First Financial (THFF) 10-K 7 Mar 18 2017 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2017	Mar. 01, 2018	Jun. 30, 2017
Document And Entity Information [Abstract]
Entity Registrant Name		FIRST FINANCIAL CORP /IN/
Entity Central Index Key		714,562
Current Fiscal Year End Date		--12-31
Entity Filer Category		Accelerated Filer
Document Type		10-K
Document Period End Date		Dec. 31, 2017
Document Fiscal Year Focus		2,017
Document Fiscal Period Focus		FY
Amendment Flag		false
Entity Common Stock, Shares Outstanding (shares)			12,255,045
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float				$ 515,437,610

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
ASSETS
Cash and due from banks	$ 74,107	$ 75,012
Federal funds sold	0	6,952
Securities available-for-sale	814,931	853,725
Loans, net of allowance of $19,909 in 2017 and $18,773 in 2016	1,886,852	1,820,407
Restricted Stock	10,379	10,359
Accrued interest receivable	12,913	12,311
Premises and equipment, net	48,272	49,240
Bank-owned life insurance	85,016	83,737
Goodwill	34,355	34,355
Other intangible assets	1,630	2,109
Other real estate owned	1,880	2,531
Other assets	30,333	37,789
TOTAL ASSETS	3,000,668	2,988,527
Deposits:
Non-interest-bearing	425,001	564,092
Interest-bearing:
Certificates of deposit that meet or exceed the FDIC insurance limit	43,178	43,759
Interest-bearing Domestic Deposit, Other	1,990,474	1,820,675
Total Deposits	2,458,653	2,428,526
Federal Funds Purchased and Securities Sold under Agreements to Repurchase	57,686	80,989
Other borrowings	0	132
Other liabilities	70,760	64,485
TOTAL LIABILITIES	2,587,099	2,574,132
Shareholders’ equity
Common stock, $1.25 stated value per share, Authorized shares- 40,000,000, Issued shares - 14,595,320 in 2017 and 14,578,758 in 2016, Outstanding shares - 12,246,464 in 2017 and 12,216,712 in 2016	1,822	1,820
Additional paid-in capital	75,624	74,525
Retained earnings	420,275	421,826
Accumulated other comprehensive income (loss)	(14,704)	(14,164)
Less: Treasury shares at cost-2,348,856 in 2017 and 2,362,046 in 2016	(69,448)	(69,612)
TOTAL SHAREHOLDERS’ EQUITY	413,569	414,395
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 3,000,668	$ 2,988,527

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Allowance for loan losses (in dollars)	$ 19,909	$ 18,773
Common stock, stated value per share (usd per share)	$ 0.125	$ 0.125
Common stock, Authorized shares (shares)	40,000,000	40,000,000
Common stock, Issued shares (shares)	14,595,320	14,578,758
Common stock, Outstanding shares (shares)	12,246,464	12,216,712
Treasury stock (shares)	2,348,856	2,362,046

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
INTEREST AND DIVIDEND INCOME:
Loans, including related fees	$ 91,100	$ 86,128	$ 84,022
Securities:
Taxable	14,325	14,506	15,815
Tax-exempt	7,391	7,269	7,194
Other	1,379	1,477	1,645
TOTAL INTEREST AND DIVIDEND INCOME	114,195	109,380	108,676
INTEREST EXPENSE:
Deposits	6,011	4,159	3,934
Short-term borrowings	245	134	70
Other borrowings	82	114	165
TOTAL INTEREST EXPENSE	6,338	4,407	4,169
NET INTEREST INCOME	107,857	104,973	104,507
Provision for loan losses	5,295	3,300	4,700
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	102,562	101,673	99,807
NON-INTEREST INCOME:
Trust and financial services	5,001	5,208	5,586
Service charges and fees on deposit accounts	11,895	10,530	10,145
Other service charges and fees	12,499	12,307	11,798
Securities gain (loss), net	59	34	17
Insurance commissions	74	2,346	6,945
Gain on Sale of certain assets and liabilities of Insurance Brokerage Operation	0	12,822	0
Gain on sale of mortgage loans	1,688	1,842	1,998
Other	4,722	1,842	2,690
TOTAL NON-INTEREST INCOME	35,938	46,931	39,179
Labor and Related Expense	51,322	52,730	60,109
NON-INTEREST EXPENSES:
Occupancy expense	6,897	6,865	6,978
Equipment expense	7,186	7,300	6,991
Federal Deposit Insurance	915	1,300	1,769
Other	22,427	22,113	22,551
TOTAL NON-INTEREST EXPENSE	88,747	90,308	98,398
INCOME BEFORE INCOME TAXES	49,753	58,296	40,588
Provision for income taxes	20,622	19,883	10,392
NET INCOME	29,131	38,413	30,196
OTHER COMPREHENSIVE INCOME
Change in unrealized gains/losses on securities, net of reclassifications and taxes	3,335	(10,130)	(1,225)
Change in funded status of post-retirement benefits, net of taxes	(3,875)	5,367	6,353
COMPREHENSIVE INCOME	$ 28,591	$ 33,650	$ 35,324
EARNINGS PER SHARE:
BASIC AND DILUTED (in dollars per share)	$ 2.38	$ 3.12	$ 2.35
Weighted average number of shares outstanding (in shares)	12,225	12,317	12,836

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Capital	Retained earnings	Accumulated Other Comprehensive Income/(Loss)	Treasury Stock
Balance at Dec. 31, 2014	$ 394,214	$ 1,815	$ 72,405	$ 377,970	$ (14,529)	$ (43,447)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	30,196	0	0	30,196	0	0
Other comprehensive income (loss)	5,128	0	0	0	5,128	0
Treasury Stock, Value, Acquired, Cost Method	(8,698)					(8,698)
Contribution of shares to ESOP	715	2	713	0	0	0
Employee Stock Ownership Plan (ESOP), Cash Contributions to ESOP	1,294	0	278	0	0	1,016
Cash Dividends	(12,533)	0	0	(12,533)	0	0
Balance at Dec. 31, 2015	410,316	1,817	73,396	395,633	(9,401)	(51,129)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	38,413	0	0	38,413	0	0
Other comprehensive income (loss)	(4,763)	0	0	0	(4,763)	0
Treasury Stock, Value, Acquired, Cost Method	(19,396)	0	0	0	0	(19,396)
Contribution of shares to ESOP	684	3	681	0	0	0
Employee Stock Ownership Plan (ESOP), Cash Contributions to ESOP	1,361	0	448	0	0	913
Cash Dividends	(12,220)	0	0	(12,220)	0	0
Balance at Dec. 31, 2016	414,395	1,820	74,525	421,826	(14,164)	(69,612)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	29,131	0	0	29,131	0	0
Other comprehensive income (loss)	(540)	0	0	0	(540)	0
Treasury Stock, Value, Acquired, Cost Method	(503)	0	0	0	0	(503)
Contribution of shares to ESOP	706	2	704	0	0	0
Employee Stock Ownership Plan (ESOP), Cash Contributions to ESOP	1,062	0	395	0	0	667
Cash Dividends	(30,682)	0	0	(30,682)	0	0
Balance at Dec. 31, 2017	$ 413,569	$ 1,822	$ 75,624	$ 420,275	$ (14,704)	$ (69,448)

CONSOLIDATED STATEMENTS OF CHA6

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Stockholders' Equity [Abstract]
Contribution to ESOP shares (shares)	22,714	30,975	36,149
Cash Dividends (in dollars per share)	$ 2.51	$ 1	$ 0.98

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 29,131	$ 38,413	$ 30,196
Adjustments to reconcile net income to net cash provided by operating activities:
Net (accretion) amortization on securities	3,786	3,695	2,940
Provision for loan losses	5,295	3,300	4,700
Securities (gains) losses	(59)	(34)	(17)
Depreciation and amortization	4,426	4,968	5,490
Provision for deferred income taxes	(4,241)	(1,512)	(924)
Net change in accrued interest receivable	(602)	(578)	(140)
Contribution of shares to ESOP	1,062	1,361	1,294
Gain on Sale of certain assets and liabilities of Insurance Brokerage Operation	0	(12,822)	0
Stock compensation expense	706	684	684
Gain on sale of mortgage loans	(1,688)	(1,842)	(1,998)
Loss (gain) on sales of other real estate	108	93	116
Origination of loans held for sale	(62,712)	(68,945)	(72,303)
Proceeds from loans held for sale	66,265	71,010	75,542
Other, net	8,658	3,401	(4,325)
NET CASH FROM OPERATING ACTIVITIES	50,135	41,192	41,255
CASH FLOWS FROM INVESTING ACTIVITIES:
Sales of securities available-for-sale	9,743	0	3,735
Calls, maturities and principal reductions on securities available-for-sale	141,819	168,506	150,315
Purchases of securities available-for-sale	(111,138)	(150,893)	(149,181)
Loans made to customers, net of payments	(72,463)	(80,434)	12,901
Net change in federal funds sold	6,952	2,863	(1,815)
Redemption of restricted stock	0	500	5,587
Purchase of restricted stock	(20)	(21)	(21)
Payments to Acquire Intangible Assets	0	0	103
Proceeds from sale	0	16,895	0
Sale of other real estate	1,419	1,583	1,638
Additions to premises and equipment	(2,979)	(3,049)	(3,393)
NET CASH FROM INVESTING ACTIVITIES	(26,667)	(44,050)	19,663
CASH FLOWS FROM FINANCING ACTIVITIES:
Net change in deposits	30,121	(13,906)	(14,899)
Proceeds from (Payments for) in Securities Sold under Agreements to Repurchase	(23,303)	47,158	(14,184)
Dividends paid	(30,556)	(12,359)	(12,632)
Purchases of treasury stock	(503)	(19,396)	(8,698)
Proceeds from Federal Home Loan Bank Borrowings	170,000	54,350	36,900
Repayments of Federal Home Loan Bank Borrowings	170,132	66,672	36,812
NET CASH FROM FINANCING ACTIVITIES	(24,373)	(10,825)	(50,325)
NET CHANGE IN CASH AND CASH EQUIVALENTS	(905)	(13,683)	10,593
CASH AND DUE FROM BANKS, BEGINNING OF YEAR	75,012	88,695	78,102
CASH AND DUE FROM BANKS, END OF YEAR	74,107	75,012	88,695
SUPPLEMENTAL DISCLOSURES OF CASH FLOW AND NONCASH INFORMATION:
Interest	6,337	4,432	4,237
Income Taxes	$ 11,158	$ 18,739	$ 12,869

BUSINESS AND SIGNIFICANT ACCOUN

BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES:	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES	BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES: BUSINESS Organization: The consolidated financial statements of First Financial Corporation and its subsidiaries (the Corporation) include the parent company and its wholly-owned subsidiaries, First Financial Bank, N.A. headquartered in Vigo County, Indiana, The Morris Plan Company of Terre Haute (Morris Plan), First Chanticleer Corporation, a property rental entity headquartered in Terre Haute, Indiana, and FFB Risk Management Co., Inc., a captive insurance subsidiary headquartered in Las Vegas, Nevada. Inter-company transactions and balances have been eliminated. First Financial Bank also has two investment subsidiaries, Portfolio Management Specialists A (Specialists A) and Portfolio Management Specialists B (Specialists B), which were established to hold and manage certain assets as part of a strategy to better manage various income streams and provide opportunities for capital creation as needed. Specialists A and Specialists B subsequently entered into a limited partnership agreement, Global Portfolio Limited Partners. Portfolio Management Specialists B also owns First Financial Real Estate, LLC. At December 31, 2017 , $743.3 million of securities and loans were owned by these subsidiaries. Specialists A, Specialists B, Global Portfolio Limited Partners and First Financial Real Estate LLC are included in the consolidated financial statements. The Corporation, which is headquartered in Terre Haute, Indiana, offers a wide variety of financial services including commercial, mortgage and consumer lending, lease financing, trust account services and depositor services through its four subsidiaries. The Corporation's primary source of revenue is derived from loans to customers and investment activities. The Corporation operates 66 branches in west-central Indiana and east-central Illinois. First Financial Bank is the largest bank in Vigo County. It operates 11 full-service banking branches within the county; one in Daviess County, Indiana.; three in Clay County, Indiana; one in Gibson County, Indiana.; one in Greene County, Indiana; two in Knox County, Indiana; four in Parke County, Indiana; one in Putnam County, Indiana; four in Sullivan County, Indiana; one in Vanderburgh County, Indiana,; four in Vermillion County, Indiana; four in Champaign County, Illinois; one in Clark County, Illinois; three in Coles County, Illinois; two in Crawford County, Illinois; two in Franklin County, Illinois; one in Jasper County, Illinois; two in Jefferson County, Illinois; one in Lawrence County, Illinois; two in Livingston County, Illinois; two in Marion County, Illinois; three in McLean County, Illinois; two in Richland County, Illinois; six in Vermilion County, Illinois; and one in Wayne County, Illinois. It also has a main office in downtown Terre Haute and an operations center/office building in southern Terre Haute. Regulatory Agencies: First Financial Corporation is a multi-bank holding company and as such is regulated by various banking agencies. The holding company is regulated by the Seventh District of the Federal Reserve System. The national bank subsidiary is regulated by the Office of the Comptroller of the Currency. The state bank subsidiary is jointly regulated by the state banking organization and the Federal Deposit Insurance Corporation. FFB Risk Management Company is regulated by the State of Nevada Division of Insurance. SIGNIFICANT ACCOUNTING POLICIES Use of Estimates: To prepare financial statements in conformity with U.S. generally accepted accounting principles, management makes estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in the financial statements and disclosures provided, and actual results could differ. Cash Flows : Cash and cash equivalents include cash and demand deposits with other financial institutions. Net cash flows are reported for customer loan and deposit transactions and short-term borrowings. Non-cash transactions include loans transferred to other real estate of $0.9 million , $0.7 million and $1.3 million for the years ended December 31, 2017 , 2016 and 2015 respectively. Securities : The Corporation classifies all securities as "available for sale." Securities are classified as available for sale when they might be sold before maturity. Securities available for sale are carried at fair value with unrealized holdings gains and losses, net of taxes, reported in other comprehensive income within shareholders' equity. Interest income includes amortization of purchase premium or discount. Premiums and discounts are amortized on the level yield method without anticipating prepayments. Mortgage-backed securities are amortized over the expected life. Realized gains and losses on sales are based on the amortized cost of the security sold. Management evaluates securities for other-than temporary impairment (OTTI) at least on a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation. Loans: Loans that management has the intent and ability to hold for the foreseeable future until maturity or pay-off are reported at the principal balance outstanding, net of unearned interest, purchase premiums and discounts, deferred loan fees and costs, and allowance for loan losses. Loans held for sale are reported at the lower of cost or fair value, on an aggregate basis. Interest income is accrued on the unpaid principal balance and includes amortization of net deferred loan fees and costs over the loan term without anticipating prepayments. The recorded investment in loans includes accrued interest receivable and net deferred loan fees and costs. Interest income is not reported when full loan repayment is in doubt, typically when the loan is impaired or payments are significantly past due. Past-due status is based on the contractual terms of the loan. All interest accrued but not received for loans placed on non-accrual is reversed against interest income. Interest received on such loans is accounted for on the cash-basis or cost-recovery method, until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. In all cases, loans are placed on non-accrual or charged-off if collection of principal or interest is considered doubtful. The above policies are consistent for all segments of loans. Certain Purchased Loans: The Corporation purchases individual loans and groups of loans, some of which have shown evidence of credit deterioration since origination. These purchased loans are recorded at the amount paid, such that there is no carryover of the seller's allowance for loan losses. After acquisition, losses are recognized by an increase in the allowance for loan losses. Such purchased loans are accounted for individually. The Corporation estimates the amount and timing of expected cash flows for each purchased loan, and the expected cash flows in excess of amount paid are recorded as interest income over the remaining life of the loan (accretable yield). The excess of the loan's contractual principal and interest over expected cash flows is not recorded (nonaccretable difference). Over the life of the loan, expected cash flows continue to be estimated. If the present value of expected cash flows is less than the carrying amount, a provision for loan loss is recorded. If the present value of expected cash flows is greater than the carrying amount, it is recognized as part of future interest income. Concentration of Credit Risk: Most of the Corporation's business activity is with customers located within west central Indiana and east central Illinois. Therefore, the Corporation's exposure to credit risk is significantly affected by changes in the economy of this area. A major economic downturn in this area would have a negative effect on the Corporation's loan portfolio. The risk characteristics of each loan portfolio segment are as follows: Commercial Commercial loans are predominately loans to expand a business or finance asset purchases. The underlying risk in the Commercial loan segment is primarily a function of the reliability and sustainability of the cash flows of the borrower and secondarily on the underlying collateral securing the transaction. From time to time, the cash flows of borrowers may be less than historical or as planned. In addition, the underlying collateral securing these loans may fluctuate in value. Most commercial loans are secured by the assets financed or other business assets and most commercial loans are further supported by a personal guarantee. However, in some instances, short term loans are made on an unsecured basis. Agriculture production loans are typically secured by growing crops and generally secured by other assets such as farm equipment. Production loans are subject to weather and market pricing risks. The Corporation has established underwriting standards and guidelines for all commercial loan types. The Corporation strives to maintain a geographically diverse commercial real estate portfolio. Commercial real estate loans are primarily underwritten based upon the cash flows of the underlying real estate or from the cash flows of the business conducted at the real estate. Generally, these types of loans will be fully guaranteed by the principal owners of the real estate and loan amounts must be supported by adequate collateral value. Commercial real estate loans may be adversely affected by factors in the local market, the regional economy, or industry specific factors. In addition, Commercial Construction loans are a specific type of commercial real estate loan which inherently carry more risk than loans for completed projects. Since these types of loans are underwritten utilizing estimated costs, feasibility studies, and estimated absorption rates, the underlying value of the project may change based upon the inaccuracy of these projections. Commercial construction loans are closely monitored, subject to industry standards, and disbursements are controlled during the construction process. Residential Retail real estate mortgages that are secured by 1-4 family residences are generally owner occupied and include residential real estate and residential real estate construction loans. The Corporation typically establishes a maximum loan-to-value ratio and generally requires private mortgage insurance if the ratio is exceeded. The Corporation sells substantially all of its long-term fixed mortgages to secondary market purchasers. Mortgages sold to secondary market purchasers are underwritten to specific guidelines. The Corporation originates some mortgages that are maintained in the bank’s loan portfolio. Portfolio loans are generally adjustable rate mortgages and are underwritten to conform to Qualified Mortgage standards. Several factors are considered in underwriting all Mortgages including the value of the underlying real estate, debt-to-income ratio and credit history of the borrower. Repayment is primarily dependent upon the personal income of the borrower and can be impacted by changes in borrower’s circumstances such as changes in employment status and changes in real estate property values. Risk is mitigated by the sale of substantially all long-term fixed rate mortgages, the underwriting of portfolio loans to Qualified Mortgage standards and the fact that mortgages are generally smaller individual amounts spread over a large number of borrowers. Consumer The consumer portfolio primarily consists of home equity loans and lines (typically secured by a subordinate lien on a 1-4 family residence), secured loans (typically secured by automobiles, boats, recreational vehicles, or motorcycles), cash/CD secured, and unsecured loans. Pricing, loan terms, and loan to value guidelines vary by product line. The underlying value of collateral dependent loans may vary based on a number of economic conditions, including fluctuations in home prices and unemployment levels. Underwriting of consumer loans is based on the individual credit profile and analysis of the debt repayment capacity for each borrower. Payments for consumer loans is typically set-up on equal monthly installments, however, future repayment may be impacted by a change in economic conditions or a change in the personal income levels of individual customers. Overall risks within the consumer portfolio are mitigated by the mix of various loan products, lending in various markets and the overall make-up of the portfolio (small loan sizes and a large number of individual borrowers). Allowance for Loan Losses: The allowance for loan losses is a valuation allowance for probable incurred credit losses. Loan losses are charged against the allowance when management believes the uncollectibility of a loan balance is confirmed. Subsequent recoveries, if any, are credited to the allowance. Management estimates the allowance balance required using past loan loss experience, the nature and volume of the portfolio, information about specific borrower situations and estimated collateral values, economic conditions and other factors. Allocations of the allowance may be made for specific loans, but the entire allowance is available for any loan that, in management's judgment, should be charged off. The allowance consists of specific and general components. The specific component relates to loans that are individually classified as impaired. The general component covers non-classified loans as well as non-impaired classified loans and is based on historical loss experience adjusted for current factors. A loan is impaired when full payment under the loan terms is not expected. Loans for which the terms have been modified, and for which the borrower is experiencing financial difficulties, are considered troubled debt restructurings and classified as impaired. Impairment is evaluated in total for smaller-balance loans of similar nature such as residential mortgages and consumer loans, and on an individual basis for other loans. If a loan is impaired, a portion of the allowance is allocated so that the loan is reported, net, at the present value of estimated future cash flows, using the loan's existing rate, or at the fair value of collateral if repayment is expected solely from the collateral. Large groups of smaller balance homogeneous loans, such as consumer and residential real estate loans, are collectively evaluated for impairment and, accordingly, they are not separately identified for impairment disclosures. The general component covers non-classified loans as well as non-impaired classified loans and is based on historical loss experience adjusted for current factors. The historical loss experience is based on the actual loss history experienced over the most recent four years. This actual loss experience is supplemented with other current factors based on the risks present for each portfolio segment. These current factors include consideration of the following: levels of and trends in delinquent, classified, and impaired loans; levels of and trends in charge-offs and recoveries; national and local economic trends and conditions; changes in lending policies and procedures; trends in volume and terms of loans; experience, ability, and depth of lending management and other relevant staff; credit concentrations; value of underlying collateral for collateral dependent loans; and other external factors such as competition and legal and regulatory requirements. The following portfolio segments have been identified: commercial loans, residential loans and consumer loans. A characteristic of the commercial loan segment is that the loans are for business purchases. A characteristic of the residential loan segment is that the loans are secured by residential properties. A characteristic of the consumer loan segment is that the loans are for automobiles and other consumer purchases. Commercial loans are generally well secured, which mitigates the risk of loss and has contributed to the low historical loss rate. However, concentrations in commercial real estate, along with the potential impact of rising interest rates to commercial real estate, raises the risk of loss on commercial loans. For these reasons, commercial loans have the highest adjustment to the historical loss rate. Continued weakness in local economic conditions along with declining auto values resulted in consumer loans having the next highest level of adjustment to the historical loss rate. The residential loan portfolio segment had the lowest level of adjustment to the historical loss rate. Troubled debt restructurings are separately identified for impairment disclosures and are measured at the present value of estimated future cash flows using the loan's effective rate at inception. If a troubled debt restructuring is considered to be a collateral dependent loan, the loan is reported, net, at the fair value of the collateral. For troubled debt restructurings that subsequently default, the Corporation determines the amount of reserve in accordance with the accounting policy for the allowance for loan losses. FDIC Indemnification Asset: The FDIC indemnification asset results from the loss share agreements in the 2009 FDIC-assisted transaction. The asset is measured separately from the related covered assets as they are not contractually embedded in the assets and are not transferable with the assets should the Corporation choose to dispose of them. It represents the acquisition date fair value of expected reimbursements from the FDIC which was determined to be $12.1 million . Pursuant to the terms of the loss sharing agreement, covered loans and other real estate are subject to a stated loss threshold whereby the FDIC will reimburse the Corporation for up to 95% of losses incurred. These expected reimbursements do not include reimbursable amounts related to future covered expenditures. These cash flows are discounted to reflect a metric of uncertainty of the timing and receipt of the loss sharing reimbursement from the FDIC. This asset decreases when losses are realized and claims are paid by the FDIC or when customers repay their loans in full and expected losses do not occur. This asset also increases when estimated future losses increase. When estimated future losses increase, the Corporation records a provision for loan losses and increases its allowance for loan losses accordingly. The related increase or decrease in the FDIC indemnification asset is recorded as an (increase) or offset to the provision for loan losses. There were not any changes to the provision for loan losses related to the FDIC indemnification asset in 2017 , 2016 , and 2015 . At December 31, 2017 , 2016 , and 2015 , the balance of the indemnification asset was not material and is included in other assets. Foreclosed Assets: Assets acquired through or instead of loan foreclosures are initially recorded at fair value less estimated selling costs when acquired, establishing a new cost basis. Physical possession of residential real estate property collateralizing a consumer mortgage loan occurs when legal title is obtained upon completion of foreclosure or when the borrower conveys all interest in the property to satisfy the loan through completion of a deed in lieu of foreclosure or similar legal agreement. These assets are subsequently accounted for at lower of cost or fair value less estimated costs to sell. If fair value declines, a valuation allowance is recorded through expense. Costs after acquisition are expensed. Premises and Equipment: Land is carried at cost. Premises and equipment are stated at cost less accumulated depreciation. Depreciation is computed over the useful lives of the assets, which range from 3 to 5 years for furniture and equipment and 33 to 39 years for buildings and leasehold improvements. Restricted Stock: Restricted stock includes Federal Home Loan Bank (FHLB) of Indianapolis and Federal Reserve stock. This restricted stock is carried at cost and periodically evaluated for impairment. Because this stock is viewed as a long-term investment, impairment is based on ultimate recovery of par value. Both cash and stock dividends are reported as income. Servicing Rights: Servicing rights are recognized separately when they are acquired through sales of loans. When mortgage loans are sold, servicing rights are initially recorded at fair value with the income statement effect recorded in gains on sales of loans. Fair value is based on market prices for comparable mortgage servicing contracts, when available, or alternatively, is based on third-party valuations that incorporate assumptions that market participants would use in estimating future net servicing income, such as the cost to service, the discount rate, ancillary income, prepayment speeds and default rates and losses. All classes of servicing assets are subsequently measured using the amortization method, which requires servicing rights to be amortized into non-interest income in proportion to, and over the period of, the estimated future net servicing income of the underlying loans. Servicing assets are evaluated for impairment based upon the fair value of the rights as compared to carrying amount. Impairment is determined by stratifying rights into groupings based on predominant risk characteristics, such as interest rate, loan type and investor type. Impairment is recognized through a valuation allowance for an individual grouping, to the extent that fair value is less than the carrying amount. If the Corporation later determines that all or a portion of the impairment no longer exists for a particular grouping, a reduction of the allowance may be recorded as an increase to income. Changes in valuation allowances are reported with Other Service Charges and Fees on the income statement. The fair values of servicing rights are subject to significant fluctuations as a result of changes in estimated and actual prepayment speeds and default rates and losses. Servicing fee income, which is included in Other Service Charges and Fees on the income statement, is for fees earned for servicing loans. The fees are based on a contractual percentage of the outstanding principal or a fixed amount per loan and are recorded as income when earned. The amortization of mortgage servicing rights is netted against loan servicing fee income. Servicing fees totaled $1.3 million , $1.3 million and $1.3 million for the years ended December 31, 2017 , 2016 and 2015 . Late fees and ancillary fees related to loan servicing are not material. Stock based compensation: Compensation cost is recognized for restricted stock awards and units issued to employees based on the fair value of these awards at the date of grant. Market price of the Corporation’s common stock at the date of grant is used for restricted stock awards. Compensation expense is recognized over the requisite service period. Transfers of Financial Assets: Transfers of financial assets are accounted for as sales, when control over the assets has been relinquished. Control over transferred assets is deemed to be surrendered when the assets have been isolated from the Corporation, the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets, and the Corporation does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity. Bank-Owned Life Insurance: The Corporation has purchased life insurance policies on certain key executives. Bank-owned life insurance is recorded at its cash surrender value, or the amount that can be realized. Income on the investments in life insurance is included in other interest income. Goodwill and Other Intangible Assets: Goodwill resulting from business combinations prior to January 1, 2009 represents the excess of the purchase price over the fair value of the net assets of businesses acquired. Goodwill resulting from business combinations after January 1, 2009 represents the future economic benefits arising from other assets acquired that are not individually identified and separately recognized. Goodwill and intangible assets acquired in a purchase business combination and determined to have an indefinite useful life are not amortized, but tested for impairment at least annually. The Corporation has selected December 31 as the date to perform the annual impairment test. Intangible assets with definite useful lives are amortized over their estimated useful lives to their estimated residual values. Goodwill is the only intangible asset with an indefinite life on our balance sheet. Other intangible assets consist of core deposit assets arising from the whole bank and branch acquisitions. They are initially measured at fair value and then are amortized on an accelerated basis over their estimated useful lives, which are 10 and 12 years, respectively. Long-Term Assets: Premises and equipment and other long-term assets are reviewed for impairment when events indicate their carrying amount may not be recoverable from future undiscounted cash flows. If impaired, the assets are recorded at fair value. Benefit Plans: Pension expense is the net of service and interest cost, return on plan assets and amortization of gains and losses not immediately recognized. The amount contributed is determined by a formula as decided by the Board of Directors. Deferred compensation and supplemental retirement plan expense allocates the benefits over years of service. Employee Stock Ownership Plan: Shares of treasury stock are issued to the ESOP and compensation expense is recognized based upon the total market price of shares when contributed. Deferred Compensation Plan: Prior to 2011, a deferred compensation plan covered all directors. Under the plan, the Corporation pays each director, or their beneficiary, the amount of fees deferred plus interest over 10 years, beginning when the director achieves age 65 . A liability is accrued for the obligation under these plans. The expense incurred for the deferred compensation for each of the last three years was $95 thousand , $114 thousand and $142 thousand , resulting in a deferred compensation liability of $2.0 million at December 31, 2017 and $2.1 million at December 31, 2016 . There are no deferred compensation plans now in effect for directors. Incentive Plans: A long-term incentive plan established in 2000 provides for the payment of incentive rewards as a 15 -year annuity to all directors and certain key officers. That plan was in place through December 31, 2009, and compensation expense is recognized over the service period. Payments under the plan generally did not begin until the earlier of January 1, 2015, or the January 1 immediately following the year in which the participant reaches age 65 . There was no compensation expense related to this plan for 2017 , 2016 and 2015 . There is a liability of $11.4 million and $12.3 million as of year-end 2017 and 2016 . In 2011 the Corporation adopted the 2011 Short-term Incentive Plan and the 2011 Omnibus Equity Incentive Plan designed to reward key officers based on certain performance measures. The short-term portion of the plan is paid out within 75 days of year end and the long-term plan vests over a three year period and is paid out within 75 days of the end of each vesting period. The compensation expense related to the plans in 2017 , 2016 and 2015 was $1.6 million , $1.5 million and $1.4 million , respectively, and resulted in a liability of $836 thousand at December 31, 2017 and $823 thousand at December 31, 2016 . The Omnibus Equity Incentive Plan is a long term incentive plan that was designed to align the interests of participants with the interest of shareholders. Under the plan, awards may be made based on certain performance measures. The grants are made in restricted stock units that are subject to a vesting schedule. Income Taxes: Income tax expense is the total of the current year income tax due or refundable and the change in deferred tax assets and liabilities. Deferred tax assets and liabilities are the expected future tax amounts for the temporary differences between carrying amounts and tax bases of assets and liabilities, computed using enacted tax rates. A valuation allowance, if needed, reduces deferred tax assets to the amount expected to be realized. A tax position is recognized as a benefit only if it is "more likely than not" that the tax position would be sustained in a tax examination, with a tax examination being presumed to occur. The amount recognized is the largest amount of tax benefit that is greater than 50% likely of being realized on examination. For tax positions not meeting the "more likely than not" test, no tax benefit is recorded. The Corporation recognizes interest and/or penalties related to income tax matters in income tax expense. Loan Commitments and Related Financial Instruments: Financial instruments include credit instruments, such as commitments to make loans and standby letters of credit, issued to meet customer financing needs. The face amount for these items represents the exposure to loss, before considering customer collateral or ability to repay. Such financial instruments are recorded when they are funded. Earnings Per Share: Earnings per common share is net income divided by the weighted average number of common shares outstanding during the period. The Corporation does not have any potentially dilutive securities as the restricted stock awards are included in outstanding shares.. Earnings and dividends per share are restated for stock splits and dividends through the date of issue of the financial statements. Comprehensive Income: Comprehensive income consists of net income and other comprehensive income. Other comprehensive income includes unrealized gains and losses on securities available for sale and changes in the funded status of the retirement plans, net of taxes, which are also recognized as separate components of equity. Loss Contingencies: Loss contingencies, including claims and legal actions arising in the ordinary course of business, are recorded as liabilities when the likelihood of loss is probable and an amount of range of loss can be reasonably estimated. Management does not believe there are currently such matters that will have a material effect on the financial statements. Dividend Restriction: Banking regulations require maintaining certain capital levels and may limit the dividends paid by the bank to the holding company or by the holding company to shareholders. Fair Value of Financial Instruments: Fair values of financial instruments are estimated using relevant market information and other assumptions, as more fully disclosed in a separate note. Fair value estimates involve uncertainties and matters of significant judgment regarding interest rates, credit risk, prepayments and other factors, especially in the absence of broad markets for particular items. Changes in assumptions or market conditions could significantly affect the estimates. Operating Segment: While the Corporation's chief decision-makers monitor the revenue streams of the various products and services, the operating results of significant segments are similar and operations are managed and financial performance is evaluated on a corporate-wide basis. Accordingly, all of the Corporation's financial service operations are considered by management to be aggregated in one reportable operating segment, which is banking. Accounting Pronouncements Adopted: ASU No. 2016-09, "Improvements to Employee Share-Based Payment Accounting” includes provisions intended to simplify various aspects related to how share-based payments are accounted for and presented in the financial statements. Some of the key provisions of this new ASU include: (1) companies will no longer record excess tax benefits and certain tax deficiencies in additional paid-in capital (“APIC”). Instead, they will record all excess tax benefits and tax deficiencies as income tax expense or benefit in the income statement, and APIC pools will be eliminated. The guidance also eliminates the requirement that excess tax benefits be realized before companies can recognize them. In addition, the guidance requires companies to present excess tax benefits as an operating activity on the statement of cash flows rather than as a financing activity; (2) increase the amount an employer can withhold to cover income taxes on awards and still qualify for the exc

