First Financial (THFF) 10-K 11 Mar 21 2020 FY Annual report Financial data

Cover

Cover - USD ($)	12 Months Ended
	Dec. 31, 2020	Mar. 01, 2021	Jun. 30, 2020
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2020
Document Transition Report	false
Entity File Number	0-16759
Entity Registrant Name	FIRST FINANCIAL CORPORATION
Entity Incorporation, State or Country Code	IN
Entity Tax Identification Number	35-1546989
Entity Address, Address Line One	One First Financial Plaza
Entity Address, City or Town	Terre Haute
Entity Address, State or Province	IN
Entity Address, Postal Zip Code	47807
City Area Code	812
Local Phone Number	238-6000
Title of 12(b) Security	Common Stock, par value $0.125 per share
Trading Symbol	THFF
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 471,722,925
Entity Common Stock, Shares Outstanding		13,524,070
Documents Incorporated by Reference	Portions of the Definitive Proxy Statement for the First Financial Corporation Annual Meeting of Shareholders to be held April 21, 2021 are incorporated by reference into Part III.
Entity Central Index Key	0000714562
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	false
ICFR Auditor Attestation Flag	true

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
ASSETS
Cash and due from banks	$ 657,470	$ 127,426
Federal funds sold	301	7,500
Securities available-for-sale	1,020,744	926,717
Loans, net of allowance of $19,909 in 2017 and $18,773 in 2016	2,563,242	2,636,447
Restricted stock	14,812	15,394
Accrued interest receivable	16,957	18,523
Premises and equipment, net	62,063	62,576
Bank-owned life insurance	95,849	94,251
Goodwill	78,592	78,592
Other intangible assets	8,972	10,643
Other real estate owned	1,012	3,625
Other assets	37,530	41,556
TOTAL ASSETS	4,557,544	4,023,250
Deposits:
Non-interest-bearing	732,694	547,189
Interest-bearing:
Certificates of deposit that meet or exceed the FDIC insurance limit	107,764	126,738
Interest-bearing Domestic Deposit, Other	2,915,487	2,601,430
Total Deposits	3,755,945	3,275,357
Federal Funds Purchased and Securities Sold under Agreements to Repurchase	116,061	80,119
Other borrowings	5,859	30,973
Other liabilities	82,687	79,193
TOTAL LIABILITIES	3,960,552	3,465,642
Shareholders’ equity
Common stock, $1.25 stated value per share, Authorized shares- 40,000,000, Issued shares - 16,075,154 in 2020 and 16,055,466 in 2019, Outstanding shares - 13,558,511 in 2020 and 13,741,825 in 2019	2,007	2,005
Additional paid-in capital	140,820	139,694
Retained earnings	521,103	492,055
Accumulated other comprehensive income (loss)	9,764	(7,501)
Less: Treasury shares at cost-2,516,643 in 2020 and 2,313,641 in 2019	(76,702)	(68,645)
TOTAL SHAREHOLDERS’ EQUITY	596,992	557,608
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 4,557,544	$ 4,023,250

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Allowance for loan losses (in dollars)	$ 47,052	$ 19,943
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)	16,075,154	16,055,466
Common stock, Outstanding shares (shares)	13,558,511	13,741,825
Treasury stock (shares)	2,516,643	2,313,641

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
INTEREST AND DIVIDEND INCOME:
Loans, including related fees	$ 137,241	$ 124,788	$ 100,541
Securities:
Taxable	13,625	15,191	16,942
Tax-exempt	7,952	7,674	7,455
Other	1,667	1,468	1,286
TOTAL INTEREST AND DIVIDEND INCOME	160,485	149,121	126,224
INTEREST EXPENSE:
Interest Expense, Deposits	12,801	15,711	9,032
Short-term borrowings	568	1,105	501
Other borrowings	770	653	112
TOTAL INTEREST EXPENSE	14,139	17,469	9,645
NET INTEREST INCOME	146,346	131,652	116,579
Provision for credit loss expense	10,528	4,700	5,768
NET INTEREST INCOME AFTER PROVISION FOR CREDIT LOSSES	135,818	126,952	110,811
Trust And Financial Services Revenue	5,423	5,036	5,286
Service Charges And Fees On Deposit Accounts	10,256	11,795	11,733
Service Charges And Fees, Other	15,644	14,012	13,012
NON-INTEREST INCOME:
Securities gain (loss), net	233	44	2
Insurance commissions	158	133	144
Gain on sale of mortgage loans	6,626	2,573	1,829
Other	4,136	4,859	6,200
TOTAL NON-INTEREST INCOME	42,476	38,452	38,206
Labor and Related Expense	61,931	54,827	50,658
NON-INTEREST EXPENSES:
Occupancy expense	8,202	7,600	7,030
Equipment expense	10,568	8,244	6,827
Federal Deposit Insurance	316	693	929
Other	31,741	33,041	25,845
TOTAL NON-INTEREST EXPENSE	112,758	104,405	91,289
INCOME BEFORE INCOME TAXES	65,536	60,999	57,728
Provision for income taxes	11,692	12,127	11,145
NET INCOME	53,844	48,872	46,583
OTHER COMPREHENSIVE INCOME
Change in unrealized gains/losses on securities, net of reclassifications and taxes	19,269	20,998	(8,861)
Change in funded status of post-retirement benefits, net of taxes	(2,004)	(5,045)	2,477
COMPREHENSIVE INCOME	$ 71,109	$ 64,825	$ 40,199
EARNINGS PER SHARE:
BASIC AND DILUTED (in dollars per share)	$ 3.93	$ 3.80	$ 3.80
Weighted average number of shares outstanding (in shares)	13,716	12,865	12,256

