Investar Holding (ISTR) 10-Q 9 Nov 18 2018 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2018	Nov. 07, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q3
Trading Symbol	ISTR
Entity Registrant Name	Investar Holding Corp
Entity Central Index Key	1,602,658
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		9,546,003

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
ASSETS
Cash and due from banks	$ 21,151	$ 19,619
Interest-bearing balances due from other banks	3,352	10,802
Federal funds sold	285	0
Cash and cash equivalents	24,788	30,421
Available for sale securities at fair value (amortized cost of $238,443 and $220,077, respectively)	230,747	217,564
Held to maturity securities at amortized cost (estimated fair value of $16,691 and $17,947, respectively)	17,030	17,997
Loans, net of allowance for loan losses of $9,021 and $7,891, respectively	1,349,391	1,250,888
Equity securities	12,671	9,798
Bank premises and equipment, net of accumulated depreciation of $9,332 and $7,825, respectively	39,831	37,540
Other real estate owned, net	4,227	3,837
Accrued interest receivable	5,073	4,688
Deferred tax asset	1,768	1,294
Goodwill and other intangible assets, net	19,902	19,926
Bank owned life insurance	23,702	23,231
Other assets	6,185	5,550
Total assets	1,735,315	1,622,734
Deposits:
Noninterest-bearing	214,190	216,599
Interest-bearing	1,081,431	1,008,638
Total deposits	1,295,621	1,225,237
Advances from Federal Home Loan Bank	208,083	166,658
Repurchase agreements	17,931	21,935
Subordinated debt, net of unamortized issuance costs	18,203	18,168
Junior subordinated debt	5,832	5,792
Accrued taxes and other liabilities	11,238	12,215
Total liabilities	1,556,908	1,450,005
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; 9,545,701 and 9,514,926 shares issued and outstanding, respectively	9,546	9,515
Surplus	131,333	131,582
Retained earnings	42,868	33,203
Accumulated other comprehensive loss	(5,340)	(1,571)
Total stockholders’ equity	178,407	172,729
Total liabilities and stockholders’ equity	$ 1,735,315	$ 1,622,734

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Available-for-sale securities at fair value, amortized cost	$ 238,443	$ 220,077
Held-to-maturity securities at amortized cost, estimated fair value	16,691	17,947
Allowance for loan losses	9,021	7,891
Bank premises and equipment, accumulated depreciation	$ 9,332	$ 7,825
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)	9,545,701	9,514,926
Common stock, shares outstanding (in shares)	9,545,701	9,514,926

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
INTEREST INCOME
Interest and fees on loans	$ 16,905	$ 12,893	$ 48,754	$ 33,456
Interest on investment securities	1,710	1,399	4,813	3,627
Other interest income	162	150	397	296
Total interest income	18,777	14,442	53,964	37,379
INTEREST EXPENSE
Interest on deposits	2,994	2,137	7,673	5,817
Interest on borrowings	1,398	767	3,728	1,862
Total interest expense	4,392	2,904	11,401	7,679
Net interest income	14,385	11,538	42,563	29,700
Provision for loan losses	785	420	1,977	1,145
Net interest income after provision for loan losses	13,600	11,118	40,586	28,555
NONINTEREST INCOME
Service charges on deposit accounts	368	281	1,054	474
Gain on sale of investment securities, net	15	27	37	242
Gain on sale of fixed assets, net	9	160	98	184
(Loss) gain on sale of other real estate owned, net	0	37	(4)	32
Servicing fees and fee income on serviced loans	232	352	773	1,153
Other operating income	593	310	1,524	768
Total noninterest income	1,217	1,167	3,482	2,853
Income before noninterest expense	14,817	12,285	44,068	31,408
NONINTEREST EXPENSE
Depreciation and amortization	644	542	1,871	1,309
Salaries and employee benefits	6,646	5,136	19,189	13,195
Occupancy	337	317	1,052	826
Data processing	493	446	1,600	1,169
Marketing	71	124	153	271
Professional fees	281	263	764	726
Acquisition expense	0	824	1,104	1,049
Other operating expenses	1,782	1,470	5,243	4,189
Total noninterest expense	10,254	9,122	30,976	22,734
Income before income tax expense	4,563	3,163	13,092	8,674
Income tax expense	516	1,032	2,823	2,756
Net income	$ 4,047	$ 2,131	$ 10,269	$ 5,918
EARNINGS PER SHARE
Basic earnings per share (in dollars per share)	$ 0.42	$ 0.24	$ 1.06	$ 0.72
Diluted earnings per share (in dollars per share)	0.41	0.24	1.05	0.71
Cash dividends declared per common share (in dollars per share)	$ 0.05	$ 0.03	$ 0.12	$ 0.07

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 4,047	$ 2,131	$ 10,269	$ 5,918
Unrealized gain (loss) on investment securities:
Unrealized (loss) gain, available for sale, net of tax (benefit) expense of ($410), $51, ($1,081) and $711, respectively	(1,542)	95	(4,065)	1,320
Reclassification of realized gain, net of tax expense of $3, $10, $7 and $85, respectively	(12)	(18)	(29)	(157)
Unrealized loss, transfer from available for sale to held to maturity, net of tax benefit of $0 for all respective periods	0	0	(1)	(1)
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 ($3), $20, $87 and $62, respectively	(11)	37	326	114
Total other comprehensive (loss) income	(1,565)	114	(3,769)	1,276
Total comprehensive income	$ 2,482	$ 2,245	$ 6,500	$ 7,194

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
Unrealized gain (loss), available for sale, tax expense (benefit)	$ (410)	$ 51	$ (1,081)	$ 711
Reclassification of realized gains, tax expense	3	10	7	85
Unrealized loss, transfer from available for sale, tax expense (benefit)	0	0	0	0
Change in fair value of interest rate swap designated as a cash flow hedge, net of tax expense (benefit)	$ (3)	$ 20	$ 87	$ 62

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands		Total	Common Stock [Member]	Surplus [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance at Dec. 31, 2016		$ 112,757	$ 7,102	$ 81,499	$ 26,227	$ (2,071)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Common stock issued in offering, net of direct costs of $1,991		32,509	1,624	30,885
Surrendered shares		(166)	(8)	(158)
Shares repurchased		(264)	(12)	(252)
Options and warrants exercised		889	67	822
Dividends declared		(637)			(637)
Stock-based compensation and other activity		587	(68)	655
Net tax effect of stock-based compensation		7		7
Net income		5,918			5,918
Other comprehensive income (loss), net		1,276				1,276
Ending Balance at Sep. 30, 2017		152,876	8,705	113,458	31,508	(795)
Beginning Balance at Jun. 30, 2017						(909)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Net income		2,131
Other comprehensive income (loss), net		114				114
Ending Balance at Sep. 30, 2017		152,876	8,705	113,458	31,508	(795)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Reclassification of tax effects of the Tax Cuts and Jobs Act		300
Ending Balance at Dec. 31, 2017		172,729	9,515	131,582	33,203	(1,571)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Surrendered shares		(221)	(9)	(212)
Shares repurchased		(1,833)	(71)	(1,762)
Options and warrants exercised		1,037	77	960
Dividends declared		(1,156)			(1,156)
Stock-based compensation and other activity		799	34	765
Reclassification of tax effects of the Tax Cuts and Jobs Act	[1]	557			557
Net income		10,269			10,269
Other comprehensive income (loss), net		(3,769)				(3,769)
Ending Balance at Sep. 30, 2018		178,407	9,546	131,333	42,868	(5,340)
Beginning Balance at Jun. 30, 2018						(3,775)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Net income		4,047
Other comprehensive income (loss), net		(1,565)				(1,565)
Ending Balance at Sep. 30, 2018		178,407	$ 9,546	$ 131,333	42,868	$ (5,340)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Impact of adoption of new accounting standards	[2]	$ (5)			$ (5)
[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 September 30, 2018 represents a reclassification of the tax effects of the Tax Cuts and Jobs Act.
[2]	Represents the impact of adopting Accounting Standards Update (“ASU”) No. 2016-01. See Note 1 to the consolidated financial statements for more information.

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) $ in Thousands	9 Months Ended
	Sep. 30, 2017USD ($)$ / shares
Statement of Stockholders' Equity [Abstract]
Cash dividends declared per common share (in dollars per share) | $ / shares	$ 0.07
Stock issuance costs | $	$ 1,991

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Net income
Net income	$ 10,269	$ 5,918
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,871	1,309
Provision for loan losses	1,977	1,145
Amortization of purchase accounting adjustments	(1,854)	(234)
Provision for other real estate owned	0	183
Net amortization of securities	449	834
Gain on sale of investment securities, net	(37)	(242)
Gain on sale of fixed assets, net	(98)	(184)
Loss (gain) on sale of other real estate owned, net	4	(32)
FHLB stock dividend	(162)	(65)
Stock-based compensation	799	587
Deferred taxes	820	(210)
Net change in value of bank owned life insurance	(471)	(154)
Amortization of subordinated debt issuance costs	35	23
Unrealized gain on equity securities	(22)	0
Net change in:
Accrued interest receivable	(385)	(276)
Other assets	290	(195)
Accrued taxes and other liabilities	(1,335)	(1,045)
Net cash provided by operating activities	12,150	7,362
Cash flows from investing activities:
Proceeds from sales of investment securities available for sale	7,021	82,537
Purchases of securities available for sale	(48,886)	(95,614)
Proceeds from maturities, prepayments and calls of investment securities available for sale	22,254	19,702
Proceeds from maturities, prepayments and calls of investment securities held to maturity	930	741
Proceeds from redemption or sale of equity securities	1,047	1,307
Purchase of equity securities	(2,870)	(3,624)
Net increase in loans	(99,225)	(88,313)
Proceeds from sales of other real estate owned	37	513
Proceeds from the sales of fixed assets	19	601
Purchases of other real estate owned	(227)	0
Purchases of fixed assets	(3,878)	(1,214)
Purchase of other investments	(119)	(624)
Distributions from investments	31	12
Cash paid for Citizens, net of cash acquired	0	(1,235)
Net cash used in investing activities	(123,866)	(85,211)
Cash flows from financing activities:
Net increase (decrease) in customer deposits	70,515	(18,603)
Net decrease in repurchase agreements	(4,004)	(14,195)
Net increase in short-term FHLB advances	22,500	38,500
Proceeds from long-term FHLB advances	75,000	45,000
Repayment of long-term FHLB advances	(56,100)	(3,603)
Cash dividends paid on common stock	(1,032)	(457)
Proceeds from public offering of common stock, net of issuance costs	0	32,509
Proceeds from stock options and warrants exercised	1,037	889
Payments to repurchase common stock	(1,833)	(264)
Proceeds from other borrowings	0	78
Repayment of other borrowings	0	(1,078)
Proceeds from subordinated debt, net of issuance costs	0	18,133
Net cash provided by financing activities	106,083	96,909
Net change in cash and cash equivalents	(5,633)	19,060
Cash and cash equivalents, beginning of period	30,421	29,448
Cash and cash equivalents, end of period	$ 24,788	$ 48,508

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	9 Months Ended
	Sep. 30, 2018
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 and nine month periods ended September 30, 2018 are 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, 2017 , 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 16, 2018. 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 market is South Louisiana. At September 30, 2018 , the Company operated 20 full service banking offices located throughout its market and had 253 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 other liabilities in the balance sheet. At September 30, 2018 and December 31, 2017 the reserve for unfunded loan commitments was $101,000 and $32,000 , 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 nine months ended September 30, 2018 and 2017, 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 nine months ended September 30, 2018 or 2017. Reclassifications Certain reclassifications have been made to the 2017 financial statements to be consistent with the 2018 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 South 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 provides a measurement period of up to one year from the enactment date to complete the accounting. Any adjustments during this measurement period will be included in net earnings from continuing operations as an adjustment to income tax expense in the reporting period when such adjustments are determined. Based on the information available and current 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. The amount recorded in the fourth quarter of 2017 related to the remeasurement of the Company’s deferred tax balance and resulted in additional income tax expense of $0.3 million . An additional $0.6 million was expensed in the first quarter of 2018 due to the remeasurement of the Company’s deferred tax balance. Accounting Standards Adopted in 2018 FASB ASC Topic 230 “Statement of Cash Flows – Classification of Certain Cash Receipts and Cash Payments” Update No. 2016-15 (“ASU 2016-15”). The FASB issued ASU 2016-15 in August 2016. The amendments in the ASU address eight specific cash flow issues with the objective of reducing the existing diversity in practice, as the issues are either unclear or do not have specific guidance under current GAAP. ASU 2016-15 became effective for the Company on January 1, 2018 and did not have a material impact on the Company’s consolidated financial statements. FASB ASC Topic 825 “Financial Instruments – Overall” Update No. 2016-01 (“ASU 2016-01”). ASU 2016-01 makes targeted amendments to the guidance for recognition, measurement, presentation and disclosure of financial instruments. ASU 2016-01 requires equity investments, other than equity method investments, to be measured at fair value with changes in fair value recognized in net income. The ASU requires a cumulative-effect adjustment to retained earnings as of the beginning of the reporting period of adoption to reclassify the cumulative change in fair value of equity securities previously recognized in accumulated other comprehensive income (AOCI). ASU 2016-01 became effective for the Company on January 1, 2018. The adoption of the guidance resulted in an insignificant cumulative-effect adjustment that decreased retained earnings, with offsetting related adjustments to deferred taxes and AOCI. The adoption of this ASU also resulted in equity securities previously classified as AFS securities to be classified as equity securities at fair value in the Company’s September 30, 2018 Consolidated Balance Sheet. ASU 2016-01 also emphasizes the existing requirement to use exit prices to measure fair value for disclosure purposes and clarifies that entities should not make use of a practicability exception in determining the fair value of loans. Accordingly, we refined the calculation used to determine the disclosed fair value of our loans held for investment portfolio as part of adopting this standard. The refined calculation did not have a significant impact on our fair value disclosures. See Note 9. Fair Values of Financial Instruments. As a result of the adoption of ASU 2016-01, $1.4 million of equity securities was reclassified from AFS securities to equity securities in the first quarter of 2018. At September 30, 2018, equity securities include $0.6 million of exchange-traded equity securities that are measured at fair value with changes in fair value recognized in net income. The remaining balance of equity securities at September 30, 2018 consists of stock in correspondent banks and is measured at cost, adjusted for any observable market transactions less any impairment. ASU 2016-01 also requires that other investments previously accounted for using the cost method be measured at fair value with changes in fair value recognized in net income. These investments, which had a $1.4 million balance at September 30, 2018, are included in other assets in the consolidated balance sheet and represent investments in small business investment companies without readily determinable fair values. These investments are measured at fair value using the net asset value of the investment and any changes in fair value are recognized in net income. FASB ASC Topic 606 “Revenue from Contracts with Customers” Update No. 2014-09 (“ASU 2014-09”). ASU 2014-09 was effective for the Company on January 1, 2018. ASU 2014-09 amends existing guidance related to revenue from contracts with customers by (i) creating a single framework for recognizing revenue from contracts with customers that fall within its scope and (ii) revising when it is appropriate to recognize a gain (loss) from the transfer of nonfinancial assets, such as other real estate owned (“OREO”). The Company adopted ASU 2014-09 using the modified retrospective method applied to all contracts not completed as of January 1, 2018. Results for reporting periods beginning after January 1, 2018 are presented under the new guidance while prior period amounts continue to be reported in accordance with legacy GAAP. The adoption of ASU 2014-09 did not result in a significant change to the accounting for any in-scope revenue streams. As such, no cumulative effect adjustment was recorded. The majority of the Company’s revenues comes from interest income from loans and securities, which falls outside the scope of ASU 2014-09. The Company’s services that fall within the scope of ASU 2014-09 are primarily included within noninterest income in the consolidated income statements and are recognized as revenue as the Company satisfies its obligation to the customer. Services within the scope of the new guidance include service charges on deposit accounts, interchange fees and other fees, and the sale of OREO. The adoption of this ASU was not significant to the Company and had no material effect on how the Company recognizes revenue nor did it result in any presentation changes to the 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 718 “Compensation - Stock Compensation: Improvements to Nonemployees Share-Based Payment Accounting” Update No. 2018-07. In June 2018, the FASB issued ASU 2018-07, which expands the scope of Topic 718 (which currently only includes share-based payments to employees) to include share-based payments issued to nonemployees for goods or services. As this ASU becomes effective, the accounting for share-based payments for nonemployees and employees will be substantially the same. The ASU supersedes Subtopic 505-50, “Equity – Equity-Based Payments to Non-Employees”. ASU 2018-07 is effective for the Company on January 1, 2019. The adoption of ASU 2018-07 is not expected to have a material impact on the Company’s consolidated financial statements. FASB ASC Topic 815 “Derivatives and Hedging” Update No. 2017-12. The FASB issued ASU No. 2017-12 in August 2017. The ASU 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 is effective for the Company on January 1, 2019, and, given the current level of derivatives designated as hedges, is not expected to have a material impact on our consolidated operating results or financial condition. FASB ASC Subtopic 310-20 “Receivables – Nonrefundable Fees and Other Costs, Premium Amortization on Purchased Callable Debt Securities” Update No. 2017-08. The FASB issued ASU No. 2017-08 in March 2017. 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. Update 2017-08 will be effective for the Company beginning January 1, 2019. Early adoption is permitted, including adoption in an interim period. If an entity early adopts in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. The amendments should be applied on a modified retrospective basis, with a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. The Company is assessing the impact of ASU 2017-08 on its accounting and disclosures. 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 amendments introduce an impairment model that is based on expected credit losses, rather than incurred losses, to estimate credit losses on certain types of financial instruments (e.g., loans and held-to-maturity securities), including certain off-balance sheet financial instruments (e.g., loan commitments). The expected credit losses should consider historical information, current information, and reasonable and supportable forecasts, including estimates of prepayments, over the contractual term. Financial instruments with similar risk characteristics may be grouped together when estimating expected credit losses. The ASU also amends the current AFS security impairment model for debt securities. The new model will require an estimate of expected credit losses when the fair value is below the amortized cost of the asset through the use of an allowance to record estimated credit losses (and subsequent recoveries). Non-credit related losses will continue to be recognized through other comprehensive income. In addition, the amendments provide for a simplified accounting model for purchased financial assets with a more-than-insignificant amount of credit deterioration since their origination. The initial estimate of expected credit losses would be recognized through an allowance for loan losses with an offset (i.e., increase) to the cost basis of the related financial asset at acquisition. ASU 2016-13 will be effective for the Company beginning January 1, 2020. The amendments will be applied through a modified-retrospective approach, resulting in a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective. A prospective transition approach is required for debt securities for which other-than-temporary impairment had been recognized before the effective date. Amounts previously