FAIR VALUES OF FINANCIAL INSTRU

FAIR VALUES OF FINANCIAL INSTRUMENTS:	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
FAIR VALUES OF FINANCIAL INSTRUMENTS	FAIR VALUES OF FINANCIAL INSTRUMENTS: Accounting guidance establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The standard describes three levels of inputs that may be used to measure fair value: Level 1: Quoted prices (unadjusted) of identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date. Level 2: Significant other observable inputs other than Level 1 prices such as such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. Level 3: Significant unobservable inputs that reflect a reporting entity's own assumptions about the assumptions that market participants would use in pricing an asset or liability. The fair value of securities available-for-sale is determined by obtaining quoted prices on nationally recognized securities exchanges (Level 1 inputs) or matrix pricing, which is a mathematical technique widely used in the industry to value debt securities without relying exclusively on quoted prices for the specific securities but rather by relying on the securities' relationship to other benchmark quoted securities (Level 2 inputs). For those securities that cannot be priced using quoted market prices or observable inputs, a Level 3 valuation is determined. These securities are primarily trust preferred securities, which are priced using Level 3 due to current market illiquidity, and state and municipal securities. The fair value of the trust preferred securities is obtained from a third party provider without adjustment. Management obtains values from other pricing sources to validate the Standard & Poors pricing that they currently utilizes. The fair value of state and municipal obligations are derived by comparing the securities to current market rates plus an appropriate credit spread to determine an estimated value. Illiquidity spreads are then considered. Credit reviews are performed on each of the issuers. The significant unobservable inputs used in the fair value measurement of the Corporation’s state and municipal obligations are credit spreads related to specific issuers. Significantly higher credit spread assumptions would result in significantly lower fair value measurement. Conversely, significantly lower credit spreads would result in a significantly higher fair value measurement. The fair value of derivatives is based on valuation models using observable market data as of the measurement date (Level 2 inputs). December 31, 2017 Fair Value Measurement Using (Dollar amounts in thousands) Level 1 Level 2 Level 3 Carrying Value U.S. Government entity mortgage-backed securities $ — $ 13,695 $ — $ 13,695 Mortgage-backed securities, residential — 215,338 — 215,338 Mortgage-backed securities, commercial — 1 — 1 Collateralized mortgage obligations — 339,670 — 339,670 State and municipal obligations — 227,942 3,680 231,622 Collateralized debt obligations — — 14,605 14,605 TOTAL $ — $ 796,646 $ 18,285 $ 814,931 Derivative Assets $ 298 Derivative Liabilities (298 ) December 31, 2016 Fair Value Measurement Using (Dollar amounts in thousands) Level 1 Level 2 Level 3 Carrying Value U.S. Government entity mortgage-backed securities $ — $ 13,249 $ — $ 13,249 Mortgage-backed securities, residential — 261,005 — 261,005 Mortgage-backed securities, commercial — 4 — 4 Collateralized mortgage obligations — 348,176 — 348,176 State and municipal obligations — 214,713 4,210 218,923 Collateralized debt obligations — — 12,368 12,368 TOTAL $ — $ 837,147 $ 16,578 $ 853,725 Derivative Assets $ 653 Derivative Liabilities (653 ) There were no transfers between Level 1 and Level 2 during 2017 and 2016 . The table below presents a reconciliation and income statement classification of gains and losses for all assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the twelve months ended December 31, 2017 and 2016 . Fair Value Measurements Using Significant Unobservable Inputs (Level 3) December 31, 2017 State and municipal obligations Collateralized debt obligations Total Beginning balance, January 1 $ 4,210 $ 12,368 $ 16,578 Total realized/unrealized gains or losses Included in earnings — — — Included in other comprehensive income — 2,773 2,773 Purchases — — — Settlements (530 ) (536 ) (1,066 ) Ending balance, December 31 $ 3,680 $ 14,605 $ 18,285 Fair Value Measurements Using Significant Unobservable Inputs (Level 3) December 31, 2016 State and municipal obligations Collateralized debt obligations Total Beginning balance, January 1 $ 4,725 $ 14,875 $ 19,600 Total realized/unrealized gains or losses Included in earnings — — — Included in other comprehensive income — (2,066 ) (2,066 ) Transfers — — — Settlements (515 ) (441 ) (956 ) Ending balance, December 31 $ 4,210 $ 12,368 $ 16,578 There were no unrealized gains and losses recorded in earnings for the years ended December 31, 2017 , 2016 or 2015 . Impaired loans disclosed in footnote 7, which are measured for impairment using the fair value of collateral, are valued at Level 3. They are carried at a fair value of $3.9 million , after a valuation allowance of $0.6 million at December 31, 2017 and at a fair value of $1.4 million , net of a valuation allowance of $0.3 million at December 31, 2016 . The impact to the provision for loan losses for the twelve months ended December 31, 2017 and December 31, 2016 was a $294 thousand increase and a $523 thousand decrease, respectively. Other real estate owned is valued at Level 3. Other real estate owned at December 31, 2017 with a value of $1.9 million was reduced $951 thousand for fair value adjustment. At December 31, 2017 other real estate owned was comprised of $1.7 million from commercial loans and $212 thousand from residential loans. Other real estate owned at December 31, 2016 with a value of $2.5 million was reduced $930 thousand for fair value adjustment. At December 31, 2016 other real estate owned was comprised of $2.0 million from commercial loans and $483 thousand from residential loans. Fair value is measured based on the value of the collateral securing those loans, and is determined using several methods. Generally the fair value of real estate is determined based on appraisals by qualified licensed appraisers. Appraisals for real estate generally use three methods to derive value: cost, sales or market comparison and income approach. The cost method bases value on the cost to replace current property. The market comparison evaluates the sales price of similar properties in the same market area. The income approach considers net operating income generated by the property and the investor’s required return. The final fair value is based on a reconciliation of these three approaches. If an appraisal is not available, the fair value may be determined by using a cash flow analysis, a broker’s opinion of value, the net present value of future cash flows, or an observable market price from an active market. Fair value of other real estate is based upon the current appraised values of the properties as determined by qualified licensed appraisers and the Company’s judgment of other relevant market conditions. Appraisals are obtained annually and reductions in value are recorded as a valuation through a charge to expense. The primary unobservable input used by management in estimating fair value are additional discounts to the appraised value to consider market conditions and the age of the appraisal, which are based on management’s past experience in resolving these types of properties. These discounts range from 0% to 50% . Values for non-real estate collateral, such as business equipment, are based on appraisals performed by qualified licensed appraisers or the customers financial statements. Values for non real estate collateral use much higher discounts than real estate collateral. Other real estate and impaired loans carried at fair value are primarily comprised of smaller balance properties. The following tables present quantitative information about recurring and non-recurring Level 3 fair value measurements at December 31, 2017 and 2016 . 2017 Fair Value Valuation Technique(s) Unobservable Input(s) Range State and municipal obligations $ 3,680 Discounted cash flow Discount rate 2.30%-5.45% Probability of default — % Other real estate $ 1,880 Sales comparison/income approach Discount rate for age of appraisal and market conditions 5.00%-20.00% Impaired Loans $ 3,882 Sales comparison/income approach Discount rate for age of appraisal and market conditions 0.00%-50.00% 2016 Fair Value Valuation Technique(s) Unobservable Input(s) Range State and municipal obligations $ 4,210 Discounted cash flow Discount rate 3.05%-5.50% Probability of default — % Other real estate $ 2,531 Sales comparison/income approach Discount rate for age of appraisal and market conditions 5.00%-20.00% Impaired Loans $ 1,387 Sales comparison/income approach Discount rate for age of appraisal and market conditions 0.00%-50.00% The following tables present impaired collateral dependent loans measured at fair value on a non-recurring basis by class of loans as of December 31, 2017 and 2016 . December 31, 2017 (Dollar amounts in thousands) Carrying Value Allowance for Loan Losses Allocated Fair Value Commercial Commercial & Industrial $ 493 $ 146 $ 347 Farmland 3,035 268 2,767 Non Farm, Non Residential — — — Agriculture 537 205 332 All Other Commercial — — — Residential First Liens 442 6 436 Home Equity — — — Junior Liens — — — Multifamily — — — All Other Residential — — — Consumer Motor Vehicle — — — All Other Consumer — — — TOTAL $ 4,507 $ 625 $ 3,882 December 31, 2016 (Dollar amounts in thousands) Carrying Value Allowance for Loan Losses Allocated Fair Value Commercial Commercial & Industrial $ 537 $ 36 $ 501 Farmland — — — Non Farm, Non Residential 657 206 451 Agriculture — — — All Other Commercial — — — Residential First Liens 524 89 435 Home Equity — — — Junior Liens — — — Multifamily — — — All Other Residential — — — Consumer Motor Vehicle — — — All Other Consumer — — — TOTAL $ 1,718 $ 331 $ 1,387 The carrying amounts and estimated fair values of financial instruments are shown below. Carrying amount is the estimated fair value for cash and due from banks, federal funds sold, accrued interest receivable and payable, demand deposits, short-term and certain other borrowings, and variable-rate loans or deposits that reprice frequently and fully. Security fair values are determined as previously described. It is not practicable to determine the fair value of restricted stock due to restrictions placed on their transferability. For fixed-rate loans or deposits, variable rate loans or deposits with infrequent repricing or repricing limits, and for longer-term borrowings, fair value is based on discounted cash flows using current market rates applied to the estimated life and credit risk. The methods utilized to estimate the fair value of loans do not necessarily represent an exit price. Fair values for impaired loans are estimated using discounted cash flow analysis or underlying collateral values. Fair value of debt is based on current rates for similar financing. The fair value of off-balance sheet items is not considered material. The carrying amount and estimated fair value of assets and liabilities are presented in the table below and were determined based on the above assumptions: December 31, 2017 Carrying Fair Value (Dollar amounts in thousands) Value Level 1 Level 2 Level 3 Total Cash and due from banks $ 74,107 $ 20,682 $ 53,425 $ — $ 74,107 Securities available-for-sale 814,931 — 796,646 18,285 814,931 Restricted stock 10,379 n/a n/a n/a n/a Loans, net 1,886,852 — — 1,878,166 1,878,166 Accrued interest receivable 12,913 — 3,596 9,317 12,913 Deposits (2,458,653 ) — (2,456,900 ) — (2,456,900 ) Short-term borrowings (57,686 ) — (57,686 ) — (57,686 ) Federal Home Loan Bank advances — — — — — Accrued interest payable (372 ) — (372 ) — (372 ) December 31, 2016 Carrying Fair Value (Dollar amounts in thousands) Value Level 1 Level 2 Level 3 Total Cash and due from banks $ 75,012 $ 21,047 $ 53,965 $ — $ 75,012 Federal funds sold 6,952 — 6,952 — 6,952 Securities available-for-sale 853,725 — 837,147 16,578 853,725 Restricted stock 10,359 n/a n/a n/a n/a Loans, net 1,820,407 — — 1,854,046 1,854,046 Accrued interest receivable 12,311 — 3,340 8,971 12,311 Deposits (2,428,526 ) — (2,414,555 ) — (2,414,555 ) Short-term borrowings (80,989 ) — (80,989 ) — (80,989 ) Federal Home Loan Bank advances (132 ) — (137 ) — (137 ) Accrued interest payable (363 ) — (363 ) — (363 )

RESTRICTIONS ON CASH AND DUE FR

RESTRICTIONS ON CASH AND DUE FROM BANKS:	12 Months Ended
	Dec. 31, 2017
Restrictions On Cash and Due From Banks Disclosure [Abstract]
RESTRICTIONS ON CASH AND DUE FROM BANKS	RESTRICTIONS ON CASH AND DUE FROM BANKS: Certain affiliate banks are required to maintain average reserve balances with the Federal Reserve Bank. The amount of those reserve balances was approximately $12.5 million and $12.0 million at December 31, 2017 and 2016 , respectively.

SECURITIES_

SECURITIES:	12 Months Ended
	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
SECURITIES	SECURITIES: The fair value of securities available-for-sale and related gross unrealized gains and losses recognized in accumulated other comprehensive income were as follows: December 31, 2017 Amortized Unrealized (Dollar amounts in thousands) Cost Gains Losses Fair Value U.S. Government entity mortgage-backed securities $ 13,989 $ 24 $ (318 ) $ 13,695 Mortgage-backed securities, residential 215,079 2,071 (1,812 ) 215,338 Mortgage-backed securities, commercial 1 — — 1 Collateralized mortgage obligations 346,005 370 (6,705 ) 339,670 State and municipal obligations 227,651 4,671 (700 ) 231,622 Collateralized debt obligations 8,644 5,961 — 14,605 TOTAL $ 811,369 $ 13,097 $ (9,535 ) $ 814,931 December 31, 2016 Amortized Unrealized (Dollar amounts in thousands) Cost Gains Losses Fair Value U.S. Government entity mortgage-backed securities $ 13,594 $ 32 $ (377 ) $ 13,249 Mortgage-backed securities, residential 261,878 3,200 (4,073 ) 261,005 Mortgage-backed securities, commercial 4 — — 4 Collateralized mortgage obligations 353,499 1,021 (6,344 ) 348,176 State and municipal obligations 217,365 3,954 (2,396 ) 218,923 Collateralized debt obligations 9,181 4,411 (1,224 ) 12,368 TOTAL $ 855,521 $ 12,618 $ (14,414 ) $ 853,725 As of December 31, 2017 , the Corporation does not have any securities from any issuer, other than the U.S. Government, with an aggregate book or fair value that exceeds ten percent of shareholders' equity. Securities with a carrying value of approximately $423.9 million and $391.1 million at December 31, 2017 and 2016 , respectively, were pledged as collateral for short-term borrowings and for other purposes. Below is a summary of the gross gains and losses realized by the Corporation on investment sales and calls during the years ended December 31, 2017 , 2016 and 2015 , respectively. (Dollar amounts in thousands) 2017 2016 2015 Proceeds $ 15,348 $ 8,160 $ 3,735 Gross gains 185 39 23 Gross losses (126 ) (5 ) (6 ) Gains of $185 thousand and losses of $126 thousand in 2017 and gains of $39 thousand and losses of $5 thousand in 2016 and gains of $23 thousand and losses of $6 thousand in 2015 resulted from redemption premiums on called and sold securities. Contractual maturities of debt securities at year-end 2017 were as follows. Securities not due at a single maturity or with no maturity date, primarily mortgage-backed and collateralized mortgage obligations, are shown separately. Available-for-Sale Amortized Fair (Dollar amounts in thousands) Cost Value Due in one year or less $ 4,683 $ 4,701 Due after one but within five years 30,765 31,338 Due after five but within ten years 83,483 85,726 Due after ten years 131,353 138,157 250,284 259,922 Mortgage-backed securities and collateralized mortgage obligations 561,085 555,009 TOTAL $ 811,369 $ 814,931 The following tables show the securities' gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in continuous unrealized loss position, at December 31, 2017 and 2016 . December 31, 2017 Less Than 12 Months More Than 12 Months Total Unrealized Unrealized Unrealized (Dollar amounts in thousands) Fair Value Losses Fair Value Losses Fair Value Losses U.S. Government entity mortgage-backed securities $ 9,321 $ (86 ) 3,538 (232 ) $ 12,859 $ (318 ) Mortgage-backed securities, residential 79,918 (425 ) 53,815 (1,387 ) 133,733 (1,812 ) Collateralized mortgage obligations 150,182 (1,418 ) 146,750 (5,287 ) 296,932 (6,705 ) State and municipal obligations 27,347 (183 ) 18,660 (517 ) 46,007 (700 ) Total temporarily impaired securities $ 266,768 $ (2,112 ) $ 222,763 $ (7,423 ) $ 489,531 $ (9,535 ) December 31, 2016 Less Than 12 Months More Than 12 Months Total Unrealized Unrealized Unrealized (Dollar amounts in thousands) Fair Value Losses Fair Value Losses Fair Value Losses U.S. Government entity mortgage-backed securities $ 12,224 $ (377 ) $ — $ — $ 12,224 $ (377 ) Mortgage-backed securities, residential 202,248 (4,072 ) 152 (1 ) 202,400 (4,073 ) Collateralized mortgage obligations 169,717 (3,086 ) 79,999 (3,258 ) 249,716 (6,344 ) State and municipal obligations 72,852 (2,396 ) — — 72,852 (2,396 ) Collateralized debt obligations 7,561 (1,224 ) — — 7,561 (1,224 ) Total temporarily impaired securities $ 464,602 $ (11,155 ) $ 80,151 $ (3,259 ) $ 544,753 $ (14,414 ) The Corporation held 239 investment securities with an amortized cost greater than fair value as of December 31, 2017 . The unrealized losses on collateralized mortgage obligations, all mortgage-backed securities and state and municipal obligations represent negative adjustments to fair value relative to the rate of interest paid on the securities and not losses related to the creditworthiness of the issuer. Gross unrealized losses on investment securities were $9.5 million as of December 31, 2017 and $14.4 million as of December 31, 2016 . Management does not intend to sell and it is not more likely than not that management would be required to sell the securities prior to their anticipated recovery. Management believes the value will recover as the securities approach maturity or market rates change. Management evaluates securities for other-than-temporary impairment ("OTTI") at least on a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation. The investment securities portfolio is evaluated for OTTI by segregating the portfolio into two general segments and applying the appropriate OTTI model. Investment securities are generally evaluated for OTTI under FASB ASC 320, Investments—Debt and Equity Securities. However, certain purchased beneficial interests, including non-agency mortgage-backed securities, asset-backed securities, and collateralized debt obligations, that had credit ratings at the time of purchase of below AA are evaluated using the model outlined in FASB ASC 325-40, Beneficial Interests in Securitized Financial Assets. In determining OTTI under the FASB ASC-320 model, management considers many factors, including: (1)the length of time and the extent to which the fair value has been less than cost, (2)the financial condition and near-term prospects of the issuer, (3) whether the fair value decline was affected by macroeconomic conditions, and (4) whether the entity has the intent to sell the security or more likely than not will be required to sell the security before its anticipated recovery. The assessment of whether an other-than-temporary decline exists involves a high degree of subjectivity and judgment and is based on the information available to management at a point in time. The second segment of the portfolio uses the OTTI guidance provided by FASB ASC-325 that is specific to purchase beneficial interests that, on the purchase date, were rated below AA. Under the FASB ASC-325 model, the Corporation compares the present value of the remaining cash flows as estimated at the preceding evaluation date to the current expected remaining cash flows. An OTTI is deemed to have occurred if there has been an adverse change in the remaining expected future cash flows. When OTTI occurs under either model, the amount of the OTTI recognized in earnings depends on whether an entity intends to sell the security or it is more likely than not it will be required to sell the security before recovery of its amortized cost basis, less any current-period credit loss. If an entity intends to sell or it is more likely than not it will be required to sell the security before recovery of its amortized cost basis, less any current-period credit loss, the OTTI shall be recognized in earnings equal to the entire difference between the investment's amortized cost basis and its fair value at the balance sheet date. If an entity does not intend to sell the security and it is not more likely than not that the entity will be required to sell the security before recovery of its amortized cost basis less any current-period loss, the OTTI shall be separated into the amount representing the credit loss and the amount related to all other factors. The amount of the total OTTI related to the credit loss is determined based on the present value of cash flows expected to be collected and is recognized in earnings. The amount of the total OTTI related to other factors is recognized in other comprehensive income, net of applicable taxes. The previous amortized cost basis less the OTTI recognized in earnings becomes the new amortized cost basis of the investment. In prior years, a significant portion of the total unrealized losses relates to collateralized debt obligations that were separately evaluated under FASB ASC 325-40, Beneficial Interests in Securitized Financial Assets. Based upon qualitative considerations, such as a downgrade in credit rating or further defaults of underlying issuers during the year, and an analysis of expected cash flows, we determined that three CDOs included in collateralized debt obligations were other-than-temporarily impaired. One of the CDO's was called in first quarter 2017. The remaining two CDO’s have a contractual balance of $18.4 million at December 31, 2017 which has been reduced to $14.6 million by $2.6 million of interest payments received, $7.2 million of cumulative OTTI charges recorded through earnings to date and increased by $6.0 million recorded in other comprehensive income. The severity of the OTTI recorded varies by security, based on the analysis described below, and ranges, at December 31, 2017 from 28% to 80% . The temporary impairment recorded in other comprehensive income is due to factors other than credit loss, mainly current market illiquidity. These securities are collateralized by trust preferred securities issued primarily by bank holding companies, but certain pools do include a limited number of insurance companies. The Corporation uses the OTTI evaluation model to compare the present value of expected cash flows to the previous estimate to determine if there are adverse changes in cash flows during the year. The OTTI model considers the structure and term of the CDO and the financial condition of the underlying issuers. Specifically, the model details interest rates, principal balances of note classes and underlying issuers, the timing and amount of interest and principal payments of the underlying issuers, and the allocation of the payments to the note classes. Cash flows are projected using a forward rate LIBOR curve, as these CDOs are variable-rate instruments. An average rate is then computed using this same forward rate curve to determine an appropriate discount rate ( 3 month LIBOR plus margin ranging from 160 to 180 basis points). The current estimate of expected cash flows is based on the most recent trustee reports and any other relevant market information, including announcements of interest payment deferrals or defaults of underlying trust preferred securities. Assumptions used in the model include expected future default rates and prepayments. We assume no recoveries on defaults and treat all interest payment deferrals as defaults. In addition we use the model to “stress” each CDO, or make assumptions more severe than expected activity, to determine the degree to which assumptions could deteriorate before the CDO could no longer fully support repayment of the Corporation’s note class. In the current year management determined there was no OTTI. There was no OTTI recorded in 2016 or 2015. Collateralized debt obligations include one additional investment in a CDO consisting of pooled trust preferred securities in which the issuers are primarily banks. This CDO was paid in full in 2015. In the first quarter of 2017 a CDO with no remaining book value was called with the bank receiving $3.1 million , which is included in other non-interest income on the consolidated statements of income and comprehensive income. Management has consistently used Standard & Poors pricing to value these investments. There are a number of other pricing sources available to determine fair value for these investments. These sources utilize a variety of methods to determine fair value. The result is a wide range of estimates of fair value for these securities. The Standard & Poors pricing ranges from 67.64 to 79.33 while Moody’s Investor Service pricing ranges from 19.53 to 49.45 , with others falling somewhere in between. We recognize that the Standard & Poors pricing utilized is an estimate, but have been consistent in using this source and its estimate of fair value. The table below presents a rollforward of the credit losses recognized in earnings for the years presented: (Dollar amounts in thousands) 2017 2016 2015 Beginning balance, January 1, $ 13,974 $ 13,995 $ 14,050 Amounts related to credit loss for which other-than- temporary impairment was not previously recognized — — — Reductions for securities called during the period (6,842 ) Reductions for increase in cash flows expected to be collected that are recognized over the remaining life of the security — (21 ) (55 ) Increases to the amount related to the credit loss for which other- than-temporary impairment was previously recognized — — — Ending balance, December 31, $ 7,132 $ 13,974 $ 13,995

LOANS_

LOANS:	12 Months Ended
	Dec. 31, 2017
Loans Receivable, Net [Abstract]
LOANS	Loans are summarized as follows: December 31, (Dollar amounts in thousands) 2017 2016 Commercial $ 1,139,490 $ 1,106,182 Residential 436,143 423,911 Consumer 327,976 305,881 Total gross loans 1,903,609 1,835,974 Deferred costs, net 3,152 3,206 Allowance for loan losses (19,909 ) (18,773 ) TOTAL $ 1,886,852 $ 1,820,407 Loans in the above summary include loans totaling $4.3 million and $5.1 million at December 31, 2017 and 2016 that are subject to the FDIC loss share arrangement (“covered loans”) discussed in footnote 6. The Corporation periodically sells residential mortgage loans it originates based on the overall loan demand of the Corporation and the outstanding balances in the residential mortgage portfolio. At December 31, 2017 and 2016 , loans held for sale included $4.1 million and $6.1 million , respectively, and are included in the totals above. In the normal course of business, the Corporation’s subsidiary banks make loans to directors and executive officers and to their associates. In 2017 , the aggregate dollar amount of these loans to directors and executive officers who held office amounted to $59.1 million at the beginning of the year. During 2017 , advances of $26.9 million , repayments of $43.3 million were made with respect to related party loans for an aggregate dollar amount outstanding of $42.7 million at December 31, 2017 . Loans serviced for others, which are not reported as assets, total $484.4 million and $496.2 million at year-end 2017 and 2016 . Custodial escrow balances maintained in connection with serviced loans were $2.8 million and $2.7 million at year-end 2017 and 2016 . Activity for capitalized mortgage servicing rights (included in other assets) was as follows: December 31, (Dollar amounts in thousands) 2017 2016 2015 Servicing rights: Beginning of year $ 1,549 $ 1,746 $ 1,863 Additions 477 480 531 Amortized to expense (592 ) (677 ) (648 ) End of year $ 1,434 $ 1,549 $ 1,746 Third party valuations are conducted periodically for mortgage servicing rights. Based on these valuations, fair values were approximately $2.3 million and $2.6 million at year end 2017 and 2016 . There was no valuation allowance in 2017 or 2016 . Fair value for 2017 was determined using a discount rate of 13% , prepayment speeds ranging from 112% to 250% , depending on the stratification of the specific right. Fair value at year end 2016 was determined using a discount rate of 12% , prepayment speeds ranging from 108% to 316% , depending on the stratification of the specific right. Mortgage servicing rights are amortized over 8 years, the expected life of the sold loans.

ACQUISITIONS AND FDIC INDEMNIFI

ACQUISITIONS AND FDIC INDEMNIFICATION ASSET:	12 Months Ended
	Dec. 31, 2017
Business Combinations [Abstract]
ACQUISITIONS AND FDIC INDEMNIFICATION ASSET	ACQUISITIONS, DIVESTITURES AND FDIC INDEMNIFICATION ASSET: The Bank is party to a loss sharing agreement with the Federal Deposit Insurance Corporation (“FDIC”) as a result of a 2009 acquisition. Under the loss-sharing agreement (“LSA”), the Bank will share in the losses on assets covered under the agreement (referred to as covered assets). On losses up to $29 million , the FDIC agreed to reimburse the Bank for 80% of the losses. On losses exceeding $29 million , the FDIC agreed to reimburse the Bank for 95% of the losses. The loss-sharing agreement is subject to following servicing procedures as specified in the agreement with the FDIC. Loans acquired that are subject to the loss-sharing agreement with the FDIC are referred to as covered loans for disclosure purposes. Since the acquisition date the Bank has been reimbursed $24.3 million for losses and carrying expenses. In 2014 the non-single family (NSF) loss period ended eliminating future loss reimbursements only to the extent of recoveries received. There is no estimate for the loans subject to the loss-sharing agreement identified in the allowance for loan loss evaluation as future potential losses at December 31, 2017 . Loans covered by the loss share agreement excluding AS 310-30 loans at December 31, 2017 and 2016 totaled $4.3 million and $5.1 million , respectively. FASB ASC 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality, applies to a loan with evidence of deterioration of credit quality since origination, acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. FASB ASC 310-30 prohibits carrying over or creating an allowance for loan losses upon initial recognition. The carrying amount of loans accounted for in accordance with FASB ASC 310-30 at December 31, 2017 and 2016 , are shown in the following tables: 2017 (Dollar amounts in thousands) Commercial Consumer Total Beginning balance $ 3,451 $ 1,430 $ 4,881 Discount accretion — — — Disposals (1,555 ) (1,430 ) (2,985 ) ASC 310-30 Loans $ 1,896 $ — $ 1,896 2016 (Dollar amounts in thousands) Commercial Consumer Total Beginning balance $ 4,122 $ 1,480 $ 5,602 Discount accretion — — — Disposals (671 ) (50 ) (721 ) ASC 310-30 Loans $ 3,451 $ 1,430 $ 4,881 During the quarter ended March 31, 2016 the Corporation sold a significant portion of the assets and liabilities of the insurance operation for a gain of $12.8 million . Settlement of the transaction has been completed and the original gain was reduced by $199 thousand during the third quarter of 2016. The total assets, total revenues and net income of the insurance operation for 2015 were $13.0 million , $7.6 million and $168 thousand , respectively. For 2014 they were $15.8 million , $8.3 million and $544 thousand , respectively. The Corporation has chosen to focus its resources on the core banking activities. The sale of the insurance operations eliminated the goodwill of $5.1 million from the original acquisition.