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, 2017	$ 413,569	$ 1,822	$ 75,624	$ 420,275	$ (14,704)	$ (69,448)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	46,583	0	0	46,583	0	0
Other comprehensive income (loss)	(6,384)	0	0	0	(6,384)	0
Treasury Stock, Value, Acquired, Cost Method	(391)					(391)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	745	2	743	0	0	0
Employee Stock Ownership Plan (ESOP), Cash Contributions to ESOP	1,087	0	407	0	0	680
Cash Dividends	(12,508)	0	0	(12,508)	0	0
Balance at Dec. 31, 2018	442,701	1,824	76,774	456,716	(23,454)	(69,159)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	48,872	0	0	48,872	0	0
Other comprehensive income (loss)	15,953	0	0	0	15,953	0
Treasury Stock, Value, Acquired, Cost Method	(315)	0	0	0	0	(315)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	801	3	798	0	0	0
Employee Stock Ownership Plan (ESOP), Cash Contributions to ESOP	1,251	0	422	0	0	829
Cash Dividends	(13,533)	0	0	(13,533)	0	0
Balance at Dec. 31, 2019	557,608	2,005	139,694	492,055	(7,501)	(68,645)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	53,844	0	0	53,844	0	0
Other comprehensive income (loss)	17,265	0	0	0	17,265	0
Treasury Stock, Value, Acquired, Cost Method	(9,220)	0	0	0	0	(9,220)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	820	2	818	0	0	0
Employee Stock Ownership Plan (ESOP), Cash Contributions to ESOP	1,471	0	308	0	0	1,163
Cash Dividends	(14,313)	0	0	(14,313)	0	0
Balance at Dec. 31, 2020	$ 596,992	$ 2,007	$ 140,820	$ 521,103	$ 9,764	$ (76,702)

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Stockholders' Equity [Abstract]
Contribution to ESOP shares (shares)	39,029	28,470	23,250
Cash Dividends (in dollars per share)	$ 1.05	$ 1.04	$ 1.02

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income (Loss) Attributable to Parent	$ 53,844	$ 48,872	$ 46,583
Adjustments to reconcile net income to net cash provided by operating activities:
Net (accretion) amortization on securities	7,184	4,848	3,622
Provision for credit loss expense	10,528	4,700	5,768
Securities (gains) losses	(233)	(44)	(2)
Depreciation and amortization	6,092	4,826	4,164
Provision for deferred income taxes	(3,768)	(2,841)	(2,428)
Net change in accrued interest receivable	1,566	(903)	(1,057)
Contribution of shares to ESOP	1,471	1,251	1,087
Stock compensation expense	820	801	745
Gain on sale of mortgage loans	(6,626)	(2,573)	(1,829)
Loss (gain) on sales of other real estate	(761)	44	86
Origination of loans held for sale	(165,524)	(79,454)	(57,418)
Proceeds from loans held for sale	170,834	79,454	62,098
Other, net	1,998	(9,080)	(3,971)
NET CASH FROM OPERATING ACTIVITIES	77,425	49,901	57,448
CASH FLOWS FROM INVESTING ACTIVITIES:
Sales of securities available-for-sale	28,161	3,259	0
Calls, maturities and principal reductions on securities available-for-sale	260,631	181,763	143,157
Purchases of securities available-for-sale	(365,998)	(129,466)	(124,333)
Loans made to customers, net of payments	53,144	(47,169)	(52,905)
Net change in federal funds sold	7,199	(7,500)	0
Redemption of restricted stock	600	3,588	0
Purchase of restricted stock	(18)	(4,164)	(11)
Cash Acquired from Acquisition	0	(32,830)	0
Sale of other real estate	3,941	756	1,781
Additions to premises and equipment	(3,908)	(1,103)	(2,013)
NET CASH FROM INVESTING ACTIVITIES	(16,248)	(32,866)	(34,324)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net change in deposits	481,728	104,113	(21,926)
Proceeds from (Payments for) in Securities Sold under Agreements to Repurchase	35,942	(55,147)	11,970
Dividends paid	(14,273)	(12,648)	(12,496)
Purchases of treasury stock	(9,220)	(315)	(391)
Proceeds from FHLBank Borrowings, Financing Activities	16,700	217,000	115,600
Payments of FHLBank Borrowings, Financing Activities	42,010	217,000	115,600
NET CASH FROM FINANCING ACTIVITIES	468,867	36,003	(22,843)
NET CHANGE IN CASH AND CASH EQUIVALENTS	530,044	53,038	281
SUPPLEMENTAL DISCLOSURES OF CASH FLOW AND NONCASH INFORMATION:
Interest Paid, Excluding Capitalized Interest, Operating Activities	14,845	16,339	9,408
Income Taxes	7,549	9,595	7,185
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 657,470	$ 127,426	$ 74,388