BUSINESS COMBINATIONS

BUSINESS COMBINATIONS	9 Months Ended
	Sep. 30, 2018
Business Combinations [Abstract]
BUSINESS COMBINATIONS	BUSINESS COMBINATIONS Citizens Bancshares, Inc. On July 1, 2017, the Company completed the acquisition of Citizens Bancshares, Inc. (“Citizens”) and its wholly-owned subsidiary, Citizens Bank, located in Evangeline Parish, Louisiana. The Company acquired 100% of Citizens’ outstanding common shares for an aggregate amount of cash consideration equal to $45.8 million , or approximately $419.20 per share. The acquisition of Citizens expanded the Company’s branch footprint in Louisiana and increased the core deposit base to help position the Company to continue to grow. There were certain adjustments to the initial calculation of goodwill during the open measurement period in 2018 which were not material. As consideration paid was in excess of the net fair value of acquired assets, the Company recorded $9.1 million of goodwill. The table below shows the allocation of the consideration paid for Citizens’ common equity to the acquired identifiable assets and liabilities assumed and the goodwill generated from the transaction (dollars in thousands). Purchase price: Cash paid $ 45,800 Fair value of assets acquired: Cash and cash equivalents 44,565 Investment securities 69,912 Loans 129,181 Bank premises and equipment 3,307 Core deposit intangible asset 1,462 Other assets 2,223 Total assets acquired 250,650 Fair value of liabilities acquired: Deposits 212,228 Other liabilities 1,675 Total liabilities assumed 213,903 Fair value of net assets acquired 36,747 Goodwill $ 9,053 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. The tables below present information about the loans acquired with deteriorated credit quality from Citizens as of the date of acquisition (dollars in thousands). Purchase Credit Impaired Contractually required principal $ 5,123 Non-accretable difference (700 ) Cash flows expected to be collected 4,423 Accretable yield — Fair value of acquired loans $ 4,423 BOJ Bancshares, Inc. On December 1, 2017, the Company completed the acquisition of BOJ Bancshares, Inc. (“BOJ”) and its wholly-owned subsidiary, The Highlands Bank, located in East Feliciana Parish, Louisiana. The Company acquired 100% of BOJ’s outstanding common shares for an aggregate merger consideration consisting of $3.95 million in cash, and an aggregate of 799,559 shares of the Company’s common stock, for a total of approximately $22.7 million . As with the Citizens acquisition, the acquisition of BOJ expanded the Company’s branch footprint in Louisiana, allowing us to serve more customers in our surrounding market areas. After fair value adjustments, including total adjustments of $(0.3) million to loans, bank premises and equipment, other assets, and deposits recorded during the open measurement period in 2018, the acquisition added $152.1 million in total assets, $102.4 million in loans, and $125.8 million in deposits. As consideration paid was in excess of the net fair value of acquired assets, the Company recorded $5.7 million of goodwill. The table below shows the allocation of the consideration paid for BOJ’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: Cash paid $ 3,950 Stock Issued 18,749 Fair value of assets acquired: Cash and cash equivalents 26,438 Investment securities 16,194 Loans 102,393 Bank premises and equipment 3,725 Core deposit intangible asset 1,018 Other assets 2,375 Total assets acquired 152,143 Fair value of liabilities acquired: Deposits 125,788 FHLB advances 5,956 Trust preferred 2,178 Other liabilities 1,209 Total liabilities assumed 135,131 Fair value of net assets acquired 17,012 Goodwill $ 5,687 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. The table below presents information about the loans acquired with deteriorated credit quality from BOJ as of the date of acquisition (dollars in thousands). Purchase Credit Impaired Contractually required principal $ 4,557 Non-accretable difference (671 ) Cash flows expected to be collected 3,886 Accretable yield — Fair value of acquired loans $ 3,886 Supplemental Unaudited Pro Forma Information The following unaudited supplemental pro forma information is presented to show estimated results assuming Citizens and BOJ were acquired as of January 1, 2017. These unaudited pro forma results are not necessarily indicative of the operating results that the Company would have achieved had it completed the acquisitions as of January 1, 2017 and should not be considered representative of future operating results. The pro forma net income for the three months ended September 30, 2017 excludes the tax-affected amount of $0.7 million of acquisition expenses recorded in noninterest expense by the Company and BOJ. The pro forma net income for the nine months ended September 30, 2017 excludes the tax-affected amount of $1.5 million of acquisition expenses recorded in noninterest expense by the Company, Citizens, and BOJ. Unaudited Pro Forma for the Three months ended September 30, Nine months ended September 30, (dollars in thousands) 2017 2017 Interest income $ 15,966 $ 46,065 Noninterest income 1,436 4,106 Net income 3,001 8,206 For the three months ended September 30, 2018 , the acquired companies added approximately $3.3 million , $0.4 million , and $1.1 million to interest income, noninterest income, and net income, respectively. For the nine months ended September 30, 2018 , the acquired companies added approximately $10.5 million , $1.2 million , and $2.5 million to interest income, noninterest income, and net income, respectively. Acquisition Expense There were no acquisition expenses recorded in the three months ended September 30, 2018 . Acquisition related costs of $1.1 million are included in acquisition expenses in the accompanying consolidated statements of income for the nine months ended September 30, 2018 . These costs include system conversion and integrating operations charges as well as legal and consulting expenses.

EARNINGS PER SHARE

EARNINGS PER SHARE	9 Months Ended
	Sep. 30, 2018
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 and nine months ended September 30, 2018 and 2017 (in thousands, except share data). Three months ended September 30, Nine months ended September 30, 2018 2017 2018 2017 Earnings per common share - basic Net income allocated to common shareholders $ 3,990 $ 2,131 $ 10,125 $ 5,918 Weighted-average basic shares outstanding 9,563,550 8,702,559 9,545,436 8,203,645 Basic earnings per common share $ 0.42 $ 0.24 $ 1.06 $ 0.72 Earnings per common share - diluted Net income allocated to common shareholders $ 3,990 $ 2,131 $ 10,126 $ 5,918 Weighted-average basic shares outstanding 9,563,550 8,702,559 9,545,436 8,203,645 Dilutive effect of securities 119,330 94,958 133,503 76,350 Total weighted average diluted shares outstanding 9,682,880 8,797,517 9,678,939 8,279,995 Diluted earnings per common share $ 0.41 $ 0.24 $ 1.05 $ 0.71 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 September 30, Nine months ended September 30, 2018 2017 2018 2017 Stock Options 31,788 36,177 24,918 28,138

INVESTMENT SECURITIES

INVESTMENT SECURITIES	9 Months Ended
	Sep. 30, 2018
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 September 30, 2018 Obligations of U.S. government agencies and corporations $ 8,098 $ 2 $ (232 ) $ 7,868 Obligations of state and political subdivisions 35,060 3 (1,102 ) 33,961 Corporate bonds 16,022 22 (500 ) 15,544 Residential mortgage-backed securities 120,778 11 (3,813 ) 116,976 Commercial mortgage-backed securities 58,485 4 (2,091 ) 56,398 Total $ 238,443 $ 42 $ (7,738 ) $ 230,747 Amortized Cost Gross Gross Fair December 31, 2017 Obligations of U.S. government agencies and corporations $ 8,241 $ 8 $ (81 ) $ 8,168 Obligations of state and political subdivisions 35,572 87 (422 ) 35,237 Corporate bonds 16,428 112 (330 ) 16,210 Residential mortgage-backed securities 110,690 58 (1,270 ) 109,478 Commercial mortgage-backed securities 48,299 16 (686 ) 47,629 Equity securities 847 24 (29 ) 842 Total $ 220,077 $ 305 $ (2,818 ) $ 217,564 The amortized cost and approximate fair value balances of obligations of U.S. government agencies and corporations at December 31, 2017 reflect reclasses of small business association securities that are collateralized by commercial mortgages and backed by the U.S. government. These securities were included in the commercial mortgage-backed securities category of our investment portfolio at December 31, 2017 to conform with the presentation of balances at September 30, 2018 . 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 September 30, Nine months ended September 30, 2018 2017 2018 2017 Proceeds from sale $ 7,021 $ 63,488 $ 7,021 $ 82,537 Gross gains $ 35 $ 27 $ 35 $ 275 Gross losses $ (20 ) $ — $ (20 ) $ (33 ) 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 September 30, 2018 Obligations of state and political subdivisions $ 11,531 $ — $ (109 ) $ 11,422 Residential mortgage-backed securities 5,499 — (230 ) 5,269 Total $ 17,030 $ — $ (339 ) $ 16,691 Amortized Cost Gross Gross Fair December 31, 2017 Obligations of state and political subdivisions $ 11,861 $ 9 $ (15 ) $ 11,855 Residential mortgage-backed securities 6,136 4 (48 ) 6,092 Total $ 17,997 $ 13 $ (63 ) $ 17,947 Securities are classified in the consolidated balance sheets according to management’s intent. The Company had no securities classified as trading as of September 30, 2018 or December 31, 2017 . 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 September 30, 2018 Obligations of U.S. government agencies and corporations 18 $ 3,857 $ (80 ) $ 3,873 $ (152 ) $ 7,730 $ (232 ) Obligations of state and political subdivisions 66 20,855 (529 ) 12,986 (573 ) 33,841 (1,102 ) Corporate bonds 29 7,561 (63 ) 5,811 (437 ) 13,372 (500 ) Residential mortgage-backed securities 209 49,705 (1,102 ) 65,629 (2,711 ) 115,334 (3,813 ) Commercial mortgage-backed securities 112 23,255 (540 ) 32,317 (1,551 ) 55,572 (2,091 ) Total 434 $ 105,233 $ (2,314 ) $ 120,616 $ (5,424 ) $ 225,849 $ (7,738 ) Less than 12 Months 12 Months or More Total Count Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized December 31, 2017 Obligations of U.S. government agencies and corporations 14 $ 5,815 $ (50 ) $ 1,505 $ (31 ) $ 7,320 $ (81 ) Obligations of state and political subdivisions 57 12,315 (77 ) 9,930 (345 ) 22,245 (422 ) Corporate bonds 20 1,116 (6 ) 6,273 (324 ) 7,389 (330 ) Residential mortgage-backed securities 159 71,893 (729 ) 28,410 (541 ) 100,303 (1,270 ) Commercial mortgage-backed securities 80 30,445 (406 ) 11,216 (280 ) 41,661 (686 ) Equity securities 1 — — 478 (29 ) 478 (29 ) Total 331 $ 121,584 $ (1,268 ) $ 57,812 $ (1,550 ) $ 179,396 $ (2,818 ) 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 September 30, 2018 Obligations of state and political subdivisions 8 $ 11,422 $ (109 ) $ — $ — $ 11,422 $ (109 ) Residential mortgage-backed securities 9 3,018 (106 ) 2,251 (124 ) 5,269 (230 ) Total 17 $ 14,440 $ (215 ) $ 2,251 $ (124 ) $ 16,691 $ (339 ) Less than 12 Months 12 Months or More Total Count Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized December 31, 2017 Obligations of state and political subdivisions 1 $ 6,007 $ (15 ) $ — $ — $ 6,007 $ (15 ) Residential mortgage-backed securities 6 1,601 (3 ) 2,522 (45 ) 4,123 (48 ) Total 7 $ 7,608 $ (18 ) $ 2,522 $ (45 ) $ 10,130 $ (63 ) 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 September 30, 2018 or December 31, 2017 . 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 September 30, 2018 Due within one year $ 4,105 $ 4,095 $ 720 $ 720 Due after one year through five years 10,492 10,326 3,245 3,244 Due after five years through ten years 33,767 32,690 1,875 1,874 Due after ten years 190,079 183,636 11,190 10,853 Total debt securities $ 238,443 $ 230,747 $ 17,030 $ 16,691 Securities Available For Sale Securities Held To Maturity Amortized Fair Amortized Fair December 31, 2017 Due within one year $ 1,319 $ 1,319 $ 720 $ 721 Due after one year through five years 15,379 15,331 3,245 3,249 Due after five years through ten years 28,242 27,833 1,875 1,878 Due after ten years 174,290 172,239 12,157 12,099 Total debt securities $ 219,230 $ 216,722 $ 17,997 $ 17,947 At September 30, 2018 , securities with a carrying value of $90.4 million were pledged to secure certain deposits, borrowings, and other liabilities, compared to $90.8 million in pledged securities at December 31, 2017 .