ALLOWANCE FOR LOAN LOSSES_

ALLOWANCE FOR LOAN LOSSES:	12 Months Ended
	Dec. 31, 2017
Allowance For Loan Losses Disclosure [Abstract]
ALLOWANCE FOR LOAN LOSSES	The following table presents the activity of the allowance for loan losses by portfolio segment for the years ended December 31, 2017 , 2016 and 2015 . Allowance for Loan Losses: December 31, 2017 (Dollar amounts in thousands) Commercial Residential Consumer Unallocated Total Beginning balance $ 9,731 $ 1,553 $ 5,767 $ 1,722 $ 18,773 Provision for loan losses 745 (179 ) 4,987 (258 ) 5,295 Loans charged -off (1,572 ) (761 ) (6,429 ) — (8,762 ) Recoveries 1,377 842 2,384 — 4,603 Ending Balance $ 10,281 $ 1,455 $ 6,709 $ 1,464 $ 19,909 Allowance for Loan Losses: December 31, 2016 (Dollar amounts in thousands) Commercial Residential Consumer Unallocated Total Beginning balance $ 11,482 $ 1,834 $ 4,945 $ 1,685 $ 19,946 Provision for loan losses (755 ) 54 3,964 37 3,300 Loans charged -off (2,659 ) (1,011 ) (5,279 ) — (8,949 ) Recoveries 1,663 676 2,137 — 4,476 Ending Balance $ 9,731 $ 1,553 $ 5,767 $ 1,722 $ 18,773 Allowance for Loan Losses: December 31, 2015 (Dollar amounts in thousands) Commercial Residential Consumer Unallocated Total Beginning balance $ 10,915 $ 1,374 $ 4,370 $ 2,180 $ 18,839 Provision for loan losses 990 874 3,331 (495 ) 4,700 Loans charged -off (2,852 ) (866 ) (4,810 ) — (8,528 ) Recoveries 2,429 452 2,054 — 4,935 Ending Balance $ 11,482 $ 1,834 $ 4,945 $ 1,685 $ 19,946 The following tables present the allocation of the allowance for loan losses and the recorded investment in loans by portfolio segment and based on impairment method at December 31, 2017 and 2016 : Allowance for Loan Losses: December 31, 2017 (Dollar amounts in thousands) Commercial Residential Consumer Unallocated Total Individually evaluated for impairment $ 619 $ 6 $ — $ — $ 625 Collectively evaluated for impairment 9,662 1,449 6,709 1,464 19,284 Acquired with deteriorated credit quality — — — — — BALANCE AT END OF YEAR $ 10,281 $ 1,455 $ 6,709 $ 1,464 $ 19,909 Loans (Dollar amounts in thousands) Commercial Residential Consumer Total Individually evaluated for impairment $ 9,619 $ 463 $ — $ 10,082 Collectively evaluated for impairment 1,134,701 436,944 329,435 1,901,080 Acquired with deteriorated credit quality 1,860 — — 1,860 BALANCE AT END OF YEAR $ 1,146,180 $ 437,407 $ 329,435 $ 1,913,022 Allowance for Loan Losses: December 31, 2016 (Dollar amounts in thousands) Commercial Residential Consumer Unallocated Total Individually evaluated for impairment $ 242 $ 89 $ — $ — $ 331 Collectively evaluated for impairment 9,489 1,464 5,767 1,722 18,442 Acquired with deteriorated credit quality — — — — — BALANCE AT END OF YEAR $ 9,731 $ 1,553 $ 5,767 $ 1,722 $ 18,773 Loans (Dollar amounts in thousands) Commercial Residential Consumer Total Individually evaluated for impairment $ 8,051 $ 549 $ — $ 8,600 Collectively evaluated for impairment 1,101,269 423,099 307,226 1,831,594 Acquired with deteriorated credit quality 3,415 1,431 — 4,846 BALANCE AT END OF YEAR $ 1,112,735 $ 425,079 $ 307,226 $ 1,845,040 The following tables present loans individually evaluated for impairment by class of loan. December 31, 2017 Allowance Cash Basis Unpaid for Loan Average Interest Interest Principal Recorded Losses Recorded Income Income Balance Investment Allocated Investment Recognized Recognized With no related allowance recorded: Commercial Commercial & Industrial $ 802 $ 802 $ — $ 971 $ — $ — Farmland 930 930 — 1,265 — — Non Farm, Non Residential 2,461 2,461 — 2,781 — — Agriculture 123 123 — 239 — — All Other Commercial 1,238 1,238 — 1,308 — — Residential First Liens 21 21 — 23 — — Home Equity — — — — — — Junior Liens — — — — — — Multifamily — — — — — — All Other Residential — — — — — — Consumer Motor Vehicle — — — — — — All Other Consumer — — — — — — With an allowance recorded: Commercial Commercial & Industrial 493 493 146 514 — — Farmland 3,035 3,035 268 669 — — Non Farm, Non Residential — — — 131 — Agriculture 738 537 205 279 — — All Other Commercial — — — — — — Residential First Liens 442 442 6 483 — — Home Equity — — — — — — Junior Liens — — — — — — Multifamily — — — — — — All Other Residential — — — — — — Consumer Motor Vehicle — — — — — — All Other Consumer — — — — — — TOTAL $ 10,283 $ 10,082 $ 625 $ 8,663 $ — $ — December 31, 2016 Allowance Cash Basis Unpaid for Loan Average Interest Interest Principal Recorded Losses Recorded Income Income Balance Investment Allocated Investment Recognized Recognized With no related allowance recorded: Commercial Commercial & Industrial $ 1,181 $ 1,181 $ — $ 981 $ — $ — Farmland 826 826 — 770 — — Non Farm, Non Residential 3,368 2,996 — 3,096 — — Agriculture 622 487 — 351 — — All Other Commercial 1,367 1,367 — 1,477 — — Residential First Liens 25 25 — 27 — — Home Equity — — — — — — Junior Liens — — — — — — Multifamily — — — — — — All Other Residential — — — — — — Consumer Motor Vehicle — — — — — — All Other Consumer — — — — — — With an allowance recorded: Commercial Commercial & Industrial 537 537 36 819 — — Farmland — — — — — — Non Farm, Non Residential 657 657 206 1,016 — Agriculture — — — 114 — — All Other Commercial — — — 45 — — Residential First Liens 524 524 89 647 — — Home Equity — — — — — — Junior Liens — — — — — — Multifamily — — — — — — All Other Residential — — — — — — Consumer Motor Vehicle — — — — — — All Other Consumer — — — — — — TOTAL $ 9,107 $ 8,600 $ 331 $ 9,343 $ — $ — December 31, 2015 Cash Basis Average Interest Interest Recorded Income Income Investment Recognized Recognized With no related allowance recorded: Commercial Commercial & Industrial $ 1,796 $ — $ — Farmland — — — Non Farm, Non Residential 2,080 — — Agriculture — — — All Other Commercial 1,175 — — Residential First Liens 18 — — Home Equity — — — Junior Liens — — — Multifamily — — — All Other Residential — — — Consumer Motor Vehicle — — — All Other Consumer — — — With an allowance recorded: Commercial Commercial & Industrial 3,463 — — Farmland — — — Non Farm, Non Residential 3,682 — Agriculture — — — All Other Commercial 483 — — Residential First Liens 460 — — Home Equity — — — Junior Liens — — Multifamily — — — All Other Residential — — — Consumer Motor Vehicle — — — All Other Consumer — — — TOTAL $ 13,157 $ — $ — The following tables present the recorded investment in nonperforming loans by class of loans. December 31, 2017 Loans Past Troubled Debt Due Over 90 Day Still Restructured (Dollar amounts in thousands) Accruing Accrual Non-accrual Non-accrual Commercial Commercial & Industrial $ 41 $ 2 $ 212 $ 1,679 Farmland 19 — — 4,141 Non Farm, Non Residential — 56 2,440 172 Agriculture — — — 707 All Other Commercial — — — 1,236 Residential First Liens 1,011 3,105 575 3,972 Home Equity 8 — — 249 Junior Liens 137 — — 134 Multifamily — — — — All Other Residential — — — 90 Consumer Motor Vehicle 268 9 — 242 All Other Consumer — 177 527 623 TOTAL $ 1,484 $ 3,349 $ 3,754 $ 13,245 December 31, 2016 Loans Past Troubled Debt Due Over 90 Day Still Restructured (Dollar amounts in thousands) Accruing Accrual Non-accrual Non-accrual Commercial Commercial & Industrial $ 45 $ 3 $ 383 $ 2,405 Farmland — — — 978 Non Farm, Non Residential — 60 2,941 1,027 Agriculture — — — 744 All Other Commercial — — — 1,380 Residential First Liens 276 3,525 995 5,496 Home Equity — — — 285 Junior Liens 55 — — 202 Multifamily — — — — All Other Residential — — — 94 Consumer Motor Vehicle 293 60 — 140 All Other Consumer — 150 517 741 TOTAL $ 669 $ 3,798 $ 4,836 $ 13,492 Covered loans included in loans past due over 90 days still on accrual are $88 thousand at December 31, 2017 and $80 thousand at December 31, 2016 . Covered loans included in non-accrual loans are $62 thousand at December 31, 2017 and $112 thousand at December 31, 2016 . No covered loans are deemed impaired at December 31, 2017 and 2016 . Non-performing loans include both smaller balance homogeneous loans that are collectively evaluated for impairment and individually classified impaired loans. During the years ending December 31, 2017 , 2016 , and 2015 the terms of certain loans were modified as troubled debt restructurings (TDRs). The following tables present the activity for TDR's. 2017 (Dollar amounts in thousands) Commercial Residential Consumer Total January 1, $ 3,386 $ 4,447 $ 732 $ 8,565 Added — 227 386 613 Charged Off — (289 ) (141 ) (430 ) Payments (677 ) (774 ) (263 ) (1,714 ) December 31, $ 2,709 $ 3,611 $ 714 $ 7,034 2016 (Dollar amounts in thousands) Commercial Residential Consumer Total January 1, $ 3,584 $ 5,593 $ 683 $ 9,860 Added — 123 369 492 Charged Off — (321 ) (70 ) (391 ) Payments (198 ) (948 ) (250 ) (1,396 ) December 31, $ 3,386 $ 4,447 $ 732 $ 8,565 2015 (Dollar amounts in thousands) Commercial Residential Consumer Total January 1, $ 8,955 $ 5,189 $ 614 $ 14,758 Added — 748 342 1,090 Charged Off — (65 ) (52 ) (117 ) Payments (5,371 ) (279 ) (221 ) (5,871 ) December 31, $ 3,584 $ 5,593 $ 683 $ 9,860 Modification of the terms of such loans typically include one or a combination of the following: a reduction of the stated interest rate of the loan; an extension of the maturity date at a stated rate of interest lower than the current market rate for new debt with similar risk; or a permanent reduction of the recorded investment in the loan. No modification in 2017 , 2016 or 2015 resulted in the permanent reduction of the recorded investment in the loan. Modifications involving a reduction of the stated interest rate of the loan were for periods ranging from twelve months to five years . Modifications involving an extension of the maturity date were for periods ranging from twelve months to ten years . During the years ended December 31, 2017 , 2016 and 2015 the Corporation modified 43 , 42 , and 57 loans respectively as troubled debt restructurings. All of the loans modified were smaller balance residential and consumer loans. There were no loans that were charged off within 12 months of the modification for 2017 , 2016 , or 2015 . The Corporation had no allocation of specific reserves to customers whose loan terms have been modified in troubled debt restructurings at both December 31, 2017 and 2016 and $25 thousand of specific reserves at December 31, 2015 . The Corporation has not committed to lend additional amounts as of December 31, 2017 and 2016 to customers with outstanding loans that are classified as troubled debt restructurings. The following tables present the aging of the recorded investment in loans by past due category and class of loans. Greater December 31, 2017 30-59 Days 60-89 Days than 90 days Total (Dollar amounts in thousands) Past Due Past Due Past Due Past Due Current Total Commercial Commercial & Industrial $ 372 $ 80 $ 640 $ 1,092 $ 474,709 $ 475,801 Farmland 341 — 3,671 4,012 104,457 108,469 Non Farm, Non Residential 141 — — 141 200,804 200,945 Agriculture 141 — 561 702 152,388 153,090 All Other Commercial — — — — 207,875 207,875 Residential First Liens 5,467 1,317 1,434 8,218 247,029 255,247 Home Equity 310 46 8 364 35,752 36,116 Junior Liens 274 106 194 574 41,688 42,262 Multifamily — — — — 90,141 90,141 All Other Residential 300 — 12 312 13,329 13,641 Consumer Motor Vehicle 4,770 697 294 5,761 298,211 303,972 All Other Consumer 107 22 — 129 25,334 25,463 TOTAL $ 12,223 $ 2,268 $ 6,814 $ 21,305 $ 1,891,717 $ 1,913,022 Greater December 31, 2016 30-59 Days 60-89 Days than 90 days Total (Dollar amounts in thousands) Past Due Past Due Past Due Past Due Current Total Commercial Commercial & Industrial $ 370 $ 114 $ 1,199 $ 1,683 $ 474,406 $ 476,089 Farmland 235 22 46 303 110,897 111,200 Non Farm, Non Residential 153 — 215 368 195,120 195,488 Agriculture 246 — 467 713 151,059 151,772 All Other Commercial 15 — — 15 178,171 178,186 Residential First Liens 3,862 954 1,516 6,332 264,446 270,778 Home Equity 186 64 27 277 35,782 36,059 Junior Liens 271 — 224 495 36,912 37,407 Multifamily — — — — 67,799 67,799 All Other Residential 42 12 — 54 12,982 13,036 Consumer Motor Vehicle 4,048 732 313 5,093 277,604 282,697 All Other Consumer 143 22 3 168 24,361 24,529 TOTAL $ 9,571 $ 1,920 $ 4,010 $ 15,501 $ 1,829,539 $ 1,845,040 Credit Quality Indicators: The Corporation categorizes loans 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 Corporation analyzes loans individually by classifying the loans as to credit risk. This analysis includes non-homogeneous loans, such as commercial loans, with an outstanding balance greater than $100 thousand . Any consumer loans outstanding to a borrower who had commercial loans analyzed will be similarly risk rated. This analysis is performed on a quarterly basis. The Corporation uses the following definitions for risk ratings: Special Mention: Loans classified as special mention have a potential weakness that deserves management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or of the institution’s credit position at some future date. Substandard: Loans classified as substandard are inadequately protected by the current net worth and debt service capacity of the borrower or of any pledged collateral. These loans have a well-defined weakness or weaknesses which have clearly jeopardized repayment of principal and interest as originally intended. They are characterized by the distinct possibility that the institution will sustain some future loss if the deficiencies are not corrected. Doubtful: Loans classified as doubtful have all the weaknesses inherent in those graded substandard, with the added characteristic that the severity of the weaknesses makes collection or liquidation in full highly questionable or improbable based upon currently existing facts, conditions, and values. Furthermore, non-homogeneous loans which were not individually analyzed, but are 90+ days past due or on non-accrual are classified as substandard. Loans included in homogeneous pools, such as residential or consumer, may be classified as substandard due to 90+ days delinquency, non-accrual status, bankruptcy, or loan restructuring. Loans not meeting the criteria above that are analyzed individually as part of the above described process are considered to be pass rated loans. Loans listed as not rated are either less than $100 thousand or are included in groups of homogeneous loans. Beginning in July 2016, the Company's loan rating process no longer includes all loans in a loan relationship. Therefore, certain first lien mortgage loans and consumer loans that were previously rated in a loan relationship have been included in the not rated category as of December 31, 2016. As of December 31, 2017 and 2016 , and based on the most recent analysis performed, the risk category of loans by class of loans is as follows: December 31, 2017 Special (Dollar amounts in thousands) Pass Mention Substandard Doubtful Not Rated Total Commercial Commercial & Industrial $ 430,015 $ 19,889 $ 18,611 $ 38 $ 5,947 $ 474,500 Farmland 88,338 10,782 7,466 — 10 106,596 Non Farm, Non Residential 179,181 7,689 13,632 — — 200,502 Agriculture 111,724 17,482 21,388 — 342 150,936 All Other Commercial 194,170 2,723 7,459 — 2,604 206,956 Residential First Liens 45,320 750 3,980 5 204,329 254,384 Home Equity 319 — 64 — 35,653 36,036 Junior Liens 1,882 76 342 100 39,755 42,155 Multifamily 89,936 — — — 36 89,972 All Other Residential — — 67 — 13,529 13,596 Consumer Motor Vehicle — — 731 — 301,900 302,631 All Other Consumer — — 44 — 25,301 25,345 TOTAL $ 1,140,885 $ 59,391 $ 73,784 $ 143 $ 629,406 $ 1,903,609 December 31, 2016 Special (Dollar amounts in thousands) Pass Mention Substandard Doubtful Not Rated Total Commercial Commercial & Industrial $ 427,262 $ 16,286 $ 25,177 $ 449 $ 5,730 $ 474,904 Farmland 95,115 8,300 5,238 — 532 109,185 Non Farm, Non Residential 172,739 5,745 16,601 — — 195,085 Agriculture 121,983 13,885 12,301 — 1,366 149,535 All Other Commercial 163,492 596 10,058 76 3,251 177,473 Residential First Liens 43,674 1,541 4,466 18 220,249 269,948 Home Equity 363 — 86 — 35,554 36,003 Junior Liens 1,826 85 401 26 34,977 37,315 Multifamily 66,133 1,430 15 — 65 67,643 All Other Residential — — — — 13,002 13,002 Consumer Motor Vehicle — — 331 — 281,134 281,465 All Other Consumer — — 25 — 24,391 24,416 TOTAL $ 1,092,587 $ 47,868 $ 74,699 $ 569 $ 620,251 $ 1,835,974

PREMISES AND EQUIPMENT_

PREMISES AND EQUIPMENT:	12 Months Ended
	Dec. 31, 2017
Property, Plant and Equipment, Gross [Abstract]
PREMISES AND EQUIPMENT	PREMISES AND EQUIPMENT: Premises and equipment are summarized as follows: December 31, (Dollar amounts in thousands) 2017 2016 Land $ 12,118 $ 12,265 Building and leasehold improvements 55,854 55,711 Furniture and equipment 46,399 44,608 114,371 112,584 Less accumulated depreciation (66,099 ) (63,344 ) TOTAL $ 48,272 $ 49,240 Aggregate depreciation expense was $3.95 million , $4.34 million and $4.66 million for 2017 , 2016 and 2015 , respectively. The Company leases certain branch properties and equipment under operating leases. Rent expense was $1.0 million , $0.9 million , and $0.9 million for 2017 , 2016 , and 2015 . Rent commitments, before considering renewal options that generally are present, were as follows: 2018 $ 920 2019 546 2020 382 2021 198 2022 158 Thereafter 1,019 $ 3,223

GOODWILL AND INTANGIBLE ASSETS_

GOODWILL AND INTANGIBLE ASSETS:	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND INTANGIBLE ASSETS	GOODWILL AND INTANGIBLE ASSETS: The Corporation completed its annual impairment testing of goodwill during the fourth quarter of 2017 and 2016 . Management does not believe any amount of goodwill is impaired. Intangible assets subject to amortization at December 31, 2017 and 2016 are as follows: 2017 2016 Gross Accumulated Gross Accumulated (Dollar amounts in thousands) Amount Amortization Amount Amortization Core deposit intangible $ 10,836 $ 9,206 $ 10,836 $ 8,727 $ 10,836 $ 9,206 $ 10,836 $ 8,727 Aggregate amortization expense was $479 thousand , $627 thousand and $826 thousand for 2017 , 2016 and 2015 , respectively. Estimated amortization expense for the next five years is as follows: In thousands 2018 $ 434 2019 350 2020 252 2021 232 2022 224 In 2016, the sale of certain assets and liabilities of the insurance brokerage operations resulted in the reduction of customer list intangible by $.4 million and the reduction of goodwill by $5.1 million .

DEPOSITS_

DEPOSITS:	12 Months Ended
	Dec. 31, 2017
Maturities of Time Deposits [Abstract]
DEPOSITS	DEPOSITS: Scheduled maturities of time deposits for the next five years are as follows: (dollar amounts in thousands) 2018 $ 181,508 2019 68,985 2020 40,919 2021 20,227 2022 25,240

SHORT-TERM BORROWINGS_

SHORT-TERM BORROWINGS:	12 Months Ended
	Dec. 31, 2017
Short Term Borrowings Disclosure [Abstract]
SHORT-TERM BORROWINGS	SHORT-TERM BORROWINGS: A summary of the carrying value of the Corporation's short-term borrowings at December 31, 2017 and 2016 is presented below: (Dollar amounts in thousands) 2017 2016 Federal funds purchased $ 30,165 $ 49,982 Repurchase-agreements 27,521 31,007 $ 57,686 $ 80,989 (Dollar amounts in thousands) 2017 2016 Average amount outstanding $ 39,704 $ 37,949 Maximum amount outstanding at a month end 85,714 80,989 Average interest rate during year 0.62 % 0.35 % Interest rate at year-end 0.96 % 0.64 % Federal funds purchased are generally due in one day and bear interest at market rates. The Corporation enters into sales of securities under agreements to repurchase. The amounts received under these agreements represent short-term borrowings and are reflected as a liability in the consolidated balance sheets. The securities underlying these agreements are included in investment securities in the consolidated balance sheets. The Corporation has no control over the market value of the securities, which fluctuates due to market conditions. However, the Corporation is obligated to promptly transfer additional securities if the market value of the securities falls below the repurchase agreement price. The Corporation manages this risk by maintaining an unpledged securities portfolio that it believes is sufficient to cover a decline in the market value of the securities sold under agreements to repurchase. Securities are pledged to cover these liabilities, which are not covered by federal deposit insurance. The Corporation maintains possession of and control over these securities. Collateral pledged to repurchase agreements by remaining maturity are as follows: December 31, 2017 Repurchase Agreements and Repurchase to Maturity Transactions Remaining Contractual Maturity of the Agreements (Dollar amounts in thousands) Overnight and continuous Up to 30 days 30 - 90 days Greater than 90 days Total Mortgage Backed Securities - Residential and Collateralized Mortgage Obligations $ 11,929 $ 6,282 $ 8,552 $ 758 $ 27,521 December 31, 2016 Repurchase Agreements and Repurchase to Maturity Transactions Remaining Contractual Maturity of the Agreements (Dollar amounts in thousands) Overnight and continuous Up to 30 days 30 - 90 days Greater than 90 days Total Mortgage Backed Securities - Residential and Collateralized Mortgage Obligations $ 11,238 $ 9,495 $ 9,516 $ 758 $ 31,007

OTHER BORROWINGS_

OTHER BORROWINGS:	12 Months Ended
	Dec. 31, 2017
Other Borrowings Disclosure [Abstract]
OTHER BORROWINGS	OTHER BORROWINGS: Other borrowings at December 31, 2017 and 2016 are summarized as follows: (Dollar amounts in thousands) 2017 2016 FHLB advances $ — $ 132 The aggregate minimum annual retirements of other borrowings are as follows: 2018 $ — 2019 — 2020 — 2021 — 2022 — Thereafter — $ — The Corporation's subsidiary banks are members of the Federal Home Loan Bank (FHLB) and accordingly are permitted to obtain advances. There are no advances from the FHLB at December 31, 2017 , and $132 thousand at December 31, 2016 , which accrue interest, payable monthly, at annual rates, primarily fixed, varying from 0.8% to 6.6% in 2017 and 0.5% to 6.6% in 2016 . FHLB advances are, generally, due in full at maturity. They are secured by eligible securities totaling $120.1 million at December 31, 2017 , and $57.1 million at December 31, 2016 , and a blanket pledge on real estate loan collateral. Based on this collateral and the Corporation's holdings of FHLB stock, the Corporation is eligible to borrow up to $223.4 million at year end 2017 . Certain advances may be prepaid, without penalty, prior to maturity. The FHLB can adjust the interest rate from fixed to variable on certain advances, but those advances may then be prepaid, without penalty.

INCOME TAXES_

INCOME TAXES:	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES: Income tax expense is summarized as follows: (Dollar amounts in thousands) 2017 2016 2015 Federal: Currently payable $ 8,303 $ 15,514 $ 9,890 Deferred 3,756 1,326 (774 ) Expense due to enactment of federal tax reform 6,282 — — 18,341 16,840 9,116 State: Currently payable 1,818 2,857 1,426 Deferred 463 186 (150 ) 2,281 3,043 1,276 TOTAL $ 20,622 $ 19,883 $ 10,392 The reconciliation of income tax expense with the amount computed by applying the statutory federal income tax rate of 35% to income before income taxes is summarized as follows: (Dollar amounts in thousands) 2017 2016 2015 Federal income taxes computed at the statutory rate $ 17,414 $ 20,403 $ 14,206 Add (deduct) tax effect of: Tax exempt income (4,102 ) (3,992 ) (4,047 ) Non-deductible insurance brokerage goodwill — 1,797 — ESOP dividend deduction (102 ) (47 ) (164 ) State tax, net of federal benefit 1,483 1,978 829 Affordable housing credits (148 ) (148 ) (148 ) Expense due to enactment of federal tax reform 6,282 — — Other, net (205 ) (108 ) (284 ) TOTAL $ 20,622 $ 19,883 $ 10,392 On December 22, 2017, the Tax Cuts and Jobs Act was signed into law. The primary change for the Corporation was to lower the corporate income tax rate from 35% to 21%. The Corporation's deferred tax assets and liabilities were re-measured based on the income tax rates at which they are expected to reverse in the future, which is generally 21%. The amount recorded related to the re-measurement of the Corporation's deferred tax balance was $6.3 million, an increase to income tax expense for the year ended December 31, 2017. The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and liabilities at December 31, 2017 and 2016 , are as follows: (Dollar amounts in thousands) 2017 2016 Deferred tax assets: Other than temporary impairment $ 1,829 $ 5,397 Net unrealized losses on retirement plans 6,609 8,576 Net unrealized losses on securities available for sale — 719 Loan loss provisions 5,195 7,318 Deferred compensation 3,661 5,881 Compensated absences 563 832 Post-retirement benefits 1,359 2,043 Deferred loss on acquisition 663 1,111 Other 2,123 3,119 GROSS DEFERRED ASSETS 22,002 34,996 Deferred tax liabilities: Net unrealized gains on securities available-for-sale (804 ) — Depreciation (1,989 ) (2,778 ) Mortgage servicing rights (308 ) (486 ) Pensions (201 ) (65 ) Intangibles (2,446 ) (3,015 ) Other (2,408 ) (3,180 ) GROSS DEFERRED LIABILITIES (8,156 ) (9,524 ) NET DEFERRED TAX ASSETS $ 13,846 $ 25,472 Unrecognized Tax Benefits — A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows: (Dollar amounts in thousands) 2017 2016 2015 Balance at January 1 $ 698 $ 513 $ 589 Additions based on tax positions related to the current year 257 288 68 Additions based on tax positions related to prior years — — — Reductions due to the statute of limitations (130 ) (103 ) (144 ) Balance at December 31 $ 825 $ 698 $ 513 Of this total, $825 thousand represents the amount of unrecognized tax benefits that, if recognized, would favorably affect the effective income tax rate in future periods. The Corporation does not expect the total amount of unrecognized tax benefits to significantly increase or decrease in the next 12 months. The total amount of interest and penalties recorded in the income statement for the years ended December 31, 2017 , 2016 and 2015 was an expense increase of $4 thousand, an increase of $4 thousand, and a decrease of $17 thousand, respectively. The amount accrued for interest and penalties at December 31, 2017 , 2016 and 2015 was $40 thousand, $31 thousand and $27 thousand, respectively. The Corporation and its subsidiaries are subject to U.S. federal income tax as well as income tax of the states of Indiana and Illinois. The Corporation is no longer subject to examination by taxing authorities for years before 2014.

FINANCIAL INSTRUMENTS WITH OFF-

FINANCIAL INSTRUMENTS WITH OFF-BALANCE-SHEET RISK:	12 Months Ended
	Dec. 31, 2017
Risks and Uncertainties [Abstract]
FINANCIAL INSTRUMENTS WITH OFF-BALANCE-SHEET RISK	FINANCIAL INSTRUMENTS WITH OFF-BALANCE-SHEET RISK: The Corporation is a party to financial instruments with off-balance-sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include conditional commitments and commercial letters of credit. The financial instruments involve to varying degrees, elements of credit and interest rate risk in excess of amounts recognized in the financial statements. The Corporation's maximum exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to make loans is limited generally by the contractual amount of those instruments. The Corporation follows the same credit policy to make such commitments as is followed for those loans recorded in the consolidated financial statements. Commitment and contingent liabilities are summarized as follows at December 31: (Dollar amounts in thousands) 2017 2016 Home Equity $ 57,060 $ 55,362 Commercial Operating Lines 246,855 268,577 Other Commitments 83,786 66,408 TOTAL $ 387,701 $ 390,347 Commercial letters of credit $ 5,012 $ 5,673 The majority of commercial operating lines and home equity lines are variable rate, while the majority of other commitments to fund loans are fixed rate. Fixed rate commitments had a range of interest rates from 4.00% to 7.25% in 2017 . In 2016 this range of rates was from 3.25% to 7.00% . Since many commitments to make loans expire without being used, these amounts do not necessarily represent future cash commitments. Collateral obtained upon exercise of the commitment is determined using management's credit evaluation of the borrower, and may include accounts receivable, inventory, property, land and other items. The approximate duration of these commitments is generally one year or less. Derivatives: The Corporation enters into derivative instruments for the benefit of its customers. At the inception of a derivative contract, the Corporation designates the derivative as an instrument with no hedging designation ("standalone derivative"). Changes in the fair value of derivatives are reported currently in earnings as non-interest income. Net cash settlements on derivatives that do not qualify for hedge accounting are reported in non-interest income. First Financial Bank offers clients the ability on certain transactions to enter into interest rate swaps. Typically, these are pay fixed, receive floating swaps used in conjunction with commercial loans. These derivative contracts do not qualify for hedge accounting. The Bank hedges the exposure to these contracts by entering into offsetting contracts with substantially matching terms. The notional amount of these interest rate swaps was $20.1 million and $21.3 million at December 31, 2017 and 2016 . The fair value of these contracts combined was zero, as gains offset losses. The gross gain and loss associated with these interest rate swaps was $0.2 million and $0.6 million at December 31, 2017 and 2016 .

RETIREMENT PLANS_

RETIREMENT PLANS:	12 Months Ended
	Dec. 31, 2017
Retirement Benefits [Abstract]
RETIREMENT PLANS	RETIREMENT PLANS: Employees of the Corporation are covered by a retirement program that consists of a defined benefit plan and an employee stock ownership plan (ESOP). Plan assets consist primarily of the Corporation's stock and obligations of U.S. Government agencies. Benefits under the defined benefit plan are actuarially determined based on an employee's service and compensation, as defined, and funded as necessary. This plan was frozen for the majority of employees as of December 31, 2012.Those employees will be eligible to participate in a 401K plan that the Corporation can contribute a discretionary match of the pay contributed by the employee. In addition the ESOP plan will continue in place for all employees. Assets in the ESOP are considered in calculating the funding to the defined benefit plan required to provide such benefits. Any shortfall of benefits under the ESOP are to be provided by the defined benefit plan. The ESOP may provide benefits beyond those determined under the defined benefit plan. Contributions to the ESOP are determined by the Corporation's Board of Directors. The Corporation made contributions to the defined benefit plan of $2.55 million , $2.70 million and $1.84 million in 2017 , 2016 and 2015 . The Corporation contributed $1.06 million , $1.36 million and $1.29 million to the ESOP in 2017 , 2016 and 2015 . There were contributions of $676 thousand , $872 thousand and $746 thousand to the ESOP for employees no longer participating in the defined benefit plan in 2017 , 2016 and 2015 respectively. The Corporation uses a measurement date of December 31. Net periodic benefit cost and other amounts recognized in other comprehensive income included the following components: (Dollar amounts in thousands) 2017 2016 2015 Service cost - benefits earned $ 1,432 $ 1,882 $ 2,153 Interest cost on projected benefit obligation 3,621 3,729 3,516 Expected return on plan assets (3,940 ) (3,429 ) (3,452 ) Net amortization and deferral 1,205 1,936 2,065 Net periodic pension cost 2,318 4,118 4,282 Net loss (gain) during the period 5,366 (6,150 ) (1,894 ) Amortization of prior service cost (1 ) (1 ) (1 ) Amortization of unrecognized gain (loss) (1,204 ) (1,935 ) (2,064 ) Total recognized in other comprehensive (income) loss 4,161 (8,086 ) (3,959 ) Total recognized net periodic pension cost and other comprehensive income $ 6,479 $ (3,968 ) $ 323 The estimated net loss and prior service costs (credits) for the defined benefit pension plan that will be amortized from accumulated other comprehensive income into net periodic benefit cost over the next fiscal year are $1.7 million and $1 thousand . The information below sets forth the change in projected benefit obligation, reconciliation of plan assets, and the funded status of the Corporation's retirement program. Actuarial present value of benefits is based on service to date and present pay levels. (Dollar amounts in thousands) 2017 2016 Change in benefit obligation: Benefit obligation at January 1 $ 93,233 $ 90,855 Service cost 1,432 1,882 Interest cost 3,621 3,729 Actuarial (gain) loss 5,305 2,839 Benefits paid (5,495 ) (6,072 ) Benefit obligation at December 31 98,096 93,233 Reconciliation of fair value of plan assets: Fair value of plan assets at January 1 70,132 60,602 Actual return on plan assets 3,879 12,418 Employer contributions 2,933 3,184 Benefits paid (5,495 ) (6,072 ) Fair value of plan assets at December 31 71,449 70,132 Funded status at December 31 (plan assets less benefit obligation) $ (26,647 ) $ (23,101 ) Amounts recognized in accumulated other comprehensive income at December 31, 2017 and 2016 consist of: (Dollar amounts in thousands) 2017 2016 Net loss (gain) $ 25,621 $ 21,459 Prior service cost (credit) 3 4 $ 25,624 $ 21,463 The accumulated benefit obligation for the defined benefit pension plan was $93.3 million and $88.5 million at year-end 2017 and 2016 . Principal assumptions used to determine pension benefit obligation at year end: 2017 2016 Discount rate 3.60 % 4.14 % Rate of increase in compensation levels 3.00 3.00 Principal assumptions used to determine net periodic pension cost: 2017 2016 Discount rate 4.14 % 4.34 % Rate of increase in compensation levels 3.00 3.00 Expected long-term rate of return on plan assets 6.00 6.00 The expected long-term rate of return was estimated using market benchmarks for equities and bonds applied to the plan's target asset allocation. Management estimated the rate by which plan assets would perform based on historical experience as adjusted for changes in asset allocations and expectations for future return on equities as compared to past periods. Plan Assets — The Corporation's pension plan weighted-average asset allocation for the years 2017 and 2016 by asset category are as follows: Pension Plan Target Allocation ESOP Target Allocation Pension Percentage of Plan Assets at December 31, ESOP Percentage of Plan Assets at December 31, ASSET CATEGORY 2017 2017 2017 2016 2017 2016 Equity securities 25-75% 95-99% 72 % 68 % 98 % 99 % Debt securities 0-50% 0-0% 25 % 29 % — % — % Other 0-20% 0-5% 3 % 3 % 2 % 1 % TOTAL 100 % 100 % 100 % 100 % Fair Value of Plan Assets — Fair value is the exchange price that would be received for an asset in the principal or most advantageous market for the asset in an orderly transaction between market participants on the measurement date. It also establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The Corporation used the following methods and significant assumptions to estimate the fair value of each type of financial instrument: Equity, Debt, Investment Funds and Other Securities — The fair values for investment securities are determined by quoted market prices, if available (Level 1). For securities where quoted prices are not available, fair values are calculated based on market prices of similar securities (Level 2). For securities where quoted prices or market prices of similar securities are not available, fair values are calculated using discounted cash flows or other market indicators (Level 3). The fair value of the plan assets at December 31, 2017 and 2016 , by asset category, is as follows: Fair Value Measurements at December 31, 2017 Using: Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Observable Inputs (Dollar amounts in thousands) Total (Level 1) (Level 2) (Level 3) Plan assets Equity securities $ 48,152 $ 48,152 $ — $ — Debt securities 10,717 — 10,717 — Investment Funds 12,580 12,580 — — Total plan assets $ 71,449 $ 60,732 $ 10,717 $ — Fair Value Measurements at December 31, 2016 Using: Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Observable Inputs (Dollar amounts in thousands) Total (Level 1) (Level 2) (Level 3) Plan assets Equity securities $ 51,170 $ 51,170 $ — $ — Debt securities 11,566 — 11,566 — Investment Funds 7,396 7,396 — — Total plan assets $ 70,132 $ 58,566 $ 11,566 $ — The investment objective for the retirement program is to maximize total return without exposure to undue risk. Asset allocation favors equities. This target includes the Corporation's ESOP, which is fully invested in corporate stock. Other investment allocations include fixed income securities and cash. The plan is prohibited from investing in the following: private placement equity and debt transactions; letter stock and uncovered options; short-sale margin transactions and other specialized investment activity; and fixed income or interest rate futures. All other investments not prohibited by the plan are permitted. Equity securities in the defined benefit plan include First Financial Corporation common stock in the amount of $21.4 million ( 30 percent of total plan assets) and $26.7 million ( 38 percent of total plan assets) at December 31, 2017 and 2016 , respectively. In addition the ESOP for non plan participants holds an estimated $3.8 million and $ 4.1 million of First Financial Corporation stock at December 31, 2017 and December 31, 2016 respectively. Other equity securities are predominantly stocks in large cap U.S. companies. Contributions — The Corporation expects to contribute $2.3 million to its pension plan and $813 thousand to its ESOP in 2018 . Estimated Future Payments — The following benefit payments, which reflect expected future service, are expected: PENSION BENEFITS (Dollar amounts in thousands) 2018 $ 5,837 2019 6,067 2020 6,166 2021 6,341 2022 6,474 2023-2027 35,078 Supplemental Executive Retirement Plan — The Corporation has established a Supplemental Executive Retirement Plan (SERP) for certain executive officers. The provisions of the SERP allow the Plan's participants who are also participants in the Corporation's defined benefit pension plan to receive supplemental retirement benefits to help recompense for benefits lost due to the imposition of IRS limitations on benefits under the Corporation's tax qualified defined benefit pension plan. Expenses related to the plan were $321 thousand in 2017 and $418 thousand in 2016 and $437 thousand in 2015 .The plan is unfunded and has a measurement date of December 31. The amounts recognized in other comprehensive income in the current year are as follows: (Dollar amounts in thousands) 2017 2016 2015 Net loss (gain) during the period $ 527 $ (511 ) $ (255 ) Amortization of prior service cost — — — Amortization of unrecognized gain (loss) — (57 ) (88 ) Total recognized in other comprehensive (income) loss $ 527 $ (568 ) $ (343 ) The Corporation has $4.4 million and $3.6 million recognized in the balance sheet as a liability at December 31, 2017 and 2016 . Amounts in accumulated other comprehensive income consist of $859 thousand net loss at December 31, 2017 and $332 thousand net loss at December 31, 2016 . The estimated loss for the SERP that will be amortized from accumulated other comprehensive income into net periodic benefit cost over the next fiscal year is $51 thousand . Estimated Future Payments — The following benefit payments, which reflect expected future service, are expected: (Dollar amounts on thousands) 2018 $ — 2019 180 2020 352 2021 343 2022 334 2023-2027 1,593 Post-retirement medical benefits — The Corporation also provides medical benefits to certain employees subsequent to their retirement. The Corporation uses a measurement date of December 31. Accrued post-retirement benefits as of December 31, 2017 and 2016 are as follows: December 31, (Dollar amounts in thousands) 2017 2016 Change in benefit obligation: Benefit obligation at January 1 $ 4,276 $ 4,383 Service cost 53 55 Interest cost 172 186 Plan participants' contributions 75 69 Actuarial (gain) loss 83 (144 ) Benefits paid (298 ) (273 ) Benefit obligation at December 31 $ 4,361 $ 4,276 Funded status at December 31 $ 4,361 $ 4,276 Amounts recognized in accumulated other comprehensive income consist of a net loss of $257 thousand at December 31, 2017 and $174 thousand net loss at December 31, 2016 . The post-retirement benefits paid in 2017 and 2016 of $298 thousand and $273 thousand , respectively, were fully funded by company and participant contributions. There is no estimated transition obligation for the post-retirement benefit plan that will be amortized from accumulated other comprehensive income into net periodic benefit cost over the next fiscal year. Weighted average assumptions at December 31: December 31, 2017 2016 Discount rate 3.60 % 4.14 % Initial weighted health care cost trend rate 5.00 % 5.00 % Ultimate health care cost trend rate 5.00 5.00 Year that the rate is assumed to stabilize and remain unchanged 2018 2017 Post-retirement health benefit expense included the following components: Years Ended December 31, (Dollar amounts in thousands) 2017 2016 2015 Service cost $ 53 $ 55 $ 63 Interest cost 172 186 173 Net periodic benefit cost 225 241 236 Net loss (gain) during the period 83 (144 ) (200 ) Total recognized in other comprehensive income (loss) 83 (144 ) (200 ) Total recognized net periodic benefit cost and other comprehensive income $ 308 $ 97 $ 36 Assumed health care cost trend rates have a significant effect on the amounts reported for the health care plans. A one-percentage-point change in the assumed health care cost trend rates would have the following effects: 1% Point 1% Point (Dollar amounts in thousands) Increase Decrease Effect on total of service and interest cost components $ 1 $ 1 Effect on post-retirement benefit obligation 25 23 Contributions — The Corporation expects to contribute $264 thousand to its other post-retirement benefit plan in 2017 . Estimated Future Payments — The following benefit payments, which reflect expected future service, are expected: (Dollar amounts in thousands) 2018 $ 264 2019 266 2020 274 2021 265 2022 279 2023-2027 1,408

STOCK BASED COMPENSATION_

STOCK BASED COMPENSATION:	12 Months Ended
	Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
STOCK BASED COMPENSATION	STOCK BASED COMPENSATION: On February 5, 2011, the Corporation's Board of Directors adopted and approved the First Financial Corporation 2011 Omnibus Equity Incentive Plan (the "2011 Stock Incentive Plan") effective upon the approval of the Plan by the Company's shareholders, which occurred on April 20, 2011 at the Corporation’s annual meeting of shareholders. The 2011 Stock Incentive Plan provides for the grant of non qualified stock options, incentive stock options, stock appreciation rights, restricted stock, restricted stock units and incentive awards. An aggregate of 700,000 shares of common stock are reserved for issuance under the 2011 Stock Incentive Plan. Shares issuable under the 2011 Stock Incentive Plan may be authorized and unissued shares of common stock or treasury shares. During the first quarter of 2017 and 2016 , the Compensation Committee of the Board of Directors of the Company granted restricted stock awards to certain executive officers pursuant to the Corporation's annual performance-based stock incentive bonus plan. Compensation expense is recognized over the vesting period of the awards based on the fair value of the stock at the grant date. The value of the awards was determined by dividing the award amount by the median price of a share of Company common stock on the grant dates. The restricted stock awards vest as follows — 33% on the first anniversary, 33% on the second anniversary and the remaining 34% on the third anniversary of the earned date. The Corporation has the right to retain shares to satisfy any withholding tax obligation. A total of 149,069 shares of restricted common stock of the Company were granted under the 2011 Stock Incentive Plan. A total of 550,931 remain to be granted under this plan. Restricted Stock Restricted stock awards require certain service-based or performance requirements and have a vesting period of 3 years. Compensation expense is recognized over the vesting period of the award based on the fair value of the stock at the date of issue. Compensation related to the plan was $706 thousand , $684 thousand , and $684 thousand in 2017 , 2016 and 2015 , respectively. 2017 2016 Number Weighted Average Grant Date Number Weighted Average Grant Date (shares in thousands) Outstanding Fair Value Outstanding Fair Value Nonvested balance at January 1, 20,524 32.83 20,466 33.26 Granted during the year 16,562 46.70 20,943 32.35 Vested during the year (19,067 ) 37.03 (20,885 ) 32.76 Forfeited during the year — — — — Nonvested balance at December 31, 18,019 41.14 20,524 32.83 As of December 31, 2017 and 2016 , there was $741 thousand and $674 thousand , respectively of total unrecognized compensation cost related to non-vested shares granted under the Plan. The cost is expected to be recognized over a weighted-average period of 1.5 years. The total fair value of the shares vested during the years ended December 31, 2017 and 2016 was $0.9 million and $1.1 million , respectively.