BUSINESS AND SIGNIFICANT ACCOUN

BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES:	12 Months Ended
	Dec. 31, 2020
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 Chanticleer Corporation was dissolved in December 2020. 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, 2020, $747.9 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 81 branches in west-central Indiana, east-central Illinois, western Kentucky, and middle and western Tennessee. First Financial Bank is the largest bank in Vigo County. It operates ten full-service banking branches within the county; one in Daviess County, Indiana.; three in Clay 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; one in Wayne County, Illinois; two in Calloway County, Kentucky; three in Christian County, Kentucky; two in Fulton County, Kentucky; two in Marshall County, Kentucky; one in Todd County, Kentucky; one in Trigg County, Kentucky; three in Cheatham County, Tennessee; one in Houston County, Tennessee; and three in Montgomery County, Tennessee. There are three loan production offices, one in Marion County, Indiana; one in Rutherford County, Tennessee; and one in Williamson County, Tennessee. The bank 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. 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 $0.6 million, $0.5 million and $0.6 million for the years ended December 31, 2020, 2019 and 2018 respectively. Additionally, there was a non-cash transaction for lease liabilities arising from obtaining right-of-use assets of $6.7 million for the year ended December 31, 2019. 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 impairment related to credit losses 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 credit 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. Purchased Credit Deteriorated (PCD) Loans: The Corporation purchases individual loans and groups of loans, some of which have experienced more than insignificant credit deterioration since origination. PCD loans are recorded at the amount paid . An allowance for credit losses is determined using the same methodology as other loans held for investment. The initial allowance for credit losses determined on a collective basis is allocated to individual loans. The sum of the loan's purchase price and initial allowance for credit losses becomes its amortized cost basis. The difference between the initial amortized cost basis and the par value of the loan is a noncredit discount or premium, which is accreted or amortized into interest income over the life of the loan. Subsequent changes to the allowance for credit losses are recorded through provision for credit losses. Concentration of Credit Risk: Most of the Corporation's business activity is with customers located within west-central Indiana, east-central Illinois, western Kentucky, and middle and western Tennessee. 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 Credit Losses: Credit quality of loans is continuously monitored by management and is reflected within the allowance for credit losses for loans. The allowance for credit losses is an estimate of expected losses inherent within the Company’s loan portfolio. Credit quality is assessed and monitored by evaluating various attributes and the results of those evaluations are utilized in underwriting new loans and in our process for estimating expected credit losses. The allowance for credit losses is adjusted by a credit loss expense, which is reported in earnings, and reduced by the charge-off of loan amounts, net of recoveries. We have made a policy election to report accrued interest receivable as a separate line item on the balance sheet. The allowance for credit loss estimation process involves procedures to appropriately consider the unique characteristics of the loan portfolio segments. These segments are further disaggregated into loan classes based on the level at which credit risk is monitored. When computing the level of expected credit losses, credit loss assumptions are estimated using a model that categorizes loan pools based on loss history, delinquency status, and other credit trends and risk characteristics, including current conditions and reasonable and supportable forecasts about the future. Determining the appropriateness of the allowance is complex and requires judgment by management about the effect of matters that are inherently uncertain. In future periods evaluations of the overall loan portfolio, in light of the factors and forecasts then prevailing, may result in significant changes in the allowance and credit loss expense in those future periods. We utilize a cohort methodology to determine the allowance for credit losses. This method identifies and captures the balance of a pool of loans with similar risk characteristics at a particular point in time to form a cohort. Then it tracks the respective losses generated by that cohort of loans over their remaining life. When past performance may not be representative of future losses, loss rates are adjusted for qualitative and economic forecast factors. The allowance level is influenced by loan volumes, loan quality rating migration or delinquency status, changes in historical loss experience, and other conditions influencing loss expectations, such as reasonable and supportable forecasts of economic conditions. The methodology for estimating the amount of expected credit losses reported in the allowance for credit losses consists of specific and pooled components. The specific component relates to loans that are individually evaluated. A loan is individually evaluated when the loan no longer shares similar risk characteristics with other loans in its respective loan pool. If a loan is individually evaluated, a portion of the allowance is allocated so that the loan is reported at the fair value of collateral, adjusted for selling costs, if repayment is expected solely from the collateral. The pooled component covers pools of loans that share similar risk characteristics, and is based on historical loss experienced since 2008. This historical loss experience is supplemented with other current factors based on the risks present for each portfolio segment. These current factors include items such as changes in lending policies or procedures, asset specific risks, the impact of COVID-19 on customers’ operations, and economic uncertainty in forward-looking forecasts. Economic indicators utilized in forecasting include unemployment rate, gross domestic product, housing starts, and interest rates. We maintain an allowance for credit losses on unfunded lending commitments to provide for the risk of loss inherent in these arrangements. Unfunded commitments include funds available for disbursement on commercial and agriculture operating lines, commercial real estate and residential construction loans, and home equity lines of credit. The allowance is computed using a methodology similar to that used to determine the allowance for credit losses for loans, modified to take into account the probability of a drawdown on the commitment. The allowance for credit losses on unfunded commitments was $3.5 million at December 31, 2020. 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, 2020, 2019 and 2018. 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. With the decrease in market value as a result of the pandemic, the Corporation engaged a third party to conduct an in-depth analysis of the Corporation as of October 31, 2020. The final results determined that there was no impairment of goodwill. From the effective date of the analysis to December 31, 2020, the Corporation's market value increased. 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 $111 thousand, $109 thousand and $98 thousand, resulting in a deferred compensation liability of $1.5 million at December 31, 2020 and $1.7 million at December 31, 2019. 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 2020, 2019 and 2018. There is a liability of $6.8 million and $7.6 million as of year-end 2020 and 2019. 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 2020, 2019 and 2018 was $2.2 million, $1.9 million and $1.7 million, respectively, and resulted in a liability of $1.4 million at December 31, 2020 and $1.0 million at December 31, 2019. 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: 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. On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (CARES Act) was signed by the President of the United States that included an option for entities to delay the implementation of ASU 2016-13 until the earlier of the termination date of the national emergency declaration by the President or December 31, 2020. Due to the uncertainty on the economy and unemployment from COVID-19, the Corporation determined at that time to delay its implementation of ASU 2016-13 and calculated and recorded its provision for loan losses under the incurred loss model that existed prior to ASU 2016-13. The Corporation adopted ASU 2016-13 on December 31, 2020 with an effective date of January 1, 2020. The Corporation formed a cross-functional internal management committee and engaged a third party vendor to assist with the transition to the guidance set forth in this update. The new allowance model implemented by the Corporation estimates credit losses over the expected life of the portfolio and includes a qualitative framework to account for the drivers of losses that are not captured by the quantitative model. The results continued to be utilized to refine our models and estimation techniques. Documentation of new methodologies and int