LOANS AND ALLOWANCE FOR LOAN LO

LOANS AND ALLOWANCE FOR LOAN LOSSES	9 Months Ended
	Sep. 30, 2018
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). September 30, 2018 December 31, 2017 Construction and development $ 160,921 $ 157,667 1-4 Family 286,976 276,922 Multifamily 50,770 51,283 Farmland 20,902 23,838 Commercial real estate 592,996 537,364 Total mortgage loans on real estate 1,112,565 1,047,074 Commercial and industrial 193,563 135,392 Consumer 52,284 76,313 Total loans $ 1,358,412 $ 1,258,779 Unamortized premiums and discounts on loans, included in the total loans balances above, were $1.6 million and $2.6 million at September 30, 2018 and December 31, 2017 , 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). September 30, 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 $ 160,161 $ 39 $ — $ — $ 705 $ 744 $ 16 $ 160,921 1-4 Family 283,910 839 264 — 1,438 2,541 525 286,976 Multifamily 50,770 — — — — — — 50,770 Farmland 18,638 — — — — — 2,264 20,902 Commercial real estate 589,990 131 — 67 766 964 2,042 592,996 Total mortgage loans on real estate 1,103,469 1,009 264 67 2,909 4,249 4,847 1,112,565 Commercial and industrial 192,093 194 6 — 66 266 1,204 193,563 Consumer 50,815 379 63 — 982 1,424 45 52,284 Total loans $ 1,346,377 $ 1,582 $ 333 $ 67 $ 3,957 $ 5,939 $ 6,096 $ 1,358,412 December 31, 2017 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 $ 157,123 $ 225 $ — $ — $ 34 $ 259 $ 285 $ 157,667 1-4 Family 273,321 1,396 185 56 478 2,115 1,486 276,922 Multifamily 50,271 — — — — — 1,012 51,283 Farmland 19,619 — — 58 — 58 4,161 23,838 Commercial real estate 535,014 107 89 — 67 263 2,087 537,364 Total mortgage loans on real estate 1,035,348 1,728 274 114 579 2,695 9,031 1,047,074 Commercial and industrial 133,009 977 67 — 10 1,054 1,329 135,392 Consumer 74,409 610 152 20 1,118 1,900 4 76,313 Total loans $ 1,242,766 $ 3,315 $ 493 $ 134 $ 1,707 $ 5,649 $ 10,364 $ 1,258,779 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). September 30, 2018 Pass Special Mention Substandard Doubtful Total Construction and development $ 160,273 $ — $ 648 $ — $ 160,921 1-4 Family 285,196 69 1,681 30 286,976 Multifamily 50,770 — — — 50,770 Farmland 18,638 — 2,264 — 20,902 Commercial real estate 591,562 — 1,434 — 592,996 Total mortgage loans on real estate 1,106,439 69 6,027 30 1,112,565 Commercial and industrial 190,578 — 2,985 — 193,563 Consumer 51,079 222 983 — 52,284 Total loans $ 1,348,096 $ 291 $ 9,995 $ 30 $ 1,358,412 December 31, 2017 Pass Special Mention Substandard Doubtful Total Construction and development $ 157,385 $ — $ 282 $ — $ 157,667 1-4 Family 275,492 74 1,356 — 276,922 Multifamily 51,283 — — — 51,283 Farmland 19,611 2,773 1,454 — 23,838 Commercial real estate 536,741 — 623 — 537,364 Total mortgage loans on real estate 1,040,512 2,847 3,715 — 1,047,074 Commercial and industrial 134,522 — 870 — 135,392 Consumer 74,934 258 1,121 — 76,313 Total loans $ 1,249,968 $ 3,105 $ 5,706 $ — $ 1,258,779 The Company had no loans that were classified as loss at September 30, 2018 or December 31, 2017 . 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 $144.7 million and $204.2 million as of September 30, 2018 and December 31, 2017 , respectively. The unpaid principal balance of these loans was approximately $186.3 million and $237.3 million as of September 30, 2018 and December 31, 2017 , 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 $29.0 million and $31.2 million as of September 30, 2018 and December 31, 2017 , respectively. During the three months ended September 30, 2018 , a related party loan in the amount of $0.7 million was classified as Substandard and placed on nonaccrual. The table below shows the aggregate amount of loans to such related parties as of the dates presented (dollars in thousands). September 30, 2018 December 31, 2017 Balance, beginning of period $ 31,153 $ 19,957 New loans 9,824 24,428 Repayments and changes in relationship (12,013 ) (13,232 ) Balance, end of period $ 28,964 $ 31,153 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 table below shows the changes in the accretable yield on acquired impaired loans for the periods presented (dollars in thousands). For the three months ended September 30, For the nine months ended September 30, 2018 2017 2018 2017 Balance, beginning of period $ — $ — $ — $ 275 Loan disposals — (53 ) — (303 ) Accretion to interest income — 53 — 28 Balance at September 30, $ — $ — $ — $ — The table below shows a summary of the activity in the allowance for loan losses for the three and nine months ended September 30, 2018 and 2017 (dollars in thousands). Three months ended September 30, Nine months ended September 30, 2018 2017 2018 2017 Balance, beginning of period $ 8,451 $ 7,320 $ 7,891 $ 7,051 Provision for loan losses 785 420 1,977 1,145 Loans charged off (264 ) (155 ) (1,001 ) (635 ) Recoveries 49 20 154 44 Balance, end of period $ 9,021 $ 7,605 $ 9,021 $ 7,605 The following tables outline the activity in the allowance for loan losses by collateral type for the three and nine months ended September 30, 2018 and 2017 , and show both the allowances and portfolio balances for loans individually and collectively evaluated for impairment as of September 30, 2018 and 2017 (dollars in thousands). Three months ended September 30, 2018 Construction & Development Farmland 1-4 Family Multifamily Commercial Real Estate Commercial & Consumer Total Allowance for loan losses: Beginning balance $ 1,018 $ 66 $ 1,339 $ 319 $ 3,817 $ 1,048 $ 844 $ 8,451 Provision 7 8 101 14 113 454 88 785 Charge-offs (8 ) — (44 ) — — (30 ) (182 ) (264 ) Recoveries 2 — 14 — — 13 20 49 Ending balance $ 1,019 $ 74 $ 1,410 $ 333 $ 3,930 $ 1,485 $ 770 $ 9,021 Three months ended September 30, 2017 Construction & Development Farmland 1-4 Family Multifamily Commercial Real Estate Commercial & Consumer Total Allowance for loan losses: Beginning balance $ 806 $ 54 $ 1,276 $ 361 $ 3,036 $ 683 $ 1,104 $ 7,320 Provision 28 6 (19 ) (21 ) 227 135 64 420 Charge-offs — — — — — (77 ) (78 ) (155 ) Recoveries 14 — 2 — — — 4 20 Ending balance $ 848 $ 60 $ 1,259 $ 340 $ 3,263 $ 741 $ 1,094 $ 7,605 Nine months ended September 30, 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 88 14 182 1 331 1,219 142 1,977 Charge-offs (24 ) — (79 ) — — (481 ) (417 ) (1,001 ) Recoveries 10 — 20 — — 54 70 154 Ending balance $ 1,019 $ 74 $ 1,410 $ 333 $ 3,930 $ 1,485 $ 770 $ 9,021 Ending allowance balance for loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ 246 $ 246 Ending allowance balance for loans acquired with deteriorated credit quality — — — — — — — — Ending allowance balance for loans collectively evaluated for impairment $ 1,019 $ 74 $ 1,410 $ 333 $ 3,930 $ 1,485 $ 524 $ 8,775 Loans receivable: Balance of loans individually evaluated for impairment $ 222 $ — $ 1,911 $ — $ 711 $ 78 $ 910 $ 3,832 Balance of loans acquired with deteriorated credit quality 16 2,264 525 — 2,042 1,204 45 6,096 Balance of loans collectively evaluated for impairment 160,683 18,638 284,540 50,770 590,243 192,281 51,329 1,348,484 Total period-end balance $ 160,921 $ 20,902 $ 286,976 $ 50,770 $ 592,996 $ 193,563 $ 52,284 $ 1,358,412 Nine months ended September 30, 2017 Construction & Development Farmland 1-4 Family Multifamily Commercial Real Estate Commercial & Industrial Consumer Total Allowance for loan losses: Beginning balance $ 579 $ 60 $ 1,377 $ 355 $ 2,499 $ 759 $ 1,422 $ 7,051 Provision 241 — (122 ) (15 ) 764 252 25 1,145 Charge-offs — — — — — (270 ) (365 ) (635 ) Recoveries 28 — 4 — — — 12 44 Ending balance $ 848 $ 60 $ 1,259 $ 340 $ 3,263 $ 741 $ 1,094 $ 7,605 Ending allowance balance for loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ 336 $ 336 Ending allowance balance for loans collectively evaluated for impairment 848 60 1,259 340 3,263 741 758 7,269 Ending allowance balance for loans acquired with deteriorated credit quality $ — $ — $ — $ — $ — $ — $ — $ — Loans receivable: Balance of loans individually evaluated for impairment $ 186 $ — $ 1,452 $ — $ 651 $ 6 $ 1,182 $ 3,477 Balance of loans collectively evaluated for impairment 122,315 14,130 250,551 50,770 461,771 125,224 82,283 1,107,044 Total period-end balance $ 122,501 $ 14,130 $ 252,003 $ 50,770 $ 462,422 $ 125,230 $ 83,465 $ 1,110,521 Balance of loans acquired with deteriorated credit quality $ 55 $ — $ 2,814 $ 1,806 $ 3,033 $ 1,884 $ 5 $ 9,597 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). September 30, 2018 Recorded Investment Unpaid Principal Balance Related Allowance With no related allowance recorded: Construction and development $ 222 $ 240 $ — 1-4 Family 1,911 1,921 — Commercial real estate 711 727 — Total mortgage loans on real estate 2,844 2,888 — Commercial and industrial 78 78 — Consumer 202 228 — Total 3,124 3,194 — With related allowance recorded: Consumer 708 745 246 Total 708 745 246 Total loans: Construction and development 222 240 — 1-4 Family 1,911 1,921 — Commercial real estate 711 727 — Total mortgage loans on real estate 2,844 2,888 — Commercial and industrial 78 78 — Consumer 910 973 246 Total $ 3,832 $ 3,939 $ 246 December 31, 2017 Recorded Investment Unpaid Principal Balance Related Allowance With no related allowance recorded: Construction and development $ 182 $ 202 $ — 1-4 Family 1,136 1,169 — Commercial real estate 640 654 — Total mortgage loans on real estate 1,958 2,025 — Consumer 168 217 — Total 2,126 2,242 — With related allowance recorded: Consumer 918 956 304 Total 918 956 304 Total loans: Construction and development 182 202 — 1-4 Family 1,136 1,169 — Commercial real estate 640 654 — Total mortgage loans on real estate 1,958 2,025 — Consumer 1,086 1,173 304 Total $ 3,044 $ 3,198 $ 304 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 September 30, 2018 2017 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized With no related allowance recorded: Construction and development $ 266 $ 3 $ 187 $ 2 1-4 Family 1,739 9 1,231 18 Commercial real estate 711 2 632 8 Total mortgage loans on real estate 2,716 14 2,050 28 Commercial and industrial 76 — 22 — Consumer 235 — 196 — Total 3,027 14 2,268 28 With related allowance recorded: Consumer 693 — 933 — Total 693 — 933 — Total loans: Construction and development 266 3 187 2 1-4 Family 1,739 9 1,231 18 Commercial real estate 711 2 632 8 Total mortgage loans on real estate 2,716 14 2,050 28 Commercial and industrial 76 — 22 — Consumer 928 — 1,129 — Total $ 3,720 $ 14 $ 3,201 $ 28 Nine months ended September 30, 2018 2017 Average Interest Average Interest With no related allowance recorded: Construction and development $ 203 $ 7 $ 389 $ 8 1-4 Family 1,386 30 1,517 61 Commercial real estate 923 18 613 35 Total mortgage loans on real estate 2,512 55 2,519 104 Commercial and industrial 345 — 163 — Consumer 404 — 322 1 Total 3,261 55 3,004 105 With related allowance recorded: Consumer 626 — 813 1 Total 626 — 813 1 Total loans: Construction and development 203 7 389 8 1-4 Family 1,386 30 1,517 61 Commercial real estate 923 18 613 35 Total mortgage loans on real estate 2,512 55 2,519 104 Commercial and industrial 345 — 163 — Consumer 1,030 — 1,135 2 Total $ 3,887 $ 55 $ 3,817 $ 106 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 $2.0 million at September 30, 2018 , compared to 18 credits totaling $1.6 million at December 31, 2017 . At September 30, 2018 , 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 September 30, 2018 three of the TDRs were in default of their modified terms and are included in nonaccrual loans. As of December 31, 2017 , all restructured loans were performing under their modified terms. 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 September 30, 2018 and December 31, 2017 , there were no available balances on loans classified as TDRs that the Company was committed to lend. The table below presents the TDR pre- and post-modification outstanding recorded investments by loan categories for loans modified during the nine month periods ended September 30, 2018 and 2017 (dollars in thousands). September 30, 2018 September 30, 2017 Troubled Debt Restructurings Number of Contracts Pre- Modification Post- Modification Number of Contracts Pre- Modification Post- Modification Construction and development 2 $ 358 $ 358 — $ — $ — 1-4 Family 7 400 400 — — — Commercial and industrial 2 12 12 — — — Consumer — — — 1 6 6 Total $ 770 $ 770 $ 6 $ 6 There were two loans modified under TDRs during the previous twelve month period that subsequently defaulted during the nine months ended September 30, 2018 .

STOCKHOLDERS' EQUITY

STOCKHOLDERS' EQUITY	9 Months Ended
	Sep. 30, 2018
Equity [Abstract]
STOCKHOLDERS' EQUITY	STOCKHOLDERS’ EQUITY Accumulated Other Comprehensive Income (Loss) Activity within the balances in accumulated other comprehensive income (loss), net is shown in the tables below (dollars in thousands). Three months ended September 30, 2018 2017 Beginning of Period Net Change End of Period Beginning of Period Net Change End of Period Unrealized (loss) gain, available for sale, net $ (2,594 ) $ (1,542 ) $ (4,136 ) $ 824 $ 95 $ 919 Reclassification of realized gain, net (1,931 ) (12 ) (1,943 ) (1,822 ) (18 ) (1,840 ) Unrealized loss, transfer from available for sale to held to maturity, net 6 — 6 7 — 7 Change in fair value of interest rate swap designated as a cash flow hedge, net 744 (11 ) 733 82 37 119 Accumulated other comprehensive (loss) income $ (3,775 ) $ (1,565 ) $ (5,340 ) $ (909 ) $ 114 $ (795 ) Nine months ended September 30, 2018 2017 Beginning of Period Net Change End of Period Beginning of Period Net Change End of Period Unrealized (loss) gain, available for sale, net $ (71 ) $ (4,065 ) $ (4,136 ) $ (401 ) $ 1,320 $ 919 Reclassification of realized gain, net (1,914 ) (29 ) (1,943 ) (1,683 ) (157 ) (1,840 ) Unrealized loss, transfer from available for sale to held to maturity, net 7 (1 ) 6 8 (1 ) 7 Change in fair value of interest rate swap designated as a cash flow hedge, net 407 326 733 5 114 119 Accumulated other comprehensive (loss) income $ (1,571 ) $ (3,769 ) $ (5,340 ) $ (2,071 ) $ 1,276 $ (795 )

STOCK-BASED COMPENSATION

STOCK-BASED COMPENSATION	9 Months Ended
	Sep. 30, 2018
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, 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. The Plan is administered by the Compensation Committee of the Company’s board of directors, which determines, within the provisions of the Plan, those eligible employees to whom, and the times at which, grants and awards will be made. The Compensation Committee, in its discretion, may delegate its authority and duties under the Plan to specified officers; however, only the Compensation Committee may approve the terms of grants and awards to the Company’s executive officers and directors. 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. Stock option expense in the accompanying consolidated statements of income for the three and nine months ended September 30, 2018 was $69,000 and $0.2 million , respectively, and $57,000 and $0.2 million for the three and nine months ended September 30, 2017 , respectively. The assumptions presented below were used for the options granted during the nine months ended September 30, 2018 . Expected dividends 0.52 % Expected volatility 24.99 % Risk-free interest rate 2.68 % Expected term (in years) 6.5 Weighted-average grant date fair value $ 7.16 At September 30, 2018 , there was $0.7 million of unrecognized compensation cost related to stock options that is expected to be recognized over a weighted-average period of 2.22 years . The table below summarizes stock option activity for the periods presented. Nine months ended September 30, 2018 2017 Number of Options Weighted Average Exercise Price Number of Options Weighted Average Exercise Price Outstanding at beginning of period 322,917 $ 15.09 319,364 $ 14.37 Granted 31,788 24.30 36,177 20.25 Forfeited (1,333 ) 14.00 (5,334 ) 14.00 Exercised (12,415 ) 14.07 (17,791 ) 13.53 Outstanding at end of period 340,957 $ 15.99 332,416 $ 15.06 Exercisable at end of period 99,917 $ 15.17 124,426 $ 14.38 At September 30, 2018 , the shares underlying outstanding stock options and exercisable stock options had aggregate intrinsic values of $3.7 million and $1.2 million , respectively. Time Vested Restricted Stock Awards During the nine months ended September 30, 2018 and 2017 , the Company issued shares of time vested restricted stock 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 shares awarded and is amortized over the vesting period. Stock compensation expense related to time vested restricted stock awards in the accompanying consolidated statements of income was $0.2 million and $ 0.6 million for the three and nine months ended September 30, 2018 , respectively, and $0.1 million and $0.4 million and for the three and nine months ended September 30, 2017 , respectively. The table below summarizes the time vested restricted stock award activity for the periods presented. Nine months ended September 30, 2018 2017 Shares Weighted Average Grant Date Fair Value Shares Weighted Average Grant Date Fair Value Balance at beginning of period 112,688 $ 17.28 93,366 $ 14.75 Granted 60,260 24.35 54,724 20.18 Forfeited (2,767 ) 20.90 (8,259 ) 16.05 Earned and issued (33,207 ) 16.80 (25,949 ) 14.80 Balance at end of period 136,974 $ 20.44 113,882 $ 17.25 At September 30, 2018 , there was $2.3 million of unrecognized compensation cost related to time vested restricted stock awards that is expected to be recognized over a weighted average period of 3.41 years .

DERIVATIVE FINANCIAL INSTRUMENT

DERIVATIVE FINANCIAL INSTRUMENTS	9 Months Ended
	Sep. 30, 2018
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. An interest rate swap is an agreement whereby one party agrees to pay a fixed rate of interest on a notional principal amount in exchange for receiving a floating rate of interest on the same notional amount, for a predetermined period of time, from a second party. The amounts relating to the notional principal amount are not actually exchanged. 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 1.9 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 and nine months ended September 30, 2018 , a loss of $11,000 and a gain of $0.3 million , respectively, have 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 gains of $37,000 and $0.1 million , respectively, recognized for the three and nine months ended September 30, 2017 . The swap contracts had a fair value of $0.9 million as of September 30, 2018 and have been recorded in “Other assets” in the accompanying consolidated balance sheet. The accumulated gain of $0.7 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	9 Months Ended
	Sep. 30, 2018
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. 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. Loans – Effective January 1, 2018, with the adoption of ASU 2016-01, 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. As of December 31, 2017, loans were valued as follows: For variable-rate loans that re-price frequently and with no significant change in credit risk, fair values are based on carrying values. Fair values for certain mortgage loans (for example, 1-4 family residential), credit card loans, and other consumer loans are based on quoted market prices of similar instruments sold in conjunction with securitization transactions, adjusted for differences in loan characteristics. Fair values for other loans (for example, commercial real estate and investment property mortgage loans, commercial and industrial loans) are estimated using discounted cash flow analyses, using market interest rates for comparable loans. Fair values for nonperforming loans, which are loans for which the accrual of interest has stopped or loans that are contractually 90 days past due on which interest continues to accrue, are estimated using discounted cash flow analyses or underlying collateral values, where applicable. The Company classifies loans in level 3 of the fair value hierarchy. 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) September 30, 2018 Assets: Obligations of U.S. government agencies and corporations $ 7,868 $ — $ 7,868 $ — Obligations of state and political subdivisions 33,961 — 15,137 18,824 Corporate bonds 15,544 — 14,222 1,322 Residential mortgage-backed securities 116,976 — 116,976 — Commercial mortgage-backed securities 56,398 — 56,398 — Equity securities 633 633 — — Derivative financial instruments 929 — 929 — Total assets $ 232,309 $ 633 $ 211,530 $ 20,146 December 31, 2017 Assets: Obligations of U.S. government agencies and corporations $ 8,168 $ — $ 8,168 $ — Obligations of state and political subdivisions 35,237 — 15,694 19,543 Corporate bonds 16,210 — 14,885 1,325 Residential mortgage-backed securities 109,478 — 109,478 — Commercial mortgage-backed securities 47,629 — 47,629 — Equity securities 842 842 — — Derivative financial instruments 516 — 516 — Total assets $ 218,080 $ 842 $ 196,370 $ 20,868 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 nine months ended September 30, 2018 and September 30, 2017 (dollars in thousands). Obligations of State and Political Subdivisions Corporate Bonds Total Balance at December 31, 2017 $ 19,543 $ 1,325 $ 20,868 Realized gains (losses) included in net income — — — Unrealized gains (losses) included in other comprehensive income (719 ) (3 ) (722 ) Purchases — — — Sales — — — Transfers into level 3 — — — Transfers out of level 3 — — — Balance at September 30, 2018 $ 18,824 $ 1,322 $ 20,146 Obligations of State and Corporate Bonds Total Balance at December 31, 2016 $ 17,656 $ 624 $ 18,280 Realized gains (losses) included in net income — — — Unrealized gains (losses) included in other comprehensive income 1,942 4 1,946 Purchases — 700 700 Sales — — — Transfers into level 3 — — — Transfers out of level 3 — — — Balance at September 30, 2017 $ 19,598 $ 1,328 $ 20,926 There were no liabilities measured at fair value on a recurring basis using level 3 inputs at September 30, 2018 and December 31, 2017 . For the three and nine months ended September 30, 2018 and 2017 , 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 September 30, 2018 or December 31, 2017 (dollars in thousands). Estimated Valuation Technique Unobservable Inputs Range of Discounts Weighted Average Discount September 30, 2018 Impaired loans $ 373 Discounted cash flows, Underlying collateral value Collateral discounts and estimated costs to sell 0% - 100% 15% December 31, 2017 Impaired loans $ 380 Discounted cash flows, Underlying collateral value Collateral discounts and estimated costs to sell 0% - 100% 32% Other real estate owned 3,612 Underlying collateral value, Third party appraisals Collateral discounts and discount rates 5% 5% The estimated fair values of the Company’s financial instruments are summarized in the table below as of the dates indicated (dollars in thousands). September 30, 2018 Carrying Amount Estimated Fair Value Level 1 Level 2 Level 3 Financial assets: Cash and due from banks $ 24,503 $ 24,503 $ 24,503 $ — $ — Federal funds sold 285 285 285 — — Investment securities 247,777 247,438 — 215,871 31,567 Equity securities 12,671 12,671 633 12,038 — Loans, net of allowance 1,349,391 1,342,314 — — 1,342,314 Derivative financial instruments 929 929 — 929 — Financial liabilities: Deposits, noninterest-bearing $ 214,190 $ 214,190 $ — $ 214,190 $ — Deposits, interest-bearing 1,081,431 1,031,041 — — 1,031,041 FHLB short-term advances and repurchase agreements 222,931 222,931 — 222,931 — FHLB long-term advances 3,083 2,514 — — 2,514 Junior subordinated debt 5,832 6,924 — — 6,924 Subordinated debt 18,600 18,355 — 18,355 — December 31, 2017 Carrying Amount Estimated Fair Value Level 1 Level 2 Level 3 Financial assets: Cash and due from banks $ 30,421 $ 30,421 $ 30,421 $ — $ — Investment securities 235,561 235,511 842 201,946 32,723 Equity securities 9,798 9,799 — 9,799 — Loans, net of allowance 1,250,888 1,249,844 — — 1,249,844 Derivative financial instruments 516 516 — 516 — Financial liabilities: Deposits, noninterest-bearing $ 216,599 $ 216,599 $ — $ 216,599 $ — Deposits, interest-bearing 1,008,638 977,127 — — 977,127 FHLB short-term advances and repurchase agreements 148,535 148,535 — 148,535 — FHLB long-term advances 40,058 39,927 — — 39,927 Junior subordinated debt 5,792 5,576 — — 5,576 Subordinated debt 18,600 18,857 — 18,857 —

INCOME TAXES

INCOME TAXES	9 Months Ended
	Sep. 30, 2018
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES On December 22, 2017, the Tax Act was signed into law. The Tax Act makes broad and complex changes to the U.S. tax code that affected the Company’s income tax rate in 2017, including requiring 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 Tax Act reduced the U.S. federal corporate income tax rate from 35% to 21% and establishes new tax laws that affect 2018 and subsequent years. ASC 740 requires a company to record the effects of a tax law change in the period of enactment; however, shortly after the enactment of the Tax Act, the SEC staff issued SAB 118, which allows a company to record a provisional amount when it does not have the necessary information available, prepared, or analyzed in reasonable detail to complete its accounting for the change in the tax law. The measurement period ends when the company has obtained, prepared and analyzed the information necessary to finalize its accounting, but cannot extend beyond one year. 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 September 30, Nine months ended September 30, 2018 2017 2018 2017 Income tax expense $ 516 $ 1,032 $ 2,823 $ 2,756 Effective tax rate 11.3 % 32.6 % 21.6 % 31.8 % The Company’s current income tax expense for the three months ended September 30, 2018 includes a discrete tax benefit of $0.3 million related to return-to-provision adjustments, resulting in a decrease in the effective tax rate for the period. In addition, tax expense for the nine months ended September 30, 2018 includes a $0.6 million charge, recorded in the first quarter of 2018, 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% for 2018 .