OTHER COMPREHENSIVE INCOME (LOS

OTHER COMPREHENSIVE INCOME (LOSS):	12 Months Ended
	Dec. 31, 2017
Equity [Abstract]
OTHER COMPREHENSIVE INCOME (LOSS)	OTHER COMPREHENSIVE INCOME (LOSS): The following table summarizes the changes, net of tax within each classification of accumulated other comprehensive income for the years ended December 31, 2017 and 2016 . Unrealized gains and 2017 Losses on Retirement (Dollar amounts in thousands) Securities plans Total Beginning balance, January 1 $ (1,077 ) $ (13,087 ) $ (14,164 ) Change in other comprehensive income before reclassification 3,371 (4,609 ) (1,238 ) Amounts reclassified from accumulated other comprehensive income (36 ) 734 698 Net current period other comprehensive income (loss) 3,335 (3,875 ) (540 ) Ending balance, December 31 $ 2,258 $ (16,962 ) $ (14,704 ) Unrealized gains and 2016 Losses on Retirement (Dollar amounts in thousands) Securities plans Total Beginning balance, January 1 $ 9,053 $ (18,454 ) $ (9,401 ) Change in other comprehensive income before reclassification (10,109 ) 4,151 (5,958 ) Amounts reclassified from accumulated other comprehensive income (21 ) 1,216 1,195 Net current period other comprehensive income (loss) (10,130 ) 5,367 (4,763 ) Ending balance, December 31 $ (1,077 ) $ (13,087 ) $ (14,164 ) Balance Current Balance (Dollar amounts in thousands) 1/1/2017 Change 12/31/2017 Unrealized gains (losses) on securities available-for-sale without other than temporary impairment $ (3,018 ) $ 1,647 $ (1,371 ) Unrealized gains (losses) on securities available-for-sale with other than temporary impairment 1,941 1,688 3,629 Total unrealized gain (loss) on securities available-for-sale $ (1,077 ) $ 3,335 $ 2,258 Unrealized loss on retirement plans (13,087 ) (3,875 ) (16,962 ) TOTAL $ (14,164 ) $ (540 ) $ (14,704 ) Balance at Current Period Balance at (Dollar amounts in thousands) 1/1/2016 Change 12/31/2016 Unrealized gains (losses) on securities available-for-sale without other than temporary impairment $ 5,855 $ (8,873 ) $ (3,018 ) Unrealized gains (losses) on securities available-for-sale with other than temporary impairment 3,198 (1,257 ) 1,941 Total unrealized gain (loss) on securities available-for-sale $ 9,053 $ (10,130 ) $ (1,077 ) Unrealized loss on retirement plans (18,454 ) 5,367 (13,087 ) TOTAL $ (9,401 ) $ (4,763 ) $ (14,164 ) Balance at December 31, 2017 Details about accumulated Amount reclassified from Affected line item in other comprehensive accumulated other the statement where income components comprehensive income net income is presented (in thousands) Unrealized gains and losses $ 59 Net securities gains (losses) on available-for-sale (23 ) Income tax expense securities $ 36 Net of tax Amortization of $ (1,204 ) (a) retirement plan items 470 Income tax expense $ (734 ) Net of tax Total reclassifications for the period $ (698 ) Net of tax (a) Included in the computation of net periodic benefit cost which is included in salaries and benefits. (see Footnote 15 for additional details). Balance at December 31, 2016 Details about accumulated Amount reclassified from Affected line item in other comprehensive accumulated other the statement where income components comprehensive income net income is presented (in thousands) Unrealized gains and losses $ 34 Net securities gains (losses) on available-for-sale (13 ) Income tax expense securities $ 21 Net of tax Amortization of $ (1,992 ) (a) retirement plan items 776 Income tax expense $ (1,216 ) Net of tax Total reclassifications for the period $ (1,195 ) Net of tax (a) Included in the computation of net periodic benefit cost which is included in salaries and benefits. (see Footnote 15 for additional details). Balance at December 31, 2015 Details about accumulated Amount reclassified from Affected line item in other comprehensive accumulated other the statement where income components comprehensive income net income is presented (in thousands) Unrealized gains and losses $ 17 Net securities gains (losses) on available-for-sale (6 ) Income tax expense securities $ 11 Net of tax Amortization of $ (8,066 ) (a) retirement plan items 3,146 Income tax expense $ (4,920 ) Net of tax Total reclassifications for the period $ (4,909 ) Net of tax (a) Included in the computation of net periodic benefit cost which is included in salaries and benefits. (see Footnote 15 for additional details).

REGULATORY MATTERS_

REGULATORY MATTERS:	12 Months Ended
	Dec. 31, 2017
Banking and Thrift [Abstract]
REGULATORY MATTERS	REGULATORY MATTERS: The Corporation and its bank affiliates are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory—and possibly additional discretionary—actions by regulators that, if undertaken, could have a direct material effect on the Corporation's financial statements. Further, the Corporation's primary source of funds to pay dividends to shareholders is dividends from its subsidiary banks and compliance with these capital requirements can affect the ability of the Corporation and its banking affiliates to pay dividends. At December 31, 2017 , approximately $42.1 million of undistributed earnings of the subsidiary banks, included in consolidated retained earnings, were available for distribution to the Corporation without regulatory approval. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Corporation and Banks must meet specific capital guidelines that involve quantitative measures of the Corporation's assets, liabilities, and certain off-balance-sheet items as calculated under regulatory accounting practices. The Corporation's and Banks' capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. Quantitative measures established by regulation to ensure capital adequacy require the Corporation and Banks to maintain minimum amounts and ratios of Total, Common equity tier I capital and Tier I Capital to risk-weighted assets, and of Tier I Capital to average assets. The final rules implementing Basel Committee on Banking Supervision's capital guidelines for U.S. banks (Basel lll rules) became effective for the Corporation on January 1, 2015 with full compliance with all of the requirements being phased in over a multi-year schedule, and fully phased in by January 1, 2019. Under the Basel lll rules, the Corporation must hold a capital conservation buffer above the adequately capitalized risk-based capital ratios. The capital conservation buffer is being phased in from 0.0% for 2015 to 2.50% by 2019. The capital conservation buffer for 2017 and 2016 is 1.25% and 0.625%, respectively. The net unrealized gain or loss on available for sale securities is not included in computing regulatory capital. Management believes, as of December 31, 2017 and 2016 , that the Corporation meets all capital adequacy requirements to which it is subject. As of December 31, 2017 , the most recent notification from the respective regulatory agencies categorized the subsidiary banks as well capitalized under the regulatory framework for prompt corrective action. To be categorized as well capitalized, the banks must maintain minimum total risk-based, Common equity tier I capital, Tier I risk-based and Tier I leverage ratios as set forth in the table. There are no conditions or events since that notification that management believes have changed the banks' category. The following table presents the actual and required capital amounts and related ratios for the Corporation and First Financial Bank, N.A., at year-end 2017 and 2016 . To Be Well Capitalized For Capital Under Prompt Corrective Actual Adequacy Purposes Action Provisions (Dollar amounts in thousands) Amount Ratio Amount Ratio Amount Ratio Total risk-based capital Corporation – 2017 $ 412,525 17.88 % $ 213,446 9.250 % N/A N/A Corporation – 2016 $ 411,713 18.26 % $ 194,435 8.625 % N/A N/A First Financial Bank – 2017 386,593 17.30 % 206,745 9.250 % 223,508 10.00 % First Financial Bank – 2016 384,522 17.64 % 188,003 8.625 % 217,974 10.00 % Common equity tier I capital Corporation – 2017 $ 392,615 17.01 % $ 132,682 5.750 % N/A N/A Corporation – 2016 $ 392,939 17.43 % $ 115,534 5.125 % N/A N/A First Financial Bank – 2017 370,061 16.56 % 128,517 5.750 % 145,280 6.50 % First Financial Bank – 2016 368,797 16.92 % 111,712 5.125 % 141,683 6.50 % Tier I risk-based capital Corporation – 2017 $ 392,615 17.01 % $ 167,295 7.250 % N/A N/A Corporation – 2016 $ 392,939 17.43 % $ 149,348 6.625 % N/A N/A First Financial Bank – 2017 370,061 16.56 % 162,044 7.250 % 178,807 8.00 % First Financial Bank – 2016 368,797 16.92 % 144,408 6.625 % 174,379 8.00 % Tier I leverage capital Corporation – 2017 $ 392,615 13.31 % $ 117,956 4.00 % N/A N/A Corporation – 2016 $ 392,939 13.39 % $ 117,376 4.00 % N/A N/A First Financial Bank – 2017 370,061 12.81 % 115,553 4.00 % 144,441 5.00 % First Financial Bank – 2016 368,797 12.82 % 115,047 4.00 % 143,809 5.00 %

PARENT COMPANY CONDENSED FINANC

PARENT COMPANY CONDENSED FINANCIAL STATEMENTS:	12 Months Ended
	Dec. 31, 2017
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
PARENT COMPANY CONDENSED FINANCIAL STATEMENTS	PARENT COMPANY CONDENSED FINANCIAL STATEMENTS: The parent company’s condensed balance sheets as of December 31, 2017 and 2016 , and the related condensed statements of income and comprehensive income and cash flows for each of the three years in the period ended December 31, 2017 , are as follows: December 31, (Dollar amounts in thousands) 2017 2016 ASSETS Cash deposits in affiliated banks $ 3,198 $ 2,765 Investments in subsidiaries 414,839 416,024 Land and headquarters building, net 5,193 5,388 Other — — Total Assets $ 423,230 $ 424,177 LIABILITIES AND SHAREHOLDERS' EQUITY Liabilities Dividends payable $ 6,234 $ 6,104 Other liabilities 3,427 3,678 TOTAL LIABILITIES 9,661 9,782 Shareholders' Equity 413,569 414,395 TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY $ 423,230 $ 424,177 CONDENSED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME Years Ended December 31, (Dollar amounts in thousands) 2017 2016 2015 Dividends from subsidiaries $ 30,814 $ 31,781 $ 19,397 Other income 720 722 795 Other operating expenses (2,647 ) (2,581 ) (2,314 ) Income before income taxes and equity in undistributed earnings of subsidiaries 28,887 29,922 17,878 Income tax benefit 889 821 815 Income before equity in undistributed earnings of subsidiaries 29,776 30,743 18,693 Equity in undistributed earnings of subsidiaries (645 ) 7,670 11,503 Net income $ 29,131 $ 38,413 $ 30,196 Comprehensive income $ 28,591 $ 33,650 $ 35,324 CONDENSED STATEMENTS OF CASH FLOWS Years Ended December 31, (Dollar amounts in thousands) 2017 2016 2015 CASH FLOWS FROM OPERATING ACTIVITIES: Net Income $ 29,131 $ 38,413 $ 30,196 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 195 200 203 Equity in undistributed earnings 645 (7,670 ) (11,503 ) Contribution of shares to ESOP 1,062 1,361 1,294 Restricted stock compensation 706 684 684 Increase (decrease) in other liabilities (247 ) (262 ) (1,524 ) (Increase) decrease in other assets — 12 188 NET CASH FROM OPERATING ACTIVITIES 31,492 32,738 19,538 CASH FLOWS FROM INVESTING ACTIVITIES: Purchase of furniture and fixtures — — (65 ) NET CASH FROM INVESTING ACTIVITIES — — (65 ) CASH FLOWS FROM FINANCING ACTIVITIES: Purchase of treasury stock (503 ) (19,396 ) (8,698 ) Dividends paid (30,556 ) (12,359 ) (12,632 ) NET CASH FROM FINANCING ACTIVITES (31,059 ) (31,755 ) (21,330 ) NET (DECREASE) INCREASE IN CASH 433 983 (1,857 ) CASH, BEGINNING OF YEAR 2,765 1,782 3,639 CASH, END OF YEAR $ 3,198 $ 2,765 $ 1,782 Supplemental disclosures of cash flow information: Cash paid during the year for: Interest $ — $ — $ — Income taxes $ 11,158 $ 18,739 $ 12,869

BUSINESS AND SIGNIFICANT ACCO27

BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES: (Policies)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Share Based Compensation [Policy Text Block]	Stock based compensation: Compensation cost is recognized for restricted stock awards and units issued to employees based on the fair value of these awards at the date of grant. Market price of the Corporation’s common stock at the date of grant is used for restricted stock awards. Compensation expense is recognized over the requisite service period.
Organization	Organization: The consolidated financial statements of First Financial Corporation and its subsidiaries (the Corporation) include the parent company and its wholly-owned subsidiaries, First Financial Bank, N.A. headquartered in Vigo County, Indiana, The Morris Plan Company of Terre Haute (Morris Plan), First Chanticleer Corporation, a property rental entity headquartered in Terre Haute, Indiana, and FFB Risk Management Co., Inc., a captive insurance subsidiary headquartered in Las Vegas, Nevada. Inter-company transactions and balances have been eliminated.
Use of Estimates	Use of Estimates: To prepare financial statements in conformity with U.S. generally accepted accounting principles, management makes estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in the financial statements and disclosures provided, and actual results could differ.
Cash Flows	Cash Flows : Cash and cash equivalents include cash and demand deposits with other financial institutions. Net cash flows are reported for customer loan and deposit transactions and short-term borrowings.
Securities	Securities : The Corporation classifies all securities as "available for sale." Securities are classified as available for sale when they might be sold before maturity. Securities available for sale are carried at fair value with unrealized holdings gains and losses, net of taxes, reported in other comprehensive income within shareholders' equity. Interest income includes amortization of purchase premium or discount. Premiums and discounts are amortized on the level yield method without anticipating prepayments. Mortgage-backed securities are amortized over the expected life. Realized gains and losses on sales are based on the amortized cost of the security sold. Management evaluates securities for other-than temporary impairment (OTTI) at least on a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation.
Loans	Loans: Loans that management has the intent and ability to hold for the foreseeable future until maturity or pay-off are reported at the principal balance outstanding, net of unearned interest, purchase premiums and discounts, deferred loan fees and costs, and allowance for loan losses. Loans held for sale are reported at the lower of cost or fair value, on an aggregate basis. Interest income is accrued on the unpaid principal balance and includes amortization of net deferred loan fees and costs over the loan term without anticipating prepayments. The recorded investment in loans includes accrued interest receivable and net deferred loan fees and costs. Interest income is not reported when full loan repayment is in doubt, typically when the loan is impaired or payments are significantly past due. Past-due status is based on the contractual terms of the loan. All interest accrued but not received for loans placed on non-accrual is reversed against interest income. Interest received on such loans is accounted for on the cash-basis or cost-recovery method, until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. In all cases, loans are placed on non-accrual or charged-off if collection of principal or interest is considered doubtful. The above policies are consistent for all segments of loans.
Certain Purchased Loans	Certain Purchased Loans: The Corporation purchases individual loans and groups of loans, some of which have shown evidence of credit deterioration since origination. These purchased loans are recorded at the amount paid, such that there is no carryover of the seller's allowance for loan losses. After acquisition, losses are recognized by an increase in the allowance for loan losses. Such purchased loans are accounted for individually. The Corporation estimates the amount and timing of expected cash flows for each purchased loan, and the expected cash flows in excess of amount paid are recorded as interest income over the remaining life of the loan (accretable yield). The excess of the loan's contractual principal and interest over expected cash flows is not recorded (nonaccretable difference). Over the life of the loan, expected cash flows continue to be estimated. If the present value of expected cash flows is less than the carrying amount, a provision for loan loss is recorded. If the present value of expected cash flows is greater than the carrying amount, it is recognized as part of future interest income.
Concentration of Credit Risk	Concentration of Credit Risk: Most of the Corporation's business activity is with customers located within west central Indiana and east central Illinois. Therefore, the Corporation's exposure to credit risk is significantly affected by changes in the economy of this area. A major economic downturn in this area would have a negative effect on the Corporation's loan portfolio.
Allowance for Loan Losses	Allowance for Loan Losses: The allowance for loan losses is a valuation allowance for probable incurred credit losses. Loan losses are charged against the allowance when management believes the uncollectibility of a loan balance is confirmed. Subsequent recoveries, if any, are credited to the allowance. Management estimates the allowance balance required using past loan loss experience, the nature and volume of the portfolio, information about specific borrower situations and estimated collateral values, economic conditions and other factors. Allocations of the allowance may be made for specific loans, but the entire allowance is available for any loan that, in management's judgment, should be charged off. The allowance consists of specific and general components. The specific component relates to loans that are individually classified as impaired. The general component covers non-classified loans as well as non-impaired classified loans and is based on historical loss experience adjusted for current factors. A loan is impaired when full payment under the loan terms is not expected. Loans for which the terms have been modified, and for which the borrower is experiencing financial difficulties, are considered troubled debt restructurings and classified as impaired. Impairment is evaluated in total for smaller-balance loans of similar nature such as residential mortgages and consumer loans, and on an individual basis for other loans. If a loan is impaired, a portion of the allowance is allocated so that the loan is reported, net, at the present value of estimated future cash flows, using the loan's existing rate, or at the fair value of collateral if repayment is expected solely from the collateral. Large groups of smaller balance homogeneous loans, such as consumer and residential real estate loans, are collectively evaluated for impairment and, accordingly, they are not separately identified for impairment disclosures. The general component covers non-classified loans as well as non-impaired classified loans and is based on historical loss experience adjusted for current factors. The historical loss experience is based on the actual loss history experienced over the most recent four years. This actual loss experience is supplemented with other current factors based on the risks present for each portfolio segment. These current factors include consideration of the following: levels of and trends in delinquent, classified, and impaired loans; levels of and trends in charge-offs and recoveries; national and local economic trends and conditions; changes in lending policies and procedures; trends in volume and terms of loans; experience, ability, and depth of lending management and other relevant staff; credit concentrations; value of underlying collateral for collateral dependent loans; and other external factors such as competition and legal and regulatory requirements. The following portfolio segments have been identified: commercial loans, residential loans and consumer loans. A characteristic of the commercial loan segment is that the loans are for business purchases. A characteristic of the residential loan segment is that the loans are secured by residential properties. A characteristic of the consumer loan segment is that the loans are for automobiles and other consumer purchases. Commercial loans are generally well secured, which mitigates the risk of loss and has contributed to the low historical loss rate. However, concentrations in commercial real estate, along with the potential impact of rising interest rates to commercial real estate, raises the risk of loss on commercial loans. For these reasons, commercial loans have the highest adjustment to the historical loss rate. Continued weakness in local economic conditions along with declining auto values resulted in consumer loans having the next highest level of adjustment to the historical loss rate. The residential loan portfolio segment had the lowest level of adjustment to the historical loss rate. Troubled debt restructurings are separately identified for impairment disclosures and are measured at the present value of estimated future cash flows using the loan's effective rate at inception. If a troubled debt restructuring is considered to be a collateral dependent loan, the loan is reported, net, at the fair value of the collateral. For troubled debt restructurings that subsequently default, the Corporation determines the amount of reserve in accordance with the accounting policy for the allowance for loan losses.
FDIC Indemnification Asset	FDIC Indemnification Asset: The FDIC indemnification asset results from the loss share agreements in the 2009 FDIC-assisted transaction. The asset is measured separately from the related covered assets as they are not contractually embedded in the assets and are not transferable with the assets should the Corporation choose to dispose of them. It represents the acquisition date fair value of expected reimbursements from the FDIC which was determined to be $12.1 million . Pursuant to the terms of the loss sharing agreement, covered loans and other real estate are subject to a stated loss threshold whereby the FDIC will reimburse the Corporation for up to 95% of losses incurred. These expected reimbursements do not include reimbursable amounts related to future covered expenditures. These cash flows are discounted to reflect a metric of uncertainty of the timing and receipt of the loss sharing reimbursement from the FDIC. This asset decreases when losses are realized and claims are paid by the FDIC or when customers repay their loans in full and expected losses do not occur. This asset also increases when estimated future losses increase. When estimated future losses increase, the Corporation records a provision for loan losses and increases its allowance for loan losses accordingly. The related increase or decrease in the FDIC indemnification asset is recorded as an (increase) or offset to the provision for loan losses.
Foreclosed Assets	Foreclosed Assets: Assets acquired through or instead of loan foreclosures are initially recorded at fair value less estimated selling costs when acquired, establishing a new cost basis. Physical possession of residential real estate property collateralizing a consumer mortgage loan occurs when legal title is obtained upon completion of foreclosure or when the borrower conveys all interest in the property to satisfy the loan through completion of a deed in lieu of foreclosure or similar legal agreement. These assets are subsequently accounted for at lower of cost or fair value less estimated costs to sell. If fair value declines, a valuation allowance is recorded through expense. Costs after acquisition are expensed.
Premises and Equipment	Premises and Equipment: Land is carried at cost. Premises and equipment are stated at cost less accumulated depreciation. Depreciation is computed over the useful lives of the assets, which range from 3 to 5 years for furniture and equipment and 33 to 39 years for buildings and leasehold improvements.
Restricted Stock	Restricted Stock: Restricted stock includes Federal Home Loan Bank (FHLB) of Indianapolis and Federal Reserve stock. This restricted stock is carried at cost and periodically evaluated for impairment. Because this stock is viewed as a long-term investment, impairment is based on ultimate recovery of par value. Both cash and stock dividends are reported as income.
Servicing Rights	Servicing Rights: Servicing rights are recognized separately when they are acquired through sales of loans. When mortgage loans are sold, servicing rights are initially recorded at fair value with the income statement effect recorded in gains on sales of loans. Fair value is based on market prices for comparable mortgage servicing contracts, when available, or alternatively, is based on third-party valuations that incorporate assumptions that market participants would use in estimating future net servicing income, such as the cost to service, the discount rate, ancillary income, prepayment speeds and default rates and losses. All classes of servicing assets are subsequently measured using the amortization method, which requires servicing rights to be amortized into non-interest income in proportion to, and over the period of, the estimated future net servicing income of the underlying loans. Servicing assets are evaluated for impairment based upon the fair value of the rights as compared to carrying amount. Impairment is determined by stratifying rights into groupings based on predominant risk characteristics, such as interest rate, loan type and investor type. Impairment is recognized through a valuation allowance for an individual grouping, to the extent that fair value is less than the carrying amount. If the Corporation later determines that all or a portion of the impairment no longer exists for a particular grouping, a reduction of the allowance may be recorded as an increase to income. Changes in valuation allowances are reported with Other Service Charges and Fees on the income statement. The fair values of servicing rights are subject to significant fluctuations as a result of changes in estimated and actual prepayment speeds and default rates and losses. Servicing fee income, which is included in Other Service Charges and Fees on the income statement, is for fees earned for servicing loans. The fees are based on a contractual percentage of the outstanding principal or a fixed amount per loan and are recorded as income when earned. The amortization of mortgage servicing rights is netted against loan servicing fee income.
Transfers of Financial Assets	Transfers of Financial Assets: Transfers of financial assets are accounted for as sales, when control over the assets has been relinquished. Control over transferred assets is deemed to be surrendered when the assets have been isolated from the Corporation, the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets, and the Corporation does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity.
Life Insurance Corporate Or Bank Owned Policy [Text Block]	Bank-Owned Life Insurance: The Corporation has purchased life insurance policies on certain key executives. Bank-owned life insurance is recorded at its cash surrender value, or the amount that can be realized. Income on the investments in life insurance is included in other interest income.
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets: Goodwill resulting from business combinations prior to January 1, 2009 represents the excess of the purchase price over the fair value of the net assets of businesses acquired. Goodwill resulting from business combinations after January 1, 2009 represents the future economic benefits arising from other assets acquired that are not individually identified and separately recognized. Goodwill and intangible assets acquired in a purchase business combination and determined to have an indefinite useful life are not amortized, but tested for impairment at least annually. The Corporation has selected December 31 as the date to perform the annual impairment test. Intangible assets with definite useful lives are amortized over their estimated useful lives to their estimated residual values. Goodwill is the only intangible asset with an indefinite life on our balance sheet. Other intangible assets consist of core deposit assets arising from the whole bank and branch acquisitions. They are initially measured at fair value and then are amortized on an accelerated basis over their estimated useful lives, which are 10 and 12 years, respectively.
Long-Term Assets	Long-Term Assets: Premises and equipment and other long-term assets are reviewed for impairment when events indicate their carrying amount may not be recoverable from future undiscounted cash flows. If impaired, the assets are recorded at fair value.
Benefit Plans	Benefit Plans: Pension expense is the net of service and interest cost, return on plan assets and amortization of gains and losses not immediately recognized. The amount contributed is determined by a formula as decided by the Board of Directors. Deferred compensation and supplemental retirement plan expense allocates the benefits over years of service.
Employee Stock Ownership Plan	Employee Stock Ownership Plan: Shares of treasury stock are issued to the ESOP and compensation expense is recognized based upon the total market price of shares when contributed.
Deferred Compensation Plan	Deferred Compensation Plan: Prior to 2011, a deferred compensation plan covered all directors. Under the plan, the Corporation pays each director, or their beneficiary, the amount of fees deferred plus interest over 10 years, beginning when the director achieves age 65 . A liability is accrued for the obligation under these plans.
Incentive Plans	Incentive Plans: A long-term incentive plan established in 2000 provides for the payment of incentive rewards as a 15 -year annuity to all directors and certain key officers. That plan was in place through December 31, 2009, and compensation expense is recognized over the service period. Payments under the plan generally did not begin until the earlier of January 1, 2015, or the January 1 immediately following the year in which the participant reaches age 65 . There was no compensation expense related to this plan for 2017 , 2016 and 2015 . There is a liability of $11.4 million and $12.3 million as of year-end 2017 and 2016 . In 2011 the Corporation adopted the 2011 Short-term Incentive Plan and the 2011 Omnibus Equity Incentive Plan designed to reward key officers based on certain performance measures.
Income Taxes	Income Taxes: Income tax expense is the total of the current year income tax due or refundable and the change in deferred tax assets and liabilities. Deferred tax assets and liabilities are the expected future tax amounts for the temporary differences between carrying amounts and tax bases of assets and liabilities, computed using enacted tax rates. A valuation allowance, if needed, reduces deferred tax assets to the amount expected to be realized. A tax position is recognized as a benefit only if it is "more likely than not" that the tax position would be sustained in a tax examination, with a tax examination being presumed to occur. The amount recognized is the largest amount of tax benefit that is greater than 50% likely of being realized on examination. For tax positions not meeting the "more likely than not" test, no tax benefit is recorded. The Corporation recognizes interest and/or penalties related to income tax matters in income tax expense.
Loan Commitments and Related Financial Instruments	Loan Commitments and Related Financial Instruments: Financial instruments include credit instruments, such as commitments to make loans and standby letters of credit, issued to meet customer financing needs. The face amount for these items represents the exposure to loss, before considering customer collateral or ability to repay. Such financial instruments are recorded when they are funded.
Earnings Per Share	Earnings Per Share: Earnings per common share is net income divided by the weighted average number of common shares outstanding during the period. The Corporation does not have any potentially dilutive securities as the restricted stock awards are included in outstanding shares.. Earnings and dividends per share are restated for stock splits and dividends through the date of issue of the financial statements.
Comprehensive Income	Comprehensive Income: Comprehensive income consists of net income and other comprehensive income. Other comprehensive income includes unrealized gains and losses on securities available for sale and changes in the funded status of the retirement plans, net of taxes, which are also recognized as separate components of equity.
Loss Contingencies	Loss Contingencies: Loss contingencies, including claims and legal actions arising in the ordinary course of business, are recorded as liabilities when the likelihood of loss is probable and an amount of range of loss can be reasonably estimated. Management does not believe there are currently such matters that will have a material effect on the financial statements.
Dividend Restriction	Dividend Restriction: Banking regulations require maintaining certain capital levels and may limit the dividends paid by the bank to the holding company or by the holding company to shareholders.
Fair Value of Financial Instruments	Fair Value of Financial Instruments: Fair values of financial instruments are estimated using relevant market information and other assumptions, as more fully disclosed in a separate note. Fair value estimates involve uncertainties and matters of significant judgment regarding interest rates, credit risk, prepayments and other factors, especially in the absence of broad markets for particular items. Changes in assumptions or market conditions could significantly affect the estimates.
Operating Segment	Operating Segment: While the Corporation's chief decision-makers monitor the revenue streams of the various products and services, the operating results of significant segments are similar and operations are managed and financial performance is evaluated on a corporate-wide basis. Accordingly, all of the Corporation's financial service operations are considered by management to be aggregated in one reportable operating segment, which is banking.
Adoption of New Accounting Standards	: In May 2014, the FASB issued an update (ASU No. 2014-09, Revenue from Contracts with Customers) creating FASB Topic 606, Revenue from Contracts with Customers. The guidance in this update affects any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of nonfinancial assets unless those contracts are within the scope of other standards (for example, insurance contracts or lease contracts). The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. To achieve that core principle, an entity should apply the following steps: (i) identify the contract(s) with a customer, (ii) identify the performance obligations in the contract, (iii) determine the transaction price, (iv) allocate the transaction price to the performance obligations in the contract and (v) recognize revenue when (or as) the entity satisfies a performance obligation. ASU 2015-4 “Revenue from Contracts with Customers - Deferral of the Effective Date” deferred the effective date of ASU 2014-09 by one year and as a result, the new standard will be effective the first quarter of 2018. The Corporation’s revenue is comprised of net interest income on financial assets and financial liabilities, which is explicitly excluded from the scope of ASU 2014-09, and non-interest income. Based on the Corporation’s analysis of the effect of the new standard on its recurring revenue streams, the Corporation did not expect and did not experience an impact on the Corporation’s financial statements upon adoption in the first quarter of 2018. No adjustments to opening retained earnings was recorded on January 1, 2018. In January 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities, amending ASU Subtopic 825-10. The amendments in this update make targeted improvements to generally accepted accounting principles (GAAP) as follows: 1) Require equity investments to be measured at fair value with changes in fair value recognized in net income.; 2) Simplify the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment.; 3) Eliminate the requirement to disclose the fair value of financial instruments measured at amortized cost for entities that are not public business entities.; 4) Eliminate the requirement for public business entities to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet.; 5) Require public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes.; 6) Require an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments.; 7) Require separate presentation of financial assets and financial liabilities by measurement category and form of financial asset on the balance sheet or the accompanying notes to the financial statements.; and 8) Clarify that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available-for-sale securities in combination with the entity’s other deferred tax assets. The amendments in this update are effective for fiscal years beginning after December 15, 2017. ASU 2016-1 became effective on January 1, 2018 and did not have a significant impact on the Corporation’s financial statements. However, the fair value disclosures for our loan portfolio will consider the exit price. In February 2016, the FASB issued ASU No. 2016-02, "Leases." Under the new guidance, lessees will be required to recognize the following for all leases (with the exception of short-term leases): 1) a lease liability, which is the present value of a lessee's obligation to make lease payments, and 2) a right-of-use asset, which is an asset that represents the lessee's right to use, or control the use of, a specified asset for the lease term. Lessor accounting under the new guidance remains largely unchanged as it is substantially equivalent to existing guidance for sales-type leases, direct financing leases, and operating leases. Leveraged leases have been eliminated, although lessors can continue to account for existing leveraged leases using the current accounting guidance. Other limited changes were made to align lessor accounting with the lessee accounting model and the new revenue recognition standard. All entities will classify leases to determine how to recognize lease-related revenue and expense. Quantitative and qualitative disclosures will be required by lessees and lessors to meet the objective of enabling users of financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases. The intention is to require enough information to supplement the amounts recorded in the financial statements so that users can understand more about the nature of an entity’s leasing activities. ASU No. 2016-02 is effective for interim and annual reporting periods beginning after December 15, 2018; early adoption is permitted. All entities are required to use a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements. They have the option to use certain relief; full retrospective application is prohibited. The Corporation continues to evaluate the provision of the new lease standard but, due to the small number of lease agreements presently in effect for the Corporation, does not expect the new guidance will have a significant impact on the Corporation’s financial statements. In June 2016 ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (ASU 2016-13), was issued and requires entities to use a current expected credit loss ("CECL") model which is a new impairment model based on expected losses rather than incurred losses. Under this model an entity would recognize an impairment allowance equal to its current estimate of all contractual cash flows that the entity does not expect to collect from financial assets measured at amortized cost. The entity's estimate would consider relevant information about past events, current conditions, and reasonable and supportable forecasts, which will result in recognition of lifetime expected credit losses upon loan origination. ASU 2016-13 is effective for interim and annual reporting periods beginning after December 15, 2019, with early adoption permitted for annual reporting periods beginning after December 15, 2018. Management has initiated an implementation committee to assist in assessing data and system needs for the new standard. Management anticipates the effect will be an increase to the allowance for loan losses upon adoption, however, the overall increase is uncertain at this time. In August of 2016 ASU 2016-15 "Statement of Cash Flows (Topic 230)" ("ASU 2016-15") was issued and is intended to reduce the diversity in practice around how certain transactions are classified within the statement of cash flows. ASU 2016-15 is effective for public companies for annual periods beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption is permitted with retrospective application. ASU 2016-15 became effective on January 1, 2018 and did not have a significant impact on the Corporation’s accounting and disclosures. In January 2017, the FASB issued ASU No. 2017-04, “Simplifying the Test for Goodwill Impairment.” The guidance removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. Goodwill impairment will now be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. All other goodwill impairment guidance will remain largely unchanged. ASU No. 2017-04 is effective for interim and annual reporting periods beginning after December 15, 2019, applied prospectively. Early adoption is permitted for any impairment tests performed after January 1, 2017. The Corporation is assessing ASU 2017-04 but does not expect a significant impact on its accounting and disclosures. In March 2017, the FASB issued ASU No. 2017-07, “Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost.” Under the new guidance, employers will present the service cost component of the net periodic benefit cost in the same income statement line item (e.g., Salaries and Benefits) as other employee compensation costs arising from services rendered during the period. In addition, only the service cost component will be eligible for capitalization in assets. Employers will present the other components separately (e.g., Other Noninterest Expense) from the line item that includes the service cost. ASU No. 2017-07 is effective for interim and annual reporting periods beginning after December 15, 2017. Early adoption is permitted, however, the Corporation has decided not to early adopt. Employers will apply the guidance on the presentation of the components of net periodic benefit cost in the income statement retrospectively. The guidance limiting the capitalization of net periodic benefit cost in assets to the service cost component will be applied prospectively. ASU 2017-07 became effective on January 1, 2018 and did not have a significant impact on the Corporation’s accounting and disclosures. In May 2017, the FASB issued ASU 2017-09, Compensation-Stock Compensation (Topic 718): Scope of Modification”. ASU 2017-09 was issued to provide clarity and reduce both 1) diversity in practice and 2) cost and complexity when applying the guidance in Topic 718, Compensation - Stock Compensation, to a change to the terms or conditions of a share-based payment award. Diversity in practice has arisen in part because some entities apply modification accounting under Topic 718 for modifications to terms and conditions that they consider substantive, but do not when they conclude that particular modifications are not substantive. Others apply modification accounting for any change to an award, except for changes that they consider purely administrative in nature. Still others apply modification accounting when a change to an award changes the fair value, the vesting, or the classification of the award. In practice, it appears that the evaluation of a change in fair value, vesting, or classification may be used to evaluate whether a change is substantive. ASU 2017-09 include guidance on determining which changes to the terms and conditions of share-based payment awards require an entity to apply modification accounting under Topic 718. ASU 2017-09 is effective for the annual period, and interim periods within the annual periods, beginning after December 15, 2017. Early adoption is permitted, including adoption in any interim period for: (a) public business entities for reporting periods for which financial statements have not yet been issued, and (b) all other entities for reporting periods for which financial statements have not yet been made available for issuance. ASU 2017-09 should be applied prospectively to an award modified on or after the adoption date.