FAIR VALUES OF FINANCIAL INSTRU

FAIR VALUES OF FINANCIAL INSTRUMENTS:	12 Months Ended
	Dec. 31, 2020
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, 2020 (Dollar amounts in thousands) Level 1 Level 2 Level 3 Carrying Value U.S. Government entity mortgage-backed securities $ — $ 97,814 $ — $ 97,814 Mortgage-backed securities, residential — 355,121 — 355,121 Mortgage-backed securities, commercial — 18,490 — 18,490 Collateralized mortgage obligations — 214,160 — 214,160 State and municipal obligations — 304,236 1,895 306,131 Municipal taxable — 23,139 — 23,139 U.S. Treasury — 2,753 — 2,753 Collateralized debt obligations — — 3,136 3,136 TOTAL $ — $ 1,015,713 $ 5,031 $ 1,020,744 Derivative Assets $ 2,465 Derivative Liabilities (2,465) December 31, 2019 (Dollar amounts in thousands) Level 1 Level 2 Level 3 Carrying Value U.S. Government entity mortgage-backed securities $ — $ 103,633 $ — $ 103,633 Mortgage-backed securities, residential — 243,382 — 243,382 Mortgage-backed securities, commercial — 22,104 — 22,104 Collateralized mortgage obligations — 281,311 — 281,311 State and municipal obligations — 261,869 2,565 264,434 Municipal taxable — 730 — 730 U.S. Treasury — 7,504 — 7,504 Collateralized debt obligations — — 3,619 3,619 TOTAL $ — $ 920,533 $ 6,184 $ 926,717 Derivative Assets $ 828 Derivative Liabilities (828) There were no transfers between Level 1 and Level 2 during 2020 and 2019. 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, 2020 and 2019. Fair Value Measurements Using Significant Unobservable Inputs (Level 3) State and municipal obligations Collateralized debt obligations Total Beginning balance, January 1 $ 2,565 $ 3,619 $ 6,184 Total realized/unrealized gains or losses Included in earnings — — — Included in other comprehensive income — (483) (483) Purchases — — — Settlements (670) — (670) Ending balance, December 31 $ 1,895 $ 3,136 $ 5,031 Fair Value Measurements Using Significant Unobservable Inputs (Level 3) State and Collateralized Total Beginning balance, January 1 $ 3,135 $ 3,258 $ 6,393 Total realized/unrealized gains or losses Included in earnings — — — Included in other comprehensive income — 498 498 Transfers — — — Settlements (570) (137) (707) Ending balance, December 31 $ 2,565 $ 3,619 $ 6,184 There were no unrealized gains and losses recorded in earnings for the years ended December 31, 2020, 2019 or 2018. Other real estate owned is valued at Level 3. Other real estate owned at December 31, 2020 with a value of $1.0 million was reduced by zero for fair value adjustment. At December 31, 2020 other real estate owned was comprised of $846 thousand from commercial loans and $167 thousand from residential loans. Other real estate owned at December 31, 2019 with a value of $3.6 million was reduced $64 thousand for fair value adjustment. At December 31, 2019 other real estate owned was comprised of $3.5 million from commercial loans and $142 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 collateral dependent 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, 2020 and 2019. 2020 Fair Value Valuation Technique(s) Unobservable Input(s) Range State and municipal obligations $ 1,895 Discounted cash flow Discount rate 3.41%-4.44% Probability of default — % Other real estate $ 1,012 Sales comparison/income approach Discount rate for age of appraisal and market conditions 5.00%-20.00% Collateral dependent loans $ 6,581 Discounted cash flows Discount rate for age of appraisal and market conditions 0.00%-50.00% 2019 Fair Value Valuation Technique(s) Unobservable Input(s) Range State and municipal obligations $ 2,565 Discounted cash flow Discount rate 2.87%-4.44% Probability of default — % Other real estate $ 3,625 Sales comparison/income approach Discount rate for age of appraisal and market conditions 5.00%-20.00% Impaired Loans $ 100 Sales comparison/income approach Discount rate for age of appraisal and market conditions 0.00%-50.00% The following table presents impaired collateral dependent loans measured at fair value on a non-recurring basis by class of loans as of December 31, 2019. December 31, 2019 (Dollar amounts in thousands) Carrying Value Allowance Fair Value Commercial Commercial & Industrial $ 148 $ 48 $ 100 Farmland — — — Non Farm, Non Residential — — — Agriculture — — — All Other Commercial — — — Residential First Liens — — — Home Equity — — — Junior Liens — — — Multifamily — — — All Other Residential — — — Consumer Motor Vehicle — — — All Other Consumer — — — TOTAL $ 148 $ 48 $ 100 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. Loan fair value estimates represent an exit price for 2020 and 2019. 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 tables below and were determined based on the above assumptions: December 31, 2020 Carrying Fair Value (Dollar amounts in thousands) Value Level 1 Level 2 Level 3 Total Cash and due from banks $ 657,470 $ 25,645 $ 631,825 $ — $ 657,470 Securities available-for-sale 1,020,744 — 1,015,713 5,031 1,020,744 Restricted stock 14,812 n/a n/a n/a n/a Loans, net 2,563,242 — — 2,560,683 2,560,683 Accrued interest receivable 16,957 — 3,521 13,436 16,957 Deposits (3,755,945) — (3,763,358) — (3,763,358) Short-term borrowings (116,061) — (116,061) — (116,061) Other borrowings (5,859) — (6,297) — (6,297) Accrued interest payable (1,033) — (1,033) — (1,033) December 31, 2019 Carrying Fair Value (Dollar amounts in thousands) Value Level 1 Level 2 Level 3 Total Cash and due from banks $ 127,426 $ 26,275 $ 101,151 $ — $ 127,426 Securities available-for-sale 926,717 — 920,533 6,184 926,717 Restricted stock 15,394 n/a n/a n/a n/a Loans, net 2,636,447 — — 2,648,692 2,648,692 Accrued interest receivable 18,523 — 3,583 14,940 18,523 Deposits (3,275,357) — (3,278,099) — (3,278,099) Short-term borrowings (80,119) — (80,119) — (80,119) Other borrowings (30,973) — (31,143) — (31,143) Accrued interest payable (1,739) — (1,739) — (1,739)

