	1,465	1,287
Provision	44	0
Charge-offs	0	(7)
Recoveries	2	3
Balance, end of period	1,465	1,287	1,511	1,465	1,283
Ending allowance balance for loans individually evaluated for impairment			0		0
Ending allowance balance for loans acquired with deteriorated credit quality			0		0
Ending allowance balance for loans collectively evaluated for impairment			1,511		1,283
Loans receivable:
Balance of loans individually evaluated for impairment			1,247		1,133
Balance of loans acquired with deteriorated credit quality			475		1,333
Balance of loans collectively evaluated for impairment			297,339		275,512
Total Loans			299,061	287,137	277,978
Total mortgage loans on real estate | Multifamily
Allowance for loan losses:
Balance, beginning of period	331	332
Provision	49	27
Charge-offs	0	0
Recoveries	0	0
Balance, end of period	331	332	380	331	359
Ending allowance balance for loans individually evaluated for impairment			0		0
Ending allowance balance for loans acquired with deteriorated credit quality			0		0
Ending allowance balance for loans collectively evaluated for impairment			380		359
Loans receivable:
Balance of loans individually evaluated for impairment			109		0
Balance of loans acquired with deteriorated credit quality			0		828
Balance of loans collectively evaluated for impairment			57,378		53,676
Total Loans			57,487	50,501	54,504
Total mortgage loans on real estate | Commercial Real Estate
Allowance for loan losses:
Balance, beginning of period	4,182	3,599
Provision	44	9
Charge-offs	0	0
Recoveries	0	0
Balance, end of period	4,182	3,599	4,226	4,182	3,608
Ending allowance balance for loans individually evaluated for impairment			0		0
Ending allowance balance for loans acquired with deteriorated credit quality			0		0
Ending allowance balance for loans collectively evaluated for impairment			4,226		3,608
Loans receivable:
Balance of loans individually evaluated for impairment			1,368		1,186
Balance of loans acquired with deteriorated credit quality			1,565		2,075
Balance of loans collectively evaluated for impairment			643,812		550,894
Total Loans			646,745	627,004	554,155
Commercial & Industrial
Allowance for loan losses:
Balance, beginning of period	1,641	693
Provision	21	519
Charge-offs	0	(310)
Recoveries	11	33
Balance, end of period	1,641	693	1,673	1,641	935
Ending allowance balance for loans individually evaluated for impairment			0		58
Ending allowance balance for loans acquired with deteriorated credit quality			0		0
Ending allowance balance for loans collectively evaluated for impairment			1,673		877
Loans receivable:
Balance of loans individually evaluated for impairment			15		545
Balance of loans acquired with deteriorated credit quality			1,263		1,315
Balance of loans collectively evaluated for impairment			254,198		134,105
Total Loans			255,476	210,924	135,965
Consumer
Allowance for loan losses:
Balance, beginning of period	716	975
Provision	32	44
Charge-offs	(104)	(129)
Recoveries	13	18
Balance, end of period	$ 716	$ 975	657	716	908
Ending allowance balance for loans individually evaluated for impairment			200		293
Ending allowance balance for loans acquired with deteriorated credit quality			0		0
Ending allowance balance for loans collectively evaluated for impairment			457		615
Loans receivable:
Balance of loans individually evaluated for impairment			748		1,056
Balance of loans acquired with deteriorated credit quality			43		3
Balance of loans collectively evaluated for impairment			39,419		66,227
Total Loans			$ 40,210	$ 45,957	$ 67,286