FAIR VALUES OF FINANCIAL INST28

FAIR VALUES OF FINANCIAL INSTRUMENTS: (Tables)	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Schedule of assets and liabilities measured at fair value	The fair value of derivatives is based on valuation models using observable market data as of the measurement date (Level 2 inputs). December 31, 2017 Fair Value Measurement Using (Dollar amounts in thousands) Level 1 Level 2 Level 3 Carrying Value U.S. Government entity mortgage-backed securities $ — $ 13,695 $ — $ 13,695 Mortgage-backed securities, residential — 215,338 — 215,338 Mortgage-backed securities, commercial — 1 — 1 Collateralized mortgage obligations — 339,670 — 339,670 State and municipal obligations — 227,942 3,680 231,622 Collateralized debt obligations — — 14,605 14,605 TOTAL $ — $ 796,646 $ 18,285 $ 814,931 Derivative Assets $ 298 Derivative Liabilities (298 ) December 31, 2016 Fair Value Measurement Using (Dollar amounts in thousands) Level 1 Level 2 Level 3 Carrying Value U.S. Government entity mortgage-backed securities $ — $ 13,249 $ — $ 13,249 Mortgage-backed securities, residential — 261,005 — 261,005 Mortgage-backed securities, commercial — 4 — 4 Collateralized mortgage obligations — 348,176 — 348,176 State and municipal obligations — 214,713 4,210 218,923 Collateralized debt obligations — — 12,368 12,368 TOTAL $ — $ 837,147 $ 16,578 $ 853,725 Derivative Assets $ 653 Derivative Liabilities (653 )
Roll forward of financial instruments having fair value measurements using significant unobservable inputs (Level 3)	The table below presents a reconciliation and income statement classification of gains and losses for all assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the twelve months ended December 31, 2017 and 2016 . Fair Value Measurements Using Significant Unobservable Inputs (Level 3) December 31, 2017 State and municipal obligations Collateralized debt obligations Total Beginning balance, January 1 $ 4,210 $ 12,368 $ 16,578 Total realized/unrealized gains or losses Included in earnings — — — Included in other comprehensive income — 2,773 2,773 Purchases — — — Settlements (530 ) (536 ) (1,066 ) Ending balance, December 31 $ 3,680 $ 14,605 $ 18,285 Fair Value Measurements Using Significant Unobservable Inputs (Level 3) December 31, 2016 State and municipal obligations Collateralized debt obligations Total Beginning balance, January 1 $ 4,725 $ 14,875 $ 19,600 Total realized/unrealized gains or losses Included in earnings — — — Included in other comprehensive income — (2,066 ) (2,066 ) Transfers — — — Settlements (515 ) (441 ) (956 ) Ending balance, December 31 $ 4,210 $ 12,368 $ 16,578
Quantitative information about recurring and non-recurring Level 3	The following tables present quantitative information about recurring and non-recurring Level 3 fair value measurements at December 31, 2017 and 2016 . 2017 Fair Value Valuation Technique(s) Unobservable Input(s) Range State and municipal obligations $ 3,680 Discounted cash flow Discount rate 2.30%-5.45% Probability of default — % Other real estate $ 1,880 Sales comparison/income approach Discount rate for age of appraisal and market conditions 5.00%-20.00% Impaired Loans $ 3,882 Sales comparison/income approach Discount rate for age of appraisal and market conditions 0.00%-50.00% 2016 Fair Value Valuation Technique(s) Unobservable Input(s) Range State and municipal obligations $ 4,210 Discounted cash flow Discount rate 3.05%-5.50% Probability of default — % Other real estate $ 2,531 Sales comparison/income approach Discount rate for age of appraisal and market conditions 5.00%-20.00% Impaired Loans $ 1,387 Sales comparison/income approach Discount rate for age of appraisal and market conditions 0.00%-50.00%
Schedule of loans identified as impaired by class of loans	The following tables present impaired collateral dependent loans measured at fair value on a non-recurring basis by class of loans as of December 31, 2017 and 2016 . December 31, 2017 (Dollar amounts in thousands) Carrying Value Allowance for Loan Losses Allocated Fair Value Commercial Commercial & Industrial $ 493 $ 146 $ 347 Farmland 3,035 268 2,767 Non Farm, Non Residential — — — Agriculture 537 205 332 All Other Commercial — — — Residential First Liens 442 6 436 Home Equity — — — Junior Liens — — — Multifamily — — — All Other Residential — — — Consumer Motor Vehicle — — — All Other Consumer — — — TOTAL $ 4,507 $ 625 $ 3,882 December 31, 2016 (Dollar amounts in thousands) Carrying Value Allowance for Loan Losses Allocated Fair Value Commercial Commercial & Industrial $ 537 $ 36 $ 501 Farmland — — — Non Farm, Non Residential 657 206 451 Agriculture — — — All Other Commercial — — — Residential First Liens 524 89 435 Home Equity — — — Junior Liens — — — Multifamily — — — All Other Residential — — — Consumer Motor Vehicle — — — All Other Consumer — — — TOTAL $ 1,718 $ 331 $ 1,387
Schedule of carrying amount and estimated fair value of financial instruments	The carrying amount and estimated fair value of assets and liabilities are presented in the table below and were determined based on the above assumptions: December 31, 2017 Carrying Fair Value (Dollar amounts in thousands) Value Level 1 Level 2 Level 3 Total Cash and due from banks $ 74,107 $ 20,682 $ 53,425 $ — $ 74,107 Securities available-for-sale 814,931 — 796,646 18,285 814,931 Restricted stock 10,379 n/a n/a n/a n/a Loans, net 1,886,852 — — 1,878,166 1,878,166 Accrued interest receivable 12,913 — 3,596 9,317 12,913 Deposits (2,458,653 ) — (2,456,900 ) — (2,456,900 ) Short-term borrowings (57,686 ) — (57,686 ) — (57,686 ) Federal Home Loan Bank advances — — — — — Accrued interest payable (372 ) — (372 ) — (372 ) December 31, 2016 Carrying Fair Value (Dollar amounts in thousands) Value Level 1 Level 2 Level 3 Total Cash and due from banks $ 75,012 $ 21,047 $ 53,965 $ — $ 75,012 Federal funds sold 6,952 — 6,952 — 6,952 Securities available-for-sale 853,725 — 837,147 16,578 853,725 Restricted stock 10,359 n/a n/a n/a n/a Loans, net 1,820,407 — — 1,854,046 1,854,046 Accrued interest receivable 12,311 — 3,340 8,971 12,311 Deposits (2,428,526 ) — (2,414,555 ) — (2,414,555 ) Short-term borrowings (80,989 ) — (80,989 ) — (80,989 ) Federal Home Loan Bank advances (132 ) — (137 ) — (137 ) Accrued interest payable (363 ) — (363 ) — (363 )

SECURITIES_ (Tables)

SECURITIES: (Tables)	12 Months Ended
	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Amortized cost and fair value of investments classified as available-for-sale	The fair value of securities available-for-sale and related gross unrealized gains and losses recognized in accumulated other comprehensive income were as follows: December 31, 2017 Amortized Unrealized (Dollar amounts in thousands) Cost Gains Losses Fair Value U.S. Government entity mortgage-backed securities $ 13,989 $ 24 $ (318 ) $ 13,695 Mortgage-backed securities, residential 215,079 2,071 (1,812 ) 215,338 Mortgage-backed securities, commercial 1 — — 1 Collateralized mortgage obligations 346,005 370 (6,705 ) 339,670 State and municipal obligations 227,651 4,671 (700 ) 231,622 Collateralized debt obligations 8,644 5,961 — 14,605 TOTAL $ 811,369 $ 13,097 $ (9,535 ) $ 814,931 December 31, 2016 Amortized Unrealized (Dollar amounts in thousands) Cost Gains Losses Fair Value U.S. Government entity mortgage-backed securities $ 13,594 $ 32 $ (377 ) $ 13,249 Mortgage-backed securities, residential 261,878 3,200 (4,073 ) 261,005 Mortgage-backed securities, commercial 4 — — 4 Collateralized mortgage obligations 353,499 1,021 (6,344 ) 348,176 State and municipal obligations 217,365 3,954 (2,396 ) 218,923 Collateralized debt obligations 9,181 4,411 (1,224 ) 12,368 TOTAL $ 855,521 $ 12,618 $ (14,414 ) $ 853,725
Schedule Of Gross Gain Or Loss realised	Below is a summary of the gross gains and losses realized by the Corporation on investment sales and calls during the years ended December 31, 2017 , 2016 and 2015 , respectively. (Dollar amounts in thousands) 2017 2016 2015 Proceeds $ 15,348 $ 8,160 $ 3,735 Gross gains 185 39 23 Gross losses (126 ) (5 ) (6 )
Schedule of contractual maturities of debt securities	Contractual maturities of debt securities at year-end 2017 were as follows. Securities not due at a single maturity or with no maturity date, primarily mortgage-backed and collateralized mortgage obligations, are shown separately. Available-for-Sale Amortized Fair (Dollar amounts in thousands) Cost Value Due in one year or less $ 4,683 $ 4,701 Due after one but within five years 30,765 31,338 Due after five but within ten years 83,483 85,726 Due after ten years 131,353 138,157 250,284 259,922 Mortgage-backed securities and collateralized mortgage obligations 561,085 555,009 TOTAL $ 811,369 $ 814,931
Schedule of gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in continuous unrealized loss position	The following tables show the securities' gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in continuous unrealized loss position, at December 31, 2017 and 2016 . December 31, 2017 Less Than 12 Months More Than 12 Months Total Unrealized Unrealized Unrealized (Dollar amounts in thousands) Fair Value Losses Fair Value Losses Fair Value Losses U.S. Government entity mortgage-backed securities $ 9,321 $ (86 ) 3,538 (232 ) $ 12,859 $ (318 ) Mortgage-backed securities, residential 79,918 (425 ) 53,815 (1,387 ) 133,733 (1,812 ) Collateralized mortgage obligations 150,182 (1,418 ) 146,750 (5,287 ) 296,932 (6,705 ) State and municipal obligations 27,347 (183 ) 18,660 (517 ) 46,007 (700 ) Total temporarily impaired securities $ 266,768 $ (2,112 ) $ 222,763 $ (7,423 ) $ 489,531 $ (9,535 ) December 31, 2016 Less Than 12 Months More Than 12 Months Total Unrealized Unrealized Unrealized (Dollar amounts in thousands) Fair Value Losses Fair Value Losses Fair Value Losses U.S. Government entity mortgage-backed securities $ 12,224 $ (377 ) $ — $ — $ 12,224 $ (377 ) Mortgage-backed securities, residential 202,248 (4,072 ) 152 (1 ) 202,400 (4,073 ) Collateralized mortgage obligations 169,717 (3,086 ) 79,999 (3,258 ) 249,716 (6,344 ) State and municipal obligations 72,852 (2,396 ) — — 72,852 (2,396 ) Collateralized debt obligations 7,561 (1,224 ) — — 7,561 (1,224 ) Total temporarily impaired securities $ 464,602 $ (11,155 ) $ 80,151 $ (3,259 ) $ 544,753 $ (14,414 )
Rollforward of the credit losses recognized in earnings	The table below presents a rollforward of the credit losses recognized in earnings for the years presented: (Dollar amounts in thousands) 2017 2016 2015 Beginning balance, January 1, $ 13,974 $ 13,995 $ 14,050 Amounts related to credit loss for which other-than- temporary impairment was not previously recognized — — — Reductions for securities called during the period (6,842 ) Reductions for increase in cash flows expected to be collected that are recognized over the remaining life of the security — (21 ) (55 ) Increases to the amount related to the credit loss for which other- than-temporary impairment was previously recognized — — — Ending balance, December 31, $ 7,132 $ 13,974 $ 13,995

LOANS_ (Tables)

LOANS: (Tables)	12 Months Ended
	Dec. 31, 2017
Loans Receivable, Net [Abstract]
Summary of Loans	Loans are summarized as follows: December 31, (Dollar amounts in thousands) 2017 2016 Commercial $ 1,139,490 $ 1,106,182 Residential 436,143 423,911 Consumer 327,976 305,881 Total gross loans 1,903,609 1,835,974 Deferred costs, net 3,152 3,206 Allowance for loan losses (19,909 ) (18,773 ) TOTAL $ 1,886,852 $ 1,820,407
Capitalized Mortgage Servicing Rights	Activity for capitalized mortgage servicing rights (included in other assets) was as follows: December 31, (Dollar amounts in thousands) 2017 2016 2015 Servicing rights: Beginning of year $ 1,549 $ 1,746 $ 1,863 Additions 477 480 531 Amortized to expense (592 ) (677 ) (648 ) End of year $ 1,434 $ 1,549 $ 1,746

ACQUISITIONS AND FDIC INDEMNI31

ACQUISITIONS AND FDIC INDEMNIFICATION ASSET: (Tables)	12 Months Ended
	Dec. 31, 2017
Business Combinations [Abstract]
Schedule of carrying amount of covered assets	The carrying amount of loans accounted for in accordance with FASB ASC 310-30 at December 31, 2017 and 2016 , are shown in the following tables: 2017 (Dollar amounts in thousands) Commercial Consumer Total Beginning balance $ 3,451 $ 1,430 $ 4,881 Discount accretion — — — Disposals (1,555 ) (1,430 ) (2,985 ) ASC 310-30 Loans $ 1,896 $ — $ 1,896 2016 (Dollar amounts in thousands) Commercial Consumer Total Beginning balance $ 4,122 $ 1,480 $ 5,602 Discount accretion — — — Disposals (671 ) (50 ) (721 ) ASC 310-30 Loans $ 3,451 $ 1,430 $ 4,881

ALLOWANCE FOR LOAN LOSSES_ (Tab

ALLOWANCE FOR LOAN LOSSES: (Tables)	12 Months Ended
	Dec. 31, 2017
Allowance For Loan Losses Disclosure [Abstract]
Schedule of allowances for loan losses by portfolio segment	The following table presents the activity of the allowance for loan losses by portfolio segment for the years ended December 31, 2017 , 2016 and 2015 . Allowance for Loan Losses: December 31, 2017 (Dollar amounts in thousands) Commercial Residential Consumer Unallocated Total Beginning balance $ 9,731 $ 1,553 $ 5,767 $ 1,722 $ 18,773 Provision for loan losses 745 (179 ) 4,987 (258 ) 5,295 Loans charged -off (1,572 ) (761 ) (6,429 ) — (8,762 ) Recoveries 1,377 842 2,384 — 4,603 Ending Balance $ 10,281 $ 1,455 $ 6,709 $ 1,464 $ 19,909 Allowance for Loan Losses: December 31, 2016 (Dollar amounts in thousands) Commercial Residential Consumer Unallocated Total Beginning balance $ 11,482 $ 1,834 $ 4,945 $ 1,685 $ 19,946 Provision for loan losses (755 ) 54 3,964 37 3,300 Loans charged -off (2,659 ) (1,011 ) (5,279 ) — (8,949 ) Recoveries 1,663 676 2,137 — 4,476 Ending Balance $ 9,731 $ 1,553 $ 5,767 $ 1,722 $ 18,773 Allowance for Loan Losses: December 31, 2015 (Dollar amounts in thousands) Commercial Residential Consumer Unallocated Total Beginning balance $ 10,915 $ 1,374 $ 4,370 $ 2,180 $ 18,839 Provision for loan losses 990 874 3,331 (495 ) 4,700 Loans charged -off (2,852 ) (866 ) (4,810 ) — (8,528 ) Recoveries 2,429 452 2,054 — 4,935 Ending Balance $ 11,482 $ 1,834 $ 4,945 $ 1,685 $ 19,946
Allocation of the allowance for loan losses by portfolio segment based on the impairment method	The following tables present the allocation of the allowance for loan losses and the recorded investment in loans by portfolio segment and based on impairment method at December 31, 2017 and 2016 : Allowance for Loan Losses: December 31, 2017 (Dollar amounts in thousands) Commercial Residential Consumer Unallocated Total Individually evaluated for impairment $ 619 $ 6 $ — $ — $ 625 Collectively evaluated for impairment 9,662 1,449 6,709 1,464 19,284 Acquired with deteriorated credit quality — — — — — BALANCE AT END OF YEAR $ 10,281 $ 1,455 $ 6,709 $ 1,464 $ 19,909 Loans (Dollar amounts in thousands) Commercial Residential Consumer Total Individually evaluated for impairment $ 9,619 $ 463 $ — $ 10,082 Collectively evaluated for impairment 1,134,701 436,944 329,435 1,901,080 Acquired with deteriorated credit quality 1,860 — — 1,860 BALANCE AT END OF YEAR $ 1,146,180 $ 437,407 $ 329,435 $ 1,913,022 Allowance for Loan Losses: December 31, 2016 (Dollar amounts in thousands) Commercial Residential Consumer Unallocated Total Individually evaluated for impairment $ 242 $ 89 $ — $ — $ 331 Collectively evaluated for impairment 9,489 1,464 5,767 1,722 18,442 Acquired with deteriorated credit quality — — — — — BALANCE AT END OF YEAR $ 9,731 $ 1,553 $ 5,767 $ 1,722 $ 18,773 Loans (Dollar amounts in thousands) Commercial Residential Consumer Total Individually evaluated for impairment $ 8,051 $ 549 $ — $ 8,600 Collectively evaluated for impairment 1,101,269 423,099 307,226 1,831,594 Acquired with deteriorated credit quality 3,415 1,431 — 4,846 BALANCE AT END OF YEAR $ 1,112,735 $ 425,079 $ 307,226 $ 1,845,040
Schedule of loans individually evaluated for impairment by class of loans	The following tables present loans individually evaluated for impairment by class of loan. December 31, 2017 Allowance Cash Basis Unpaid for Loan Average Interest Interest Principal Recorded Losses Recorded Income Income Balance Investment Allocated Investment Recognized Recognized With no related allowance recorded: Commercial Commercial & Industrial $ 802 $ 802 $ — $ 971 $ — $ — Farmland 930 930 — 1,265 — — Non Farm, Non Residential 2,461 2,461 — 2,781 — — Agriculture 123 123 — 239 — — All Other Commercial 1,238 1,238 — 1,308 — — Residential First Liens 21 21 — 23 — — Home Equity — — — — — — Junior Liens — — — — — — Multifamily — — — — — — All Other Residential — — — — — — Consumer Motor Vehicle — — — — — — All Other Consumer — — — — — — With an allowance recorded: Commercial Commercial & Industrial 493 493 146 514 — — Farmland 3,035 3,035 268 669 — — Non Farm, Non Residential — — — 131 — Agriculture 738 537 205 279 — — All Other Commercial — — — — — — Residential First Liens 442 442 6 483 — — Home Equity — — — — — — Junior Liens — — — — — — Multifamily — — — — — — All Other Residential — — — — — — Consumer Motor Vehicle — — — — — — All Other Consumer — — — — — — TOTAL $ 10,283 $ 10,082 $ 625 $ 8,663 $ — $ — December 31, 2016 Allowance Cash Basis Unpaid for Loan Average Interest Interest Principal Recorded Losses Recorded Income Income Balance Investment Allocated Investment Recognized Recognized With no related allowance recorded: Commercial Commercial & Industrial $ 1,181 $ 1,181 $ — $ 981 $ — $ — Farmland 826 826 — 770 — — Non Farm, Non Residential 3,368 2,996 — 3,096 — — Agriculture 622 487 — 351 — — All Other Commercial 1,367 1,367 — 1,477 — — Residential First Liens 25 25 — 27 — — Home Equity — — — — — — Junior Liens — — — — — — Multifamily — — — — — — All Other Residential — — — — — — Consumer Motor Vehicle — — — — — — All Other Consumer — — — — — — With an allowance recorded: Commercial Commercial & Industrial 537 537 36 819 — — Farmland — — — — — — Non Farm, Non Residential 657 657 206 1,016 — Agriculture — — — 114 — — All Other Commercial — — — 45 — — Residential First Liens 524 524 89 647 — — Home Equity — — — — — — Junior Liens — — — — — — Multifamily — — — — — — All Other Residential — — — — — — Consumer Motor Vehicle — — — — — — All Other Consumer — — — — — — TOTAL $ 9,107 $ 8,600 $ 331 $ 9,343 $ — $ — December 31, 2015 Cash Basis Average Interest Interest Recorded Income Income Investment Recognized Recognized With no related allowance recorded: Commercial Commercial & Industrial $ 1,796 $ — $ — Farmland — — — Non Farm, Non Residential 2,080 — — Agriculture — — — All Other Commercial 1,175 — — Residential First Liens 18 — — Home Equity — — — Junior Liens — — — Multifamily — — — All Other Residential — — — Consumer Motor Vehicle — — — All Other Consumer — — — With an allowance recorded: Commercial Commercial & Industrial 3,463 — — Farmland — — — Non Farm, Non Residential 3,682 — Agriculture — — — All Other Commercial 483 — — Residential First Liens 460 — — Home Equity — — — Junior Liens — — Multifamily — — — All Other Residential — — — Consumer Motor Vehicle — — — All Other Consumer — — — TOTAL $ 13,157 $ — $ —
Schedule of non-performing loans	The following tables present the recorded investment in nonperforming loans by class of loans. December 31, 2017 Loans Past Troubled Debt Due Over 90 Day Still Restructured (Dollar amounts in thousands) Accruing Accrual Non-accrual Non-accrual Commercial Commercial & Industrial $ 41 $ 2 $ 212 $ 1,679 Farmland 19 — — 4,141 Non Farm, Non Residential — 56 2,440 172 Agriculture — — — 707 All Other Commercial — — — 1,236 Residential First Liens 1,011 3,105 575 3,972 Home Equity 8 — — 249 Junior Liens 137 — — 134 Multifamily — — — — All Other Residential — — — 90 Consumer Motor Vehicle 268 9 — 242 All Other Consumer — 177 527 623 TOTAL $ 1,484 $ 3,349 $ 3,754 $ 13,245
Troubled debt restructurings on financing receivables	During the years ending December 31, 2017 , 2016 , and 2015 the terms of certain loans were modified as troubled debt restructurings (TDRs). The following tables present the activity for TDR's. 2017 (Dollar amounts in thousands) Commercial Residential Consumer Total January 1, $ 3,386 $ 4,447 $ 732 $ 8,565 Added — 227 386 613 Charged Off — (289 ) (141 ) (430 ) Payments (677 ) (774 ) (263 ) (1,714 ) December 31, $ 2,709 $ 3,611 $ 714 $ 7,034 2016 (Dollar amounts in thousands) Commercial Residential Consumer Total January 1, $ 3,584 $ 5,593 $ 683 $ 9,860 Added — 123 369 492 Charged Off — (321 ) (70 ) (391 ) Payments (198 ) (948 ) (250 ) (1,396 ) December 31, $ 3,386 $ 4,447 $ 732 $ 8,565 2015 (Dollar amounts in thousands) Commercial Residential Consumer Total January 1, $ 8,955 $ 5,189 $ 614 $ 14,758 Added — 748 342 1,090 Charged Off — (65 ) (52 ) (117 ) Payments (5,371 ) (279 ) (221 ) (5,871 ) December 31, $ 3,584 $ 5,593 $ 683 $ 9,860
Aging of recorded investment in loans by past due category and class of loans	The following tables present the aging of the recorded investment in loans by past due category and class of loans. Greater December 31, 2017 30-59 Days 60-89 Days than 90 days Total (Dollar amounts in thousands) Past Due Past Due Past Due Past Due Current Total Commercial Commercial & Industrial $ 372 $ 80 $ 640 $ 1,092 $ 474,709 $ 475,801 Farmland 341 — 3,671 4,012 104,457 108,469 Non Farm, Non Residential 141 — — 141 200,804 200,945 Agriculture 141 — 561 702 152,388 153,090 All Other Commercial — — — — 207,875 207,875 Residential First Liens 5,467 1,317 1,434 8,218 247,029 255,247 Home Equity 310 46 8 364 35,752 36,116 Junior Liens 274 106 194 574 41,688 42,262 Multifamily — — — — 90,141 90,141 All Other Residential 300 — 12 312 13,329 13,641 Consumer Motor Vehicle 4,770 697 294 5,761 298,211 303,972 All Other Consumer 107 22 — 129 25,334 25,463 TOTAL $ 12,223 $ 2,268 $ 6,814 $ 21,305 $ 1,891,717 $ 1,913,022 Greater December 31, 2016 30-59 Days 60-89 Days than 90 days Total (Dollar amounts in thousands) Past Due Past Due Past Due Past Due Current Total Commercial Commercial & Industrial $ 370 $ 114 $ 1,199 $ 1,683 $ 474,406 $ 476,089 Farmland 235 22 46 303 110,897 111,200 Non Farm, Non Residential 153 — 215 368 195,120 195,488 Agriculture 246 — 467 713 151,059 151,772 All Other Commercial 15 — — 15 178,171 178,186 Residential First Liens 3,862 954 1,516 6,332 264,446 270,778 Home Equity 186 64 27 277 35,782 36,059 Junior Liens 271 — 224 495 36,912 37,407 Multifamily — — — — 67,799 67,799 All Other Residential 42 12 — 54 12,982 13,036 Consumer Motor Vehicle 4,048 732 313 5,093 277,604 282,697 All Other Consumer 143 22 3 168 24,361 24,529 TOTAL $ 9,571 $ 1,920 $ 4,010 $ 15,501 $ 1,829,539 $ 1,845,040
Analysis of risk category of loans by class of loans	Beginning in July 2016, the Company's loan rating process no longer includes all loans in a loan relationship. Therefore, certain first lien mortgage loans and consumer loans that were previously rated in a loan relationship have been included in the not rated category as of December 31, 2016. As of December 31, 2017 and 2016 , and based on the most recent analysis performed, the risk category of loans by class of loans is as follows: December 31, 2017 Special (Dollar amounts in thousands) Pass Mention Substandard Doubtful Not Rated Total Commercial Commercial & Industrial $ 430,015 $ 19,889 $ 18,611 $ 38 $ 5,947 $ 474,500 Farmland 88,338 10,782 7,466 — 10 106,596 Non Farm, Non Residential 179,181 7,689 13,632 — — 200,502 Agriculture 111,724 17,482 21,388 — 342 150,936 All Other Commercial 194,170 2,723 7,459 — 2,604 206,956 Residential First Liens 45,320 750 3,980 5 204,329 254,384 Home Equity 319 — 64 — 35,653 36,036 Junior Liens 1,882 76 342 100 39,755 42,155 Multifamily 89,936 — — — 36 89,972 All Other Residential — — 67 — 13,529 13,596 Consumer Motor Vehicle — — 731 — 301,900 302,631 All Other Consumer — — 44 — 25,301 25,345 TOTAL $ 1,140,885 $ 59,391 $ 73,784 $ 143 $ 629,406 $ 1,903,609 December 31, 2016 Special (Dollar amounts in thousands) Pass Mention Substandard Doubtful Not Rated Total Commercial Commercial & Industrial $ 427,262 $ 16,286 $ 25,177 $ 449 $ 5,730 $ 474,904 Farmland 95,115 8,300 5,238 — 532 109,185 Non Farm, Non Residential 172,739 5,745 16,601 — — 195,085 Agriculture 121,983 13,885 12,301 — 1,366 149,535 All Other Commercial 163,492 596 10,058 76 3,251 177,473 Residential First Liens 43,674 1,541 4,466 18 220,249 269,948 Home Equity 363 — 86 — 35,554 36,003 Junior Liens 1,826 85 401 26 34,977 37,315 Multifamily 66,133 1,430 15 — 65 67,643 All Other Residential — — — — 13,002 13,002 Consumer Motor Vehicle — — 331 — 281,134 281,465 All Other Consumer — — 25 — 24,391 24,416 TOTAL $ 1,092,587 $ 47,868 $ 74,699 $ 569 $ 620,251 $ 1,835,974

PREMISES AND EQUIPMENT_ (Tables

PREMISES AND EQUIPMENT: (Tables)	12 Months Ended
	Dec. 31, 2017
Property, Plant and Equipment, Gross [Abstract]
Schedule of Premises and Equipment	Premises and equipment are summarized as follows: December 31, (Dollar amounts in thousands) 2017 2016 Land $ 12,118 $ 12,265 Building and leasehold improvements 55,854 55,711 Furniture and equipment 46,399 44,608 114,371 112,584 Less accumulated depreciation (66,099 ) (63,344 ) TOTAL $ 48,272 $ 49,240
Schedule of Rent Expense	Rent commitments, before considering renewal options that generally are present, were as follows: 2018 $ 920 2019 546 2020 382 2021 198 2022 158 Thereafter 1,019 $ 3,223

GOODWILL AND INTANGIBLE ASSET34

GOODWILL AND INTANGIBLE ASSETS: (Tables)	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets Subject to Amortization	Intangible assets subject to amortization at December 31, 2017 and 2016 are as follows: 2017 2016 Gross Accumulated Gross Accumulated (Dollar amounts in thousands) Amount Amortization Amount Amortization Core deposit intangible $ 10,836 $ 9,206 $ 10,836 $ 8,727 $ 10,836 $ 9,206 $ 10,836 $ 8,727
Estimated Amortization Expense	Estimated amortization expense for the next five years is as follows: In thousands 2018 $ 434 2019 350 2020 252 2021 232 2022 224

DEPOSITS_ (Tables)

DEPOSITS: (Tables)	12 Months Ended
	Dec. 31, 2017
Maturities of Time Deposits [Abstract]
Scheduled Maturities of Time Deposits	Scheduled maturities of time deposits for the next five years are as follows: (dollar amounts in thousands) 2018 $ 181,508 2019 68,985 2020 40,919 2021 20,227 2022 25,240

SHORT-TERM BORROWINGS_ (Tables)

SHORT-TERM BORROWINGS: (Tables)	12 Months Ended
	Dec. 31, 2017
Short Term Borrowings Disclosure [Abstract]
Schedule of short-term borrowings	A summary of the carrying value of the Corporation's short-term borrowings at December 31, 2017 and 2016 is presented below: (Dollar amounts in thousands) 2017 2016 Federal funds purchased $ 30,165 $ 49,982 Repurchase-agreements 27,521 31,007 $ 57,686 $ 80,989 (Dollar amounts in thousands) 2017 2016 Average amount outstanding $ 39,704 $ 37,949 Maximum amount outstanding at a month end 85,714 80,989 Average interest rate during year 0.62 % 0.35 % Interest rate at year-end 0.96 % 0.64 %

OTHER BORROWINGS_ (Tables)

OTHER BORROWINGS: (Tables)	12 Months Ended
	Dec. 31, 2017
Other Borrowings Disclosure [Abstract]
Schedule of other borrowings	Other borrowings at December 31, 2017 and 2016 are summarized as follows: (Dollar amounts in thousands) 2017 2016 FHLB advances $ — $ 132
Aggregate Minimum Annual Retirements	The aggregate minimum annual retirements of other borrowings are as follows: 2018 $ — 2019 — 2020 — 2021 — 2022 — Thereafter — $ —

INCOME TAXES_ (Tables)

INCOME TAXES: (Tables)	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income Tax Expense	Income tax expense is summarized as follows: (Dollar amounts in thousands) 2017 2016 2015 Federal: Currently payable $ 8,303 $ 15,514 $ 9,890 Deferred 3,756 1,326 (774 ) Expense due to enactment of federal tax reform 6,282 — — 18,341 16,840 9,116 State: Currently payable 1,818 2,857 1,426 Deferred 463 186 (150 ) 2,281 3,043 1,276 TOTAL $ 20,622 $ 19,883 $ 10,392
Reconciliation of Income Tax Expense	The reconciliation of income tax expense with the amount computed by applying the statutory federal income tax rate of 35% to income before income taxes is summarized as follows: (Dollar amounts in thousands) 2017 2016 2015 Federal income taxes computed at the statutory rate $ 17,414 $ 20,403 $ 14,206 Add (deduct) tax effect of: Tax exempt income (4,102 ) (3,992 ) (4,047 ) Non-deductible insurance brokerage goodwill — 1,797 — ESOP dividend deduction (102 ) (47 ) (164 ) State tax, net of federal benefit 1,483 1,978 829 Affordable housing credits (148 ) (148 ) (148 ) Expense due to enactment of federal tax reform 6,282 — — Other, net (205 ) (108 ) (284 ) TOTAL $ 20,622 $ 19,883 $ 10,392
Schedule of Deferred Tax Assets and Liabilities	The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and liabilities at December 31, 2017 and 2016 , are as follows: (Dollar amounts in thousands) 2017 2016 Deferred tax assets: Other than temporary impairment $ 1,829 $ 5,397 Net unrealized losses on retirement plans 6,609 8,576 Net unrealized losses on securities available for sale — 719 Loan loss provisions 5,195 7,318 Deferred compensation 3,661 5,881 Compensated absences 563 832 Post-retirement benefits 1,359 2,043 Deferred loss on acquisition 663 1,111 Other 2,123 3,119 GROSS DEFERRED ASSETS 22,002 34,996 Deferred tax liabilities: Net unrealized gains on securities available-for-sale (804 ) — Depreciation (1,989 ) (2,778 ) Mortgage servicing rights (308 ) (486 ) Pensions (201 ) (65 ) Intangibles (2,446 ) (3,015 ) Other (2,408 ) (3,180 ) GROSS DEFERRED LIABILITIES (8,156 ) (9,524 ) NET DEFERRED TAX ASSETS $ 13,846 $ 25,472
Reconciliation of Unrecognized Tax Benefits	Unrecognized Tax Benefits — A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows: (Dollar amounts in thousands) 2017 2016 2015 Balance at January 1 $ 698 $ 513 $ 589 Additions based on tax positions related to the current year 257 288 68 Additions based on tax positions related to prior years — — — Reductions due to the statute of limitations (130 ) (103 ) (144 ) Balance at December 31 $ 825 $ 698 $ 513

FINANCIAL INSTRUMENTS WITH OF39

FINANCIAL INSTRUMENTS WITH OFF-BALANCE-SHEET RISK: (Tables)	12 Months Ended
	Dec. 31, 2017
Risks and Uncertainties [Abstract]
Summary of Commitment and Contingent Liabilities	Commitment and contingent liabilities are summarized as follows at December 31: (Dollar amounts in thousands) 2017 2016 Home Equity $ 57,060 $ 55,362 Commercial Operating Lines 246,855 268,577 Other Commitments 83,786 66,408 TOTAL $ 387,701 $ 390,347 Commercial letters of credit $ 5,012 $ 5,673

RETIREMENT PLANS_ (Tables)