RESTRICTIONS ON CASH AND DUE FR

RESTRICTIONS ON CASH AND DUE FROM BANKS:	12 Months Ended
	Dec. 31, 2020
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 zero and $16.9 million at December 31, 2020 and 2019, respectively.

SECURITIES_

SECURITIES:	12 Months Ended
	Dec. 31, 2020
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, 2020 Amortized Unrealized (Dollar amounts in thousands) Cost Gains Losses Fair Value U.S. Government entity mortgage-backed securities $ 92,710 $ 5,105 $ (1) $ 97,814 Mortgage-backed securities, residential 346,606 8,794 (279) 355,121 Mortgage-backed securities, commercial 17,931 559 — 18,490 Collateralized mortgage obligations 209,556 4,761 (157) 214,160 State and municipal obligations 285,837 20,294 — 306,131 Municipal taxable 22,440 702 (3) 23,139 U.S. Treasury 2,750 3 — 2,753 Collateralized debt obligations — 3,136 — 3,136 TOTAL $ 977,830 $ 43,354 $ (440) $ 1,020,744 December 31, 2019 Amortized Unrealized (Dollar amounts in thousands) Cost Gains Losses Fair Value U.S. Government entity mortgage-backed securities $ 102,490 $ 1,293 $ (150) $ 103,633 Mortgage-backed securities, residential 240,753 2,979 (350) 243,382 Mortgage-backed securities, commercial 22,036 73 (5) 22,104 Collateralized mortgage obligations 280,797 1,735 (1,221) 281,311 State and municipal obligations 253,277 11,265 (108) 264,434 Municipal taxable 728 2 — 730 U.S. Treasury 7,494 10 — 7,504 Collateralized debt obligations — 3,619 — 3,619 TOTAL $ 907,575 $ 20,976 $ (1,834) $ 926,717 As of December 31, 2020, 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 $744.5 million and $596.2 million at December 31, 2020 and 2019, 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, 2020, 2019 and 2018, respectively. (Dollar amounts in thousands) 2020 2019 2018 Proceeds $ 36,696 $ 11,210 $ 2,418 Gross gains 290 55 5 Gross losses (57) (11) (3) Gains of $290 thousand and losses of $57 thousand in 2020 and gains of $55 thousand and losses of $11 thousand in 2019 and gains of $5 thousand and losses of $3 thousand in 2018 resulted from redemption premiums on called and sold securities. Contractual maturities of debt securities at year-end 2020 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 $ 13,168 $ 13,304 Due after one but within five years 47,560 49,207 Due after five but within ten years 64,596 68,349 Due after ten years 278,413 302,113 403,737 432,973 Mortgage-backed securities and collateralized mortgage obligations 574,093 587,771 TOTAL $ 977,830 $ 1,020,744 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, 2020 and 2019. December 31, 2020 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 $ — $ — 944 (1) $ 944 $ (1) Mortgage-backed securities, residential 76,962 (279) — — 76,962 (279) Collateralized mortgage obligations 12,282 (108) 3,767 (49) 16,049 (157) Municipal taxable 747 (3) — — 747 (3) U.S. Treasury 250 — — — 250 — Total temporarily impaired securities $ 90,241 $ (390) $ 4,711 $ (50) $ 94,952 $ (440) December 31, 2019 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 $ 29,183 $ (150) $ — $ — $ 29,183 $ (150) Mortgage-backed securities, residential 55,665 (243) 18,724 (107) 74,389 (350) Mortgage-backed securities, commercial 4,391 (5) — — 4,391 (5) Collateralized mortgage obligations 33,398 (314) 61,781 (907) 95,179 (1,221) State and municipal obligations 8,996 (61) 461 (47) 9,457 (108) Total temporarily impaired securities $ 131,633 $ (773) $ 80,966 $ (1,061) $ 212,599 $ (1,834) The Corporation held 19 investment securities with an amortized cost greater than fair value as of December 31, 2020. 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 $440 thousand as of December 31, 2020 and $1.8 million as of December 31, 2019. 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 impairment related to credit losses 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 impairment related to credit losses by segregating the portfolio into two general segments. In evaluating for impairment, management considers the reason for the decline, the extent of the decline, the duration of the decline and whether the Corporation intends to sell a security or is more likely than not to be required to sell a security before recovery of its amortized cost. 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, the security's amortized cost is written down to fair value through income. 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, a credit loss exists and an allowance for credit losses is recorded, limited to the amount that the fair value of the security is less than its amortized cost basis. Any impairment that has not been recorded through an allowance for credit losses is recognized in other comprehensive income, net of applicable taxes. 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. A second was called in second quarter 2018. The remaining CDO has a contractual balance of $3.7 million at December 31, 2020 which has been reduced to $3.1 million by $750 thousand of interest payments received, $3.0 million of cumulative credit loss charges recorded through earnings to date and increased by $3.1 million recorded in other comprehensive income. 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. 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. In the second quarter of 2018 one of the obligations was called, resulting in the elimination of the credit loss associated with that obligation. A recovery of previously recorded credit loss of $4.2 million was received and recognized in non-interest income for the period. In addition the Corporation received $2.4 million of interest income associated with the call. The table below presents a rollforward of the credit losses recognized in earnings for the years presented: (Dollar amounts in thousands) 2020 2019 2018 Beginning balance, January 1, $ 2,974 $ 2,974 $ 7,132 Reductions for securities called during the period — — (4,158) Ending balance, December 31, $ 2,974 $ 2,974 $ 2,974