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	9 Months Ended
	Sep. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES 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 $101,000 and $32,000 at September 30, 2018 and December 31, 2017 , 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). September 30, 2018 December 31, 2017 Commitments to extend credit Loan commitments $ 221,237 $ 174,278 Standby letters of credit 11,177 3,832 Additionally, at September 30, 2018 , the Company had unfunded commitments of $0.1 million for its investment in Small Business Investment Company qualified funds.

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	9 Months Ended
	Sep. 30, 2018
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS On October 10, 2018, the Company and its wholly-owned subsidiary, the Bank, entered into an Agreement and Plan of Reorganization (the “Merger Agreement”) with Mainland Bank, Texas City, Texas (“Mainland Bank”). The Merger Agreement provides for the merger of Mainland Bank with and into the Bank, with the Bank as the entity surviving the merger. Following the merger, the Bank will continue as a wholly-owned subsidiary of the Company. Under the terms of the Merger Agreement, all of the issued and outstanding shares of Mainland Bank common stock will be converted into and represent the right to receive aggregate merger consideration consisting of an aggregate of 763,849 shares of the Company’s common stock, which is subject to adjustment as described below. As a result of the merger, holders of shares of Mainland Bank common stock are expected to receive 3.0389 shares of the Company’s common stock for each share of Mainland Bank common stock held immediately prior to the merger. Mainland Bank shareholders will receive cash in lieu of fractional shares. Consummation of the transactions contemplated by the Merger Agreement is subject to various customary conditions, including, without limitation (i) the approval of the shareholders of Mainland Bank, (ii) the receipt of certain regulatory approvals, (iii) the accuracy of the representations and warranties of the parties and compliance by the parties with their respective covenants and obligations under the Merger Agreement (subject to customary materiality qualifiers), and (iv) the absence of a material adverse effect with respect to Mainland Bank, the Company and the Bank. The Merger Agreement has been approved by the boards of directors of each of the Company, the Bank and Mainland Bank, and the Merger Agreement has been executed and delivered by each of the parties. Subject to the satisfaction of all closing conditions, including the receipt of all required regulatory and shareholder approvals, the merger is expected to be completed in the first quarter of 2019 .

SUMMARY OF SIGNIFICANT ACCOUN_2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	9 Months Ended
	Sep. 30, 2018
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 and nine month periods ended September 30, 2018 are 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, 2017 , 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 16, 2018.
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 market is South Louisiana. At September 30, 2018 , the Company operated 20 full service banking offices located throughout its market and had 253 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 other liabilities in the 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 2017 financial statements to be consistent with the 2018 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 South 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 provides a measurement period of up to one year from the enactment date to complete the accounting. Any adjustments during this measurement period will be included in net earnings from continuing operations as an adjustment to income tax expense in the reporting period when such adjustments are determined. Based on the information available and current 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. The amount recorded in the fourth quarter of 2017 related to the remeasurement of the Company’s deferred tax balance and resulted in additional income tax expense of $0.3 million . An additional $0.6 million was expensed in the first quarter of 2018 due to the remeasurement of the Company’s deferred tax balance.
Accounting Standards Adopted in 2018 and Recent Accounting Pronouncements	Accounting Standards Adopted in 2018 FASB ASC Topic 230 “Statement of Cash Flows – Classification of Certain Cash Receipts and Cash Payments” Update No. 2016-15 (“ASU 2016-15”). The FASB issued ASU 2016-15 in August 2016. The amendments in the ASU address eight specific cash flow issues with the objective of reducing the existing diversity in practice, as the issues are either unclear or do not have specific guidance under current GAAP. ASU 2016-15 became effective for the Company on January 1, 2018 and did not have a material impact on the Company’s consolidated financial statements. FASB ASC Topic 825 “Financial Instruments – Overall” Update No. 2016-01 (“ASU 2016-01”). ASU 2016-01 makes targeted amendments to the guidance for recognition, measurement, presentation and disclosure of financial instruments. ASU 2016-01 requires equity investments, other than equity method investments, to be measured at fair value with changes in fair value recognized in net income. The ASU requires a cumulative-effect adjustment to retained earnings as of the beginning of the reporting period of adoption to reclassify the cumulative change in fair value of equity securities previously recognized in accumulated other comprehensive income (AOCI). ASU 2016-01 became effective for the Company on January 1, 2018. The adoption of the guidance resulted in an insignificant cumulative-effect adjustment that decreased retained earnings, with offsetting related adjustments to deferred taxes and AOCI. The adoption of this ASU also resulted in equity securities previously classified as AFS securities to be classified as equity securities at fair value in the Company’s September 30, 2018 Consolidated Balance Sheet. ASU 2016-01 also emphasizes the existing requirement to use exit prices to measure fair value for disclosure purposes and clarifies that entities should not make use of a practicability exception in determining the fair value of loans. Accordingly, we refined the calculation used to determine the disclosed fair value of our loans held for investment portfolio as part of adopting this standard. The refined calculation did not have a significant impact on our fair value disclosures. See Note 9. Fair Values of Financial Instruments. As a result of the adoption of ASU 2016-01, $1.4 million of equity securities was reclassified from AFS securities to equity securities in the first quarter of 2018. At September 30, 2018, equity securities include $0.6 million of exchange-traded equity securities that are measured at fair value with changes in fair value recognized in net income. The remaining balance of equity securities at September 30, 2018 consists of stock in correspondent banks and is measured at cost, adjusted for any observable market transactions less any impairment. ASU 2016-01 also requires that other investments previously accounted for using the cost method be measured at fair value with changes in fair value recognized in net income. These investments, which had a $1.4 million balance at September 30, 2018, are included in other assets in the consolidated balance sheet and represent investments in small business investment companies without readily determinable fair values. These investments are measured at fair value using the net asset value of the investment and any changes in fair value are recognized in net income. FASB ASC Topic 606 “Revenue from Contracts with Customers” Update No. 2014-09 (“ASU 2014-09”). ASU 2014-09 was effective for the Company on January 1, 2018. ASU 2014-09 amends existing guidance related to revenue from contracts with customers by (i) creating a single framework for recognizing revenue from contracts with customers that fall within its scope and (ii) revising when it is appropriate to recognize a gain (loss) from the transfer of nonfinancial assets, such as other real estate owned (“OREO”). The Company adopted ASU 2014-09 using the modified retrospective method applied to all contracts not completed as of January 1, 2018. Results for reporting periods beginning after January 1, 2018 are presented under the new guidance while prior period amounts continue to be reported in accordance with legacy GAAP. The adoption of ASU 2014-09 did not result in a significant change to the accounting for any in-scope revenue streams. As such, no cumulative effect adjustment was recorded. The majority of the Company’s revenues comes from interest income from loans and securities, which falls outside the scope of ASU 2014-09. The Company’s services that fall within the scope of ASU 2014-09 are primarily included within noninterest income in the consolidated income statements and are recognized as revenue as the Company satisfies its obligation to the customer. Services within the scope of the new guidance include service charges on deposit accounts, interchange fees and other fees, and the sale of OREO. The adoption of this ASU was not significant to the Company and had no material effect on how the Company recognizes revenue nor did it result in any presentation changes to the 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 718 “Compensation - Stock Compensation: Improvements to Nonemployees Share-Based Payment Accounting” Update No. 2018-07. In June 2018, the FASB issued ASU 2018-07, which expands the scope of Topic 718 (which currently only includes share-based payments to employees) to include share-based payments issued to nonemployees for goods or services. As this ASU becomes effective, the accounting for share-based payments for nonemployees and employees will be substantially the same. The ASU supersedes Subtopic 505-50, “Equity – Equity-Based Payments to Non-Employees”. ASU 2018-07 is effective for the Company on January 1, 2019. The adoption of ASU 2018-07 is not expected to have a material impact on the Company’s consolidated financial statements. FASB ASC Topic 815 “Derivatives and Hedging” Update No. 2017-12. The FASB issued ASU No. 2017-12 in August 2017. The ASU 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 is effective for the Company on January 1, 2019, and, given the current level of derivatives designated as hedges, is not expected to have a material impact on our consolidated operating results or financial condition. FASB ASC Subtopic 310-20 “Receivables – Nonrefundable Fees and Other Costs, Premium Amortization on Purchased Callable Debt Securities” Update No. 2017-08. The FASB issued ASU No. 2017-08 in March 2017. 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. Update 2017-08 will be effective for the Company beginning January 1, 2019. Early adoption is permitted, including adoption in an interim period. If an entity early adopts in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. The amendments should be applied on a modified retrospective basis, with a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. The Company is assessing the impact of ASU 2017-08 on its accounting and disclosures. 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 amendments introduce an impairment model that is based on expected credit losses, rather than incurred losses, to estimate credit losses on certain types of financial instruments (e.g., loans and held-to-maturity securities), including certain off-balance sheet financial instruments (e.g., loan commitments). The expected credit losses should consider historical information, current information, and reasonable and supportable forecasts, including estimates of prepayments, over the contractual term. Financial instruments with similar risk characteristics may be grouped together when estimating expected credit losses. The ASU also amends the current AFS security impairment model for debt securities. The new model will require an estimate of expected credit losses when the fair value is below the amortized cost of the asset through the use of an allowance to record estimated credit losses (and subsequent recoveries). Non-credit related losses will continue to be recognized through other comprehensive income. In addition, the amendments provide for a simplified accounting model for purchased financial assets with a more-than-insignificant amount of credit deterioration since their origination. The initial estimate of expected credit losses would be recognized through an allowance for loan losses with an offset (i.e., increase) to the cost basis of the related financial asset at acquisition. ASU 2016-13 will be effective for the Company beginning January 1, 2020. The amendments will be applied through a modified-retrospective approach, resulting in a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective. A prospective transition approach is required for debt securities for which other-than-temporary impairment had been recognized before the effective date. Amounts previously recognized in accumulated other comprehensive income as of the date of adoption that relate to improvements in cash flows expected to be collected should continue to be accreted into income over the remaining life of the asset. Recoveries of amounts previously written off relating to improvements in cash flows after the date of adoption should be recorded in earnings when received. Management is currently evaluating the potential impact of ASU 2016-13 on the Company’s consolidated financial statements. FASB ASC Topic 842 “Leases” Update No. 2016-02. In February 2016, the FASB issued ASU 2016-02. This ASU will require all organizations that lease assets to recognize on the balance sheet the assets and liabilities for the rights and obligations created by those leases. Additional qualitative and quantitative disclosures will be required so that users can understand more about the nature of an entity’s leasing activities. The new guidance is effective for the Company beginning January 1, 2019. Early adoption is permitted. Management is currently analyzing data on leased assets. The adoption of this guidance is expected to increase both assets and liabilities, but is not expected to have a material impact on the consolidated statements of income.

BUSINESS COMBINATIONS (Tables)

BUSINESS COMBINATIONS (Tables)	9 Months Ended
	Sep. 30, 2018
Business Acquisition [Line Items]
Business Acquisition, Pro Forma Information	The following unaudited supplemental pro forma information is presented to show estimated results assuming Citizens and BOJ were acquired as of January 1, 2017. These unaudited pro forma results are not necessarily indicative of the operating results that the Company would have achieved had it completed the acquisitions as of January 1, 2017 and should not be considered representative of future operating results. The pro forma net income for the three months ended September 30, 2017 excludes the tax-affected amount of $0.7 million of acquisition expenses recorded in noninterest expense by the Company and BOJ. The pro forma net income for the nine months ended September 30, 2017 excludes the tax-affected amount of $1.5 million of acquisition expenses recorded in noninterest expense by the Company, Citizens, and BOJ. Unaudited Pro Forma for the Three months ended September 30, Nine months ended September 30, (dollars in thousands) 2017 2017 Interest income $ 15,966 $ 46,065 Noninterest income 1,436 4,106 Net income 3,001 8,206
Citizens Bancshares Inc [Member]
Business Acquisition [Line Items]
Schedule Of Recognized Identified Assets Acquired and Liabilities Assumed	The table below shows the allocation of the consideration paid for Citizens’ common equity to the acquired identifiable assets and liabilities assumed and the goodwill generated from the transaction (dollars in thousands). Purchase price: Cash paid $ 45,800 Fair value of assets acquired: Cash and cash equivalents 44,565 Investment securities 69,912 Loans 129,181 Bank premises and equipment 3,307 Core deposit intangible asset 1,462 Other assets 2,223 Total assets acquired 250,650 Fair value of liabilities acquired: Deposits 212,228 Other liabilities 1,675 Total liabilities assumed 213,903 Fair value of net assets acquired 36,747 Goodwill $ 9,053
Business Combination, Separately Recognized Transactions	The tables below present information about the loans acquired with deteriorated credit quality from Citizens as of the date of acquisition (dollars in thousands). Purchase Credit Impaired Contractually required principal $ 5,123 Non-accretable difference (700 ) Cash flows expected to be collected 4,423 Accretable yield — Fair value of acquired loans $ 4,423
BOJ Bancshares, Inc [Member]
Business Acquisition [Line Items]
Schedule Of Recognized Identified Assets Acquired and Liabilities Assumed	The table below shows the allocation of the consideration paid for BOJ’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: Cash paid $ 3,950 Stock Issued 18,749 Fair value of assets acquired: Cash and cash equivalents 26,438 Investment securities 16,194 Loans 102,393 Bank premises and equipment 3,725 Core deposit intangible asset 1,018 Other assets 2,375 Total assets acquired 152,143 Fair value of liabilities acquired: Deposits 125,788 FHLB advances 5,956 Trust preferred 2,178 Other liabilities 1,209 Total liabilities assumed 135,131 Fair value of net assets acquired 17,012 Goodwill $ 5,687
Business Combination, Separately Recognized Transactions	The table below presents information about the loans acquired with deteriorated credit quality from BOJ as of the date of acquisition (dollars in thousands). Purchase Credit Impaired Contractually required principal $ 4,557 Non-accretable difference (671 ) Cash flows expected to be collected 3,886 Accretable yield — Fair value of acquired loans $ 3,886

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	9 Months Ended
	Sep. 30, 2018
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 and nine months ended September 30, 2018 and 2017 (in thousands, except share data). Three months ended September 30, Nine months ended September 30, 2018 2017 2018 2017 Earnings per common share - basic Net income allocated to common shareholders $ 3,990 $ 2,131 $ 10,125 $ 5,918 Weighted-average basic shares outstanding 9,563,550 8,702,559 9,545,436 8,203,645 Basic earnings per common share $ 0.42 $ 0.24 $ 1.06 $ 0.72 Earnings per common share - diluted Net income allocated to common shareholders $ 3,990 $ 2,131 $ 10,126 $ 5,918 Weighted-average basic shares outstanding 9,563,550 8,702,559 9,545,436 8,203,645 Dilutive effect of securities 119,330 94,958 133,503 76,350 Total weighted average diluted shares outstanding 9,682,880 8,797,517 9,678,939 8,279,995 Diluted earnings per common share $ 0.41 $ 0.24 $ 1.05 $ 0.71
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 September 30, Nine months ended September 30, 2018 2017 2018 2017 Stock Options 31,788 36,177 24,918 28,138

INVESTMENT SECURITIES (Tables)

INVESTMENT SECURITIES (Tables)	9 Months Ended
	Sep. 30, 2018
Certain Loans Acquired in Transfer Accounted for as Debt Securities Accretable Yield Movement Schedule [Line Items]
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 September 30, 2018 Obligations of U.S. government agencies and corporations $ 8,098 $ 2 $ (232 ) $ 7,868 Obligations of state and political subdivisions 35,060 3 (1,102 ) 33,961 Corporate bonds 16,022 22 (500 ) 15,544 Residential mortgage-backed securities 120,778 11 (3,813 ) 116,976 Commercial mortgage-backed securities 58,485 4 (2,091 ) 56,398 Total $ 238,443 $ 42 $ (7,738 ) $ 230,747 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 September 30, Nine months ended September 30, 2018 2017 2018 2017 Proceeds from sale $ 7,021 $ 63,488 $ 7,021 $ 82,537 Gross gains $ 35 $ 27 $ 35 $ 275 Gross losses $ (20 ) $ — $ (20 ) $ (33 )
Schedule of Amortized Cost and Approximate Fair Value of Investment Securities Classified as Available for Sale	Amortized Cost Gross Gross Fair December 31, 2017 Obligations of U.S. government agencies and corporations $ 8,241 $ 8 $ (81 ) $ 8,168 Obligations of state and political subdivisions 35,572 87 (422 ) 35,237 Corporate bonds 16,428 112 (330 ) 16,210 Residential mortgage-backed securities 110,690 58 (1,270 ) 109,478 Commercial mortgage-backed securities 48,299 16 (686 ) 47,629 Equity securities 847 24 (29 ) 842 Total $ 220,077 $ 305 $ (2,818 ) $ 217,564
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 September 30, 2018 Obligations of state and political subdivisions $ 11,531 $ — $ (109 ) $ 11,422 Residential mortgage-backed securities 5,499 — (230 ) 5,269 Total $ 17,030 $ — $ (339 ) $ 16,691 Amortized Cost Gross Gross Fair December 31, 2017 Obligations of state and political subdivisions $ 11,861 $ 9 $ (15 ) $ 11,855 Residential mortgage-backed securities 6,136 4 (48 ) 6,092 Total $ 17,997 $ 13 $ (63 ) $ 17,947
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 September 30, 2018 Obligations of U.S. government agencies and corporations 18 $ 3,857 $ (80 ) $ 3,873 $ (152 ) $ 7,730 $ (232 ) Obligations of state and political subdivisions 66 20,855 (529 ) 12,986 (573 ) 33,841 (1,102 ) Corporate bonds 29 7,561 (63 ) 5,811 (437 ) 13,372 (500 ) Residential mortgage-backed securities 209 49,705 (1,102 ) 65,629 (2,711 ) 115,334 (3,813 ) Commercial mortgage-backed securities 112 23,255 (540 ) 32,317 (1,551 ) 55,572 (2,091 ) Total 434 $ 105,233 $ (2,314 ) $ 120,616 $ (5,424 ) $ 225,849 $ (7,738 )
Schedule of Unrealized Losses and Fair Value by Investment Category for Securities Available for Sale	Less than 12 Months 12 Months or More Total Count Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized December 31, 2017 Obligations of U.S. government agencies and corporations 14 $ 5,815 $ (50 ) $ 1,505 $ (31 ) $ 7,320 $ (81 ) Obligations of state and political subdivisions 57 12,315 (77 ) 9,930 (345 ) 22,245 (422 ) Corporate bonds 20 1,116 (6 ) 6,273 (324 ) 7,389 (330 ) Residential mortgage-backed securities 159 71,893 (729 ) 28,410 (541 ) 100,303 (1,270 ) Commercial mortgage-backed securities 80 30,445 (406 ) 11,216 (280 ) 41,661 (686 ) Equity securities 1 — — 478 (29 ) 478 (29 ) Total 331 $ 121,584 $ (1,268 ) $ 57,812 $ (1,550 ) $ 179,396 $ (2,818 )
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 September 30, 2018 Due within one year $ 4,105 $ 4,095 $ 720 $ 720 Due after one year through five years 10,492 10,326 3,245 3,244 Due after five years through ten years 33,767 32,690 1,875 1,874 Due after ten years 190,079 183,636 11,190 10,853 Total debt securities $ 238,443 $ 230,747 $ 17,030 $ 16,691 Securities Available For Sale Securities Held To Maturity Amortized Fair Amortized Fair December 31, 2017 Due within one year $ 1,319 $ 1,319 $ 720 $ 721 Due after one year through five years 15,379 15,331 3,245 3,249 Due after five years through ten years 28,242 27,833 1,875 1,878 Due after ten years 174,290 172,239 12,157 12,099 Total debt securities $ 219,230 $ 216,722 $ 17,997 $ 17,947
Held-to-maturity Securities [Member]
Certain Loans Acquired in Transfer Accounted for as Debt Securities Accretable Yield Movement Schedule [Line Items]
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 September 30, 2018 Obligations of state and political subdivisions 8 $ 11,422 $ (109 ) $ — $ — $ 11,422 $ (109 ) Residential mortgage-backed securities 9 3,018 (106 ) 2,251 (124 ) 5,269 (230 ) Total 17 $ 14,440 $ (215 ) $ 2,251 $ (124 ) $ 16,691 $ (339 ) Less than 12 Months 12 Months or More Total Count Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized December 31, 2017 Obligations of state and political subdivisions 1 $ 6,007 $ (15 ) $ — $ — $ 6,007 $ (15 ) Residential mortgage-backed securities 6 1,601 (3 ) 2,522 (45 ) 4,123 (48 ) Total 7 $ 7,608 $ (18 ) $ 2,522 $ (45 ) $ 10,130 $ (63 )