RETIREMENT PLANS: (Tables)	12 Months Ended
	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Schedule of Net Benefit Costs	Net periodic benefit cost and other amounts recognized in other comprehensive income included the following components: (Dollar amounts in thousands) 2017 2016 2015 Service cost - benefits earned $ 1,432 $ 1,882 $ 2,153 Interest cost on projected benefit obligation 3,621 3,729 3,516 Expected return on plan assets (3,940 ) (3,429 ) (3,452 ) Net amortization and deferral 1,205 1,936 2,065 Net periodic pension cost 2,318 4,118 4,282 Net loss (gain) during the period 5,366 (6,150 ) (1,894 ) Amortization of prior service cost (1 ) (1 ) (1 ) Amortization of unrecognized gain (loss) (1,204 ) (1,935 ) (2,064 ) Total recognized in other comprehensive (income) loss 4,161 (8,086 ) (3,959 ) Total recognized net periodic pension cost and other comprehensive income $ 6,479 $ (3,968 ) $ 323
Schedule of Defined Benefit Plans Disclosures	The information below sets forth the change in projected benefit obligation, reconciliation of plan assets, and the funded status of the Corporation's retirement program. Actuarial present value of benefits is based on service to date and present pay levels. (Dollar amounts in thousands) 2017 2016 Change in benefit obligation: Benefit obligation at January 1 $ 93,233 $ 90,855 Service cost 1,432 1,882 Interest cost 3,621 3,729 Actuarial (gain) loss 5,305 2,839 Benefits paid (5,495 ) (6,072 ) Benefit obligation at December 31 98,096 93,233 Reconciliation of fair value of plan assets: Fair value of plan assets at January 1 70,132 60,602 Actual return on plan assets 3,879 12,418 Employer contributions 2,933 3,184 Benefits paid (5,495 ) (6,072 ) Fair value of plan assets at December 31 71,449 70,132 Funded status at December 31 (plan assets less benefit obligation) $ (26,647 ) $ (23,101 )
Schedule of Assumptions Used	The accumulated benefit obligation for the defined benefit pension plan was $93.3 million and $88.5 million at year-end 2017 and 2016 . Principal assumptions used to determine pension benefit obligation at year end: 2017 2016 Discount rate 3.60 % 4.14 % Rate of increase in compensation levels 3.00 3.00 Principal assumptions used to determine net periodic pension cost: 2017 2016 Discount rate 4.14 % 4.34 % Rate of increase in compensation levels 3.00 3.00 Expected long-term rate of return on plan assets 6.00 6.00
Schedule of Allocation of Plan Assets	The Corporation's pension plan weighted-average asset allocation for the years 2017 and 2016 by asset category are as follows: Pension Plan Target Allocation ESOP Target Allocation Pension Percentage of Plan Assets at December 31, ESOP Percentage of Plan Assets at December 31, ASSET CATEGORY 2017 2017 2017 2016 2017 2016 Equity securities 25-75% 95-99% 72 % 68 % 98 % 99 % Debt securities 0-50% 0-0% 25 % 29 % — % — % Other 0-20% 0-5% 3 % 3 % 2 % 1 % TOTAL 100 % 100 % 100 % 100 %
Schedule Of Fair Value Of Plan Assets	The fair value of the plan assets at December 31, 2017 and 2016 , by asset category, is as follows: Fair Value Measurements at December 31, 2017 Using: Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Observable Inputs (Dollar amounts in thousands) Total (Level 1) (Level 2) (Level 3) Plan assets Equity securities $ 48,152 $ 48,152 $ — $ — Debt securities 10,717 — 10,717 — Investment Funds 12,580 12,580 — — Total plan assets $ 71,449 $ 60,732 $ 10,717 $ — Fair Value Measurements at December 31, 2016 Using: Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Observable Inputs (Dollar amounts in thousands) Total (Level 1) (Level 2) (Level 3) Plan assets Equity securities $ 51,170 $ 51,170 $ — $ — Debt securities 11,566 — 11,566 — Investment Funds 7,396 7,396 — — Total plan assets $ 70,132 $ 58,566 $ 11,566 $ —
Schedule of Expected Benefit Payments	Estimated Future Payments — The following benefit payments, which reflect expected future service, are expected: PENSION BENEFITS (Dollar amounts in thousands) 2018 $ 5,837 2019 6,067 2020 6,166 2021 6,341 2022 6,474 2023-2027 35,078 Estimated Future Payments — The following benefit payments, which reflect expected future service, are expected: (Dollar amounts in thousands) 2018 $ 264 2019 266 2020 274 2021 265 2022 279 2023-2027 1,408
Schedule Of Weighted Average Assumptions	Weighted average assumptions at December 31: December 31, 2017 2016 Discount rate 3.60 % 4.14 % Initial weighted health care cost trend rate 5.00 % 5.00 % Ultimate health care cost trend rate 5.00 5.00 Year that the rate is assumed to stabilize and remain unchanged 2018 2017
Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates	A one-percentage-point change in the assumed health care cost trend rates would have the following effects: 1% Point 1% Point (Dollar amounts in thousands) Increase Decrease Effect on total of service and interest cost components $ 1 $ 1 Effect on post-retirement benefit obligation 25 23
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Schedule of Amounts Recognized in Other Comprehensive Income (Loss)	Amounts recognized in accumulated other comprehensive income at December 31, 2017 and 2016 consist of: (Dollar amounts in thousands) 2017 2016 Net loss (gain) $ 25,621 $ 21,459 Prior service cost (credit) 3 4 $ 25,624 $ 21,463
Postretirement Health Coverage [Member]
Defined Benefit Plan Disclosure [Line Items]
Schedule of Defined Benefit Plans Disclosures	Post-retirement health benefit expense included the following components: Years Ended December 31, (Dollar amounts in thousands) 2017 2016 2015 Service cost $ 53 $ 55 $ 63 Interest cost 172 186 173 Net periodic benefit cost 225 241 236 Net loss (gain) during the period 83 (144 ) (200 ) Total recognized in other comprehensive income (loss) 83 (144 ) (200 ) Total recognized net periodic benefit cost and other comprehensive income $ 308 $ 97 $ 36 The Corporation uses a measurement date of December 31. Accrued post-retirement benefits as of December 31, 2017 and 2016 are as follows: December 31, (Dollar amounts in thousands) 2017 2016 Change in benefit obligation: Benefit obligation at January 1 $ 4,276 $ 4,383 Service cost 53 55 Interest cost 172 186 Plan participants' contributions 75 69 Actuarial (gain) loss 83 (144 ) Benefits paid (298 ) (273 ) Benefit obligation at December 31 $ 4,361 $ 4,276 Funded status at December 31 $ 4,361 $ 4,276
Supplemental Employee Retirement Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Schedule of Net Benefit Costs	The amounts recognized in other comprehensive income in the current year are as follows: (Dollar amounts in thousands) 2017 2016 2015 Net loss (gain) during the period $ 527 $ (511 ) $ (255 ) Amortization of prior service cost — — — Amortization of unrecognized gain (loss) — (57 ) (88 ) Total recognized in other comprehensive (income) loss $ 527 $ (568 ) $ (343 )
Schedule of Expected Benefit Payments	Estimated Future Payments — The following benefit payments, which reflect expected future service, are expected: (Dollar amounts on thousands) 2018 $ — 2019 180 2020 352 2021 343 2022 334 2023-2027 1,593

STOCK BASED COMPENSATION_ (Tabl

STOCK BASED COMPENSATION: (Tables)	12 Months Ended
	Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Restricted Stock Units, Vested and Expected to Vest	2017 2016 Number Weighted Average Grant Date Number Weighted Average Grant Date (shares in thousands) Outstanding Fair Value Outstanding Fair Value Nonvested balance at January 1, 20,524 32.83 20,466 33.26 Granted during the year 16,562 46.70 20,943 32.35 Vested during the year (19,067 ) 37.03 (20,885 ) 32.76 Forfeited during the year — — — — Nonvested balance at December 31, 18,019 41.14 20,524 32.83

OTHER COMPREHENSIVE INCOME (L42

OTHER COMPREHENSIVE INCOME (LOSS): (Tables)	12 Months Ended
	Dec. 31, 2017
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table summarizes the changes, net of tax within each classification of accumulated other comprehensive income for the years ended December 31, 2017 and 2016 . Unrealized gains and 2017 Losses on Retirement (Dollar amounts in thousands) Securities plans Total Beginning balance, January 1 $ (1,077 ) $ (13,087 ) $ (14,164 ) Change in other comprehensive income before reclassification 3,371 (4,609 ) (1,238 ) Amounts reclassified from accumulated other comprehensive income (36 ) 734 698 Net current period other comprehensive income (loss) 3,335 (3,875 ) (540 ) Ending balance, December 31 $ 2,258 $ (16,962 ) $ (14,704 ) Unrealized gains and 2016 Losses on Retirement (Dollar amounts in thousands) Securities plans Total Beginning balance, January 1 $ 9,053 $ (18,454 ) $ (9,401 ) Change in other comprehensive income before reclassification (10,109 ) 4,151 (5,958 ) Amounts reclassified from accumulated other comprehensive income (21 ) 1,216 1,195 Net current period other comprehensive income (loss) (10,130 ) 5,367 (4,763 ) Ending balance, December 31 $ (1,077 ) $ (13,087 ) $ (14,164 ) Balance Current Balance (Dollar amounts in thousands) 1/1/2017 Change 12/31/2017 Unrealized gains (losses) on securities available-for-sale without other than temporary impairment $ (3,018 ) $ 1,647 $ (1,371 ) Unrealized gains (losses) on securities available-for-sale with other than temporary impairment 1,941 1,688 3,629 Total unrealized gain (loss) on securities available-for-sale $ (1,077 ) $ 3,335 $ 2,258 Unrealized loss on retirement plans (13,087 ) (3,875 ) (16,962 ) TOTAL $ (14,164 ) $ (540 ) $ (14,704 ) Balance at Current Period Balance at (Dollar amounts in thousands) 1/1/2016 Change 12/31/2016 Unrealized gains (losses) on securities available-for-sale without other than temporary impairment $ 5,855 $ (8,873 ) $ (3,018 ) Unrealized gains (losses) on securities available-for-sale with other than temporary impairment 3,198 (1,257 ) 1,941 Total unrealized gain (loss) on securities available-for-sale $ 9,053 $ (10,130 ) $ (1,077 ) Unrealized loss on retirement plans (18,454 ) 5,367 (13,087 ) TOTAL $ (9,401 ) $ (4,763 ) $ (14,164 )
Reclassification out of Accumulated Other Comprehensive Income	Balance at December 31, 2017 Details about accumulated Amount reclassified from Affected line item in other comprehensive accumulated other the statement where income components comprehensive income net income is presented (in thousands) Unrealized gains and losses $ 59 Net securities gains (losses) on available-for-sale (23 ) Income tax expense securities $ 36 Net of tax Amortization of $ (1,204 ) (a) retirement plan items 470 Income tax expense $ (734 ) Net of tax Total reclassifications for the period $ (698 ) Net of tax (a) Included in the computation of net periodic benefit cost which is included in salaries and benefits. (see Footnote 15 for additional details). Balance at December 31, 2016 Details about accumulated Amount reclassified from Affected line item in other comprehensive accumulated other the statement where income components comprehensive income net income is presented (in thousands) Unrealized gains and losses $ 34 Net securities gains (losses) on available-for-sale (13 ) Income tax expense securities $ 21 Net of tax Amortization of $ (1,992 ) (a) retirement plan items 776 Income tax expense $ (1,216 ) Net of tax Total reclassifications for the period $ (1,195 ) Net of tax (a) Included in the computation of net periodic benefit cost which is included in salaries and benefits. (see Footnote 15 for additional details). Balance at December 31, 2015 Details about accumulated Amount reclassified from Affected line item in other comprehensive accumulated other the statement where income components comprehensive income net income is presented (in thousands) Unrealized gains and losses $ 17 Net securities gains (losses) on available-for-sale (6 ) Income tax expense securities $ 11 Net of tax Amortization of $ (8,066 ) (a) retirement plan items 3,146 Income tax expense $ (4,920 ) Net of tax Total reclassifications for the period $ (4,909 ) Net of tax (a) Included in the computation of net periodic benefit cost which is included in salaries and benefits. (see Footnote 15 for additional details).

REGULATORY MATTERS_ (Tables)

REGULATORY MATTERS: (Tables)	12 Months Ended
	Dec. 31, 2017
Banking and Thrift [Abstract]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations	The following table presents the actual and required capital amounts and related ratios for the Corporation and First Financial Bank, N.A., at year-end 2017 and 2016 . To Be Well Capitalized For Capital Under Prompt Corrective Actual Adequacy Purposes Action Provisions (Dollar amounts in thousands) Amount Ratio Amount Ratio Amount Ratio Total risk-based capital Corporation – 2017 $ 412,525 17.88 % $ 213,446 9.250 % N/A N/A Corporation – 2016 $ 411,713 18.26 % $ 194,435 8.625 % N/A N/A First Financial Bank – 2017 386,593 17.30 % 206,745 9.250 % 223,508 10.00 % First Financial Bank – 2016 384,522 17.64 % 188,003 8.625 % 217,974 10.00 % Common equity tier I capital Corporation – 2017 $ 392,615 17.01 % $ 132,682 5.750 % N/A N/A Corporation – 2016 $ 392,939 17.43 % $ 115,534 5.125 % N/A N/A First Financial Bank – 2017 370,061 16.56 % 128,517 5.750 % 145,280 6.50 % First Financial Bank – 2016 368,797 16.92 % 111,712 5.125 % 141,683 6.50 % Tier I risk-based capital Corporation – 2017 $ 392,615 17.01 % $ 167,295 7.250 % N/A N/A Corporation – 2016 $ 392,939 17.43 % $ 149,348 6.625 % N/A N/A First Financial Bank – 2017 370,061 16.56 % 162,044 7.250 % 178,807 8.00 % First Financial Bank – 2016 368,797 16.92 % 144,408 6.625 % 174,379 8.00 % Tier I leverage capital Corporation – 2017 $ 392,615 13.31 % $ 117,956 4.00 % N/A N/A Corporation – 2016 $ 392,939 13.39 % $ 117,376 4.00 % N/A N/A First Financial Bank – 2017 370,061 12.81 % 115,553 4.00 % 144,441 5.00 % First Financial Bank – 2016 368,797 12.82 % 115,047 4.00 % 143,809 5.00 %

PARENT COMPANY CONDENSED FINA44

PARENT COMPANY CONDENSED FINANCIAL STATEMENTS: (Tables)	12 Months Ended
	Dec. 31, 2017
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Schedule of Condensed Balance Sheet	December 31, (Dollar amounts in thousands) 2017 2016 ASSETS Cash deposits in affiliated banks $ 3,198 $ 2,765 Investments in subsidiaries 414,839 416,024 Land and headquarters building, net 5,193 5,388 Other — — Total Assets $ 423,230 $ 424,177 LIABILITIES AND SHAREHOLDERS' EQUITY Liabilities Dividends payable $ 6,234 $ 6,104 Other liabilities 3,427 3,678 TOTAL LIABILITIES 9,661 9,782 Shareholders' Equity 413,569 414,395 TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY $ 423,230 $ 424,177
Schedule of Condensed Income Statement	CONDENSED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME Years Ended December 31, (Dollar amounts in thousands) 2017 2016 2015 Dividends from subsidiaries $ 30,814 $ 31,781 $ 19,397 Other income 720 722 795 Other operating expenses (2,647 ) (2,581 ) (2,314 ) Income before income taxes and equity in undistributed earnings of subsidiaries 28,887 29,922 17,878 Income tax benefit 889 821 815 Income before equity in undistributed earnings of subsidiaries 29,776 30,743 18,693 Equity in undistributed earnings of subsidiaries (645 ) 7,670 11,503 Net income $ 29,131 $ 38,413 $ 30,196 Comprehensive income $ 28,591 $ 33,650 $ 35,324
Schedule of Condensed Cash Flow Statement	CONDENSED STATEMENTS OF CASH FLOWS Years Ended December 31, (Dollar amounts in thousands) 2017 2016 2015 CASH FLOWS FROM OPERATING ACTIVITIES: Net Income $ 29,131 $ 38,413 $ 30,196 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 195 200 203 Equity in undistributed earnings 645 (7,670 ) (11,503 ) Contribution of shares to ESOP 1,062 1,361 1,294 Restricted stock compensation 706 684 684 Increase (decrease) in other liabilities (247 ) (262 ) (1,524 ) (Increase) decrease in other assets — 12 188 NET CASH FROM OPERATING ACTIVITIES 31,492 32,738 19,538 CASH FLOWS FROM INVESTING ACTIVITIES: Purchase of furniture and fixtures — — (65 ) NET CASH FROM INVESTING ACTIVITIES — — (65 ) CASH FLOWS FROM FINANCING ACTIVITIES: Purchase of treasury stock (503 ) (19,396 ) (8,698 ) Dividends paid (30,556 ) (12,359 ) (12,632 ) NET CASH FROM FINANCING ACTIVITES (31,059 ) (31,755 ) (21,330 ) NET (DECREASE) INCREASE IN CASH 433 983 (1,857 ) CASH, BEGINNING OF YEAR 2,765 1,782 3,639 CASH, END OF YEAR $ 3,198 $ 2,765 $ 1,782 Supplemental disclosures of cash flow information: Cash paid during the year for: Interest $ — $ — $ — Income taxes $ 11,158 $ 18,739 $ 12,869

SELECTED QUARTERLY DATA (UNAUDI

SELECTED QUARTERLY DATA (UNAUDITED): (Tables)	12 Months Ended
	Dec. 31, 2017
Selected Quarterly Financial Information [Abstract]
Schedule of Quarterly Financial Information	2017 (Dollar amounts in thousands) Interest Interest Net Interest Provision Net Income (a) Net Income March 31 $ 27,846 $ 1,339 $ 26,507 $ 1,596 $ 9,369 $ 0.77 June 30 $ 28,128 $ 1,568 $ 26,560 $ 1,040 $ 8,352 $ 0.68 September 30 $ 28,805 $ 1,697 $ 27,108 $ 1,185 $ 8,794 $ 0.72 December 31 $ 29,416 $ 1,734 $ 27,682 $ 1,474 $ 2,616 $ 0.21 2016 (Dollar amounts in thousands) Interest Interest Net Provision Net Income (b) Net Income March 31 $ 27,201 $ 1,044 $ 26,157 $ 835 $ 13,675 $ 1.08 June 30 $ 27,150 $ 1,091 $ 26,059 $ 435 $ 8,232 $ 0.68 September 30 $ 27,450 $ 1,099 $ 26,351 $ 1,091 $ 8,162 $ 0.67 December 31 $ 27,579 $ 1,173 $ 26,406 $ 939 $ 8,344 $ 0.69 (a) The fourth quarter of 2017 was reduced due to the additional expense of $6.3 million for the enactment of federal tax reform. (b) The first quarter of 2016 included the gain on sale of certain assets and liabilities of the insurance brokerage operations that resulted in an after-tax gain of $5.75 million

BUSINESS AND SIGNIFICANT ACCO46

BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES: (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)subsidiarybranch	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Property, Plant and Equipment [Line Items]
Number of investment subsidiaries (subsidiary) | subsidiary	2
Transfer to other real estate | $	$ 876	$ 700	$ 1,300
Fair value of indemnification assets reimbursement from FDIC | $	$ 12,100
FDIC Reimburse (up to 95%) (percent)	95.00%
Servicing fees, net | $	$ 1,300	1,300	1,300
Repayment of deferred fees and interest in years	10 years
Expenses for deferred compensation | $	$ 95	114	142
Deferred compensation liability, current | $	$ 2,000	2,600
Payment of incentive rewards	15 years
Compensation liability | $	$ 11,400	12,300
Vesting period	3 years
Officers' compensation expense | $	$ 1,600	1,500	$ 1,400
Deferred compensation liablity incentive plan | $	$ 836	$ 823
Income tax examination, description	The amount recognized is the largest amount of tax benefit that is greater than 50% likely of being realized on examination.
Likelihood of unfavorable settlement (percent)	50.00%
Minimum
Property, Plant and Equipment [Line Items]
Finite-lived intangible asset, useful life	10 years
Maximum
Property, Plant and Equipment [Line Items]
Finite-lived intangible asset, useful life	12 years
Furniture and Fixtures | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, estimated useful lives	P3Y
Furniture and Fixtures | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, estimated useful lives	5
Buildings And Leasehold Improvements | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, estimated useful lives	33
Buildings And Leasehold Improvements | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, estimated useful lives	39
Vigo County
Property, Plant and Equipment [Line Items]
Number of branches entity operates (branches)	11
Daviess County, Indiana
Property, Plant and Equipment [Line Items]
Number of branches entity operates (branches)	1
Gibson County, Indiana
Property, Plant and Equipment [Line Items]
Number of branches entity operates (branches)	1
Greene County, Indiana
Property, Plant and Equipment [Line Items]
Number of branches entity operates (branches)	1
Putnam County, Indiana
Property, Plant and Equipment [Line Items]
Number of branches entity operates (branches)	1
Sullivan County, Indiana
Property, Plant and Equipment [Line Items]
Number of branches entity operates (branches)	4
Vanderburgh County, Indiana
Property, Plant and Equipment [Line Items]
Number of branches entity operates (branches)	1
Vermillion County, Indiana
Property, Plant and Equipment [Line Items]
Number of branches entity operates (branches)	4
Clark County, Illinois
Property, Plant and Equipment [Line Items]
Number of branches entity operates (branches)	1
Coles County, Illinois
Property, Plant and Equipment [Line Items]
Number of branches entity operates (branches)	3
Crawford County, Illinois
Property, Plant and Equipment [Line Items]
Number of branches entity operates (branches)	2
Franklin County, Illinois [Member]
Property, Plant and Equipment [Line Items]
Number of branches entity operates (branches)	2
Jasper County, Illinois
Property, Plant and Equipment [Line Items]
Number of branches entity operates (branches)	1
Lawrence County, Illinois
Property, Plant and Equipment [Line Items]
Number of branches entity operates (branches)	1
Livingston County, Illinois
Property, Plant and Equipment [Line Items]
Number of branches entity operates (branches)	2
Marion County, Illinois [Member]
Property, Plant and Equipment [Line Items]
Number of branches entity operates (branches)	2
McLean County, Illinois
Property, Plant and Equipment [Line Items]
Number of branches entity operates (branches)	3
Richland County, Illinois
Property, Plant and Equipment [Line Items]
Number of branches entity operates (branches)	2
Wayne County, Illinois
Property, Plant and Equipment [Line Items]
Number of branches entity operates (branches)	1
First Financial Bank [Member]
Property, Plant and Equipment [Line Items]
Investments in subsidiaries | $	$ 743,300

FAIR VALUES OF FINANCIAL INST47

FAIR VALUES OF FINANCIAL INSTRUMENTS: (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Fair value measurement
Securities available-for-sale	$ 814,931	$ 853,725
U.S. Government entity mortgage-backed securities
Fair value measurement
Securities available-for-sale	13,695	13,249
Mortgage-backed securities, residential
Fair value measurement
Securities available-for-sale	215,338	261,005
Mortgage-backed securities, commercial
Fair value measurement
Securities available-for-sale	1	4
Collateralized mortgage obligations
Fair value measurement
Securities available-for-sale	339,670	348,176
State and municipal obligations
Fair value measurement
Securities available-for-sale	231,622	218,923
Collateralized debt obligations
Fair value measurement
Securities available-for-sale	14,605	12,368
Level 1
Fair value measurement
Securities available-for-sale	0	0
Level 2
Fair value measurement
Securities available-for-sale	796,646	837,147
Derivative Assets	298	653
Derivative Liabilities	(298)	(653)
Level 2 | U.S. Government entity mortgage-backed securities
Fair value measurement
Securities available-for-sale	13,695	13,249
Level 2 | Mortgage-backed securities, residential
Fair value measurement
Securities available-for-sale	215,338	261,005
Level 2 | Mortgage-backed securities, commercial
Fair value measurement
Securities available-for-sale	1	4
Level 2 | Collateralized mortgage obligations
Fair value measurement
Securities available-for-sale	339,670	348,176
Level 2 | State and municipal obligations
Fair value measurement
Securities available-for-sale	227,942	214,713
Level 3
Fair value measurement
Securities available-for-sale	18,285	16,578
Level 3 | State and municipal obligations
Fair value measurement
Securities available-for-sale	3,680	4,210
Level 3 | Collateralized debt obligations
Fair value measurement
Securities available-for-sale	$ 14,605	$ 12,368

FAIR VALUES OF FINANCIAL INST48

FAIR VALUES OF FINANCIAL INSTRUMENTS: (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Total realized/unrealized gains or losses
Beginning balance, January 1	$ 16,578	$ 19,600
Included in earnings	0	0
Included in other comprehensive income	2,773	(2,066)
Purchases	0	0
Settlements	(1,066)	(956)
Ending balance, December 31	18,285	16,578
State and municipal obligations
Total realized/unrealized gains or losses
Beginning balance, January 1	4,210	4,725
Included in earnings	0	0
Included in other comprehensive income	0
Purchases	0	0
Settlements	(530)	(515)
Ending balance, December 31	3,680	4,210
Collateralized debt obligations
Total realized/unrealized gains or losses
Beginning balance, January 1	12,368	14,875
Included in earnings	0	0
Included in other comprehensive income	2,773	(2,066)
Settlements	(536)	(441)
Ending balance, December 31	$ 14,605	$ 12,368

FAIR VALUES OF FINANCIAL INST49

FAIR VALUES OF FINANCIAL INSTRUMENTS: (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range of Inputs (percent)	0.00%
Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range of Inputs (percent)	50.00%
State and municipal obligations | Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 3,680	$ 4,210
Valuation Technique(s)	Discounted cash flow	Discounted cash flow
Unobservable Input(s)	Discount rate	Discount rate
State and municipal obligations | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range of Inputs (percent)	3.05%	3.05%
State and municipal obligations | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range of Inputs (percent)	5.50%	5.50%
State And Municipal Obligations
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range of Inputs (percent)	0.00%	0.00%
State And Municipal Obligations | Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Unobservable Input(s)	Probability of default	Probability of default
Other Real Estate | Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 1,880	$ 2,531
Valuation Technique(s)	Sales comparison/income approach	Sales comparison/income approach
Unobservable Input(s)	Discount rate for age of appraisal and market conditions	Discount rate for age of appraisal and market conditions
Other Real Estate | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range of Inputs (percent)	5.00%	5.00%
Other Real Estate | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range of Inputs (percent)	20.00%	20.00%
Impaired Loans | Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 3,882	$ 1,387
Valuation Technique(s)	Sales comparison/income approach	Sales comparison/income approach
Unobservable Input(s)	Discount rate for age of appraisal and market conditions	Discount rate for age of appraisal and market conditions
Impaired Loans | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range of Inputs (percent)	0.00%	0.00%
Impaired Loans | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range of Inputs (percent)	50.00%	50.00%

FAIR VALUES OF FINANCIAL INST50

FAIR VALUES OF FINANCIAL INSTRUMENTS: (Details 3) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Loans identified as impaired by class of loans
Carrying Value	$ 4,507	$ 1,718
Allowance for Loan Losses Allocated	625	331
Fair value	3,882	1,387
Commercial & Industrial
Loans identified as impaired by class of loans
Carrying Value	493	537
Allowance for Loan Losses Allocated	146	36
Fair value	347	501
Farmland
Loans identified as impaired by class of loans
Carrying Value	3,035	0
Allowance for Loan Losses Allocated	268	0
Fair value	2,767	0
Non Farm, Non Residential
Loans identified as impaired by class of loans
Carrying Value	0	657
Allowance for Loan Losses Allocated	0	206
Fair value	0	451
Agriculture
Loans identified as impaired by class of loans
Carrying Value	537	0
Allowance for Loan Losses Allocated	205	0
Fair value	332	0
All Other Commercial
Loans identified as impaired by class of loans
Carrying Value	0	0
Allowance for Loan Losses Allocated	0	0
Fair value	0	0
First Liens
Loans identified as impaired by class of loans
Carrying Value	442	524
Allowance for Loan Losses Allocated	6	89
Fair value	436	435
Home Equity
Loans identified as impaired by class of loans
Carrying Value	0	0
Allowance for Loan Losses Allocated	0	0
Fair value	0	0
Junior Liens
Loans identified as impaired by class of loans
Carrying Value	0	0
Allowance for Loan Losses Allocated	0	0
Fair value	0	0
Multifamily
Loans identified as impaired by class of loans
Carrying Value	0	0
Allowance for Loan Losses Allocated	0	0
Fair value	0	0
All Other Residential
Loans identified as impaired by class of loans
Carrying Value	0	0
Allowance for Loan Losses Allocated	0	0
Fair value	0	0
Motor Vehicle
Loans identified as impaired by class of loans
Carrying Value	0	0
Allowance for Loan Losses Allocated	0	0
Fair value	0	0
All Other Consumer
Loans identified as impaired by class of loans
Carrying Value	0	0
Allowance for Loan Losses Allocated	0	0
Fair value	$ 0	$ 0

FAIR VALUES OF FINANCIAL INST51

FAIR VALUES OF FINANCIAL INSTRUMENTS: (Details 4) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Carrying amount and estimated fair value of financial instruments
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held	$ 7,132	$ 13,974	$ 13,995	$ 14,050
Securities available-for-sale	814,931	853,725
Restricted Stock	10,379	10,359
Accrued interest receivable	12,913	12,311
Deposits	(2,458,653)	(2,428,526)
Level 1
Carrying amount and estimated fair value of financial instruments
Cash and due from banks	20,682	21,047
Securities available-for-sale	0	0
Level 2
Carrying amount and estimated fair value of financial instruments
Cash and due from banks	53,425	53,965
Federal funds sold		6,952
Securities available-for-sale	796,646	837,147
Accrued interest receivable	3,596	3,340
Deposits	(2,456,900)	(2,414,555)
Short-term borrowings	(57,686)	(80,989)
Federal Home Loan Bank advances	0	(137)
Accrued interest payable	(372)	(363)
Level 3
Carrying amount and estimated fair value of financial instruments
Securities available-for-sale	18,285	16,578
Loans, net	1,878,166	1,854,046
Accrued interest receivable	9,317	8,971
Reported Value Measurement [Member]
Carrying amount and estimated fair value of financial instruments
Cash and due from banks	74,107	75,012
Federal funds sold		6,952
Securities available-for-sale	814,931	853,725
Restricted Stock	10,379	10,359
Loans, net	1,886,852	1,820,407
Accrued interest receivable	12,913	12,311
Deposits	(2,458,653)	(2,428,526)
Short-term borrowings	(57,686)	(80,989)
Federal Home Loan Bank advances	0	(132)
Accrued interest payable	(372)	(363)
Estimate of Fair Value Measurement [Member]
Carrying amount and estimated fair value of financial instruments
Cash and due from banks	74,107	75,012
Federal funds sold		6,952
Securities available-for-sale	814,931	853,725
Loans, net	1,878,166	1,854,046
Accrued interest receivable	12,913	12,311
Deposits	(2,456,900)	(2,414,555)
Short-term borrowings	(57,686)	(80,989)
Federal Home Loan Bank advances	0	(137)
Accrued interest payable	$ (372)	$ (363)

FAIR VALUES OF FINANCIAL INST52

FAIR VALUES OF FINANCIAL INSTRUMENTS: (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Carrying amount and estimated fair value of financial instruments
Gain On Sale Of Securities Net	$ 185	$ 39
Valuation allowance for impaired loans	625	331
Provision for impaired loan losses	294	523
Other Real Estate Commercial loan | Level 3
Carrying amount and estimated fair value of financial instruments
Fair Value	1,700	2,000
Other Real Estate Residential Loan | Level 3
Carrying amount and estimated fair value of financial instruments
Fair Value	212	483
Impaired Loans | Level 3
Carrying amount and estimated fair value of financial instruments
Fair Value	3,882	1,387
Valuation allowance for impaired loans	600	300
Other Real Estate | Level 3
Carrying amount and estimated fair value of financial instruments
Fair Value	1,880	2,531
Assets fair value adjustment increase (decrease)	$ (951)	$ (930)
Minimum
Carrying amount and estimated fair value of financial instruments
Fair Value Inputs, Discount Rate	0.00%
Minimum | Impaired Loans
Carrying amount and estimated fair value of financial instruments
Fair Value Inputs, Discount Rate	0.00%	0.00%
Minimum | Other Real Estate
Carrying amount and estimated fair value of financial instruments
Fair Value Inputs, Discount Rate	5.00%	5.00%
Maximum
Carrying amount and estimated fair value of financial instruments
Fair Value Inputs, Discount Rate	50.00%
Maximum | Impaired Loans
Carrying amount and estimated fair value of financial instruments
Fair Value Inputs, Discount Rate	50.00%	50.00%
Maximum | Other Real Estate
Carrying amount and estimated fair value of financial instruments
Fair Value Inputs, Discount Rate	20.00%	20.00%

RESTRICTIONS ON CASH AND DUE 53

RESTRICTIONS ON CASH AND DUE FROM BANKS: (Details Textual) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Restrictions On Cash and Due From Banks Disclosure [Abstract]
Cash Reserve Balance	$ 12.5	$ 12

SECURITIES_ (Details)

SECURITIES: (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Amortized cost and fair value of investments classified as available for sale
TOTAL	$ 811,369	$ 855,521
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	13,097	12,618
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	9,535	14,414
Securities available-for-sale	814,931	853,725
U.S. Government entity mortgage-backed securities
Amortized cost and fair value of investments classified as available for sale
TOTAL	13,989	13,594
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	24	32
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	318	377
Securities available-for-sale	13,695	13,249
Mortgage-backed securities, residential
Amortized cost and fair value of investments classified as available for sale
TOTAL	215,079	261,878
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	2,071	3,200
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	1,812	4,073
Securities available-for-sale	215,338	261,005
Mortgage-backed securities, commercial
Amortized cost and fair value of investments classified as available for sale
TOTAL	1	4
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	0	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	0
Securities available-for-sale	1	4
Collateralized mortgage obligations
Amortized cost and fair value of investments classified as available for sale
TOTAL	346,005	353,499
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	370	1,021
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	6,705	6,344
Securities available-for-sale	339,670	348,176
State and municipal obligations
Amortized cost and fair value of investments classified as available for sale
TOTAL	227,651	217,365
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	4,671	3,954
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	700	2,396
Securities available-for-sale	231,622	218,923
Collateralized debt obligations
Amortized cost and fair value of investments classified as available for sale
TOTAL	8,644	9,181
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	5,961	4,411
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	1,224
Securities available-for-sale	$ 14,605	$ 12,368

SECURITIES_ (Details 1)

SECURITIES: (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities	$ 15,348	$ 8,160	$ 3,735
Gross gains	185	39	23
Gross losses	$ (126)	$ (5)	$ (6)

SECURITIES_ (Details 2)

SECURITIES: (Details 2) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Amortized Cost
Due in one year or less	$ 4,683
Due after one but within five years	30,765
Due after five but within ten years	83,483
Due after ten years	131,353
Total of securities having specified maturity period	250,284
Mortgage-backed securities and collateralized mortgage obligations	561,085
TOTAL	811,369	$ 855,521
Fair Value
Due in one year or less	4,701
Due after one but within five years	31,338
Due after five but within ten years	85,726
Due after ten years	138,157
Total of securities having specified maturities period	259,922
Mortgage-backed securities and collateralized mortgage obligations	555,009
TOTAL	$ 814,931	$ 853,725

SECURITIES_ (Details 3)