LOANS_

LOANS:	12 Months Ended
	Dec. 31, 2020
Loans and Leases Receivable, Net Amount [Abstract]
LOANS	Loans are summarized as follows: December 31, (Dollar amounts in thousands) 2020 2019 Commercial $ 1,521,711 $ 1,584,447 Residential 604,652 682,077 Consumer 479,750 386,006 Total gross loans 2,606,113 2,652,530 Deferred costs, net 4,181 3,860 Allowance for credit losses (47,052) (19,943) TOTAL $ 2,563,242 $ 2,636,447 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, 2020 and 2019, loans held for sale were $7.1 million and $5.8 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 2020, the aggregate dollar amount of these loans to directors and executive officers who held office amounted to $89.5 million at the beginning of the year. During 2020, advances of $22.8 million, repayments of $54.8 million, and additions for new directors of $0.0 million were made with respect to related party loans for an aggregate dollar amount outstanding of $57.5 million at December 31, 2020. Loans serviced for others, which are not reported as assets, total $490.4 million and $477.0 million at year-end 2020 and 2019. Custodial escrow balances maintained in connection with serviced loans were $3.0 million and $3.1 million at year-end 2020 and 2019. Activity for capitalized mortgage servicing rights (included in other assets) was as follows: December 31, (Dollar amounts in thousands) 2020 2019 2018 Servicing rights: Beginning of year $ 1,435 $ 1,431 $ 1,434 Additions 956 579 513 Amortized to expense (790) (575) (516) End of year $ 1,601 $ 1,435 $ 1,431 Third party valuations are conducted periodically for mortgage servicing rights. Based on these valuations, fair values were approximately $2.4 million and $2.7 million at year end 2020 and 2019. There was no valuation allowance in 2020 or 2019.