LOANS AND ALLOWANCE FOR LOAN _2

LOANS AND ALLOWANCE FOR LOAN LOSSES (Tables)	9 Months Ended
	Sep. 30, 2018
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). September 30, 2018 December 31, 2017 Construction and development $ 160,921 $ 157,667 1-4 Family 286,976 276,922 Multifamily 50,770 51,283 Farmland 20,902 23,838 Commercial real estate 592,996 537,364 Total mortgage loans on real estate 1,112,565 1,047,074 Commercial and industrial 193,563 135,392 Consumer 52,284 76,313 Total loans $ 1,358,412 $ 1,258,779
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). September 30, 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 $ 160,161 $ 39 $ — $ — $ 705 $ 744 $ 16 $ 160,921 1-4 Family 283,910 839 264 — 1,438 2,541 525 286,976 Multifamily 50,770 — — — — — — 50,770 Farmland 18,638 — — — — — 2,264 20,902 Commercial real estate 589,990 131 — 67 766 964 2,042 592,996 Total mortgage loans on real estate 1,103,469 1,009 264 67 2,909 4,249 4,847 1,112,565 Commercial and industrial 192,093 194 6 — 66 266 1,204 193,563 Consumer 50,815 379 63 — 982 1,424 45 52,284 Total loans $ 1,346,377 $ 1,582 $ 333 $ 67 $ 3,957 $ 5,939 $ 6,096 $ 1,358,412 December 31, 2017 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 $ 157,123 $ 225 $ — $ — $ 34 $ 259 $ 285 $ 157,667 1-4 Family 273,321 1,396 185 56 478 2,115 1,486 276,922 Multifamily 50,271 — — — — — 1,012 51,283 Farmland 19,619 — — 58 — 58 4,161 23,838 Commercial real estate 535,014 107 89 — 67 263 2,087 537,364 Total mortgage loans on real estate 1,035,348 1,728 274 114 579 2,695 9,031 1,047,074 Commercial and industrial 133,009 977 67 — 10 1,054 1,329 135,392 Consumer 74,409 610 152 20 1,118 1,900 4 76,313 Total loans $ 1,242,766 $ 3,315 $ 493 $ 134 $ 1,707 $ 5,649 $ 10,364 $ 1,258,779
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). September 30, 2018 Pass Special Mention Substandard Doubtful Total Construction and development $ 160,273 $ — $ 648 $ — $ 160,921 1-4 Family 285,196 69 1,681 30 286,976 Multifamily 50,770 — — — 50,770 Farmland 18,638 — 2,264 — 20,902 Commercial real estate 591,562 — 1,434 — 592,996 Total mortgage loans on real estate 1,106,439 69 6,027 30 1,112,565 Commercial and industrial 190,578 — 2,985 — 193,563 Consumer 51,079 222 983 — 52,284 Total loans $ 1,348,096 $ 291 $ 9,995 $ 30 $ 1,358,412 December 31, 2017 Pass Special Mention Substandard Doubtful Total Construction and development $ 157,385 $ — $ 282 $ — $ 157,667 1-4 Family 275,492 74 1,356 — 276,922 Multifamily 51,283 — — — 51,283 Farmland 19,611 2,773 1,454 — 23,838 Commercial real estate 536,741 — 623 — 537,364 Total mortgage loans on real estate 1,040,512 2,847 3,715 — 1,047,074 Commercial and industrial 134,522 — 870 — 135,392 Consumer 74,934 258 1,121 — 76,313 Total loans $ 1,249,968 $ 3,105 $ 5,706 $ — $ 1,258,779
Schedule of Aggregate Amount of Loans to Related Parties	The table below shows the aggregate amount of loans to such related parties as of the dates presented (dollars in thousands). September 30, 2018 December 31, 2017 Balance, beginning of period $ 31,153 $ 19,957 New loans 9,824 24,428 Repayments and changes in relationship (12,013 ) (13,232 ) Balance, end of period $ 28,964 $ 31,153
Summary of Accretable Yield on Acquired Impaired Loans	The table below shows the changes in the accretable yield on acquired impaired loans for the periods presented (dollars in thousands). For the three months ended September 30, For the nine months ended September 30, 2018 2017 2018 2017 Balance, beginning of period $ — $ — $ — $ 275 Loan disposals — (53 ) — (303 ) Accretion to interest income — 53 — 28 Balance at September 30, $ — $ — $ — $ —
Schedule of Allowance for Loan Losses	The table below shows a summary of the activity in the allowance for loan losses for the three and nine months ended September 30, 2018 and 2017 (dollars in thousands). Three months ended September 30, Nine months ended September 30, 2018 2017 2018 2017 Balance, beginning of period $ 8,451 $ 7,320 $ 7,891 $ 7,051 Provision for loan losses 785 420 1,977 1,145 Loans charged off (264 ) (155 ) (1,001 ) (635 ) Recoveries 49 20 154 44 Balance, end of period $ 9,021 $ 7,605 $ 9,021 $ 7,605
Summary of Allowance for Loan Losses	The following tables outline the activity in the allowance for loan losses by collateral type for the three and nine months ended September 30, 2018 and 2017 , and show both the allowances and portfolio balances for loans individually and collectively evaluated for impairment as of September 30, 2018 and 2017 (dollars in thousands). Three months ended September 30, 2018 Construction & Development Farmland 1-4 Family Multifamily Commercial Real Estate Commercial & Consumer Total Allowance for loan losses: Beginning balance $ 1,018 $ 66 $ 1,339 $ 319 $ 3,817 $ 1,048 $ 844 $ 8,451 Provision 7 8 101 14 113 454 88 785 Charge-offs (8 ) — (44 ) — — (30 ) (182 ) (264 ) Recoveries 2 — 14 — — 13 20 49 Ending balance $ 1,019 $ 74 $ 1,410 $ 333 $ 3,930 $ 1,485 $ 770 $ 9,021 Three months ended September 30, 2017 Construction & Development Farmland 1-4 Family Multifamily Commercial Real Estate Commercial & Consumer Total Allowance for loan losses: Beginning balance $ 806 $ 54 $ 1,276 $ 361 $ 3,036 $ 683 $ 1,104 $ 7,320 Provision 28 6 (19 ) (21 ) 227 135 64 420 Charge-offs — — — — — (77 ) (78 ) (155 ) Recoveries 14 — 2 — — — 4 20 Ending balance $ 848 $ 60 $ 1,259 $ 340 $ 3,263 $ 741 $ 1,094 $ 7,605 Nine months ended September 30, 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 88 14 182 1 331 1,219 142 1,977 Charge-offs (24 ) — (79 ) — — (481 ) (417 ) (1,001 ) Recoveries 10 — 20 — — 54 70 154 Ending balance $ 1,019 $ 74 $ 1,410 $ 333 $ 3,930 $ 1,485 $ 770 $ 9,021 Ending allowance balance for loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ 246 $ 246 Ending allowance balance for loans acquired with deteriorated credit quality — — — — — — — — Ending allowance balance for loans collectively evaluated for impairment $ 1,019 $ 74 $ 1,410 $ 333 $ 3,930 $ 1,485 $ 524 $ 8,775 Loans receivable: Balance of loans individually evaluated for impairment $ 222 $ — $ 1,911 $ — $ 711 $ 78 $ 910 $ 3,832 Balance of loans acquired with deteriorated credit quality 16 2,264 525 — 2,042 1,204 45 6,096 Balance of loans collectively evaluated for impairment 160,683 18,638 284,540 50,770 590,243 192,281 51,329 1,348,484 Total period-end balance $ 160,921 $ 20,902 $ 286,976 $ 50,770 $ 592,996 $ 193,563 $ 52,284 $ 1,358,412 Nine months ended September 30, 2017 Construction & Development Farmland 1-4 Family Multifamily Commercial Real Estate Commercial & Industrial Consumer Total Allowance for loan losses: Beginning balance $ 579 $ 60 $ 1,377 $ 355 $ 2,499 $ 759 $ 1,422 $ 7,051 Provision 241 — (122 ) (15 ) 764 252 25 1,145 Charge-offs — — — — — (270 ) (365 ) (635 ) Recoveries 28 — 4 — — — 12 44 Ending balance $ 848 $ 60 $ 1,259 $ 340 $ 3,263 $ 741 $ 1,094 $ 7,605 Ending allowance balance for loans individually evaluated for impairment $ — $ — $ — $ — $ — $ — $ 336 $ 336 Ending allowance balance for loans collectively evaluated for impairment 848 60 1,259 340 3,263 741 758 7,269 Ending allowance balance for loans acquired with deteriorated credit quality $ — $ — $ — $ — $ — $ — $ — $ — Loans receivable: Balance of loans individually evaluated for impairment $ 186 $ — $ 1,452 $ — $ 651 $ 6 $ 1,182 $ 3,477 Balance of loans collectively evaluated for impairment 122,315 14,130 250,551 50,770 461,771 125,224 82,283 1,107,044 Total period-end balance $ 122,501 $ 14,130 $ 252,003 $ 50,770 $ 462,422 $ 125,230 $ 83,465 $ 1,110,521 Balance of loans acquired with deteriorated credit quality $ 55 $ — $ 2,814 $ 1,806 $ 3,033 $ 1,884 $ 5 $ 9,597
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). September 30, 2018 Recorded Investment Unpaid Principal Balance Related Allowance With no related allowance recorded: Construction and development $ 222 $ 240 $ — 1-4 Family 1,911 1,921 — Commercial real estate 711 727 — Total mortgage loans on real estate 2,844 2,888 — Commercial and industrial 78 78 — Consumer 202 228 — Total 3,124 3,194 — With related allowance recorded: Consumer 708 745 246 Total 708 745 246 Total loans: Construction and development 222 240 — 1-4 Family 1,911 1,921 — Commercial real estate 711 727 — Total mortgage loans on real estate 2,844 2,888 — Commercial and industrial 78 78 — Consumer 910 973 246 Total $ 3,832 $ 3,939 $ 246 December 31, 2017 Recorded Investment Unpaid Principal Balance Related Allowance With no related allowance recorded: Construction and development $ 182 $ 202 $ — 1-4 Family 1,136 1,169 — Commercial real estate 640 654 — Total mortgage loans on real estate 1,958 2,025 — Consumer 168 217 — Total 2,126 2,242 — With related allowance recorded: Consumer 918 956 304 Total 918 956 304 Total loans: Construction and development 182 202 — 1-4 Family 1,136 1,169 — Commercial real estate 640 654 — Total mortgage loans on real estate 1,958 2,025 — Consumer 1,086 1,173 304 Total $ 3,044 $ 3,198 $ 304
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 September 30, 2018 2017 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized With no related allowance recorded: Construction and development $ 266 $ 3 $ 187 $ 2 1-4 Family 1,739 9 1,231 18 Commercial real estate 711 2 632 8 Total mortgage loans on real estate 2,716 14 2,050 28 Commercial and industrial 76 — 22 — Consumer 235 — 196 — Total 3,027 14 2,268 28 With related allowance recorded: Consumer 693 — 933 — Total 693 — 933 — Total loans: Construction and development 266 3 187 2 1-4 Family 1,739 9 1,231 18 Commercial real estate 711 2 632 8 Total mortgage loans on real estate 2,716 14 2,050 28 Commercial and industrial 76 — 22 — Consumer 928 — 1,129 — Total $ 3,720 $ 14 $ 3,201 $ 28 Nine months ended September 30, 2018 2017 Average Interest Average Interest With no related allowance recorded: Construction and development $ 203 $ 7 $ 389 $ 8 1-4 Family 1,386 30 1,517 61 Commercial real estate 923 18 613 35 Total mortgage loans on real estate 2,512 55 2,519 104 Commercial and industrial 345 — 163 — Consumer 404 — 322 1 Total 3,261 55 3,004 105 With related allowance recorded: Consumer 626 — 813 1 Total 626 — 813 1 Total loans: Construction and development 203 7 389 8 1-4 Family 1,386 30 1,517 61 Commercial real estate 923 18 613 35 Total mortgage loans on real estate 2,512 55 2,519 104 Commercial and industrial 345 — 163 — Consumer 1,030 — 1,135 2 Total $ 3,887 $ 55 $ 3,817 $ 106
Summary of TDR Pre- and Post-modification Outstanding Recorded Investments by Loan Categories	The table below presents the TDR pre- and post-modification outstanding recorded investments by loan categories for loans modified during the nine month periods ended September 30, 2018 and 2017 (dollars in thousands). September 30, 2018 September 30, 2017 Troubled Debt Restructurings Number of Contracts Pre- Modification Post- Modification Number of Contracts Pre- Modification Post- Modification Construction and development 2 $ 358 $ 358 — $ — $ — 1-4 Family 7 400 400 — — — Commercial and industrial 2 12 12 — — — Consumer — — — 1 6 6 Total $ 770 $ 770 $ 6 $ 6

STOCKHOLDERS' EQUITY (Tables)

STOCKHOLDERS' EQUITY (Tables)	9 Months Ended
	Sep. 30, 2018
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	Activity within the balances in accumulated other comprehensive income (loss), net is shown in the tables below (dollars in thousands). Three months ended September 30, 2018 2017 Beginning of Period Net Change End of Period Beginning of Period Net Change End of Period Unrealized (loss) gain, available for sale, net $ (2,594 ) $ (1,542 ) $ (4,136 ) $ 824 $ 95 $ 919 Reclassification of realized gain, net (1,931 ) (12 ) (1,943 ) (1,822 ) (18 ) (1,840 ) Unrealized loss, transfer from available for sale to held to maturity, net 6 — 6 7 — 7 Change in fair value of interest rate swap designated as a cash flow hedge, net 744 (11 ) 733 82 37 119 Accumulated other comprehensive (loss) income $ (3,775 ) $ (1,565 ) $ (5,340 ) $ (909 ) $ 114 $ (795 ) Nine months ended September 30, 2018 2017 Beginning of Period Net Change End of Period Beginning of Period Net Change End of Period Unrealized (loss) gain, available for sale, net $ (71 ) $ (4,065 ) $ (4,136 ) $ (401 ) $ 1,320 $ 919 Reclassification of realized gain, net (1,914 ) (29 ) (1,943 ) (1,683 ) (157 ) (1,840 ) Unrealized loss, transfer from available for sale to held to maturity, net 7 (1 ) 6 8 (1 ) 7 Change in fair value of interest rate swap designated as a cash flow hedge, net 407 326 733 5 114 119 Accumulated other comprehensive (loss) income $ (1,571 ) $ (3,769 ) $ (5,340 ) $ (2,071 ) $ 1,276 $ (795 )

STOCK-BASED COMPENSATION (Table

STOCK-BASED COMPENSATION (Tables)	9 Months Ended
	Sep. 30, 2018
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 nine months ended September 30, 2018 . Expected dividends 0.52 % Expected volatility 24.99 % Risk-free interest rate 2.68 % Expected term (in years) 6.5 Weighted-average grant date fair value $ 7.16
Schedule of Stock Option Activity	The table below summarizes stock option activity for the periods presented. Nine months ended September 30, 2018 2017 Number of Options Weighted Average Exercise Price Number of Options Weighted Average Exercise Price Outstanding at beginning of period 322,917 $ 15.09 319,364 $ 14.37 Granted 31,788 24.30 36,177 20.25 Forfeited (1,333 ) 14.00 (5,334 ) 14.00 Exercised (12,415 ) 14.07 (17,791 ) 13.53 Outstanding at end of period 340,957 $ 15.99 332,416 $ 15.06 Exercisable at end of period 99,917 $ 15.17 124,426 $ 14.38
Time Vested Restricted Stock Award Activity	The table below summarizes the time vested restricted stock award activity for the periods presented. Nine months ended September 30, 2018 2017 Shares Weighted Average Grant Date Fair Value Shares Weighted Average Grant Date Fair Value Balance at beginning of period 112,688 $ 17.28 93,366 $ 14.75 Granted 60,260 24.35 54,724 20.18 Forfeited (2,767 ) 20.90 (8,259 ) 16.05 Earned and issued (33,207 ) 16.80 (25,949 ) 14.80 Balance at end of period 136,974 $ 20.44 113,882 $ 17.25