LOANS AND ALLOWANCE FOR LOAN_10

LOANS AND ALLOWANCE FOR LOAN LOSSES - Summary of Recorded Investment and Unpaid Principal Balance for Impairment (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Recorded Investment
With no related allowance recorded	$ 3,179	$ 2,568
With related allowance recorded	703	701
Total loans	3,882	3,269
Unpaid Principal Balance
With no related allowance recorded	3,257	2,630
With related allowance recorded	745	738
Total loans	4,002	3,368
Related Allowance	266	236
Commercial real estate
Unpaid Principal Balance
Related Allowance	66
Total mortgage loans on real estate
Recorded Investment
With no related allowance recorded	2,986	2,277
With related allowance recorded	133
Total loans	3,119	2,277
Unpaid Principal Balance
With no related allowance recorded	3,032	2,316
With related allowance recorded	136
Total loans	3,168	2,316
Related Allowance	66	0
Total mortgage loans on real estate | Construction and development
Recorded Investment
With no related allowance recorded	262	339
With related allowance recorded	133
Total loans	395	339
Unpaid Principal Balance
With no related allowance recorded	281	359
With related allowance recorded	136
Total loans	417	359
Related Allowance	66	0
Total mortgage loans on real estate | 1-4 Family
Recorded Investment
With no related allowance recorded	1,247	1,177
Total loans	1,247	1,177
Unpaid Principal Balance
With no related allowance recorded	1,250	1,180
Total loans	1,250	1,180
Related Allowance	0	0
Total mortgage loans on real estate | Multifamily
Recorded Investment
With no related allowance recorded	109
Total loans	109
Unpaid Principal Balance
With no related allowance recorded	109
Total loans	109
Related Allowance	0
Total mortgage loans on real estate | Commercial real estate
Recorded Investment
With no related allowance recorded	1,368	761
Total loans	1,368	761
Unpaid Principal Balance
With no related allowance recorded	1,392	777
Total loans	1,392	777
Related Allowance	0	0
Commercial and industrial
Recorded Investment
With no related allowance recorded	15	76
Total loans	15	76
Unpaid Principal Balance
With no related allowance recorded	16	77
Total loans	16	77
Related Allowance	0	0
Consumer
Recorded Investment
With no related allowance recorded	178	215
With related allowance recorded	570	701
Total loans	748	916
Unpaid Principal Balance
With no related allowance recorded	209	237
With related allowance recorded	609	738
Total loans	818	975
Related Allowance	$ 200	$ 236

LOANS AND ALLOWANCE FOR LOAN_11

LOANS AND ALLOWANCE FOR LOAN LOSSES - Schedule of Average Recorded Investment And Interest Income Recognized For TDRs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Average Recorded Investment
With no related allowance recorded	$ 2,830	$ 3,192
With related allowance recorded	716	1,249
Total loans	3,546	4,441
Interest Income Recognized
With no related allowance recorded	17	21
With related allowance recorded	0	0
Total loans	17	21
Total mortgage loans on real estate
Average Recorded Investment
With no related allowance recorded	2,565	2,559
With related allowance recorded	134	0
Total loans	2,699	2,559
Interest Income Recognized
With no related allowance recorded	17	21
With related allowance recorded	0	0
Total loans	17	21
Total mortgage loans on real estate | Construction and development
Average Recorded Investment
With no related allowance recorded	264	160
With related allowance recorded	134	0
Total loans	398	160
Interest Income Recognized
With no related allowance recorded	5	2
With related allowance recorded	0	0
Total loans	5	2
Total mortgage loans on real estate | 1-4 Family
Average Recorded Investment
With no related allowance recorded	1,232	1,210
Total loans	1,232	1,210
Interest Income Recognized
With no related allowance recorded	10	11
Total loans	10	11
Total mortgage loans on real estate | Multifamily
Average Recorded Investment
With no related allowance recorded	108	0
Total loans	108	0
Interest Income Recognized
With no related allowance recorded	0	0
Total loans	0	0
Total mortgage loans on real estate | Commercial real estate
Average Recorded Investment
With no related allowance recorded	961	1,189
Total loans	961	1,189
Interest Income Recognized
With no related allowance recorded	2	8
Total loans	2	8
Commercial and industrial
Average Recorded Investment
With no related allowance recorded	20	359
With related allowance recorded	0	387
Total loans	20	746
Interest Income Recognized
With no related allowance recorded	0	0
With related allowance recorded	0	0
Total loans	0	0
Consumer
Average Recorded Investment
With no related allowance recorded	245	274
With related allowance recorded	582	862
Total loans	827	1,136
Interest Income Recognized
With no related allowance recorded	0	0
With related allowance recorded	0	0
Total loans	$ 0	$ 0