SECURITIES: (Details 3) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Less Than 12 Months
Fair Value	$ 266,768	$ 464,602
Unrealized Losses	(2,112)	(11,155)
More Than 12 Months
Fair Value	222,763	80,151
Unrealized Losses	(7,423)	(3,259)
Total
Fair Value	489,531	544,753
Unrealized Losses	(9,535)	(14,414)
U.S. Government entity mortgage-backed securities
Less Than 12 Months
Fair Value	9,321
Unrealized Losses	(86)
More Than 12 Months
Fair Value	3,538
Unrealized Losses	(232)
Total
Fair Value	12,859
Unrealized Losses	(318)
Mortgage-backed securities, residential
Less Than 12 Months
Fair Value	79,918	12,224
Unrealized Losses	(425)	(377)
More Than 12 Months
Fair Value	53,815	0
Unrealized Losses	(1,387)	0
Total
Fair Value	133,733	12,224
Unrealized Losses	(1,812)	(377)
Mortgage-backed securities, commercial
Less Than 12 Months
Fair Value		202,248
Unrealized Losses		(4,072)
More Than 12 Months
Fair Value		152
Unrealized Losses		(1)
Total
Fair Value		202,400
Unrealized Losses		(4,073)
Collateralized mortgage obligations
Less Than 12 Months
Fair Value	150,182	169,717
Unrealized Losses	(1,418)	(3,086)
More Than 12 Months
Fair Value	146,750	79,999
Unrealized Losses	(5,287)	(3,258)
Total
Fair Value	296,932	249,716
Unrealized Losses	(6,705)	(6,344)
State and municipal obligations
Less Than 12 Months
Fair Value	27,347	72,852
Unrealized Losses	(183)	(2,396)
More Than 12 Months
Fair Value	18,660	0
Unrealized Losses	(517)	0
Total
Fair Value	46,007	72,852
Unrealized Losses	$ (700)	(2,396)
Collateralized debt obligations
Less Than 12 Months
Fair Value		7,561
Unrealized Losses		(1,224)
More Than 12 Months
Fair Value		0
Unrealized Losses		0
Total
Fair Value		7,561
Unrealized Losses		$ (1,224)

SECURITIES_ (Details 4)

SECURITIES: (Details 4) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Rollforward of the credit losses recognized in earnings
Beginning balance, January 1,	$ 13,974	$ 13,995	$ 14,050
Amounts related to the credit loss for which other-than-temporary impairment was previously recognized	0	0	0
Reductions for securities called during the period	(6,842)
Reductions for increase in cash flows expected to be collected that are recognized over the remaining life of the security	0	(21)	(55)
Increases to the amount related to the credit loss for which other- than-temporary impairment was previously recognized	0	0	0
Ending balance, December 31,	$ 7,132	$ 13,974	$ 13,995

SECURITIES_ (Details Textual)

SECURITIES: (Details Textual)	2 Months Ended	12 Months Ended
	Mar. 07, 2018USD ($)	Dec. 31, 2017USD ($)cdo	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Schedule of Available-for-sale Securities [Line Items]
Securities pledged as collateral		$ 423,900,000	$ 391,100,000
Gain on sale of investments		185,000	39,000
Loss on sale of investments		$ 126,000	6,000
Number of investment securities with an amortized cost greater than fair value (investments)		239
Cumulative OTTI charges		$ 7,132,000	13,974,000	$ 13,995,000	$ 14,050,000
Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities		141,819,000	168,506,000	$ 150,315,000
Amortized Cost		811,369,000	855,521,000
Securities available-for-sale		814,931,000	853,725,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss		$ 9,535,000	$ 14,414,000
Standard Poors | Minimum
Schedule of Available-for-sale Securities [Line Items]
Credit quality indicator pricing		67.64
Standard Poors | Maximum
Schedule of Available-for-sale Securities [Line Items]
Credit quality indicator pricing		79.33
Moody Investor Service | Minimum
Schedule of Available-for-sale Securities [Line Items]
Credit quality indicator pricing		19.53
Moody Investor Service | Maximum
Schedule of Available-for-sale Securities [Line Items]
Credit quality indicator pricing		49.45
Other Than Temporarily Impaired Cdo [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of CDO's | cdo		2
Contractual balance		$ 18,400,000
Reduced balance		14,600,000
Interest payment received		2,600,000
Cumulative OTTI charges		7,200,000
Other comprehensive income net		$ 6,000,000
Base discount rate, which is subject to an additional margin		3 month LIBOR
Other Than Temporarily Impaired Cdo [Member] | Minimum
Schedule of Available-for-sale Securities [Line Items]
Severity of OTTI (as a percent)		28.00%
Other Than Temporarily Impaired Cdo [Member] | Maximum
Schedule of Available-for-sale Securities [Line Items]
Severity of OTTI (as a percent)		80.00%
London Interbank Offered Rate (LIBOR) [Member] | Other Than Temporarily Impaired Cdo [Member]
Schedule of Available-for-sale Securities [Line Items]
Available For Sale Securities Present Value Of Future Cash Flows Discount Rate, Basis Point Spread on Variable Rate Basis, Minimum		1.60%
Available For Sale Securities Present Value Of Future Cash Flows Discount Rate, Basis Point Spread on Variable Rate Basis, Maximum		1.80%
Subsequent Event [Member]
Schedule of Available-for-sale Securities [Line Items]
Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities	$ 3,100,000

LOANS_ (Details)

LOANS: (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 1,903,609	$ 1,835,974
Deferred costs, net	3,152	3,206
Allowance for loan losses	(19,909)	(18,773)	$ (19,946)	$ (18,839)
TOTAL	1,886,852	1,820,407
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	1,139,490	1,106,182
Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	436,143	423,911
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 327,976	$ 305,881

LOANS_ (Details Textual)

LOANS: (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for sale	$ 4.1	$ 6.1
Loans serviced for others, not reported as assets	484.4	496.2
Escrow deposit	2.8	2.7
Fair value, based on valuations	$ 2.3	$ 2.6
Assumptions used to estimate fair value, discount rate (percent)	13.00%	12.00%
Assumptions used to estimate fair value, weighted average life	8 years
Director and Executive Officer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning Balance	$ 59.1
Advances	26.9
Repayments	43.3
Ending Balance	$ 42.7	$ 59.1
Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Assumptions used to estimate fair value, prepayment speed (percent)	250.00%	316.00%
Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Assumptions used to estimate fair value, prepayment speed (percent)	112.00%	108.00%

LOANS_ (Details 1)

LOANS: (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Servicing Rights
Beginning of year	$ 1,549	$ 1,746	$ 1,863
Additions	477	480	531	[1]
Amortized to expense	(592)	(677)	(648)
End of year	$ 1,434	$ 1,549	$ 1,746
[1]	{F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOjE1Y2M2ZTQ3NTQ1MDQyYTViZjIyNjhkNzVkZWNmZjM0fFRleHRTZWxlY3Rpb246Q0EyQjAwNkRFNURBMjQzOTkyRUU0NzJCN0U0Mzg0MzAM}

ACQUISITIONS AND FDIC INDEMNI63

ACQUISITIONS AND FDIC INDEMNIFICATION ASSET: (Details Textual) - USD ($)	3 Months Ended								9 Months Ended	12 Months Ended			54 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Sep. 30, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2013	Aug. 16, 2013
Business Acquisition [Line Items]
Gain on Sale of certain assets and liabilities of Insurance Brokerage Operation		$ (199,000)							$ 12,800,000	$ 0	$ 12,822,000	$ 0
Deposits	$ 2,458,653,000				$ 2,428,526,000					2,458,653,000	2,428,526,000
Goodwill	34,355,000				34,355,000					34,355,000	34,355,000
Reimbursements from the FDIC													$ (24,300,000)
Covered loans	4,300,000				5,100,000					4,300,000	5,100,000
Assets	3,000,668,000				2,988,527,000					3,000,668,000	2,988,527,000
Net Income (Loss) Attributable to Parent	$ 2,616,000	$ 8,794,000	$ 8,352,000	$ 9,369,000	8,344,000	$ 8,162,000	$ 8,232,000	$ 13,675,000		29,131,000	38,413,000	30,196,000
Bank of America
Business Acquisition [Line Items]
Goodwill recorded, which is expected to be tax deductable														$ 1,900
First National Bank Of Danville
Business Acquisition [Line Items]
Losses on assets, threshold under loss-sharing agreement (up to $29 million)										$ 29,000,000
Percentage of losses to be reimbursed by the FDIC, on losses up to the threshold amount (percent)										80.00%
Percentage of losses to be reimbursed by the FDIC, on losses exceeding the threshold amount (percent)										95.00%
Forrest Sherer Insurance [Domain]
Business Acquisition [Line Items]
Revenues											7,600,000	8,300,000
Operating Income (Loss)											168,000	544,000
Goodwill				$ 5,100,000
Assets					$ 13,000,000						$ 13,000,000	$ 15,800,000

ACQUISITIONS AND FDIC INDEMNI64

ACQUISITIONS AND FDIC INDEMNIFICATION ASSET: (Details 1) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Beginning balance	$ 4,881	$ 5,602
Discount accretion	0	0
Disposals	(2,985)	(721)
Total Covered Assets	1,896	4,881
Commercial
Business Acquisition [Line Items]
Beginning balance	3,451	4,122
Discount accretion	0	0
Disposals	(1,555)	(671)
Total Covered Assets	1,896	3,451
Consumer
Business Acquisition [Line Items]
Beginning balance	1,430	1,480
Discount accretion	0	0
Disposals	(1,430)	(50)
Total Covered Assets	$ 0	$ 1,430

ACQUISITIONS AND FDIC INDEMNI65

ACQUISITIONS AND FDIC INDEMNIFICATION ASSET: (Details 2) $ in Millions	54 Months Ended
	Dec. 31, 2013USD ($)
FDIC Indemnification Asset [Roll Forward]
Reimbursements from the FDIC	$ (24.3)

ALLOWANCE FOR LOAN LOSSES_ (Det

ALLOWANCE FOR LOAN LOSSES: (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017		Dec. 31, 2016		Dec. 31, 2015
Allowance for Loan Losses:
Beginning balance	$ 18,773		$ 19,946		$ 18,839
Provision for loan losses	5,295	[1]	3,300	[2]	4,700	[3]
Loans charged -off	(8,762)		(8,949)		(8,528)
Recoveries	4,603		4,476		4,935
Ending Balance	19,909		18,773		19,946
Commercial
Allowance for Loan Losses:
Beginning balance	9,731		11,482		10,915
Provision for loan losses	745	[1]	(755)	[2]	990	[3]
Loans charged -off	(1,572)		(2,659)		(2,852)
Recoveries	1,377		1,663		2,429
Ending Balance	10,281		9,731		11,482
Residential
Allowance for Loan Losses:
Beginning balance	1,553		1,834		1,374
Provision for loan losses	(179)	[1]	54	[2]	874	[3]
Loans charged -off	(761)		(1,011)		(866)
Recoveries	842		676		452
Ending Balance	1,455		1,553		1,834
Consumer
Allowance for Loan Losses:
Beginning balance	5,767		4,945		4,370
Provision for loan losses	4,987	[1]	3,964	[2]	3,331	[3]
Loans charged -off	(6,429)		(5,279)		(4,810)
Recoveries	2,384		2,137		2,054
Ending Balance	6,709		5,767		4,945
Unallocated
Allowance for Loan Losses:
Beginning balance	1,722		1,685		2,180
Provision for loan losses	(258)	[1]	37	[2]	(495)	[3]
Loans charged -off	0		0		0
Recoveries	0		0		0
Ending Balance	$ 1,464		$ 1,722		$ 1,685
[1]	{F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOjE1Y2M2ZTQ3NTQ1MDQyYTViZjIyNjhkNzVkZWNmZjM0fFRleHRTZWxlY3Rpb246NTBFMDY5QTBBQjE0NDg0REQzRDk0NzJCN0U0MzQyMzQM}
[2]	{F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOjE1Y2M2ZTQ3NTQ1MDQyYTViZjIyNjhkNzVkZWNmZjM0fFRleHRTZWxlY3Rpb246Qjg0REI4QjVFOTZCRjBGNDk0REU0NzJCN0U0MzhFOTQM}
[3]	{F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOjE1Y2M2ZTQ3NTQ1MDQyYTViZjIyNjhkNzVkZWNmZjM0fFRleHRTZWxlY3Rpb246NDhFRURCRDc2MjdGRDBGQjk3RDc0NzJCN0U0MzcyMzkM}

ALLOWANCE FOR LOAN LOSSES_ (D67

ALLOWANCE FOR LOAN LOSSES: (Details 1) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Ending Balance Attributable to Loans
Individually evaluated for impairment	$ 625	$ 331
Collectively evaluated for impairment	19,284	18,442
BALANCE AT END OF YEAR	19,909	18,773	$ 19,946	$ 18,839
Loans
Individually evaluated for impairment	10,082	8,600
Collectively evaluated for impairment	1,901,080	1,831,594
BALANCE AT END OF YEAR	1,913,022	1,845,040
Commercial
Ending Balance Attributable to Loans
Individually evaluated for impairment	619	242
Collectively evaluated for impairment	9,662	9,489
BALANCE AT END OF YEAR	10,281	9,731	11,482	10,915
Loans
Individually evaluated for impairment	9,619	8,051
Collectively evaluated for impairment	1,134,701	1,101,269
BALANCE AT END OF YEAR	1,146,180	1,112,735
Residential
Ending Balance Attributable to Loans
Individually evaluated for impairment	6	89
Collectively evaluated for impairment	1,449	1,464
BALANCE AT END OF YEAR	1,455	1,553	1,834	1,374
Loans
Individually evaluated for impairment	463	549
Collectively evaluated for impairment	436,944	423,099
BALANCE AT END OF YEAR	437,407	425,079
Consumer
Ending Balance Attributable to Loans
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	6,709	5,767
BALANCE AT END OF YEAR	6,709	5,767	4,945	4,370
Loans
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	329,435	307,226
BALANCE AT END OF YEAR	329,435	307,226
Unallocated
Ending Balance Attributable to Loans
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	1,464	1,722
BALANCE AT END OF YEAR	1,464	1,722	$ 1,685	$ 2,180
Acquired with deteriorated credit quality
Ending Balance Attributable to Loans
Acquired with deteriorated credit quality	0	0
Loans
Acquired with deteriorated credit quality	1,860	4,846
Acquired with deteriorated credit quality | Commercial
Ending Balance Attributable to Loans
Acquired with deteriorated credit quality	0	0
Loans
Acquired with deteriorated credit quality	1,860	3,415
Acquired with deteriorated credit quality | Residential
Ending Balance Attributable to Loans
Acquired with deteriorated credit quality	0	0
Loans
Acquired with deteriorated credit quality	0	1,431
Acquired with deteriorated credit quality | Consumer
Ending Balance Attributable to Loans
Acquired with deteriorated credit quality	0	0
Loans
Acquired with deteriorated credit quality	0	0
Acquired with deteriorated credit quality | Unallocated
Ending Balance Attributable to Loans
Acquired with deteriorated credit quality	$ 0	$ 0

ALLOWANCE FOR LOAN LOSSES_ (D68

ALLOWANCE FOR LOAN LOSSES: (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Unpaid principal balance
With no related allowance recorded	$ 0	$ 0
TOTAL	10,283	9,107
Recorded Investment
With no related allowance recorded:	0	0
With an allowance recorded:	4,507	1,718
TOTAL	10,082	8,600
Allowance for loan losses
Allowance for Loan Losses Allocated	625	331
Average recorded investment
With no related allowance recorded:	0	0	$ 0
TOTAL	8,663	9,343	13,157
Interest Income Recognized
With no related allowance recorded:	0	0	0
TOTAL	0	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
TOTAL	0	0	0
Commercial & Industrial
Unpaid principal balance
With no related allowance recorded	802	1,181
With an allowance recorded	493	537
Recorded Investment
With no related allowance recorded:	802	1,181
With an allowance recorded:	493	537
Allowance for loan losses
Allowance for Loan Losses Allocated	146	36
Average recorded investment
With no related allowance recorded:	971	981	1,796
With an allowance recorded:	514	819	3,463
Interest Income Recognized
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
With no related allowance recorded:	0	0	0
Farmland
Unpaid principal balance
With no related allowance recorded	930	826
With an allowance recorded	3,035	0
Recorded Investment
With no related allowance recorded:	930	826
With an allowance recorded:	3,035	0
Allowance for loan losses
Allowance for Loan Losses Allocated	268	0
Average recorded investment
With no related allowance recorded:	1,265	770	0
With an allowance recorded:	669	0	0
Interest Income Recognized
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
With no related allowance recorded:	0	0	0
Non Farm, Non Residential
Unpaid principal balance
With no related allowance recorded	2,461	3,368
With an allowance recorded	0	657
Recorded Investment
With no related allowance recorded:	2,461	2,996
With an allowance recorded:	0	657
Allowance for loan losses
Allowance for Loan Losses Allocated	0	206
Average recorded investment
With no related allowance recorded:	2,781	3,096	2,080
With an allowance recorded:	131	1,016	3,682
Interest Income Recognized
With no related allowance recorded:	0	0	0
With an allowance recorded:
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
With no related allowance recorded:	0	0	0
Agriculture
Unpaid principal balance
With no related allowance recorded	123	622
With an allowance recorded	738	0
Recorded Investment
With no related allowance recorded:	123	487
With an allowance recorded:	537	0
Allowance for loan losses
Allowance for Loan Losses Allocated	205	0
Average recorded investment
With no related allowance recorded:	239	351	0
With an allowance recorded:	279	114	0
Interest Income Recognized
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
With no related allowance recorded:	0	0	0
All Other Commercial
Unpaid principal balance
With no related allowance recorded	1,238	1,367
With an allowance recorded	0	0
Recorded Investment
With no related allowance recorded:	1,238	1,367
With an allowance recorded:	0	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0	0
Average recorded investment
With no related allowance recorded:	1,308	1,477	1,175
With an allowance recorded:	0	45	483
Interest Income Recognized
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
With no related allowance recorded:	0	0	0
First Liens
Unpaid principal balance
With no related allowance recorded	21	25
With an allowance recorded	442	524
Recorded Investment
With no related allowance recorded:	21	25
With an allowance recorded:	442	524
Allowance for loan losses
Allowance for Loan Losses Allocated	6	89
Average recorded investment
With no related allowance recorded:	23	27	18
With an allowance recorded:	483	647	460
Interest Income Recognized
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
With no related allowance recorded:	0	0	0
Home Equity
Unpaid principal balance
With no related allowance recorded	0	0
With an allowance recorded	0	0
Recorded Investment
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0	0
Average recorded investment
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Interest Income Recognized
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
With no related allowance recorded:	0	0	0
Junior Liens
Unpaid principal balance
With an allowance recorded	0	0
Recorded Investment
With an allowance recorded:	0	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0	0
Average recorded investment
With an allowance recorded:	0	0
Interest Income Recognized
With an allowance recorded:	0	0	0
Cash Basis Interest Income Recognized
With no related allowance recorded:	0	0	0
Multifamily
Unpaid principal balance
With no related allowance recorded	0	0
With an allowance recorded	0	0
Recorded Investment
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0	0
Average recorded investment
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Interest Income Recognized
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
With no related allowance recorded:	0	0	0
All Other Residential
Unpaid principal balance
With no related allowance recorded	0	0
With an allowance recorded	0	0
Recorded Investment
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0	0
Average recorded investment
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Interest Income Recognized
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
With no related allowance recorded:	0	0	0
Motor Vehicle
Unpaid principal balance
With no related allowance recorded	0	0
With an allowance recorded	0	0
Recorded Investment
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0	0
Average recorded investment
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Interest Income Recognized
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
With no related allowance recorded:	0	0	0
All Other Consumer
Unpaid principal balance
With no related allowance recorded	0	0
With an allowance recorded	0	0
Recorded Investment
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0	0
Average recorded investment
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Interest Income Recognized
With no related allowance recorded:	0	0	0
With an allowance recorded:	0	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0	0
With no related allowance recorded:	$ 0	$ 0	$ 0

ALLOWANCE FOR LOAN LOSSES_ (D69

ALLOWANCE FOR LOAN LOSSES: (Details 3) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable, Modifications, Recorded Investment	$ 7,034	$ 8,565	$ 9,860	$ 14,758
Nonperforming Financing Receivable
Aging of recorded investment in loans by past due category and class of loans
Loans Past Due Over 90 Day Still Accruing	1,484	669
Financing Receivable, Modifications, Recorded Investment	3,349	3,798
Financing Receivable, Modifications, Nonaccrual	3,754	4,836
Non-accrual	13,245	13,492
Nonperforming Financing Receivable | Commercial & Industrial
Aging of recorded investment in loans by past due category and class of loans
Loans Past Due Over 90 Day Still Accruing	41	45
Financing Receivable, Modifications, Recorded Investment	2	3
Financing Receivable, Modifications, Nonaccrual	212	383
Non-accrual	1,679	2,405
Nonperforming Financing Receivable | Farmland
Aging of recorded investment in loans by past due category and class of loans
Loans Past Due Over 90 Day Still Accruing	19	0
Financing Receivable, Modifications, Recorded Investment	0	0
Financing Receivable, Modifications, Nonaccrual	0	0
Non-accrual	4,141	978
Nonperforming Financing Receivable | Non Farm, Non Residential
Aging of recorded investment in loans by past due category and class of loans
Loans Past Due Over 90 Day Still Accruing	0	0
Financing Receivable, Modifications, Recorded Investment	56	60
Financing Receivable, Modifications, Nonaccrual	2,440	2,941
Non-accrual	172	1,027
Nonperforming Financing Receivable | Agriculture
Aging of recorded investment in loans by past due category and class of loans
Loans Past Due Over 90 Day Still Accruing	0	0
Financing Receivable, Modifications, Recorded Investment	0	0
Financing Receivable, Modifications, Nonaccrual	0	0
Non-accrual	707	744
Nonperforming Financing Receivable | All Other Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans Past Due Over 90 Day Still Accruing	0	0
Financing Receivable, Modifications, Recorded Investment	0	0
Financing Receivable, Modifications, Nonaccrual	0	0
Non-accrual	1,236	1,380
Nonperforming Financing Receivable | First Liens
Aging of recorded investment in loans by past due category and class of loans
Loans Past Due Over 90 Day Still Accruing	1,011	276
Financing Receivable, Modifications, Recorded Investment	3,105	3,525
Financing Receivable, Modifications, Nonaccrual	575	995
Non-accrual	3,972	5,496
Nonperforming Financing Receivable | Home Equity
Aging of recorded investment in loans by past due category and class of loans
Loans Past Due Over 90 Day Still Accruing	8	0
Financing Receivable, Modifications, Recorded Investment	0	0
Financing Receivable, Modifications, Nonaccrual	0	0
Non-accrual	249	285
Nonperforming Financing Receivable | Junior Liens
Aging of recorded investment in loans by past due category and class of loans
Loans Past Due Over 90 Day Still Accruing	137	55
Financing Receivable, Modifications, Recorded Investment	0	0
Financing Receivable, Modifications, Nonaccrual	0	0
Non-accrual	134	202
Nonperforming Financing Receivable | Multifamily
Aging of recorded investment in loans by past due category and class of loans
Loans Past Due Over 90 Day Still Accruing	0	0
Financing Receivable, Modifications, Recorded Investment	0	0
Financing Receivable, Modifications, Nonaccrual	0	0
Non-accrual	0	0
Nonperforming Financing Receivable | All Other Residential
Aging of recorded investment in loans by past due category and class of loans
Loans Past Due Over 90 Day Still Accruing	0	0
Financing Receivable, Modifications, Recorded Investment	0	0
Financing Receivable, Modifications, Nonaccrual	0	0
Non-accrual	90	94
Nonperforming Financing Receivable | Motor Vehicle
Aging of recorded investment in loans by past due category and class of loans
Loans Past Due Over 90 Day Still Accruing	268	293
Financing Receivable, Modifications, Recorded Investment	9	60
Financing Receivable, Modifications, Nonaccrual	0	0
Non-accrual	242	140
Nonperforming Financing Receivable | All Other Consumer
Aging of recorded investment in loans by past due category and class of loans
Loans Past Due Over 90 Day Still Accruing	0	0
Financing Receivable, Modifications, Recorded Investment	177	150
Financing Receivable, Modifications, Nonaccrual	527	517
Non-accrual	$ 623	$ 741

ALLOWANCE FOR LOAN LOSSES_ ALLO

ALLOWANCE FOR LOAN LOSSES: ALLOWANCE FOR LOAN LOSSES: (Details 4) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Impaired, Troubled Debt Restructuring [Roll Forward]
January 1	$ 8,565	$ 9,860	$ 14,758
Added	613	492	1,090
Charged Off	(430)	(391)	(117)
Payments	(1,714)	(1,396)	(5,871)
December 31	7,034	8,565	9,860
Commercial
Financing Receivable, Impaired, Troubled Debt Restructuring [Roll Forward]
January 1	3,386	3,584	8,955
Added	0	0	0
Charged Off	0	0	0
Payments	(677)	(198)	(5,371)
December 31	2,709	3,386	3,584
Residential
Financing Receivable, Impaired, Troubled Debt Restructuring [Roll Forward]
January 1	4,447	5,593	5,189
Added	227	123	748
Charged Off	(289)	(321)	(65)
Payments	(774)	(948)	(279)
December 31	3,611	4,447	5,593
Consumer
Financing Receivable, Impaired, Troubled Debt Restructuring [Roll Forward]
January 1	732	683	614
Added	386	369	342
Charged Off	(141)	(70)	(52)
Payments	(263)	(250)	(221)
December 31	$ 714	$ 732	$ 683

ALLOWANCE FOR LOAN LOSSES_ (D71

ALLOWANCE FOR LOAN LOSSES: (Details 5) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	$ 21,305	$ 15,501
Current	1,891,717	1,829,539
BALANCE AT END OF YEAR	1,913,022	1,845,040
Commercial & Industrial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	1,092	1,683
Current	474,709	474,406
BALANCE AT END OF YEAR	475,801	476,089
Farmland
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	4,012	303
Current	104,457	110,897
BALANCE AT END OF YEAR	108,469	111,200
Non Farm, Non Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	141	368
Current	200,804	195,120
BALANCE AT END OF YEAR	200,945	195,488
Agriculture
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	702	713
Current	152,388	151,059
BALANCE AT END OF YEAR	153,090	151,772
All Other Commercial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	15
Current	207,875	178,171
BALANCE AT END OF YEAR	207,875	178,186
First Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	8,218	6,332
Current	247,029	264,446
BALANCE AT END OF YEAR	255,247	270,778
Home Equity
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	364	277
Current	35,752	35,782
BALANCE AT END OF YEAR	36,116	36,059
Junior Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	574	495
Current	41,688	36,912
BALANCE AT END OF YEAR	42,262	37,407
Multifamily
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	0
Current	90,141	67,799
BALANCE AT END OF YEAR	90,141	67,799
All Other Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	312	54
Current	13,329	12,982
BALANCE AT END OF YEAR	13,641	13,036
Motor Vehicle
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	5,761	5,093
Current	298,211	277,604
BALANCE AT END OF YEAR	303,972	282,697
All Other Consumer
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	129	168
Current	25,334	24,361
BALANCE AT END OF YEAR	25,463	24,529
30 to 59 Days Past Due
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	12,223	9,571
30 to 59 Days Past Due | Commercial & Industrial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	372	370
30 to 59 Days Past Due | Farmland
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	341	235
30 to 59 Days Past Due | Non Farm, Non Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	141	153
30 to 59 Days Past Due | Agriculture
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	141	246
30 to 59 Days Past Due | All Other Commercial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	15
30 to 59 Days Past Due | First Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	5,467	3,862
30 to 59 Days Past Due | Home Equity
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	310	186
30 to 59 Days Past Due | Junior Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	274	271
30 to 59 Days Past Due | Multifamily
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	0
30 to 59 Days Past Due | All Other Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	300	42
30 to 59 Days Past Due | Motor Vehicle
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	4,770	4,048
30 to 59 Days Past Due | All Other Consumer
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	107	143
60 to 89 Days Past Due
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	2,268	1,920
60 to 89 Days Past Due | Commercial & Industrial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	80	114
60 to 89 Days Past Due | Farmland
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	22
60 to 89 Days Past Due | Non Farm, Non Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	0
60 to 89 Days Past Due | Agriculture
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	0
60 to 89 Days Past Due | All Other Commercial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	0
60 to 89 Days Past Due | First Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	1,317	954
60 to 89 Days Past Due | Home Equity
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	46	64
60 to 89 Days Past Due | Junior Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	106	0
60 to 89 Days Past Due | Multifamily
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	0
60 to 89 Days Past Due | All Other Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	12
60 to 89 Days Past Due | Motor Vehicle
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	697	732
60 to 89 Days Past Due | All Other Consumer
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	22	22
Greater than 90 Days Past Due
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	6,814	4,010
Greater than 90 Days Past Due | Commercial & Industrial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	640	1,199
Greater than 90 Days Past Due | Farmland
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	3,671	46
Greater than 90 Days Past Due | Non Farm, Non Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	215
Greater than 90 Days Past Due | Agriculture
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	561	467
Greater than 90 Days Past Due | All Other Commercial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	0
Greater than 90 Days Past Due | First Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	1,434	1,516
Greater than 90 Days Past Due | Home Equity
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	8	27
Greater than 90 Days Past Due | Junior Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	194	224
Greater than 90 Days Past Due | Multifamily
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	0
Greater than 90 Days Past Due | All Other Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	12	0
Greater than 90 Days Past Due | Motor Vehicle
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	294	313
Greater than 90 Days Past Due | All Other Consumer
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	$ 0	$ 3

ALLOWANCE FOR LOAN LOSSES_ (D72

ALLOWANCE FOR LOAN LOSSES: (Details 6) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Analysis of risk category of loans by class of loans
Total loans	$ 1,903,609	$ 1,835,974
Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	474,500	474,904
Farmland
Analysis of risk category of loans by class of loans
Total loans	106,596	109,185
Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans	200,502	195,085
Agriculture
Analysis of risk category of loans by class of loans
Total loans	150,936	149,535
All Other Commercial
Analysis of risk category of loans by class of loans
Total loans	206,956	177,473
First Liens
Analysis of risk category of loans by class of loans
Total loans	254,384	269,948
Home Equity
Analysis of risk category of loans by class of loans
Total loans	36,036	36,003
Junior Liens
Analysis of risk category of loans by class of loans
Total loans	42,155	37,315
Multifamily
Analysis of risk category of loans by class of loans
Total loans	89,972	67,643
All Other Residential
Analysis of risk category of loans by class of loans
Total loans	13,596	13,002
Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans	302,631	281,465
All Other Consumer
Analysis of risk category of loans by class of loans
Total loans	25,345	24,416
Pass
Analysis of risk category of loans by class of loans
Total loans	1,140,885	1,092,587
Pass | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	430,015	427,262
Pass | Farmland
Analysis of risk category of loans by class of loans
Total loans	88,338	95,115
Pass | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans	179,181	172,739
Pass | Agriculture
Analysis of risk category of loans by class of loans
Total loans	111,724	121,983
Pass | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans	194,170	163,492
Pass | First Liens
Analysis of risk category of loans by class of loans
Total loans	45,320	43,674
Pass | Home Equity
Analysis of risk category of loans by class of loans
Total loans	319	363
Pass | Junior Liens
Analysis of risk category of loans by class of loans
Total loans	1,882	1,826
Pass | Multifamily
Analysis of risk category of loans by class of loans
Total loans	89,936	66,133
Pass | All Other Residential
Analysis of risk category of loans by class of loans
Total loans	0	0
Pass | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans	0	0
Pass | All Other Consumer
Analysis of risk category of loans by class of loans
Total loans	0	0
Special Mention
Analysis of risk category of loans by class of loans
Total loans	59,391	47,868
Special Mention | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	19,889	16,286
Special Mention | Farmland
Analysis of risk category of loans by class of loans
Total loans	10,782	8,300
Special Mention | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans	7,689	5,745
Special Mention | Agriculture
Analysis of risk category of loans by class of loans
Total loans	17,482	13,885
Special Mention | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans	2,723	596
Special Mention | First Liens
Analysis of risk category of loans by class of loans
Total loans	750	1,541
Special Mention | Home Equity
Analysis of risk category of loans by class of loans
Total loans	0	0
Special Mention | Junior Liens
Analysis of risk category of loans by class of loans
Total loans	76	85
Special Mention | Multifamily
Analysis of risk category of loans by class of loans
Total loans	0	1,430
Special Mention | All Other Residential
Analysis of risk category of loans by class of loans
Total loans	0	0
Special Mention | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans	0	0
Special Mention | All Other Consumer
Analysis of risk category of loans by class of loans
Total loans	0	0
Substandard
Analysis of risk category of loans by class of loans
Total loans	73,784	74,699
Substandard | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	18,611	25,177
Substandard | Farmland
Analysis of risk category of loans by class of loans
Total loans	7,466	5,238
Substandard | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans	13,632	16,601
Substandard | Agriculture
Analysis of risk category of loans by class of loans
Total loans	21,388	12,301
Substandard | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans	7,459	10,058
Substandard | First Liens
Analysis of risk category of loans by class of loans
Total loans	3,980	4,466
Substandard | Home Equity
Analysis of risk category of loans by class of loans
Total loans	64	86
Substandard | Junior Liens
Analysis of risk category of loans by class of loans
Total loans	342	401
Substandard | Multifamily
Analysis of risk category of loans by class of loans
Total loans	0	15
Substandard | All Other Residential
Analysis of risk category of loans by class of loans
Total loans	67	0
Substandard | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans	731	331
Substandard | All Other Consumer
Analysis of risk category of loans by class of loans
Total loans	44	25
Doubtful
Analysis of risk category of loans by class of loans
Total loans	143	569
Doubtful | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	38	449
Doubtful | Farmland
Analysis of risk category of loans by class of loans
Total loans	0	0
Doubtful | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans	0	0
Doubtful | Agriculture
Analysis of risk category of loans by class of loans
Total loans	0	0
Doubtful | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans	0	76
Doubtful | First Liens
Analysis of risk category of loans by class of loans
Total loans	5	18
Doubtful | Home Equity
Analysis of risk category of loans by class of loans
Total loans	0	0
Doubtful | Junior Liens
Analysis of risk category of loans by class of loans
Total loans	100	26
Doubtful | Multifamily
Analysis of risk category of loans by class of loans
Total loans	0	0
Doubtful | All Other Residential
Analysis of risk category of loans by class of loans
Total loans	0	0
Doubtful | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans	0	0
Doubtful | All Other Consumer
Analysis of risk category of loans by class of loans
Total loans	0	0
Not Rated
Analysis of risk category of loans by class of loans
Total loans	629,406	620,251
Not Rated | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	5,947	5,730
Not Rated | Farmland
Analysis of risk category of loans by class of loans
Total loans	10	532
Not Rated | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans	0	0
Not Rated | Agriculture
Analysis of risk category of loans by class of loans
Total loans	342	1,366
Not Rated | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans	2,604	3,251
Not Rated | First Liens
Analysis of risk category of loans by class of loans
Total loans	204,329	220,249
Not Rated | Home Equity
Analysis of risk category of loans by class of loans
Total loans	35,653	35,554
Not Rated | Junior Liens
Analysis of risk category of loans by class of loans
Total loans	39,755	34,977
Not Rated | Multifamily
Analysis of risk category of loans by class of loans
Total loans	36	65
Not Rated | All Other Residential
Analysis of risk category of loans by class of loans
Total loans	13,529	13,002
Not Rated | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans	301,900	281,134
Not Rated | All Other Consumer
Analysis of risk category of loans by class of loans
Total loans	$ 25,301	$ 24,391