FAIR VALUES OF FINANCIAL INST_2

FAIR VALUES OF FINANCIAL INSTRUMENTS (Tables)	9 Months Ended
	Sep. 30, 2018
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) September 30, 2018 Assets: Obligations of U.S. government agencies and corporations $ 7,868 $ — $ 7,868 $ — Obligations of state and political subdivisions 33,961 — 15,137 18,824 Corporate bonds 15,544 — 14,222 1,322 Residential mortgage-backed securities 116,976 — 116,976 — Commercial mortgage-backed securities 56,398 — 56,398 — Equity securities 633 633 — — Derivative financial instruments 929 — 929 — Total assets $ 232,309 $ 633 $ 211,530 $ 20,146 December 31, 2017 Assets: Obligations of U.S. government agencies and corporations $ 8,168 $ — $ 8,168 $ — Obligations of state and political subdivisions 35,237 — 15,694 19,543 Corporate bonds 16,210 — 14,885 1,325 Residential mortgage-backed securities 109,478 — 109,478 — Commercial mortgage-backed securities 47,629 — 47,629 — Equity securities 842 842 — — Derivative financial instruments 516 — 516 — Total assets $ 218,080 $ 842 $ 196,370 $ 20,868
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 nine months ended September 30, 2018 and September 30, 2017 (dollars in thousands). Obligations of State and Political Subdivisions Corporate Bonds Total Balance at December 31, 2017 $ 19,543 $ 1,325 $ 20,868 Realized gains (losses) included in net income — — — Unrealized gains (losses) included in other comprehensive income (719 ) (3 ) (722 ) Purchases — — — Sales — — — Transfers into level 3 — — — Transfers out of level 3 — — — Balance at September 30, 2018 $ 18,824 $ 1,322 $ 20,146 Obligations of State and Corporate Bonds Total Balance at December 31, 2016 $ 17,656 $ 624 $ 18,280 Realized gains (losses) included in net income — — — Unrealized gains (losses) included in other comprehensive income 1,942 4 1,946 Purchases — 700 700 Sales — — — Transfers into level 3 — — — Transfers out of level 3 — — — Balance at September 30, 2017 $ 19,598 $ 1,328 $ 20,926
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 September 30, 2018 or December 31, 2017 (dollars in thousands). Estimated Valuation Technique Unobservable Inputs Range of Discounts Weighted Average Discount September 30, 2018 Impaired loans $ 373 Discounted cash flows, Underlying collateral value Collateral discounts and estimated costs to sell 0% - 100% 15% December 31, 2017 Impaired loans $ 380 Discounted cash flows, Underlying collateral value Collateral discounts and estimated costs to sell 0% - 100% 32% Other real estate owned 3,612 Underlying collateral value, Third party appraisals Collateral discounts and discount rates 5% 5%
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). September 30, 2018 Carrying Amount Estimated Fair Value Level 1 Level 2 Level 3 Financial assets: Cash and due from banks $ 24,503 $ 24,503 $ 24,503 $ — $ — Federal funds sold 285 285 285 — — Investment securities 247,777 247,438 — 215,871 31,567 Equity securities 12,671 12,671 633 12,038 — Loans, net of allowance 1,349,391 1,342,314 — — 1,342,314 Derivative financial instruments 929 929 — 929 — Financial liabilities: Deposits, noninterest-bearing $ 214,190 $ 214,190 $ — $ 214,190 $ — Deposits, interest-bearing 1,081,431 1,031,041 — — 1,031,041 FHLB short-term advances and repurchase agreements 222,931 222,931 — 222,931 — FHLB long-term advances 3,083 2,514 — — 2,514 Junior subordinated debt 5,832 6,924 — — 6,924 Subordinated debt 18,600 18,355 — 18,355 — December 31, 2017 Carrying Amount Estimated Fair Value Level 1 Level 2 Level 3 Financial assets: Cash and due from banks $ 30,421 $ 30,421 $ 30,421 $ — $ — Investment securities 235,561 235,511 842 201,946 32,723 Equity securities 9,798 9,799 — 9,799 — Loans, net of allowance 1,250,888 1,249,844 — — 1,249,844 Derivative financial instruments 516 516 — 516 — Financial liabilities: Deposits, noninterest-bearing $ 216,599 $ 216,599 $ — $ 216,599 $ — Deposits, interest-bearing 1,008,638 977,127 — — 977,127 FHLB short-term advances and repurchase agreements 148,535 148,535 — 148,535 — FHLB long-term advances 40,058 39,927 — — 39,927 Junior subordinated debt 5,792 5,576 — — 5,576 Subordinated debt 18,600 18,857 — 18,857 —

INCOME TAXES (Tables)

INCOME TAXES (Tables)	9 Months Ended
	Sep. 30, 2018
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 September 30, Nine months ended September 30, 2018 2017 2018 2017 Income tax expense $ 516 $ 1,032 $ 2,823 $ 2,756 Effective tax rate 11.3 % 32.6 % 21.6 % 31.8 %

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Tables)	9 Months Ended
	Sep. 30, 2018
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). September 30, 2018 December 31, 2017 Commitments to extend credit Loan commitments $ 221,237 $ 174,278 Standby letters of credit 11,177 3,832

SUMMARY OF SIGNIFICANT ACCOUN_3

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Sep. 30, 2018USD ($)EmployeeBank
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of full service banking offices | Bank			20
Number of employees | Employee			253
Unfunded loan commitments		$ 32	$ 101
Additional income tax expense	$ 600	$ 300	557	[1]
Equity securities			1,400
ASU 2016-01 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Equity securities	$ 1,400
Exchange Traded Equity Securities [Member] | ASU 2016-01 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Fair value of cost method investments			$ 600
[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 September 30, 2018 represents a reclassification of the tax effects of the Tax Cuts and Jobs Act.

BUSINESS COMBINATIONS - Narrati

BUSINESS COMBINATIONS - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	Dec. 01, 2017	Jul. 01, 2017	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Business Acquisition [Line Items]
Interest income of acquiree			$ 3,300		$ 10,500
Noninterest income of acquiree			400		1,200
Net income of acquiree			1,100		2,500
Acquisition expense			0	$ 824	1,104	$ 1,049
Citizens Bancshares Inc [Member]
Business Acquisition [Line Items]
Cash paid		$ 45,800
Share price (in dollars per share)		$ 419.20
Total assets acquired		$ 250,650
Loans		129,181
Deposits		212,228
Goodwill		$ 9,053	9,100		9,100
Pro forma tax expense						$ 1,500
BOJ Bancshares, Inc [Member]
Business Acquisition [Line Items]
Cash paid	$ 3,950
Fair value adjustment					(300)
Total assets acquired	152,143		152,100		152,100
Loans	102,393		102,400		102,400
Deposits	125,788		125,800		125,800
Goodwill	$ 5,687		$ 5,700		$ 5,700
Merger consideration, aggregate shares of common stock (in shares)	799,559
Total consideration transferred	$ 22,700
Pro forma tax expense				$ 700

BUSINESS COMBINATIONS - Schedul

BUSINESS COMBINATIONS - Schedule Of Recognized Identified Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Dec. 01, 2017	Jul. 01, 2017	Sep. 30, 2018
Citizens Bancshares Inc [Member]
Purchase price:
Cash paid		$ 45,800
Fair value of assets acquired:
Cash and cash equivalents		44,565
Investment securities		69,912
Loans		129,181
Bank premises and equipment		3,307
Core deposit intangible asset		1,462
Other assets		2,223
Total assets acquired		250,650
Fair value of liabilities acquired:
Deposits		212,228
Other liabilities		1,675
Total liabilities assumed		213,903
Fair value of net assets acquired		36,747
Goodwill		$ 9,053	$ 9,100
BOJ Bancshares, Inc [Member]
Purchase price:
Cash paid	$ 3,950
Stock Issued	18,749
Fair value of assets acquired:
Cash and cash equivalents	26,438
Investment securities	16,194
Loans	102,393		102,400
Bank premises and equipment	3,725
Core deposit intangible asset	1,018
Other assets	2,375
Total assets acquired	152,143		152,100
Fair value of liabilities acquired:
Deposits	125,788		125,800
FHLB advances	5,956
Trust preferred	2,178
Other liabilities	1,209
Total liabilities assumed	135,131
Fair value of net assets acquired	17,012
Goodwill	$ 5,687		$ 5,700

BUSINESS COMBINATIONS - Separat

BUSINESS COMBINATIONS - Separately Recognized Transactions (Details) - USD ($) $ in Thousands	Dec. 01, 2017	Jul. 01, 2017
Citizens Bancshares Inc [Member]
Purchase Credit Impaired
Contractually required principal		$ 5,123
Non-accretable difference		(700)
Cash flows expected to be collected		4,423
Accretable yield		0
Fair value of acquired loans		$ 4,423
BOJ Bancshares, Inc [Member]
Purchase Credit Impaired
Contractually required principal	$ 4,557
Non-accretable difference	(671)
Cash flows expected to be collected	3,886
Accretable yield	0
Fair value of acquired loans	$ 3,886

BUSINESS COMBINATIONS - Busines

BUSINESS COMBINATIONS - Business Acquisition Pro Forma Information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2017
Business Combinations [Abstract]
Interest income	$ 15,966	$ 46,065
Noninterest income	1,436	4,106
Net income	$ 3,001	$ 8,206

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		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Earnings per common share - basic
Net income allocated to common shareholders	$ 3,990	$ 2,131	$ 10,125	$ 5,918
Weighted-average basic shares outstanding (in shares)	9,563,550	8,702,559	9,545,436	8,203,645
Basic earnings per common share (in dollars per share)	$ 0.42	$ 0.24	$ 1.06	$ 0.72
Earnings per common share - diluted
Net income allocated to common shareholders	$ 3,990	$ 2,131	$ 10,126	$ 5,918
Dilutive effect of securities (in shares)	119,330	94,958	133,503	76,350
Total weighted average diluted shares outstanding (in shares)	9,682,880	8,797,517	9,678,939	8,279,995
Diluted earnings per common share (in dollars per share)	$ 0.41	$ 0.24	$ 1.05	$ 0.71

EARNINGS PER SHARE - Antidiluti

EARNINGS PER SHARE - Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share (in shares)	31,788	36,177	24,918	28,138

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	Sep. 30, 2018	Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Debt securities, Amortized Cost	$ 238,443	$ 219,230
Debt securities, Gross Unrealized Gains	42
Debt securities, Gross Unrealized Losses	(7,738)
Debt securities, Fair Value	230,747	216,722
Equity securities, fair value	1,400
Total, Amortized Cost	238,443	220,077
Total, Gross Unrealized Gains		305
Total, Gross Unrealized Losses		(2,818)
Total, Fair Value	230,747	217,564
Obligations of U.S. government agencies and corporations [Member]
Schedule of Available-for-sale Securities [Line Items]
Debt securities, Amortized Cost	8,098	8,241
Debt securities, Gross Unrealized Gains	2	8
Debt securities, Gross Unrealized Losses	(232)	(81)
Debt securities, Fair Value	7,868	8,168
Obligations of state and political subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Debt securities, Amortized Cost	35,060	35,572
Debt securities, Gross Unrealized Gains	3	87
Debt securities, Gross Unrealized Losses	(1,102)	(422)
Debt securities, Fair Value	33,961	35,237
Corporate bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Debt securities, Amortized Cost	16,022	16,428
Debt securities, Gross Unrealized Gains	22	112
Debt securities, Gross Unrealized Losses	(500)	(330)
Debt securities, Fair Value	15,544	16,210
Residential mortgage-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Debt securities, Amortized Cost	120,778	110,690
Debt securities, Gross Unrealized Gains	11	58
Debt securities, Gross Unrealized Losses	(3,813)	(1,270)
Debt securities, Fair Value	116,976	109,478
Commercial mortgage-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Debt securities, Amortized Cost	58,485	48,299
Debt securities, Gross Unrealized Gains	4	16
Debt securities, Gross Unrealized Losses	(2,091)	(686)
Debt securities, Fair Value	$ 56,398	47,629
Equity securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Equity securities, Amortized Cost		847
Equity securities, Gross Unrealized Gains		24
Equity securities, Gross Unrealized Losses		(29)
Equity securities, fair value		$ 842

INVESTMENT SECURITIES - Sched_2

INVESTMENT SECURITIES - Schedules of Proceeds from Sale of Investment Securities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Investments, Debt and Equity Securities [Abstract]
Proceeds from sale	$ 7,021	$ 63,488	$ 7,021	$ 82,537
Gross gains	35		35
Gross gains		27		275
Gross losses	$ (20)		$ (20)
Gross losses		$ 0		$ (33)

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	Sep. 30, 2018	Dec. 31, 2017
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 17,030	$ 17,997
Gross Unrealized Gains	0	13
Gross Unrealized Losses	(339)	(63)
Fair Value	16,691	17,947
Obligations of state and political subdivisions [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	11,531	11,861
Gross Unrealized Gains	0	9
Gross Unrealized Losses	(109)	(15)
Fair Value	11,422	11,855
Residential mortgage-backed securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	5,499	6,136
Gross Unrealized Gains	0	4
Gross Unrealized Losses	(230)	(48)
Fair Value	$ 5,269	$ 6,092

INVESTMENT SECURITIES - Additio

INVESTMENT SECURITIES - Additional Information (Detail) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Securities classified as trading securities	$ 0	$ 0
Pledged securities	$ 90,400,000	$ 90,800,000

INVESTMENT SECURITIES - Sched_4

INVESTMENT SECURITIES - Schedule of Unrealized Losses and Fair Value by Investment Category for Securities Available for Sale (Detail) $ in Thousands	Sep. 30, 2018USD ($)Security	Dec. 31, 2017USD ($)Security
Schedule of Available-for-sale Securities [Line Items]
Count | Security	434
Count | Security		331
Less than 12 months fair value	$ 105,233
Less than 12 months, fair value		$ 121,584
Less than 12 Months unrealized losses	(2,314)
Less than 12 months unrealized losses		(1,268)
12 months or more fair value	120,616
12 months or more, fair value		57,812
12 months or more unrealized losses	(5,424)
12 months or more unrealized losses		(1,550)
Total fair value	225,849
Total Fair Value		179,396
Total unrealized losses	$ (7,738)
Unrealized losses		$ (2,818)
Obligations of U.S. government agencies and corporations [Member]
Schedule of Available-for-sale Securities [Line Items]
Count | Security	18
Count | Security		14
Less than 12 months fair value	$ 3,857
Less than 12 months, fair value		$ 5,815
Less than 12 Months unrealized losses	(80)
Less than 12 months unrealized losses		(50)
12 months or more fair value	3,873
12 months or more, fair value		1,505
12 months or more unrealized losses	(152)
12 months or more unrealized losses		(31)
Total fair value	7,730
Total Fair Value		7,320
Total unrealized losses	$ (232)
Unrealized losses		$ (81)
Obligations of state and political subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Count | Security	66
Count | Security		57
Less than 12 months fair value	$ 20,855
Less than 12 months, fair value		$ 12,315
Less than 12 Months unrealized losses	(529)
Less than 12 months unrealized losses		(77)
12 months or more fair value	12,986
12 months or more, fair value		9,930
12 months or more unrealized losses	(573)
12 months or more unrealized losses		(345)
Total fair value	33,841
Total Fair Value		22,245
Total unrealized losses	$ (1,102)
Unrealized losses		$ (422)
Corporate bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Count | Security	29
Count | Security		20
Less than 12 months fair value	$ 7,561
Less than 12 months, fair value		$ 1,116
Less than 12 Months unrealized losses	(63)
Less than 12 months unrealized losses		(6)
12 months or more fair value	5,811
12 months or more, fair value		6,273
12 months or more unrealized losses	(437)
12 months or more unrealized losses		(324)
Total fair value	13,372
Total Fair Value		7,389
Total unrealized losses	$ (500)
Unrealized losses		$ (330)
Residential mortgage-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Count | Security	209
Count | Security		159
Less than 12 months fair value	$ 49,705
Less than 12 months, fair value		$ 71,893
Less than 12 Months unrealized losses	(1,102)
Less than 12 months unrealized losses		(729)
12 months or more fair value	65,629
12 months or more, fair value		28,410
12 months or more unrealized losses	(2,711)
12 months or more unrealized losses		(541)
Total fair value	115,334
Total Fair Value		100,303
Total unrealized losses	$ (3,813)
Unrealized losses		$ (1,270)
Commercial mortgage-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Count | Security	112
Count | Security		80
Less than 12 months fair value	$ 23,255
Less than 12 months, fair value		$ 30,445
Less than 12 Months unrealized losses	(540)
Less than 12 months unrealized losses		(406)
12 months or more fair value	32,317
12 months or more, fair value		11,216
12 months or more unrealized losses	(1,551)
12 months or more unrealized losses		(280)
Total fair value	55,572
Total Fair Value		41,661
Total unrealized losses	$ (2,091)
Unrealized losses		$ (686)
Equity securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Count | Security		1
Less than 12 months, fair value		$ 0
Less than 12 months unrealized losses		0
12 months or more, fair value		478
12 months or more unrealized losses		(29)
Total Fair Value		478
Unrealized losses		$ (29)

INVESTMENT SECURITIES - Sched_5

INVESTMENT SECURITIES - Schedule of Unrealized Losses and Fair Value by Investment Category for Securities Held to Maturity (Detail) $ in Thousands	Sep. 30, 2018USD ($)Security	Dec. 31, 2017USD ($)Security
Schedule of Held-to-maturity Securities [Line Items]
Count | Security	17	7
Less than 12 months, fair value	$ 14,440	$ 7,608
Less than 12 months, unrealized losses	(215)	(18)
12 months or more, fair value	2,251	2,522
12 months or more, unrealized losses	(124)	(45)
Total, fair value	16,691	10,130
Total, unrealized losses	$ (339)	$ (63)
Obligations of state and political subdivisions [Member]
Schedule of Held-to-maturity Securities [Line Items]
Count | Security	8	1
Less than 12 months, fair value	$ 11,422	$ 6,007
Less than 12 months, unrealized losses	(109)	(15)
12 months or more, fair value	0	0
12 months or more, unrealized losses	0	0
Total, fair value	11,422	6,007
Total, unrealized losses	$ (109)	$ (15)
Residential mortgage-backed securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Count | Security	9	6
Less than 12 months, fair value	$ 3,018	$ 1,601
Less than 12 months, unrealized losses	(106)	(3)
12 months or more, fair value	2,251	2,522
12 months or more, unrealized losses	(124)	(45)
Total, fair value	5,269	4,123
Total, unrealized losses	$ (230)	$ (48)

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	Sep. 30, 2018	Dec. 31, 2017
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis [Abstract]
Amortized cost of securities available-for-sale, due within one year	$ 4,105	$ 1,319
Amortized cost of securities available-for-sale, due after one year through five years	10,492	15,379
Amortized cost of securities available-for-sale, due after five years through ten years	33,767	28,242
Amortized cost of securities available-for-sale, due after ten years	190,079	174,290
Debt securities, Amortized Cost	238,443	219,230
Available-for-sale Securities, Debt Maturities, Single Maturity Date [Abstract]
Fair value of securities available-for-sale, due within one year	4,095	1,319
Fair value of securities available-for-sale, due after one year through five years	10,326	15,331
Fair value of securities available-for-sale, due after five years through ten years	32,690	27,833
Fair value of securities available-for-sale, due after ten years	183,636	172,239
Fair value of total debt securities available-for-sale	230,747	216,722
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis [Abstract]
Amortized cost of securities held-to-maturity, due within one year	720	720
Amortized cost of securities held-to-maturity, due after one year through five years	3,245	3,245
Amortized cost of securities held-to-maturity, due after five years through ten years	1,875	1,875
Amortized cost of securities held-to-maturity, due after ten years	11,190	12,157
Amortized Cost	17,030	17,997
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Fair Value [Abstract]
Fair value of securities held-to-maturity, due within one year	720	721
Fair value of securities held-to-maturity, due after one year through five years	3,244	3,249
Fair value of securities held-to-maturity, due after five years through ten years	1,874	1,878
Fair value of securities held-to-maturity, due after ten years	10,853	12,099
Fair value of total debt securities held-to-maturity	$ 16,691	$ 17,947