ACQUISITIONS AND FDIC INDEMNIFI

ACQUISITIONS AND FDIC INDEMNIFICATION ASSET:	12 Months Ended
	Dec. 31, 2020
Business Combinations [Abstract]
ACQUISITIONS AND FDIC INDEMNIFICATION ASSET	ACQUISITIONS, DIVESTITURES AND FDIC INDEMNIFICATION ASSET: On July 27, 2019, the Corporation completed its acquisition of HopFed Bancorp, Inc. and its banking subsidiary, Heritage Bank. Therefore, the results of HopFed have been included in the results of operations beginning on July 27, 2019. Pursuant to the terms of the merger agreement, each issued and outstanding share of HopFed common stock, $0.01 par value per share, was converted into the right to receive, at the stockholder's election, either (or a combination of) 0.444 shares of Corporation common stock, without par value, or $21.00 in cash, subject to proration provisions specified in the merger agreement that provide for an aggregate split of 50% of shares of HopFed Common Stock being exchanged for Corporation Common Stock and 50% for cash, with cash to be paid in lieu of fractional shares. Each outstanding share of Corporation common stock remained outstanding and was unaffected by the merger. Acquisition-related costs of $3.3 million are included in the Corporation's income statement for the year ended December 31, 2019. Goodwill of $44.2 million arising from the acquisition consisted largely of synergies and the cost savings resulting from the combining of the operations of the companies. The goodwill is not deductible for income tax purposes as the transaction was accounted for as a tax-free exchange. The following table summarizes the consideration paid and the amounts of the assets acquired and liabilities assumed recognized at the acquisition date. (Dollar amounts in thousands) As Initially Reported Measurement Period Adjustments As Adjusted Consideration Cash consideration $ 67,348 $ — $ 67,348 Stock consideration 61,878 — 61,878 Fair value of total consideration transferred $ 129,226 $ — $ 129,226 Assets acquired Cash $ 34,518 $ 34,518 Investment securities available-for-sale 174,851 174,851 Bank owned life insurance 10,693 10,693 Federal Home Loan Bank stock 4,428 4,428 Loans 657,179 1,719 658,898 Premises and equipment 25,316 (6,494) 18,822 Core deposit intangibles 10,369 10,369 Other real estate owned 3,364 3,364 Other assets 6,596 1,600 8,196 Total assets acquired 927,314 (3,175) 924,139 Liabilities assumed Deposits 735,526 735,526 FHLB advances 20,775 20,775 Other borrowings 75,783 75,783 Other liabilities 7,066 7,066 Total liabilities assumed 839,150 — 839,150 Net identifiable assets 88,164 (3,175) 84,989 Goodwill $ 41,062 $ 3,175 $ 44,237 The fair value of net assets acquired includes fair value adjustments to certain receivables that were not considered impaired as of the acquisition date. The fair value adjustments were determined using discounted contractual cash flows. However, the Corporation believes that all contractual cash flows related to these financial instruments will be collected. As such, these receivables were not considered impaired at the acquisition date and were not subject to guidance relating to purchase credit impaired loans, which have shown evidence of credit deterioration since origination. The following table presents supplemental pro forma information as if the acquisition had occurred at the beginning of 2018. The unaudited pro forma information includes adjustments for interest income on loans and securities acquired, interest expense on deposits acquired, and the related income tax effects. The pro forma financial information is not necessarily indicative of the results of operations that would have occurred had the transactions been effected on the assumed dates. Year ended December 31, (Dollar amounts in thousands, except per share data) 2019 2018 Net interest income $ 147,581 $ 145,136 Net income $ 51,088 $ 52,252 Basic and diluted earnings per share $ 3.97 $ 4.26 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 prohibited carrying over or creating an allowance for loan losses upon initial recognition. (Dollar amounts in thousands) As Initially Reported Measurement Period Adjustments As Adjusted Contractually required payments receivable of loans purchased during the year: Commercial $ 16,530 $ (3,523) $ 13,007 Consumer 391 (296) 95 $ 16,921 $ (3,819) $ 13,102 Fair value of acquired loans at acquisition $ 8,870 $ (1,857) $ 7,013 The carrying amount of loans accounted for in accordance with FASB ASC 310-30 at December 31, 2019, are shown in the following table: 2019 (Dollar amounts in thousands) Commercial Consumer Total Beginning balance $ 1,530 $ — $ 1,530 Loans added, as initially reported 8,610 260 $ 8,870 Measurement period adjustments (1,597) (260) $ (1,857) Disposals (1,274) — (1,274) ASC 310-30 Loans $ 7,269 $ — $ 7,269