ALLOWANCE FOR LOAN LOSSES_ (D73

ALLOWANCE FOR LOAN LOSSES: (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Allowance for Loan Losses:
Specific reserves allocated to troubled debt restructuring			$ 25
Impaired loans	$ 10,082	$ 8,600
Allowance for Loan Losses Allocated	625	331
Minimum outstanding balance of non-homogeneous loans to be individually evaluated as to credit risk	100
Covered Loans
Allowance for Loan Losses:
Loans Past Due Over 90 Day Still Accruing	88	80
Non-accrual	$ 62	$ 112
Minimum
Allowance for Loan Losses:
Loan modification, reduction of stated interest rate	12 months
Loan modification, extension of maturity date	12 months
Maximum
Allowance for Loan Losses:
Loan modification, reduction of stated interest rate	5 years
Loan modification, extension of maturity date	10 years

PREMISES AND EQUIPMENT_ (Detail

PREMISES AND EQUIPMENT: (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment, Gross [Abstract]
Land	$ 12,118	$ 12,265
Building and leasehold improvements	55,854	55,711
Furniture and Fixtures, Gross	46,399	44,608
Property Plant And Equipment Gross	114,371	112,584
Less accumulated depreciation	(66,099)	(63,344)
TOTAL	$ 48,272	$ 49,240

PREMISES AND EQUIPMENT_ (Deta75

PREMISES AND EQUIPMENT: (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment, Gross [Abstract]
Depreciation	$ 3,950	$ 4,340	$ 4,660
Rent expense	$ 1,000	$ 900	$ 900

PREMISES AND EQUIPMENT_ (Deta76

PREMISES AND EQUIPMENT: (Details 1) $ in Thousands	Dec. 31, 2017USD ($)
Property, Plant and Equipment, Gross [Abstract]
2,014	$ 920
2,015	546
2,016	382
2,017	198
2,018	158
Thereafter	1,019
Total future minimum payments due	$ 3,223

GOODWILL AND INTANGIBLE ASSET77

GOODWILL AND INTANGIBLE ASSETS: (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Goodwill Sold [Line Items]
Goodwill Sold	$ 5,100,000
Amortization of intangible assets	479,000	$ 627,000	$ 830,000
Customer list intangible
Goodwill Sold [Line Items]
Customer List Sold	$ 0.4

GOODWILL AND INTANGIBLE ASSET78

GOODWILL AND INTANGIBLE ASSETS: (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Gross Amount	$ 10,836	$ 10,836
Accumulated Amortization	9,206	8,727
Core deposit intangible
Finite-Lived Intangible Assets [Line Items]
Gross Amount	10,836	10,836
Accumulated Amortization	$ 9,206	$ 8,727

GOODWILL AND INTANGIBLE ASSET79

GOODWILL AND INTANGIBLE ASSETS: (Details 1) $ in Thousands	Dec. 31, 2017USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2,014	$ 434
2,015	350
2,016	252
2,017	232
2,018	$ 224

DEPOSITS_ (Details)

DEPOSITS: (Details) $ in Thousands	Dec. 31, 2017USD ($)
Maturities of Time Deposits [Abstract]
2,014	$ 181,508
2,015	68,985
2,016	40,919
2,017	20,227
2,018	$ 25,240

SHORT-TERM BORROWINGS_ (Details

SHORT-TERM BORROWINGS: (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Short Term Borrowings Disclosure [Abstract]
Federal funds purchased	$ 30,165	$ 49,982
Repurchase-agreements	27,521	31,007
Short-term borrowings	$ 57,686	$ 80,989

SHORT-TERM BORROWINGS_ (Detai82

SHORT-TERM BORROWINGS: (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase-agreements	$ 27,521	$ 31,007
Average amount outstanding	39,704	37,949
Maximum amount outstanding at a month end	$ 85,714	$ 80,989
Average interest rate during year (percent)	0.62%	0.35%
Interest rate at year-end (percent)	0.96%	0.64%
Maturity over 90 days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase-agreements	$ 758	$ 758
Maturity 30 to 90 Days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase-agreements	8,552	9,516
Maturity up to 30 days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase-agreements	6,282	9,495
Maturity Overnight [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase-agreements	$ 11,929	$ 11,238

OTHER BORROWINGS_ (Details)

OTHER BORROWINGS: (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Other Borrowings Disclosure [Abstract]
FHLB advances	$ 0	$ 132

OTHER BORROWINGS_ (Details 1)

OTHER BORROWINGS: (Details 1) $ in Thousands	Dec. 31, 2017USD ($)
Other Borrowings Disclosure [Abstract]
2,014	$ 0
2,015	0
2,016	0
2,017	0
2,018	0
Thereafter	0
Long-term Debt	$ 0

OTHER BORROWINGS_ (Details text

OTHER BORROWINGS: (Details textual) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
FHLB advances	$ 0	$ 132
General debt obligations, collateral pledged	120,100	$ 57,100
General debt obligations, maximum amount available	$ 223,400
Minimum
Debt Instrument [Line Items]
Branch of FHLB bank, interest rate (percent)	0.80%	0.50%
Maximum
Debt Instrument [Line Items]
Branch of FHLB bank, interest rate (percent)	6.60%	6.60%

INCOME TAXES_ (Details)

INCOME TAXES: (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Federal:
Currently payable	$ 8,303	$ 15,514	$ 9,890
Deferred	3,756	1,326	(774)
Federal tax reform	6,282
Federal income tax expense (benefit), continuing operations	18,341	16,840	9,116
State:
Currently payable	1,818	2,857	1,426
Deferred	463	186	(150)
State and local income tax expense (benefit), continuing operations	2,281	3,043	1,276
TOTAL	$ 20,622	$ 19,883	$ 10,392

INCOME TAXES_ (Details 1)

INCOME TAXES: (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Federal income taxes computed at the statutory rate	$ 17,414	$ 20,403	$ 14,206
Add (deduct) tax effect of:
Tax exempt income	(4,102)	(3,992)	(4,047)
THFF FSI non-deductable goodwill	0	1,797	0
ESOP dividend deduction	(102)	(47)	(164)
State tax, net of federal benefit	1,483	1,978	829
Affordable housing credits	(148)	(148)	(148)
Federal tax reform	6,282
Other, net	(205)	(108)	(284)
TOTAL	$ 20,622	$ 19,883	$ 10,392

INCOME TAXES_ (Details 2)

INCOME TAXES: (Details 2) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred tax assets:
Other than temporary impairment	$ 1,829	$ 5,397
Net unrealized losses on retirement plans	6,609	8,576
Net unrealized losses on securities available for sale	0	719
Loan loss provisions	5,195	7,318
Deferred compensation	3,661	5,881
Compensated absences	563	832
Post-retirement benefits	1,359	2,043
Deferred loss on acquisition	663	1,111
Other	2,123	3,119
GROSS DEFERRED ASSETS	22,002	34,996
Deferred tax liabilities:
Net unrealized gains on securities available-for-sale	(804)	0
Depreciation	(1,989)	(2,778)
Mortgage servicing rights	(308)	(486)
Pensions	(201)	(65)
Intangibles	(2,446)	(3,015)
Other	(2,408)	(3,180)
GROSS DEFERRED LIABILITIES	(8,156)	(9,524)
NET DEFERRED TAX ASSETS (LIABILITIES)	$ 13,846	$ 25,472

INCOME TAXES_ (Details 3)

INCOME TAXES: (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Reconciliation of Unrecognized Tax Benefits
Balance at January 1	$ 698	$ 513	$ 589
Additions based on tax positions related to the current year	257	288	68
Additions based on tax positions related to prior years	0	0	0
Reductions due to the statute of limitations	(130)	(103)	(144)
Balance at December 31	$ 825	$ 698	$ 513

INCOME TAXES_ (Details textual)

INCOME TAXES: (Details textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Federal statutory income tax rate (percent)	35.00%
Part of unrecognized tax benefits	$ 825	$ 698	$ 513	$ 589
Increase (decrease) in interest and penalities	4	4	17
Income tax examination, penalties and interest accrued	$ 40	$ 31	$ 27

FINANCIAL INSTRUMENTS WITH OF91

FINANCIAL INSTRUMENTS WITH OFF-BALANCE-SHEET RISK: (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Loss Contingencies [Line Items]
Other Commitments			$ 83,786,000	$ 66,408,000
TOTAL			387,701,000	390,347,000
Minimum
Loss Contingencies [Line Items]
Loans and Leases Receivable, Commitments, Fixed Rates	$ 0.0400	$ 0.0325
Maximum
Loss Contingencies [Line Items]
Loans and Leases Receivable, Commitments, Fixed Rates	$ 0.0725	$ 0.0700
Commercial Operating Lines
Loss Contingencies [Line Items]
TOTAL			246,855,000	268,577,000
Commercial letters of credit
Loss Contingencies [Line Items]
TOTAL			5,012,000	5,673,000
Home Equity
Loss Contingencies [Line Items]
TOTAL			$ 57,060,000	$ 55,362,000

FINANCIAL INSTRUMENTS WITH OF92

FINANCIAL INSTRUMENTS WITH OFF-BALANCE-SHEET RISK: (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Risks and Uncertainties [Abstract]
Notional amount of interest rate derivatives	$ 20.1	$ 21.3
Gain (loss) on interest rate derivative instruments not designated as hedging instruments	$ 0.2	$ 0.6

RETIREMENT PLANS_ (Details)

RETIREMENT PLANS: (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Retirement Benefits [Abstract]
Service cost - benefits earned	$ 1,432	$ 1,882	$ 2,153
Interest cost on projected benefit obligation	3,621	3,729	3,516
Expected return on plan assets	(3,940)	(3,429)	(3,452)
Net amortization and deferral	1,205	1,936	2,065
Net periodic pension cost	2,318	4,118	4,282
Net loss (gain) during the period	5,366	(6,150)	(1,894)
Amortization of prior service cost	1	1	1
Amortization of unrecognized gain (loss)	(1,204)	(1,935)	(2,064)
Total recognized in other comprehensive (income) loss	(4,161)	8,086	3,959
Total recognized net periodic pension cost and other comprehensive income	$ 6,479	$ (3,968)	$ 323

RETIREMENT PLANS_ (Details 1)

RETIREMENT PLANS: (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Retirement Benefits [Abstract]
Defined Benefit Plan, Benefit Obligation, Benefits Paid	$ 5,495	$ 6,072
Change in benefit obligation:
Benefit obligation at January 1	93,233	90,855
Service cost	1,432	1,882	$ 2,153
Interest cost	3,621	3,729	3,516
Actuarial (gain) loss	5,305	2,839
Benefits paid	(5,495)	(6,072)
Benefit obligation at December 31	98,096	93,233	90,855
Reconciliation of fair value of plan assets:
Fair value of plan assets at January 1	70,132	60,602
Actual return on plan assets	3,879	12,418
Employer contributions	2,933	3,184
Fair value of plan assets at December 31	71,449	70,132	$ 60,602
Funded status at December 31 (plan assets less benefit obligation)	$ (26,647)	$ (23,101)

RETIREMENT PLANS_ (Details 2)

RETIREMENT PLANS: (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2018
Retirement Benefits [Abstract]
Net loss (gain)	$ 25,621	$ 21,459
Prior service cost (credit)			$ 1
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Reclassification Adjustment, before Tax	3	4
Pension and other postretirement benefit plans, adjustment	$ 25,624	$ 21,463

RETIREMENT PLANS_ (Details 3)

RETIREMENT PLANS: (Details 3)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Principal assumptions used (benefit obligation):
Discount rate (percent)	3.60%	4.14%
Rate of increase in compensation levels (percent)	3.00%	3.00%
Principal assumptions used (net periodic benefit):
Discount rate	4.14%	4.34%
Rate of increase in compensation levels	3.00%	3.00%
Expected long-term rate of return on plan assets (percent)	6.00%	6.00%

RETIREMENT PLANS_ (Details 4)

RETIREMENT PLANS: (Details 4)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Defined Benefit Plan Disclosure [Line Items]
Schedule of Allocation of Plan Assets [Table Text Block]	The Corporation's pension plan weighted-average asset allocation for the years 2017 and 2016 by asset category are as follows: Pension Plan Target Allocation ESOP Target Allocation Pension Percentage of Plan Assets at December 31, ESOP Percentage of Plan Assets at December 31, ASSET CATEGORY 2017 2017 2017 2016 2017 2016 Equity securities 25-75% 95-99% 72 % 68 % 98 % 99 % Debt securities 0-50% 0-0% 25 % 29 % — % — % Other 0-20% 0-5% 3 % 3 % 2 % 1 % TOTAL 100 % 100 % 100 % 100 %
Percentage of plan assets (percent)	100.00%	100.00%
Employee Stock Ownership Plan
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (percent)	100.00%	100.00%
Other Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (percent)	3.00%	3.00%
Other Securities [Member] | Employee Stock Ownership Plan
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (percent)	2.00%	1.00%
Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Schedule of Allocation of Plan Assets [Table Text Block]	0
Percentage of plan assets (percent)	72.00%	68.00%
Equity Securities | Employee Stock Ownership Plan
Defined Benefit Plan Disclosure [Line Items]
Schedule of Allocation of Plan Assets [Table Text Block]	0
Percentage of plan assets (percent)	98.00%	99.00%
Debt securities
Defined Benefit Plan Disclosure [Line Items]
Schedule of Allocation of Plan Assets [Table Text Block]	0
Percentage of plan assets (percent)	25.00%	29.00%
Debt securities | Employee Stock Ownership Plan
Defined Benefit Plan Disclosure [Line Items]
Schedule of Allocation of Plan Assets [Table Text Block]	0
Percentage of plan assets (percent)	0.00%	0.00%
Other Security Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Schedule of Allocation of Plan Assets [Table Text Block]	0
Other Security Investments [Member] | Employee Stock Ownership Plan
Defined Benefit Plan Disclosure [Line Items]
Schedule of Allocation of Plan Assets [Table Text Block]	0

RETIREMENT PLANS_ (Details 5)

RETIREMENT PLANS: (Details 5) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 71,449	$ 70,132	$ 60,602
Quoted Prices in Active Markets for Identical Assets - Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	60,732	58,566
Significant Other Observable Inputs - Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	10,717	11,566
Significant Observable Inputs - Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	48,152	51,170
Equity Securities | Quoted Prices in Active Markets for Identical Assets - Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	48,152	51,170
Equity Securities | Significant Other Observable Inputs - Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Equity Securities | Significant Observable Inputs - Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Debt securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	10,717	11,566
Debt securities | Quoted Prices in Active Markets for Identical Assets - Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Debt securities | Significant Other Observable Inputs - Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	10,717	11,566
Debt securities | Significant Observable Inputs - Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Investment Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	12,580	7,396
Investment Funds | Quoted Prices in Active Markets for Identical Assets - Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	12,580	7,396
Investment Funds | Significant Other Observable Inputs - Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Investment Funds | Significant Observable Inputs - Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0	$ 0

RETIREMENT PLANS_ (Details 6)

RETIREMENT PLANS: (Details 6) $ in Thousands	Dec. 31, 2017USD ($)
Retirement Benefits [Abstract]
2,014	$ 5,837
2,015	6,067
2,016	6,166
2,017	6,341
2,018	6,474
2019-2023	$ 35,078

RETIREMENT PLANS_ (Details 7)

RETIREMENT PLANS: (Details 7) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net loss (gain) during the period	$ 5,366	$ (6,150)	$ (1,894)
Amortization of prior service cost	(1)	(1)	(1)
Amortization of unrecognized gain (loss)	(1,204)	(1,935)	(2,064)
Total recognized in other comprehensive income (loss)	4,161	(8,086)	(3,959)
Supplemental Employee Retirement Plans, Defined Benefit
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net loss (gain) during the period	527	(511)	(255)
Amortization of prior service cost	0	0	0
Amortization of unrecognized gain (loss)	0	(57)	(88)
Total recognized in other comprehensive income (loss)	$ 527	$ (568)	$ (343)

RETIREMENT PLANS_ (Details 8)

RETIREMENT PLANS: (Details 8) $ in Thousands	Dec. 31, 2017USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
2,014	$ 5,837
2,015	6,067
2,016	6,166
2,017	6,341
2,018	6,474
2019-2023	35,078
Supplemental Employee Retirement Plans, Defined Benefit
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
2,014	0
2,015	180
2,016	352
2,017	343
2,018	334
2019-2023	$ 1,593

RETIREMENT PLANS_ (Details 9)

RETIREMENT PLANS: (Details 9) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Change in benefit obligation:
Benefit obligation at January 1	$ 93,233	$ 90,855
Service cost	1,432	1,882	$ 2,153
Interest cost	3,621	3,729	3,516
Actuarial (gain) loss	5,305	2,839
Defined Benefit Plan, Benefit Obligation, Benefits Paid	5,495	6,072
Benefit obligation at December 31	98,096	93,233	90,855
Funded status at December 31	(26,647)	(23,101)
Supplemental Employee Retirement Plans, Defined Benefit
Change in benefit obligation:
Benefit obligation at January 1	4,276	4,383
Service cost	53	55
Interest cost	172	186
Defined Benefit Plan, Benefit Obligation, Contributions by Plan Participant	75	69
Actuarial (gain) loss	83	(144)
Defined Benefit Plan, Benefit Obligation, Benefits Paid	298	273
Benefit obligation at December 31	4,361	4,276	$ 4,383
Funded status at December 31	$ 4,361	$ 4,276

RETIREMENT PLANS_ (Details 10)

RETIREMENT PLANS: (Details 10)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Retirement Benefits [Abstract]
Discount rate (percent)		3.60%	4.14%
Initial weighted health care cost trend rate (percent)		.05	.05
Ultimate health care cost trend rate (percent)	500.00%	500.00%
Year that the rate is assumed to stabilize and remain unchanged (percent)	2,018	2,017

RETIREMENT PLANS_ (Details 11)

RETIREMENT PLANS: (Details 11) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1,432	$ 1,882	$ 2,153
Interest cost	3,621	3,729	3,516
Recognized actuarial loss	5,305	2,839
Net periodic pension cost	2,318	4,118	4,282
Net loss (gain) during the period	5,366	(6,150)	(1,894)
Amortization of prior service cost	(1)	(1)	(1)
Total recognized in other comprehensive income (loss)	4,161	(8,086)	(3,959)
Total recognized net periodic pension cost and other comprehensive income	6,479	(3,968)	323
Postretirement Health Coverage [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	53	55	63
Interest cost	172	186	173
Net periodic pension cost	225	241	236
Net loss (gain) during the period	83	(144)	(200)
Total recognized in other comprehensive income (loss)	83	(144)	(200)
Total recognized net periodic pension cost and other comprehensive income	$ 308	$ 97	$ 36

RETIREMENT PLANS_ (Details 12)

RETIREMENT PLANS: (Details 12) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)
Retirement Benefits [Abstract]
Effect on total of service and interest cost components 1% Point Increase	$ 1
Effect on total of service and interest cost components 1% Point Decrease	1
Effect on post-retirement benefit obligation 1% Point Increase	25
Effect on post-retirement benefit obligation 1% Point Decrease	$ 23

RETIREMENT PLANS_ (Details 13)

RETIREMENT PLANS: (Details 13) $ in Thousands	Dec. 31, 2017USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
2,014	$ 5,837
2,015	6,067
2,016	6,166
2,017	6,341
2,018	6,474
2019-2023	35,078
Postretirement Health Coverage [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
2,014	264
2,015	266
2,016	274
2,017	265
2,018	279
2019-2023	$ 1,408

RETIREMENT PLANS_ (Details Text

RETIREMENT PLANS: (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Percentage Of Plan Assets	100.00%	100.00%
Employer contributions	$ 2,933	$ 3,184
Cash contributions to ESOP	(1,062)	(1,361)	$ (1,294)
Cash contributions to ESOP for employees no longer participating in plan	676	872	746
Amounts that will be amortized from accumulated other comprehensive income (loss) in next fiscal year				$ 1,700
Pension plans with accumulated benefit obligations in excess of plan assets, aggregate accumulated benefit obligation	93,300	88,500
Pension and other postretirement defined benefit plans, liabilities	4,400	3,600
Accumulated other comprehensive income (loss)	(14,704)	(14,164)	(9,401)
Prior service cost (credit)				1
First Financial Corporation Common Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan assets equity securities	$ 21,400	$ 26,700
Percentage of plan assets (percent)	30.00%	38.00%
Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Percentage Of Plan Assets	72.00%	68.00%
Debt securities
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Percentage Of Plan Assets	25.00%	29.00%
Other Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Percentage Of Plan Assets	3.00%	3.00%
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	$ 2,550	$ 2,700	1,840
Expected contributions to pension plan in 2014	$ 2,300
Employee Stock Ownership Plan
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Percentage Of Plan Assets	100.00%	100.00%
Cash contributions to ESOP	$ (813)
Employee Stock Ownership Plan | First Financial Corporation Common Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan assets equity securities	$ 3,800	$ 4,100
Employee Stock Ownership Plan | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Percentage Of Plan Assets	98.00%	99.00%
Employee Stock Ownership Plan | Debt securities
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Percentage Of Plan Assets	0.00%	0.00%
Employee Stock Ownership Plan | Other Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Percentage Of Plan Assets	2.00%	1.00%
Supplemental Employee Retirement Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Amounts that will be amortized from accumulated other comprehensive income (loss) in next fiscal year				$ 51
Pension expense	$ 321	$ 418	$ 437
Accumulated other comprehensive income (loss), after tax	859	332
Accumulated other comprehensive income (loss)	(257)	(174)
Postretirement Health Coverage [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected contributions to pension plan in 2014	264
Pension expense	$ 298	$ 273

STOCK BASED COMPENSATION_ (Deta

STOCK BASED COMPENSATION: (Details Textual) - USD ($) $ in Thousands	3 Months Ended			12 Months Ended		36 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2013	Feb. 05, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				3 years
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost	$ 706	$ 684	$ 700
Stock Incentive Plan 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, Capital Shares Reserved for Future Issuance (in shares)							700,000
Granted (shares)						149,069
Number of additional shares authorized (shares)				550,931
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (shares)				16,562,000	20,943,000
Vesting period				3 years
Total compensation cost not yet recognized, stock options				$ 741	$ 674
Total compensation cost not yet recognized, period for recognition				1 year 6 months
Options, vested in period, fair value				$ 900	$ 1,100
Restricted Stock | First Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase price of common stock (percent)				33.00%
Restricted Stock | Second Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase price of common stock (percent)				33.00%
Restricted Stock | Third Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase price of common stock (percent)				34.00%

STOCK BASED COMPENSATION_ (D109

STOCK BASED COMPENSATION: (Details) - Restricted Stock - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Shares Outstanding
Nonvested balance at January 1 (shares)	20,524	20,466
Granted during the year (shares)	16,562	20,943
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	(19,067)	(20,885)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	0	0
Novested balance at December 31 (shares)	18,019	20,524
Weighted Average Exercise Price
Nonvested balance at January 1	$ 32,830	$ 33,260
Granted during the year (usd per share)	46,700	32,350
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value	37,030	32,760
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested Options Forfeited, Weighted Average Grant Date Fair Value	0	0
Nonvested balance at December 31	$ 41,140	$ 32,830

OTHER COMPREHENSIVE INCOME (110

OTHER COMPREHENSIVE INCOME (LOSS)-AOCI (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance, January 1	$ (14,164)	$ (9,401)
Change in other comprehensive income before reclassification	(1,238)	(5,958)
Amounts reclassified from accumulated other comprehensive income	698	1,195
Net current period other comprehensive income (loss)	(540)	(4,763)
Ending balance, December 31	(14,704)	(14,164)
Unrealized Gains and Losses on Available-for-Sale Securities
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance, January 1	(1,077)	9,053
Change in other comprehensive income before reclassification	3,371	(10,109)
Amounts reclassified from accumulated other comprehensive income	(36)	(21)
Net current period other comprehensive income (loss)	3,335	(10,130)
Ending balance, December 31	2,258	(1,077)
Retirement Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance, January 1	(13,087)	(18,454)
Change in other comprehensive income before reclassification	(4,609)	4,151
Amounts reclassified from accumulated other comprehensive income	734	1,216
Net current period other comprehensive income (loss)	(3,875)	5,367
Ending balance, December 31	$ (16,962)	$ (13,087)

OTHER COMPREHENSIVE INCOME (111

OTHER COMPREHENSIVE INCOME (LOSS): (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance, January 1	$ (14,164)	$ (9,401)
Current Period Change	(540)	(4,763)
Ending balance, December 31	(14,704)	(14,164)
Unrealized Gains and Losses on Available-for-Sale Securities
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance, January 1	(1,077)	9,053
Current Period Change	3,335	(10,130)
Ending balance, December 31	2,258	(1,077)
Unrealized gains losses on securities available-for-sale without other than temporary impairment
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance, January 1	(3,018)	5,855
Current Period Change	1,647	(8,873)
Ending balance, December 31	(1,371)	(3,018)
Unrealized gains losses on securities available-for-sale with other than temporary impairment
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance, January 1	1,941	3,198
Current Period Change	1,688	(1,257)
Ending balance, December 31	3,629	1,941
Retirement Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance, January 1	(13,087)	(18,454)
Current Period Change	(3,875)	(5,367)
Ending balance, December 31	$ (16,962)	$ (13,087)

OTHER COMPREHENSIVE INCOME _ OT

OTHER COMPREHENSIVE INCOME : OTHER COMPREHENSIVE INCOME (LOSS)-Reclassifications (Details) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net securities gains (losses)										$ 59	$ 34	$ 17
Income tax expense										(20,622)	(19,883)	(10,392)
NET INCOME		$ 2,616	$ 8,794	$ 8,352	$ 9,369	$ 8,344	$ 8,162	$ 8,232	$ 13,675	29,131	38,413	30,196
Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
NET INCOME										(698)	(1,195)	(4,909)
Unrealized Gains and Losses on Available-for-Sale Securities | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net securities gains (losses)										59	34	17
Income tax expense										(23)	(13)	(6)
NET INCOME										36	21	11
Retirement Plans | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Change in funded status of post retirement benefits	[1]									(1,204)	(1,992)	(8,066)
Income tax expense										470	776	3,146
NET INCOME										$ (734)	$ (1,216)	$ (4,920)
[1]	Included in the computation of net periodic benefit cost which is included in salaries and benefits. (see Footnote 15 for additional details).

REGULATORY MATTERS_ (Details Te

REGULATORY MATTERS: (Details Textual) $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)
Banking and Thrift [Abstract]
Undistributed earnings	$ 42.1

REGULATORY MATTERS_ (Details)

REGULATORY MATTERS: (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Corporation [Member]
Capital [Abstract]
Capital	$ 412,525	$ 411,713
Capital to Risk Weighted Assets (percent)	17.88%	18.26%
Capital Required for Capital Adequacy	$ 213,446	$ 194,435
Capital Required for Capital Adequacy to Risk Weighted Assets (percent)	9.25%	8.625%
Common equity capital	$ 392,615	$ 392,939
Commen Equity Capital to Risk Weighted Assets	17.01%	17.43%
Common equity capital required for capital adequacy	$ 132,682	$ 115,534
Common Equity Capital required for Capital Adequacy to Risk Weighted Assets	5.75%	5.125%
Tier One Risk Based Capital [Abstract]
Tier One Risk Based Capital	$ 392,615	$ 392,939
Tier One Risk Based Capital to Risk Weighted Assets (percent)	17.01%	17.43%
Tier One Risk Based Capital Required for Capital Adequacy	$ 167,295	$ 149,348
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets (percent)	7.25%	6.625%
Tier One Leverage Capital [Abstract]
Tier One Leverage Capital	$ 392,615	$ 392,939
Tier One Leverage Capital to Average Assets (percent)	13.31%	13.39%
Tier One Leverage Capital Required for Capital Adequacy	$ 117,956	$ 117,376
Tier One Leverage Capital Required for Capital Adequacy to Average Assets (percent)	4.00%	4.00%
First Financial Bank [Member]
Capital [Abstract]
Capital	$ 386,593	$ 384,522
Capital to Risk Weighted Assets (percent)	17.30%	17.64%
Capital Required for Capital Adequacy	$ 206,745	$ 188,003
Capital Required for Capital Adequacy to Risk Weighted Assets (percent)	9.25%	8.625%
Capital Required to be Well Capitalized	$ 223,508	$ 217,974
Capital Required to be Well Capitalized to Risk Weighted Assets (percent)	10.00%	10.00%
Common equity capital	$ 370,061	$ 368,797
Commen Equity Capital to Risk Weighted Assets	16.56%	16.92%
Common equity capital required for capital adequacy	$ 128,517	$ 111,712
Common Equity Capital required for Capital Adequacy to Risk Weighted Assets	5.75%	5.125%
Common equity capital required to be well capitalized	$ 145,280	$ 141,683
Common Equity Capital required to be Well Capitalized to Risk Weighted Assets	6.50%	6.50%
Tier One Risk Based Capital [Abstract]
Tier One Risk Based Capital	$ 370,061	$ 368,797
Tier One Risk Based Capital to Risk Weighted Assets (percent)	16.56%	16.92%
Tier One Risk Based Capital Required for Capital Adequacy	$ 162,044	$ 144,408
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets (percent)	7.25%	6.625%
Tier One Risk Based Capital Required to be Well Capitalized	$ 178,807	$ 174,379
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets (percent)	8.00%	8.00%
Tier One Leverage Capital [Abstract]
Tier One Leverage Capital	$ 370,061	$ 368,797
Tier One Leverage Capital to Average Assets (percent)	12.81%	12.82%
Tier One Leverage Capital Required for Capital Adequacy	$ 115,553	$ 115,047
Tier One Leverage Capital Required for Capital Adequacy to Average Assets (percent)	4.00%	4.00%
Tier One Leverage Capital Required to be Well Capitalized	$ 144,441	$ 143,809
Tier One Leverage Capital Required to be Well Capitalized to Average Assets (percent)	5.00%	5.00%

PARENT COMPANY CONDENSED FIN115

PARENT COMPANY CONDENSED FINANCIAL STATEMENTS: (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
ASSETS
Cash deposits in affiliated banks	$ 74,107	$ 75,012
Land and headquarters building, net	48,272	49,240
Other	30,333	37,789
TOTAL ASSETS	3,000,668	2,988,527
LIABILITIES AND SHAREHOLDERS' EQUITY
Other liabilities	70,760	64,485
TOTAL LIABILITIES	2,587,099	2,574,132
Shareholders' Equity	413,569	414,395	$ 410,316	$ 394,214
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	3,000,668	2,988,527
Parent
ASSETS
Cash deposits in affiliated banks	3,198	2,765
Investments in subsidiaries	414,839	416,024
Land and headquarters building, net	5,193	5,388
TOTAL ASSETS	423,230	424,177
LIABILITIES AND SHAREHOLDERS' EQUITY
Dividends payable	6,234	6,104
Other liabilities	3,427	3,678
TOTAL LIABILITIES	9,661	9,782
Shareholders' Equity	413,569	414,395
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 423,230	$ 424,177

PARENT COMPANY CONDENSED FIN116

PARENT COMPANY CONDENSED FINANCIAL STATEMENTS: (Details 1) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Condensed Financial Statements, Captions [Line Items]
Income tax benefit									$ (20,622)	$ (19,883)	$ (10,392)
NET INCOME	$ 2,616	$ 8,794	$ 8,352	$ 9,369	$ 8,344	$ 8,162	$ 8,232	$ 13,675	29,131	38,413	30,196
Comprehensive Income (Loss), Net of Tax, Attributable to Parent									28,591	33,650	35,324
Parent
Condensed Financial Statements, Captions [Line Items]
Dividends from subsidiaries									30,814	31,781	19,397
Other income									720	722	795
Other operating expenses									(2,647)	(2,581)	(2,314)
Income before income taxes and equity in undistributed earnings of subsidiaries									28,887	29,922	17,878
Income tax benefit									889	821	815
Income before equity in undistributed earnings of subsidiaries									29,776	30,743	18,693
Equity in undistributed earnings of subsidiaries									(645)	7,670	11,503
NET INCOME									$ 29,131	$ 38,413	$ 30,196

PARENT COMPANY CONDENSED FIN117

PARENT COMPANY CONDENSED FINANCIAL STATEMENTS: (Details 2) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 2,616	$ 8,794	$ 8,352	$ 9,369	$ 8,344	$ 8,162	$ 8,232	$ 13,675	$ 29,131	$ 38,413	$ 30,196
Adjustments to reconcile net income to net cash provided by operating activities:
Contribution of shares to ESOP									1,062	1,361	1,294
CASH FLOWS FROM FINANCING ACTIVITIES:
Purchases of treasury stock									(503)	(19,396)	(8,698)
Dividends paid									(30,556)	(12,359)	(12,632)
NET CHANGE IN CASH AND CASH EQUIVALENTS									(905)	(13,683)	10,593
CASH AND DUE FROM BANKS, BEGINNING OF YEAR				75,012				88,695	75,012	88,695	78,102
CASH AND DUE FROM BANKS, END OF YEAR	74,107				75,012				74,107	75,012	88,695
Supplemental disclosures of cash flow information:
Interest									6,337	4,432	4,237
Income Taxes									11,158	18,739	12,869
Parent
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income									29,131	38,413	30,196
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization									195	200	203
Equity in undistributed earnings									645	(7,670)	(11,503)
Contribution of shares to ESOP									1,062	1,361	1,294
Restricted stock compensation									706	684	684
Increase (decrease) in other liabilities									(247)	(262)	(1,524)
(Increase) decrease in other assets									0	12	188
NET CASH FROM OPERATING ACTIVITIES									31,492	32,738	19,538
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of furniture and fixtures									0	0	(65)
NET CASH FROM INVESTING ACTIVITIES									0	0	(65)
CASH FLOWS FROM FINANCING ACTIVITIES:
Purchases of treasury stock									(503)	(19,396)	(8,698)
Dividends paid									(30,556)	(12,359)	(12,632)
NET CASH FROM FINANCING ACTIVITES									(31,059)	(31,755)	(21,330)
NET CHANGE IN CASH AND CASH EQUIVALENTS									433	983	(1,857)
CASH AND DUE FROM BANKS, BEGINNING OF YEAR				$ 2,765				$ 1,782	2,765	1,782	3,639
CASH AND DUE FROM BANKS, END OF YEAR	$ 3,198				$ 2,765				3,198	2,765	1,782
Supplemental disclosures of cash flow information:
Interest									0	0	0
Income Taxes									$ 11,158	$ 18,739	$ 12,869

SELECTED QUARTERLY DATA (UNA118

SELECTED QUARTERLY DATA (UNAUDITED): (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								9 Months Ended	12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Sep. 30, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Selected Quarterly Financial Information [Abstract]
After Tax Gain on Sale of certain assets and liabilities of Insurance Brokerage Operation				$ 5,750
Gain on Sale of certain assets and liabilities of Insurance Brokerage Operation		$ (199)							$ 12,800	$ 0	$ 12,822	$ 0
Interest Income	$ 29,416	28,805	$ 28,128	27,846	$ 27,579	$ 27,450	$ 27,150	$ 27,201
Interest Expense	1,734	1,697	1,568	1,339	1,173	1,099	1,091	1,044		6,338	4,407	4,169
NET INTEREST INCOME	27,682	27,108	26,560	26,507	26,406	26,351	26,059	26,157		107,857	104,973	104,507
Provision For Loan Losses	1,474	1,185	1,040	1,596	939	1,091	435	835		5,295	3,300	4,700
Net income	$ 2,616	$ 8,794	$ 8,352	$ 9,369	$ 8,344	$ 8,162	$ 8,232	$ 13,675		$ 29,131	$ 38,413	$ 30,196
Net Income Per Share (in dollars per share)	$ 0.21	$ 0.72	$ 0.68	$ 0.77	$ 0.69	$ 0.67	$ 0.68	$ 1.08		$ 2.38	$ 3.12	$ 2.35