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	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 1,358,412	$ 1,258,779	$ 1,110,521
Mortgage Loans on Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,112,565	1,047,074
Mortgage Loans on Real Estate [Member] | Construction and development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	160,921	157,667	122,501
Mortgage Loans on Real Estate [Member] | 1-4 Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	286,976	276,922	252,003
Mortgage Loans on Real Estate [Member] | Multifamily [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	50,770	51,283
Mortgage Loans on Real Estate [Member] | Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	20,902	23,838	14,130
Mortgage Loans on Real Estate [Member] | Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	592,996	537,364	462,422
Commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	193,563	135,392	125,230
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 52,284	$ 76,313	$ 83,465

LOANS AND ALLOWANCE FOR LOAN _4

LOANS AND ALLOWANCE FOR LOAN LOSSES - Additional Information (Detail) - USD ($)	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unamortized premiums and discounts	$ 1,600,000	$ 2,600,000
Total loans	1,358,412,000	1,258,779,000	$ 1,110,521,000
Balances of loans sold to and serviced for others	144,700,000	204,200,000
Unpaid principal balances of loans sold to and serviced for others	186,300,000	237,300,000
Loan outstanding to related parties	28,964,000	31,153,000		$ 19,957,000
Loss [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	0	0
Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	9,995,000	$ 5,706,000
Loan outstanding to related parties	$ 700,000

LOANS AND ALLOWANCE FOR LOAN _5

LOANS AND ALLOWANCE FOR LOAN LOSSES - Schedule of Aging Analysis of Loans (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	$ 1,346,377	$ 1,242,766
Nonaccrual	3,957	1,707
Total Past Due & Nonaccrual	5,939	5,649
Acquired Impaired Loans	6,096	10,364
Total Loans	1,358,412	1,258,779	$ 1,110,521
30-59 days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	1,582	3,315
60-89 days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	333	493
90 or more days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	67	134
Mortgage Loans on Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	1,103,469	1,035,348
Nonaccrual	2,909	579
Total Past Due & Nonaccrual	4,249	2,695
Acquired Impaired Loans	4,847	9,031
Total Loans	1,112,565	1,047,074
Mortgage Loans on Real Estate [Member] | 30-59 days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	1,009	1,728
Mortgage Loans on Real Estate [Member] | 60-89 days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	264	274
Mortgage Loans on Real Estate [Member] | 90 or more days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	67	114
Mortgage Loans on Real Estate [Member] | Construction and development [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	160,161	157,123
Nonaccrual	705	34
Total Past Due & Nonaccrual	744	259
Acquired Impaired Loans	16	285
Total Loans	160,921	157,667	122,501
Mortgage Loans on Real Estate [Member] | Construction and development [Member] | 30-59 days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	39	225
Mortgage Loans on Real Estate [Member] | Construction and development [Member] | 60-89 days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Mortgage Loans on Real Estate [Member] | Construction and development [Member] | 90 or more days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Mortgage Loans on Real Estate [Member] | 1-4 Family [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	283,910	273,321
Nonaccrual	1,438	478
Total Past Due & Nonaccrual	2,541	2,115
Acquired Impaired Loans	525	1,486
Total Loans	286,976	276,922	252,003
Mortgage Loans on Real Estate [Member] | 1-4 Family [Member] | 30-59 days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	839	1,396
Mortgage Loans on Real Estate [Member] | 1-4 Family [Member] | 60-89 days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	264	185
Mortgage Loans on Real Estate [Member] | 1-4 Family [Member] | 90 or more days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	56
Mortgage Loans on Real Estate [Member] | Multifamily [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	50,770	50,271
Nonaccrual	0	0
Total Past Due & Nonaccrual	0	0
Acquired Impaired Loans	0	1,012
Total Loans	50,770	51,283
Mortgage Loans on Real Estate [Member] | Multifamily [Member] | 30-59 days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Mortgage Loans on Real Estate [Member] | Multifamily [Member] | 60-89 days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Mortgage Loans on Real Estate [Member] | Multifamily [Member] | 90 or more days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Mortgage Loans on Real Estate [Member] | Farmland [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	18,638	19,619
Nonaccrual	0	0
Total Past Due & Nonaccrual	0	58
Acquired Impaired Loans	2,264	4,161
Total Loans	20,902	23,838	14,130
Mortgage Loans on Real Estate [Member] | Farmland [Member] | 30-59 days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Mortgage Loans on Real Estate [Member] | Farmland [Member] | 60-89 days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Mortgage Loans on Real Estate [Member] | Farmland [Member] | 90 or more days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	58
Mortgage Loans on Real Estate [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	589,990	535,014
Nonaccrual	766	67
Total Past Due & Nonaccrual	964	263
Acquired Impaired Loans	2,042	2,087
Total Loans	592,996	537,364	462,422
Mortgage Loans on Real Estate [Member] | Commercial Real Estate [Member] | 30-59 days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	131	107
Mortgage Loans on Real Estate [Member] | Commercial Real Estate [Member] | 60-89 days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	89
Mortgage Loans on Real Estate [Member] | Commercial Real Estate [Member] | 90 or more days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	67	0
Commercial and industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	192,093	133,009
Nonaccrual	66	10
Total Past Due & Nonaccrual	266	1,054
Acquired Impaired Loans	1,204	1,329
Total Loans	193,563	135,392	125,230
Commercial and industrial [Member] | 30-59 days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	194	977
Commercial and industrial [Member] | 60-89 days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	6	67
Commercial and industrial [Member] | 90 or more days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	50,815	74,409
Nonaccrual	982	1,118
Total Past Due & Nonaccrual	1,424	1,900
Acquired Impaired Loans	45	4
Total Loans	52,284	76,313	$ 83,465
Consumer [Member] | 30-59 days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	379	610
Consumer [Member] | 60-89 days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	63	152
Consumer [Member] | 90 or more days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	$ 0	$ 20

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	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 1,358,412	$ 1,258,779	$ 1,110,521
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,348,096	1,249,968
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	291	3,105
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	9,995	5,706
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	30	0
Mortgage Loans on Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,112,565	1,047,074
Mortgage Loans on Real Estate [Member] | Construction and development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	160,921	157,667	122,501
Mortgage Loans on Real Estate [Member] | 1-4 Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	286,976	276,922	252,003
Mortgage Loans on Real Estate [Member] | Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	50,770	51,283	50,770
Mortgage Loans on Real Estate [Member] | Farmland [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	20,902	23,838	14,130
Mortgage Loans on Real Estate [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	592,996	537,364	462,422
Mortgage Loans on Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,106,439	1,040,512
Mortgage Loans on Real Estate [Member] | Pass [Member] | Construction and development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	160,273	157,385
Mortgage Loans on Real Estate [Member] | Pass [Member] | 1-4 Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	285,196	275,492
Mortgage Loans on Real Estate [Member] | Pass [Member] | Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	50,770	51,283
Mortgage Loans on Real Estate [Member] | Pass [Member] | Farmland [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	18,638	19,611
Mortgage Loans on Real Estate [Member] | Pass [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	591,562	536,741
Mortgage Loans on Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	69	2,847
Mortgage Loans on Real Estate [Member] | Special Mention [Member] | Construction and development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Mortgage Loans on Real Estate [Member] | Special Mention [Member] | 1-4 Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	69	74
Mortgage Loans on Real Estate [Member] | Special Mention [Member] | Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Mortgage Loans on Real Estate [Member] | Special Mention [Member] | Farmland [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	2,773
Mortgage Loans on Real Estate [Member] | Special Mention [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Mortgage Loans on Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	6,027	3,715
Mortgage Loans on Real Estate [Member] | Substandard [Member] | Construction and development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	648	282
Mortgage Loans on Real Estate [Member] | Substandard [Member] | 1-4 Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,681	1,356
Mortgage Loans on Real Estate [Member] | Substandard [Member] | Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Mortgage Loans on Real Estate [Member] | Substandard [Member] | Farmland [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,264	1,454
Mortgage Loans on Real Estate [Member] | Substandard [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,434	623
Mortgage Loans on Real Estate [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	30	0
Mortgage Loans on Real Estate [Member] | Doubtful [Member] | Construction and development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Mortgage Loans on Real Estate [Member] | Doubtful [Member] | 1-4 Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	30	0
Mortgage Loans on Real Estate [Member] | Doubtful [Member] | Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Mortgage Loans on Real Estate [Member] | Doubtful [Member] | Farmland [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Mortgage Loans on Real Estate [Member] | Doubtful [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Commercial and industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	193,563	135,392	125,230
Commercial and industrial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	190,578	134,522
Commercial and industrial [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Commercial and industrial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,985	870
Commercial and industrial [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	52,284	76,313	$ 83,465
Consumer [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	51,079	74,934
Consumer [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	222	258
Consumer [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	983	1,121
Consumer [Member] | Doubtful [Member]
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	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Loans and Leases Receivable, Related Parties [Roll Forward]
Balance, beginning of period	$ 31,153	$ 19,957
New loans	9,824	24,428
Repayments and changes in relationship	(12,013)	(13,232)
Balance, end of period	$ 28,964	$ 31,153

LOANS AND ALLOWANCE FOR LOAN _8

LOANS AND ALLOWANCE FOR LOAN LOSSES - Summary of Accretable Yield on Acquired Impaired Loans (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance, beginning of period	$ 0	$ 0	$ 0	$ 275
Loan disposals	0	(53)	0	(303)
Accretion to interest income	0	53	0	28
Balance at September 30,	$ 0	$ 0	$ 0	$ 0

LOANS AND ALLOWANCE FOR LOAN _9

LOANS AND ALLOWANCE FOR LOAN LOSSES - Schedule of Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Allowance for loan losses:
Balance, beginning of period	$ 8,451	$ 7,320	$ 7,891	$ 7,051
Provision for loan losses	785	420	1,977	1,145
Loans charged off	(264)	(155)	(1,001)	(635)
Recoveries	49	20	154	44
Balance, end of period	$ 9,021	$ 7,605	$ 9,021	$ 7,605

LOANS AND ALLOWANCE FOR LOAN_10

LOANS AND ALLOWANCE FOR LOAN LOSSES - Summary of Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017
Allowance for loan losses:
Balance, beginning of period	$ 8,451	$ 7,320	$ 7,891	$ 7,051
Provision	785	420	1,977	1,145
Charge-offs	(264)	(155)	(1,001)	(635)
Recoveries	49	20	154	44
Balance, end of period	8,451	7,320	7,891	7,051	$ 9,021	$ 7,891	$ 7,605
Ending allowance balance for loans individually evaluated for impairment					246		336
Ending allowance balance for loans acquired with deteriorated credit quality					0		0
Ending allowance balance for loans collectively evaluated for impairment					8,775		7,269
Loans receivable:
Balance of loans individually evaluated for impairment					3,832		3,477
Balance of loans acquired with deteriorated credit quality					6,096		9,597
Balance of loans collectively evaluated for impairment					1,348,484		1,107,044
Total Loans					1,358,412	1,258,779	1,110,521
Mortgage Loans on Real Estate [Member]
Loans receivable:
Total Loans					1,112,565	1,047,074
Mortgage Loans on Real Estate [Member] | Construction and development [Member]
Allowance for loan losses:
Balance, beginning of period	1,018	806	945	579
Provision	7	28	88	241
Charge-offs	(8)	0	(24)	0
Recoveries	2	14	10	28
Balance, end of period	1,018	806	945	579	1,019	945	848
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					1,019		848
Loans receivable:
Balance of loans individually evaluated for impairment					222		186
Balance of loans acquired with deteriorated credit quality					16		55
Balance of loans collectively evaluated for impairment					160,683		122,315
Total Loans					160,921	157,667	122,501
Mortgage Loans on Real Estate [Member] | Farmland [Member]
Allowance for loan losses:
Balance, beginning of period	66	54	60	60
Provision	8	6	14	0
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	66	54	60	60	74	60	60
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					74		60
Loans receivable:
Balance of loans individually evaluated for impairment					0		0
Balance of loans acquired with deteriorated credit quality					2,264		0
Balance of loans collectively evaluated for impairment					18,638		14,130
Total Loans					20,902	23,838	14,130
Mortgage Loans on Real Estate [Member] | 1-4 Family [Member]
Allowance for loan losses:
Balance, beginning of period	1,339	1,276	1,287	1,377
Provision	101	(19)	182	(122)
Charge-offs	(44)	0	(79)	0
Recoveries	14	2	20	4
Balance, end of period	1,339	1,276	1,287	1,377	1,410	1,287	1,259
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					1,410		1,259
Loans receivable:
Balance of loans individually evaluated for impairment					1,911		1,452
Balance of loans acquired with deteriorated credit quality					525		2,814
Balance of loans collectively evaluated for impairment					284,540		250,551
Total Loans					286,976	276,922	252,003
Mortgage Loans on Real Estate [Member] | Multifamily [Member]
Allowance for loan losses:
Balance, beginning of period	319	361	332	355
Provision	14	(21)	1	(15)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	319	361	332	355	333	332	340
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					333		340
Loans receivable:
Balance of loans individually evaluated for impairment					0		0
Balance of loans acquired with deteriorated credit quality					0		1,806
Balance of loans collectively evaluated for impairment					50,770		50,770
Total Loans					50,770	51,283	50,770
Mortgage Loans on Real Estate [Member] | Commercial Real Estate [Member]
Allowance for loan losses:
Balance, beginning of period	3,817	3,036	3,599	2,499
Provision	113	227	331	764
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	3,817	3,036	3,599	2,499	3,930	3,599	3,263
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					3,930		3,263
Loans receivable:
Balance of loans individually evaluated for impairment					711		651
Balance of loans acquired with deteriorated credit quality					2,042		3,033
Balance of loans collectively evaluated for impairment					590,243		461,771
Total Loans					592,996	537,364	462,422
Commercial and industrial [Member]
Allowance for loan losses:
Balance, beginning of period	1,048	683	693	759
Provision	454	135	1,219	252
Charge-offs	(30)	(77)	(481)	(270)
Recoveries	13	0	54	0
Balance, end of period	1,048	683	693	759	1,485	693	741
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					1,485		741
Loans receivable:
Balance of loans individually evaluated for impairment					78		6
Balance of loans acquired with deteriorated credit quality					1,204		1,884
Balance of loans collectively evaluated for impairment					192,281		125,224
Total Loans					193,563	135,392	125,230
Consumer [Member]
Allowance for loan losses:
Balance, beginning of period	844	1,104	975	1,422
Provision	88	64	142	25
Charge-offs	(182)	(78)	(417)	(365)
Recoveries	20	4	70	12
Balance, end of period	$ 844	$ 1,104	$ 975	$ 1,422	770	975	1,094
Ending allowance balance for loans individually evaluated for impairment					246		336
Ending allowance balance for loans acquired with deteriorated credit quality					0		0
Ending allowance balance for loans collectively evaluated for impairment					524		758
Loans receivable:
Balance of loans individually evaluated for impairment					910		1,182
Balance of loans acquired with deteriorated credit quality					45		5
Balance of loans collectively evaluated for impairment					51,329		82,283
Total Loans					$ 52,284	$ 76,313	$ 83,465

LOANS AND ALLOWANCE FOR LOAN_11

LOANS AND ALLOWANCE FOR LOAN LOSSES - Summary of Recorded Investment and Unpaid Principal Balance for Impairment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Financing Receivable Impaired [Line Items]
With no related allowance, recorded investment	$ 3,124		$ 3,124		$ 2,126
With no related allowance, recorded unpaid principal balance	3,194		3,194		2,242
With related allowance, recorded investment	708		708		918
With related allowance, recorded unpaid principal balance	745		745		956
Related allowance	246		246		304
Total loans, recorded investment	3,832		3,832		3,044
Total loans, unpaid principal balance	3,939		3,939		3,198
With no related allowance, average recorded investment	3,027	$ 2,268	3,261	$ 3,004
With no related allowance, recorded interest income recognized	14	28	55	105
With related allowance, average recorded investment	693	933	626	813
With related allowance, recorded interest income recognized	0	0	0	1
Total loans, average recorded investment	3,720	3,201	3,887	3,817
Total loans, interest income recognized	14	28	55	106
Mortgage Loans on Real Estate [Member]
Financing Receivable Impaired [Line Items]
With no related allowance, recorded investment	2,844		2,844		1,958
With no related allowance, recorded unpaid principal balance	2,888		2,888		2,025
Related allowance	0		0		0
Total loans, recorded investment	2,844		2,844		1,958
Total loans, unpaid principal balance	2,888		2,888		2,025
With no related allowance, average recorded investment	2,716	2,050	2,512	2,519
With no related allowance, recorded interest income recognized	14	28	55	104
Total loans, average recorded investment	2,716	2,050	2,512	2,519
Total loans, interest income recognized	14	28	55	104
Mortgage Loans on Real Estate [Member] | Construction and development [Member]
Financing Receivable Impaired [Line Items]
With no related allowance, recorded investment	222		222		182
With no related allowance, recorded unpaid principal balance	240		240		202
Related allowance	0		0		0
Total loans, recorded investment	222		222		182
Total loans, unpaid principal balance	240		240		202
With no related allowance, average recorded investment	266	187	203	389
With no related allowance, recorded interest income recognized	3	2	7	8
Total loans, average recorded investment	266	187	203	389
Total loans, interest income recognized	3	2	7	8
Mortgage Loans on Real Estate [Member] | 1-4 Family [Member]
Financing Receivable Impaired [Line Items]
With no related allowance, recorded investment	1,911		1,911		1,136
With no related allowance, recorded unpaid principal balance	1,921		1,921		1,169
Related allowance	0		0		0
Total loans, recorded investment	1,911		1,911		1,136
Total loans, unpaid principal balance	1,921		1,921		1,169
With no related allowance, average recorded investment	1,739	1,231	1,386	1,517
With no related allowance, recorded interest income recognized	9	18	30	61
Total loans, average recorded investment	1,739	1,231	1,386	1,517
Total loans, interest income recognized	9	18	30	61
Mortgage Loans on Real Estate [Member] | Commercial Real Estate [Member]
Financing Receivable Impaired [Line Items]
With no related allowance, recorded investment	711		711		640
With no related allowance, recorded unpaid principal balance	727		727		654
Related allowance	0		0		0
Total loans, recorded investment	711		711		640
Total loans, unpaid principal balance	727		727		654
With no related allowance, average recorded investment	711	632	923	613
With no related allowance, recorded interest income recognized	2	8	18	35
Total loans, average recorded investment	711	632	923	613
Total loans, interest income recognized	2	8	18	35
Commercial and industrial [Member]
Financing Receivable Impaired [Line Items]
With no related allowance, recorded investment	78		78
With no related allowance, recorded unpaid principal balance	78		78
Related allowance	0		0
Total loans, recorded investment	78		78
Total loans, unpaid principal balance	78		78
With no related allowance, average recorded investment	76	22	345	163
With no related allowance, recorded interest income recognized	0	0	0	0
Total loans, average recorded investment	76	22	345	163
Total loans, interest income recognized	0	0	0	0
Consumer [Member]
Financing Receivable Impaired [Line Items]
With no related allowance, recorded investment	202		202		168
With no related allowance, recorded unpaid principal balance	228		228		217
With related allowance, recorded investment	708		708		918
With related allowance, recorded unpaid principal balance	745		745		956
Related allowance	246		246		304
Total loans, recorded investment	910		910		1,086
Total loans, unpaid principal balance	973		973		$ 1,173
With no related allowance, average recorded investment	235	196	404	322
With no related allowance, recorded interest income recognized	0	0	0	1
With related allowance, average recorded investment	693	933	626	813
With related allowance, recorded interest income recognized	0	0	0	1
Total loans, average recorded investment	928	1,129	1,030	1,135
Total loans, interest income recognized	$ 0	$ 0	$ 0	$ 2