LOANS AND ALLOWANCE FOR LOAN_12

LOANS AND ALLOWANCE FOR LOAN LOSSES - Troubled Debt Restructurings Narrative (Details) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2019USD ($)security_loancontract	Mar. 31, 2018contract	Dec. 31, 2018USD ($)security_loancontract
Financing Receivable Modifications [Line Items]
Number of contracts | security_loan	23		24
Recorded investment or loans under troubled debt restructurings | $	$ 2.2		$ 2.2
Number of contracts in nonaccrual loans	3		3
Number of contracts in default	0	0	0
Total mortgage loans on real estate | Commercial real estate
Financing Receivable Modifications [Line Items]
Number of contracts in nonaccrual loans	1		1
Nonaccrual loans | $	$ 0.5		$ 0.5
Total mortgage loans on real estate | Construction and development
Financing Receivable Modifications [Line Items]
Number of contracts in nonaccrual loans	1		1
Nonaccrual loans | $	$ 0.3		$ 0.3
Total mortgage loans on real estate | 1-4 Family
Financing Receivable Modifications [Line Items]
Number of contracts in nonaccrual loans	1		1
Nonaccrual loans | $	$ 0.2		$ 0.2
Troubled Debt Restructuring, Adjustments to Maturity
Financing Receivable Modifications [Line Items]
Number of contracts | security_loan	15
Troubled Debt Restructuring, Reduction in Interest Rate
Financing Receivable Modifications [Line Items]
Number of contracts | security_loan	7
Nonaccrual
Financing Receivable Modifications [Line Items]
Number of contracts | security_loan	1

STOCKHOLDERS' EQUITY (Details)

STOCKHOLDERS' EQUITY (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	$ 182,262	$ 172,729
Net Change	2,043	(1,524)
Ending Balance	203,014	173,430
Unrealized gain (loss), available for sale, net
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(1,647)	(71)
Net Change, before reclassifications	2,212	(1,789)
Ending Balance	565	(1,860)
Reclassification of realized gain, net
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(1,925)	(1,914)
Net Change, reclassification	(2)	0
Ending Balance	(1,927)	(1,914)
Unrealized loss, transfer from available for sale to held to maturity, net
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	5	7
Net Change	0	0
Ending Balance	5	7
Change in fair value of interest rate swap designated as a cash flow hedge, net
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	491	407
Net Change	(167)	265
Ending Balance	324	672
Accumulated other comprehensive loss
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(3,076)	(1,571)
Net Change	2,043	(1,524)
Ending Balance	$ (1,033)	$ (3,095)

STOCK-BASED COMPENSATION - Narr

STOCK-BASED COMPENSATION - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Stock options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock option expense	$ 68	$ 61
Unrecognized compensation cost related to stock options	$ 800
Weighted-average period related to stock compensation	3 years 3 months 25 days
Aggregate intrinsic value of stock options outstanding	$ 2,200
Aggregate intrinsic value of exercisable stock options	$ 1,400
Restricted stock awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average period related to stock compensation	3 years 9 months 16 days
Share-based compensation expense	$ 200	$ 200
Unrecognized compensation cost related to time vested restricted stock award	$ 3,700
Restricted stock awards | Employees
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Requisite service period	5 years
Restricted stock awards | Nonemployee directors
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Requisite service period	2 years
Restricted stock awards | Non-employee directors and certain officers | Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unearned compensation related to awards amortized to compensation expense, vesting period	2 years
Restricted stock awards | Non-employee directors and certain officers | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unearned compensation related to awards amortized to compensation expense, vesting period	5 years
Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Reserve of common stock for grant, award or issuance to directors and employees (in shares)	600,000
Shares available for future grants (in shares)	394,691

STOCK-BASED COMPENSATION - Sche

STOCK-BASED COMPENSATION - Schedule of Assumptions Used for Option Awards Granted (Detail)	3 Months Ended
	Mar. 31, 2019$ / shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Expected dividends	0.82%
Expected volatility	27.26%
Risk-free interest rate	2.63%
Expected term (in years)	6 years 6 months
Weighted-average grant date fair value (in dollars per share)	$ 7.30

STOCK-BASED COMPENSATION - Sc_2

STOCK-BASED COMPENSATION - Schedule of Stock Options Activity (Detail) - Stock options - $ / shares	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Number of Options
Outstanding at beginning of period (in shares)	340,646	322,917
Granted (in shares)	36,984	31,788
Forfeited (in shares)	0	0
Exercised (in shares)	0	(8,001)
Outstanding at end of period (in shares)	377,630	346,704
Exercisable at end of period (in shares)	185,161	123,464
Weighted Average Exercise Price
Outstanding at beginning of period (in dollars per share)	$ 15.98	$ 15.09
Granted (in dollars per share)	24.40	24.30
Forfeited (in dollars per share)	0	0
Exercised (in dollars per share)	0	14
Outstanding at end of period (in dollars per share)	16.81	15.96
Exercisable at end of period (in dollars per share)	$ 15.23	$ 14.77