LOANS AND ALLOWANCE FOR LOAN_12

LOANS AND ALLOWANCE FOR LOAN LOSSES - TDR Additional Information (Details) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2018USD ($)SecurityLoancontract	Sep. 30, 2017USD ($)	Dec. 31, 2017USD ($)SecurityLoan
Financing Receivable Modifications [Line Items]
Number of Contracts	23		18
Recorded investment or loans under troubled debt restructurings | $	$ 2,000		$ 1,600
Number of contracts in nonaccrual loans | contract	3
Number of contracts in default	2	0
Troubled Debt Restructuring, Adjustments to Maturity [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts	15
Troubled Debt Restructuring, Reduction in Interest Rate [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts	7
Nonaccrual [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts	1

LOANS AND ALLOWANCE FOR LOAN_13

LOANS AND ALLOWANCE FOR LOAN LOSSES - Summary of TDR Pre- and Post-modification Outstanding Recorded Investments by Loan Categories (Detail) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2018USD ($)SecurityLoancontract	Sep. 30, 2017USD ($)contract	Dec. 31, 2017SecurityLoan
Financing Receivable Modifications [Line Items]
Number of Contracts | SecurityLoan	23		18
Pre- Modification Outstanding Recorded Investment	$ 770	$ 6
Post- Modification Outstanding Recorded Investment	$ 770	$ 6
Mortgage Loans on Real Estate [Member] | Construction and development [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts | contract	2	0
Pre- Modification Outstanding Recorded Investment	$ 358	$ 0
Post- Modification Outstanding Recorded Investment	$ 358	$ 0
Mortgage Loans on Real Estate [Member] | 1-4 Family [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts | contract	7	0
Pre- Modification Outstanding Recorded Investment	$ 400	$ 0
Post- Modification Outstanding Recorded Investment	$ 400	$ 0
Commercial and industrial [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts | contract	2	0
Pre- Modification Outstanding Recorded Investment	$ 12	$ 0
Post- Modification Outstanding Recorded Investment	$ 12	$ 0
Consumer [Member]
Financing Receivable Modifications [Line Items]
Number of Contracts | contract	0	1
Pre- Modification Outstanding Recorded Investment	$ 0	$ 6
Post- Modification Outstanding Recorded Investment	$ 0	$ 6

STOCKHOLDERS' EQUITY - AOCI (De

STOCKHOLDERS' EQUITY - AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance			$ 172,729	$ 112,757
Net Change	$ (1,565)	$ 114	(3,769)	1,276
Ending Balance	178,407	152,876	178,407	152,876
Unrealized (loss) gain, available for sale, net [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(2,594)	824	(71)	(401)
Net Change	(1,542)	95	(4,065)	1,320
Ending Balance	(4,136)	919	(4,136)	919
Reclassification of realized gain, net [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(1,931)	(1,822)	(1,914)	(1,683)
Net Change	(12)	(18)	(29)	(157)
Ending Balance	(1,943)	(1,840)	(1,943)	(1,840)
Unrealized loss, transfer from available for sale to held to maturity, net [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	6	7	7	8
Net Change	0	0	(1)	(1)
Ending Balance	6	7	6	7
Change in fair value of interest rate swap designated as a cash flow hedge, net [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	744	82	407	5
Net Change	(11)	37	326	114
Ending Balance	733	119	733	119
Accumulated other comprehensive (loss) income [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(3,775)	(909)	(1,571)	(2,071)
Net Change	(1,565)	114	(3,769)	1,276
Ending Balance	$ (5,340)	$ (795)	$ (5,340)	$ (795)

STOCK-BASED COMPENSATION - Addi

STOCK-BASED COMPENSATION - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Stock Options [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock option expense	$ 69	$ 57	$ 200	$ 200
Unrecognized compensation cost related to stock options	700		$ 700
Weighted-average period related to stock compensation			2 years 2 months 20 days
Aggregate intrinsic value of stock options outstanding	3,700		$ 3,700
Aggregate intrinsic value of exercisable stock options	1,200		$ 1,200
Time Vested Restricted Stock Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average period related to stock compensation			3 years 4 months 27 days
Share-based compensation expense	200	$ 100	$ 600	$ 400
Unrecognized compensation cost related to time vested restricted stock award	$ 2,300		$ 2,300
Time Vested Restricted Stock Awards [Member] | Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unearned compensation related to awards amortized to compensation expense, vesting period			2 years	2 years
Time Vested Restricted Stock Awards [Member] | Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unearned compensation related to awards amortized to compensation expense, vesting period			5 years	5 years
Incentive Plan [Member]
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		600,000

STOCK-BASED COMPENSATION - Sche

STOCK-BASED COMPENSATION - Schedule of Assumptions Used for Option Awards Granted (Detail)	9 Months Ended
	Sep. 30, 2018$ / shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Expected dividends	0.52%
Expected volatility	24.99%
Risk-free interest rate	2.68%
Expected term (in years)	6 years 6 months
Weighted-average grant date fair value (in dollars per share)	$ 7.16

STOCK-BASED COMPENSATION - Sc_2

STOCK-BASED COMPENSATION - Schedule of Stock Options Activity (Detail) - Stock Options [Member] - $ / shares	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Stock Options, Shares
Outstanding at beginning of period, number of options (in shares)	322,917	319,364
Granted, number of options (in shares)	31,788	36,177
Forfeited, number of options (in shares)	(1,333)	(5,334)
Exercised, number of options (in shares)	(12,415)	(17,791)
Outstanding at end of period, number of options (in shares)	340,957	332,416
Exercisable at end of period, number of options (in shares)	99,917	124,426
Stock Options Weighted Average Price
Outstanding at beginning of period, weighted-average exercise price (in dollars per share)	$ 15.09	$ 14.37
Granted, weighted-average exercise price (in dollars per share)	24.30	20.25
Forfeited, weighted-average exercise price (in dollars per share)	14	14
Exercised, weighted-average exercise price (in dollars per share)	14.07	13.53
Outstanding at end of period, weighted-average exercise price (in dollars per share)	15.99	15.06
Exercisable at end of period, weighted-average exercise price (in dollars per share)	$ 15.17	$ 14.38

STOCK-BASED COMPENSATION - Time

STOCK-BASED COMPENSATION - Time Vested Restricted Stock Award Activity (Detail) - Time Vested Restricted Stock Awards [Member] - $ / shares	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Balance at beginning of period, shares (in shares)	112,688	93,366
Granted, shares (in shares)	60,260	54,724
Forfeited, shares (in shares)	(2,767)	(8,259)
Earned and issued, shares (in shares)	(33,207)	(25,949)
Balance at end of period, shares (in shares)	136,974	113,882
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Balance at beginning of period, weighted avg grant date fair value (in dollars per share)	$ 17.28	$ 14.75
Granted, weighted avg grant date fair value (in dollars per share)	24.35	20.18
Forfeited, weighted avg grant date fair value (in dollars per share)	20.90	16.05
Earned and issued, weighted avg grant date fair value (in dollars per share)	16.80	14.80
Balance at end of period, weighted avg grant date fair value (in dollars per share)	$ 20.44	$ 17.25

DERIVATIVE FINANCIAL INSTRUME_2

DERIVATIVE FINANCIAL INSTRUMENTS - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Derivatives Fair Value [Line Items]
Maximum length of time hedged cash flow hedge period			1 year 11 months
Notional amount of derivative contract	$ 50,000,000		$ 50,000,000
Gain (loss) on derivative instrument	(11,000)	$ 37,000	300,000	$ 100,000
Derivative instrument gain included in accumulated other comprehensive income to be reclassified to earnings			700,000
Interest Rate Swap [Member] | Designated As Hedging Instrument [Member] | Cash Flow Hedging [Member] | Accrued Taxes and Other Liabilities [Member]
Derivatives Fair Value [Line Items]
Fair value of derivative liabilities	$ 900,000		$ 900,000

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) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Assets:
Assets estimated fair value	$ 232,309	$ 218,080
Derivative financial instruments	929	516
Obligations of U. S. government agencies and corporations [Member]
Assets:
Assets estimated fair value	7,868	8,168
Obligations of state and political subdivisions [Member]
Assets:
Assets estimated fair value	33,961	35,237
Corporate bonds [Member]
Assets:
Assets estimated fair value	15,544	16,210
Residential mortgage-backed securities [Member]
Assets:
Assets estimated fair value	116,976	109,478
Commercial mortgage-backed securities [Member]
Assets:
Assets estimated fair value	56,398	47,629
Equity securities [Member]
Assets:
Assets estimated fair value	633	842
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets:
Assets estimated fair value	633	842
Derivative financial instruments	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Obligations of U. S. government agencies and corporations [Member]
Assets:
Assets estimated fair value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Obligations of state and political subdivisions [Member]
Assets:
Assets estimated fair value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Corporate bonds [Member]
Assets:
Assets estimated fair value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Residential mortgage-backed securities [Member]
Assets:
Assets estimated fair value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Commercial mortgage-backed securities [Member]
Assets:
Assets estimated fair value	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Equity securities [Member]
Assets:
Assets estimated fair value	633	842
Significant Other Observable Inputs (Level 2) [Member]
Assets:
Assets estimated fair value	211,530	196,370
Derivative financial instruments	929	516
Significant Other Observable Inputs (Level 2) [Member] | Obligations of U. S. government agencies and corporations [Member]
Assets:
Assets estimated fair value	7,868	8,168
Significant Other Observable Inputs (Level 2) [Member] | Obligations of state and political subdivisions [Member]
Assets:
Assets estimated fair value	15,137	15,694
Significant Other Observable Inputs (Level 2) [Member] | Corporate bonds [Member]
Assets:
Assets estimated fair value	14,222	14,885
Significant Other Observable Inputs (Level 2) [Member] | Residential mortgage-backed securities [Member]
Assets:
Assets estimated fair value	116,976	109,478
Significant Other Observable Inputs (Level 2) [Member] | Commercial mortgage-backed securities [Member]
Assets:
Assets estimated fair value	56,398	47,629
Significant Other Observable Inputs (Level 2) [Member] | Equity securities [Member]
Assets:
Assets estimated fair value	0	0
Significant Unobservable Inputs (Level 3) [Member]
Assets:
Assets estimated fair value	20,146	20,868
Derivative financial instruments	0	0
Significant Unobservable Inputs (Level 3) [Member] | Obligations of U. S. government agencies and corporations [Member]
Assets:
Assets estimated fair value	0	0
Significant Unobservable Inputs (Level 3) [Member] | Obligations of state and political subdivisions [Member]
Assets:
Assets estimated fair value	18,824	19,543
Significant Unobservable Inputs (Level 3) [Member] | Corporate bonds [Member]
Assets:
Assets estimated fair value	1,322	1,325
Significant Unobservable Inputs (Level 3) [Member] | Residential mortgage-backed securities [Member]
Assets:
Assets estimated fair value	0	0
Significant Unobservable Inputs (Level 3) [Member] | Commercial mortgage-backed securities [Member]
Assets:
Assets estimated fair value	0	0
Significant Unobservable Inputs (Level 3) [Member] | Equity securities [Member]
Assets:
Assets estimated fair value	$ 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	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value, beginning balance	$ 20,868	$ 18,280
Realized gains (losses) included in net income	0	0
Unrealized gains (losses) included in other comprehensive income	(722)	1,946
Purchases	0	700
Sales	0	0
Transfers into level 3	0	0
Transfers out of level 3	0	0
Fair value, ending balance	20,146	20,926
Corporate bonds [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value, beginning balance	1,325	624
Realized gains (losses) included in net income	0	0
Unrealized gains (losses) included in other comprehensive income	(3)	4
Purchases	0	700
Sales	0	0
Transfers into level 3	0	0
Transfers out of level 3	0	0
Fair value, ending balance	1,322	1,328
Obligations of state and political subdivisions [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value, beginning balance	19,543	17,656
Realized gains (losses) included in net income	0	0
Unrealized gains (losses) included in other comprehensive income	(719)	1,942
Purchases	0	0
Sales	0	0
Transfers into level 3	0	0
Transfers out of level 3	0	0
Fair value, ending balance	$ 18,824	$ 19,598

FAIR VALUES OF FINANCIAL INST_5

FAIR VALUES OF FINANCIAL INSTRUMENTS - Additional Information (Detail) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
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 [Member] - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impaired loans	$ 373	$ 380
Other real estate owned		$ 3,612
Impaired Loans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Valuation Technique	Discounted cash flows, Underlying collateral value	Discounted cash flows, Underlying collateral value
Unobservable Inputs	Collateral discounts and estimated costs to sell	Collateral discounts and estimated costs to sell
Other Real Estate Owned [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Valuation Technique		Underlying collateral value, Third party appraisals
Unobservable Inputs		Collateral discounts and discount rates
Discount rate		5.00%
Weighted Average [Member] | Impaired Loans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Discount rate	15.00%	32.00%
Weighted Average [Member] | Other Real Estate Owned [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Discount rate		5.00%
Minimum [Member] | Impaired Loans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Discount rate	0.00%	0.00%
Maximum [Member] | Impaired Loans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Discount rate	100.00%	100.00%

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	Sep. 30, 2018	Dec. 31, 2017
Financial assets:
Equity securities	$ 12,671	$ 9,798
Financial liabilities:
Junior subordinated debt	5,832	5,792
Carrying Amount [Member]
Financial assets:
Cash and due from banks	24,503	30,421
Federal funds sold	285
Investment securities	247,777	235,561
Equity securities	12,671	9,798
Loans, net of allowance	1,349,391	1,250,888
Derivative financial instruments	929	516
Financial liabilities:
Deposits, noninterest-bearing	214,190	216,599
Deposits, interest-bearing	1,081,431	1,008,638
FHLB short-term advances and repurchase agreements	222,931	148,535
FHLB long-term advances	3,083	40,058
Junior subordinated debt	5,832	5,792
Subordinated debt	18,600	18,600
Estimated Fair Value [Member]
Financial assets:
Cash and due from banks	24,503	30,421
Federal funds sold	285
Investment securities	247,438	235,511
Equity securities	12,671	9,799
Loans, net of allowance	1,342,314	1,249,844
Derivative financial instruments	929	516
Financial liabilities:
Deposits, noninterest-bearing	214,190	216,599
Deposits, interest-bearing	1,031,041	977,127
FHLB short-term advances and repurchase agreements	222,931	148,535
FHLB long-term advances	2,514	39,927
Junior subordinated debt	6,924	5,576
Subordinated debt	18,355	18,857
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Estimated Fair Value [Member]
Financial assets:
Cash and due from banks	24,503	30,421
Federal funds sold	285
Investment securities	0	842
Equity securities	633	0
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
Significant Other Observable Inputs (Level 2) [Member] | Estimated Fair Value [Member]
Financial assets:
Cash and due from banks	0	0
Federal funds sold	0
Investment securities	215,871	201,946
Equity securities	12,038	9,799
Loans, net of allowance	0	0
Derivative financial instruments	929	516
Financial liabilities:
Deposits, noninterest-bearing	214,190	216,599
Deposits, interest-bearing	0	0
FHLB short-term advances and repurchase agreements	222,931	148,535
FHLB long-term advances	0	0
Junior subordinated debt	0	0
Subordinated debt	18,355	18,857
Significant Unobservable Inputs (Level 3) [Member] | Estimated Fair Value [Member]
Financial assets:
Cash and due from banks	0	0
Federal funds sold	0
Investment securities	31,567	32,723
Equity securities	0	0
Loans, net of allowance	1,342,314	1,249,844
Derivative financial instruments	0	0
Financial liabilities:
Deposits, noninterest-bearing	0	0
Deposits, interest-bearing	1,031,041	977,127
FHLB short-term advances and repurchase agreements	0	0
FHLB long-term advances	2,514	39,927
Junior subordinated debt	6,924	5,576
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		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Tax Disclosure [Abstract]
Income tax expense	$ 516	$ 1,032	$ 2,823	$ 2,756
Effective tax rate	11.30%	32.60%	21.60%	31.80%

INCOME TAXES - Additional Infor

INCOME TAXES - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2018	[1]
Income Tax Disclosure [Abstract]
Discrete tax benefit related to return-to-provision adjustment	$ 300
Additional income tax expense		$ 600	$ 300	$ 557
[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 September 30, 2018 represents a reclassification of the tax effects of the Tax Cuts and Jobs Act.

COMMITMENTS AND CONTINGENCIES -

COMMITMENTS AND CONTINGENCIES - Additional Information (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Unfunded loan commitments	$ 101	$ 32
Unfunded commitments in SBIC qualified funds	$ 100

COMMITMENTS AND CONTINGENCIES_2

COMMITMENTS AND CONTINGENCIES - Summary of Commitments to Extend Credit (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Standby letters of credit [Member]
Loss Contingencies [Line Items]
Commitments to extend credit	$ 11,177	$ 3,832
Loan commitments [Member]
Loss Contingencies [Line Items]
Commitments to extend credit	$ 221,237	$ 174,278

SUBSEQUENT EVENTS (Details)

SUBSEQUENT EVENTS (Details) - Subsequent Event [Member] - Scenario, Forecast [Member] - Mainland Bank [Member]	3 Months Ended
	Mar. 31, 2019shares
Subsequent Event [Line Items]
Shares issued (in shares)	763,849
Shares issued upon conversion (in shares)	3.0389