STOCK-BASED COMPENSATION - Rest

STOCK-BASED COMPENSATION - Restricted Stock Award Activity (Detail) - Restricted stock awards - $ / shares	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Shares
Balance at beginning of period (in shares)	135,848	112,688
Granted (in shares)	76,374	59,093
Forfeited (in shares)	(180)	(1,147)
Earned and issued (in shares)	(34,871)	(23,342)
Balance at end of period (in shares)	177,171	147,292
Weighted Average Grant Date Fair Value
Balance at beginning of period (in dollars per share)	$ 20.47	$ 17.28
Granted (in dollars per share)	24.46	24.33
Forfeited (in dollars per share)	22.30	19.06
Earned and issued (in dollars per share)	20.34	17.53
Balance at end of period (in dollars per share)	$ 22.21	$ 20.06

DERIVATIVE FINANCIAL INSTRUME_2

DERIVATIVE FINANCIAL INSTRUMENTS (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Derivatives Fair Value [Line Items]
Maximum length of time hedged cash flow hedge period	1 year 5 months
Notional amount of derivative contract	$ 50
Gain (loss) on change in fair value of interest rate swaps	(0.2)	$ 0.3
Derivative instrument gain included in accumulated other comprehensive income to be reclassified to earnings	0.3
Interest Rate Swap | Designated As Hedging Instrument | Cash Flow Hedging | Other Assets
Derivatives Fair Value [Line Items]
Fair value of derivative asset	$ 0.4

FAIR VALUES OF FINANCIAL INST_3

FAIR VALUES OF FINANCIAL INSTRUMENTS - Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Assets:
Investment securities	$ 264,257	$ 248,981
Fair Value, Measurements, Recurring
Assets:
Derivative financial instruments	411	622
Total assets	266,539	251,302
Fair Value, Measurements, Recurring | Obligations of U.S. government agencies and corporations
Assets:
Investment securities	7,260	7,870
Fair Value, Measurements, Recurring | Obligations of state and political subdivisions
Assets:
Investment securities	31,510	33,986
Fair Value, Measurements, Recurring | Corporate bonds
Assets:
Investment securities	18,352	15,509
Fair Value, Measurements, Recurring | Residential mortgage-backed securities
Assets:
Investment securities	146,755	134,927
Fair Value, Measurements, Recurring | Commercial mortgage-backed securities
Assets:
Investment securities	60,380	56,689
Fair Value, Measurements, Recurring | Equity securities
Assets:
Equity securities	1,871	1,699
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Derivative financial instruments	0	0
Total assets	1,871	1,699
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Obligations of U.S. government agencies and corporations
Assets:
Investment securities	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Obligations of state and political subdivisions
Assets:
Investment securities	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate bonds
Assets:
Investment securities	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Residential mortgage-backed securities
Assets:
Investment securities	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial mortgage-backed securities
Assets:
Investment securities	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Equity securities
Assets:
Equity securities	1,871	1,699
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Assets:
Derivative financial instruments	411	622
Total assets	244,440	229,460
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Obligations of U.S. government agencies and corporations
Assets:
Investment securities	7,260	7,870
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Obligations of state and political subdivisions
Assets:
Investment securities	12,609	15,178
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Corporate bonds
Assets:
Investment securities	17,025	14,174
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Residential mortgage-backed securities
Assets:
Investment securities	146,755	134,927
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Commercial mortgage-backed securities
Assets:
Investment securities	60,380	56,689
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Equity securities
Assets:
Equity securities	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Assets:
Derivative financial instruments	0	0
Total assets	20,228	20,143
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Obligations of U.S. government agencies and corporations
Assets:
Investment securities	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Obligations of state and political subdivisions
Assets:
Investment securities	18,901	18,808
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Corporate bonds
Assets:
Investment securities	1,327	1,335
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Residential mortgage-backed securities
Assets:
Investment securities	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Commercial mortgage-backed securities
Assets:
Investment securities	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Equity securities
Assets:
Equity securities	$ 0	$ 0

FAIR VALUES OF FINANCIAL INST_4

FAIR VALUES OF FINANCIAL INSTRUMENTS - Summary of Assets Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	$ 20,143	$ 20,868
Realized gains (losses) included in earnings	0	0
Unrealized gains (losses) included in other comprehensive income	108	(309)
Purchases	0	0
Sales	0	0
Maturities, prepayments, and calls	(23)
Transfers into level 3	0	0
Transfers out of level 3	0	0
Balance at end of period	20,228	20,559
Obligations of state and political subdivisions
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	18,808	19,543
Realized gains (losses) included in earnings	0	0
Unrealized gains (losses) included in other comprehensive income	116	(328)
Purchases	0	0
Sales	0	0
Maturities, prepayments, and calls	(23)
Transfers into level 3	0	0
Transfers out of level 3	0	0
Balance at end of period	18,901	19,215
Corporate bonds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	1,335	1,325
Realized gains (losses) included in earnings	0	0
Unrealized gains (losses) included in other comprehensive income	(8)	19
Purchases	0	0
Sales	0	0
Transfers into level 3	0	0
Transfers out of level 3	0	0
Balance at end of period	$ 1,327	$ 1,344

FAIR VALUES OF FINANCIAL INST_5

FAIR VALUES OF FINANCIAL INSTRUMENTS - Narrative (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Liabilities measured on nonrecurring basis	$ 0	$ 0

FAIR VALUES OF FINANCIAL INST_6

FAIR VALUES OF FINANCIAL INSTRUMENTS - Summary of Assets Measured at Fair Value on a Nonrecurring Basis (Detail) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impaired loans	$ 148	$ 383
Other real estate owned		$ 3,270
Other real estate owned
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Discount rate		15.00%
Minimum | Impaired loans
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Discount rate	0.00%	0.00%
Maximum | Impaired loans
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Discount rate	100.00%	100.00%
Weighted Average Discount | Impaired loans
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Discount rate	29.00%	15.00%
Weighted Average Discount | Other real estate owned
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Discount rate		15.00%

FAIR VALUES OF FINANCIAL INST_7

FAIR VALUES OF FINANCIAL INSTRUMENTS - Summary of Estimated Fair Values of Company's Financial Instruments (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Financial assets:
Federal funds sold		$ 6
Investment securities	$ 264,257	248,981
Financial liabilities:
Junior subordinated debt	5,858	5,845
Carrying Amount
Financial assets:
Cash and due from banks	70,041	17,134
Federal funds sold	2,362
Investment securities	280,073	265,047
Equity securities	14,392	13,562
Loans, net of allowance	1,485,277	1,391,371
Derivative financial instruments	411	622
Financial liabilities:
Deposits, noninterest-bearing	285,811	217,457
Deposits, interest-bearing	1,246,982	1,144,274
FHLB short-term advances and repurchase agreements	184,818	205,399
FHLB long-term advances	2,493	3,090
Junior subordinated debt	5,858	5,845
Subordinated debt	18,600	18,600
Estimated Fair Value
Financial assets:
Cash and due from banks	70,041	17,134
Federal funds sold	2,362	6
Investment securities	279,984	264,786
Equity securities	14,392	13,562
Loans, net of allowance	1,456,083	1,374,292
Derivative financial instruments	411	622
Financial liabilities:
Deposits, noninterest-bearing	285,811	217,457
Deposits, interest-bearing	1,210,389	1,095,639
FHLB short-term advances and repurchase agreements	184,818	205,399
FHLB long-term advances	2,104	2,712
Junior subordinated debt	7,599	7,420
Subordinated debt	19,422	19,187
Level 1 | Estimated Fair Value
Financial assets:
Cash and due from banks	70,041	17,134
Federal funds sold	2,362	6
Investment securities	0	0
Equity securities	1,871	1,699
Loans, net of allowance	0	0
Derivative financial instruments	0	0
Financial liabilities:
Deposits, noninterest-bearing	0	0
Deposits, interest-bearing	0	0
FHLB short-term advances and repurchase agreements	0	0
FHLB long-term advances	0	0
Junior subordinated debt	0	0
Subordinated debt	0	0
Level 2 | Estimated Fair Value
Financial assets:
Cash and due from banks	0	0
Federal funds sold	0	0
Investment securities	249,198	234,053
Equity securities	12,521	11,863
Loans, net of allowance	0	0
Derivative financial instruments	411	622
Financial liabilities:
Deposits, noninterest-bearing	285,811	217,457
Deposits, interest-bearing	0	0
FHLB short-term advances and repurchase agreements	184,818	205,399
FHLB long-term advances	0	0
Junior subordinated debt	0	0
Subordinated debt	19,422	19,187
Level 3 | Estimated Fair Value
Financial assets:
Cash and due from banks	0	0
Federal funds sold	0	0
Investment securities	30,786	30,733
Equity securities	0	0
Loans, net of allowance	1,456,083	1,374,292
Derivative financial instruments	0	0
Financial liabilities:
Deposits, noninterest-bearing	0	0
Deposits, interest-bearing	1,210,389	1,095,639
FHLB short-term advances and repurchase agreements	0	0
FHLB long-term advances	2,104	2,712
Junior subordinated debt	7,599	7,420
Subordinated debt	$ 0	$ 0

INCOME TAXES - Summary of Expen

INCOME TAXES - Summary of Expense for Income Taxes and Effective Tax Rate Included in Consolidated Statement of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income tax expense	$ 952	$ 1,341
Effective tax rate	19.60%	35.80%

INCOME TAXES - Narrative (Detai

INCOME TAXES - Narrative (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2018		Dec. 31, 2018
Income Tax Disclosure [Abstract]
Additional income tax expense	$ 557,000	[1]	$ 0
[1]	The Tax Cuts and Jobs Act, enacted on December 22, 2017, required the revaluation of the Company’s deferred tax assets and liabilities as of December 31, 2017 as a result of the lower corporate tax rates to be realized beginning January 1, 2018. The $0.6 million adjustment to retained earnings for the period ended March 31, 2018 represents a reclassification of the tax effects of the Tax Cuts and Jobs Act.

COMMITMENTS AND CONTINGENCIES -

COMMITMENTS AND CONTINGENCIES - Narrative (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Unfunded loan commitments	$ 85	$ 66
Unfunded commitments in SBIC qualified funds	$ 100

COMMITMENTS AND CONTINGENCIES_2

COMMITMENTS AND CONTINGENCIES - Summary of Commitments to Extend Credit (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Standby letters of credit
Loss Contingencies [Line Items]
Commitments to extend credit	$ 11,127	$ 11,114
Loan commitments
Loss Contingencies [Line Items]
Commitments to extend credit	$ 269,707	$ 263,002

LEASES - Narrative (Details)

LEASES - Narrative (Details)	3 Months Ended
	Mar. 31, 2019USD ($)	Mar. 31, 2018USD ($)	Mar. 01, 2019branch_location	Feb. 28, 2019branch_location
Lessee, Lease, Description [Line Items]
Number of branches leased | branch_location				1
Operating lease expense | $		$ 0
ROU assets | $	$ 2,500,000
Lease liabilities | $	$ 2,500,000
Minimum
Lessee, Lease, Description [Line Items]
Remaining terms	5 years
Maximum
Lessee, Lease, Description [Line Items]
Remaining terms	13 years
Mainland
Lessee, Lease, Description [Line Items]
Number of branches leased | branch_location			2
Increase in number of branches from acquisition | branch_location			3

LEASES - Quantitative Informati

LEASES - Quantitative Information Regarding Operating Leases (Details)	3 Months Ended
	Mar. 31, 2019USD ($)
Leases [Abstract]
Total operating lease cost	$ 44,000
Weighted-average remaining lease term (in years)	11 years 3 months 2 days
Weighted-average discount rate	3.50%

LEASES - Future Minimum Lease P

LEASES - Future Minimum Lease Payments Due Under Non-Cancelable Operating Leases (Details) $ in Thousands	Mar. 31, 2019USD ($)
Leases [Abstract]
2019	$ 204
2020	289
2021	294
2022	299
2023	297
Thereafter	1,672
Total	$ 3,055

Uncategorized Items - istr-2019

Label	Element	Value	[1]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (5,000)
Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (5,000)
[1]	Represents the impact of adopting Accounting Standards Update (“ASU”) No. 2016-01, Financial Instruments - Overall (Topic 825), which requires equity investments, other than equity method investments, to be measured at fair value with changes in fair value recognized in net income. Upon adoption on January 1, 2018, the ASU required a cumulative-effect adjustment to retained earnings to reclassify the cumulative change in the fair value of equity securities previously recognized in accumulated other comprehensive income.