ALLOWANCE FOR LOAN LOSSES_

ALLOWANCE FOR LOAN LOSSES:	12 Months Ended
	Dec. 31, 2020
Allowance For Loan Losses Disclosure [Abstract]
ALLOWANCE FOR LOAN LOSSES	The following table presents the activity of the allowance for credit losses by portfolio segment for the years ended December 31, 2020, 2019 and 2018. Allowance for Credit Losses: December 31, 2020 (Dollar amounts in thousands) Commercial Residential Consumer Total Beginning balance $ 10,337 $ 1,302 $ 8,304 $ 19,943 Impact of adopting ASC 326 8,427 9,515 2,118 20,060 Provision for credit losses (1,622) 8,612 3,538 10,528 Loans charged -off (1,097) (944) (6,355) (8,396) Recoveries 856 657 3,404 4,917 Ending Balance $ 16,901 $ 19,142 $ 11,009 $ 47,052 Allowance for Credit Losses: December 31, 2019 (Dollar amounts in thousands) Commercial Residential Consumer Unallocated Total Beginning balance $ 9,848 $ 1,313 $ 7,481 $ 1,794 $ 20,436 Provision for credit losses 621 (321) 4,802 (402) 4,700 Loans charged -off (2,616) (1,050) (7,007) — (10,673) Recoveries 1,092 1,360 3,028 — 5,480 Ending Balance $ 8,945 $ 1,302 $ 8,304 $ 1,392 $ 19,943 Allowance for Credit Losses: December 31, 2018 (Dollar amounts in thousands) Commercial Residential Consumer Unallocated Total Beginning balance $ 10,281 $ 1,455 $ 6,709 $ 1,464 $ 19,909 Provision for credit losses 83 60 5,295 330 5,768 Loans charged -off (1,122) (841) (6,868) — (8,831) Recoveries 606 639 2,345 — 3,590 Ending Balance $ 9,848 $ 1,313 $ 7,481 $ 1,794 $ 20,436 The following tables present the allocation of the allowance for credit losses and the recorded investment in loans by portfolio segment and based on impairment method at December 31, 2019: Allowance for Credit Losses: December 31, 2019 (Dollar amounts in thousands) Commercial Residential Consumer Unallocated Total Individually evaluated for impairment $ 48 $ — $ — $ — $ 48 Collectively evaluated for impairment 8,897 1,302 8,304 1,392 19,895 Acquired with deteriorated credit quality — — — — — BALANCE AT END OF YEAR $ 8,945 $ 1,302 $ 8,304 $ 1,392 $ 19,943 Loans (Dollar amounts in thousands) Commercial Residential Consumer Total Individually evaluated for impairment $ 3,161 $ 3,952 $ — $ 7,113 Collectively evaluated for impairment 1,584,169 680,069 387,655 2,651,893 Acquired with deteriorated credit quality 7,436 — — 7,436 BALANCE AT END OF YEAR $ 1,594,766 $ 684,021 $ 387,655 $ 2,666,442 The following tables present loans individually evaluated for impairment by class of loan. December 31, 2019 Allowance Cash Basis Unpaid for Credit Average Interest Interest Principal Recorded Losses Recorded Income Income Balance Investment Allocated Investment Recognized Recognized With no related allowance recorded: Commercial Commercial & Industrial $ 1,519 $ 989 $ — $ 848 $ — $ — Farmland 1,997 1,997 — 1,999 — — Non Farm, Non Residential — — — — — — Agriculture — — — — — — All Other Commercial 27 27 — 461 — — Residential First Liens 3,952 3,952 — 4,055 — — Home Equity — — — — — — Junior Liens — — — — — — Multifamily — — — — — — All Other Residential — — — — — — Consumer Motor Vehicle — — — — — — All Other Consumer — — — — — — With an allowance recorded: Commercial Commercial & Industrial 148 148 48 1,108 — — Farmland — — — 84 — — Non Farm, Non Residential — — — — — — Agriculture — — — 138 — — All Other Commercial — — — — — — Residential First Liens — — — — — — Home Equity — — — — — — Junior Liens — — — — — — Multifamily — — — — — — All Other Residential — — — — — — Consumer Motor Vehicle — — — — — — All Other Consumer — — — — — — TOTAL $ 7,643 $ 7,113 $ 48 $ 8,693 $ — $ — December 31, 2018 Cash Basis Average Interest Interest Recorded Income Income Investment Recognized Recognized With no related allowance recorded: Commercial Commercial & Industrial $ 698 $ — $ — Farmland 1,579 — — Non Farm, Non Residential 1,443 — — Agriculture 49 — — All Other Commercial 1,172 — — Residential First Liens 3,371 — — Home Equity — — — Junior Liens 23 — — Multifamily — — — All Other Residential — — — Consumer Motor Vehicle — — — All Other Consumer — — — With an allowance recorded: Commercial Commercial & Industrial 688 — — Farmland 1,691 — — Non Farm, Non Residential — — — Agriculture 316 — — All Other Commercial — — — Residential First Liens 88 — — Home Equity — — — Junior Liens — — — Multifamily — — — All Other Residential — — — Consumer Motor Vehicle — — — All Other Consumer — — — TOTAL $ 11,118 $ — $ — The following tables present the recorded investment in nonperforming loans by class of loans. December 31, 2020 Loans Past Non-accrual Due Over With No Allowance (Dollar amounts in thousands) Accruing Non-accrual For Credit Loss Commercial Commercial & Industrial $ — $ 4,838 $ 1,080 Farmland — 195 — Non Farm, Non Residential — 3,729 3,267 Agriculture — 409 — All Other Commercial — 533 24 Residential First Liens 1,746 2,604 86 Home Equity 88 30 — Junior Liens 252 206 — Multifamily — 1,380 — All Other Residential — 135 — Consumer Motor Vehicle 372 754 — All Other Consumer — 554 — TOTAL $ 2,458 $ 15,367 $ 4,457 December 31, 2019 Loans Past Troubled Debt Due Over Restructured (Dollar amounts in thousands) Accruing Accrual Non-accrual Non-accrual Commercial Commercial & Industrial $ — $ — $ 11 $ 2,191 Farmland 5 — — 2,410 Non Farm, Non Residential — — — 441 Agriculture — — — 485 All Other Commercial — — — 114 Residential First Liens 625 3,007 396 2,876 Home Equity 12 — — 61 Junior Liens 51 94 9 175 Multifamily — — — — All Other Residential 738 — — 203 Consumer Motor Vehicle 227 — 15 138 All Other Consumer 4 239 444 452 TOTAL $ 1,662 $ 3,340 $ 875 $ 9,546 During the years ending December 31, 2020, 2019, and 2018 the terms of certain loans were modified as troubled debt restructurings (TDRs). The following tables present the activity for TDR's. 2020 (Dollar amounts in thousands) Commercial Residential Consumer Total January 1, $ 11 $ 3,485 $ 698 $ 4,194 Added — 692 304 996 Charged Off — (6) (158) (164) Payments (11) (582) (227) (820) December 31, $ — $ 3,589 $ 617 $ 4,206 2019 (Dollar amounts in thousands) Commercial Residential Consumer Total January 1, $ 145 $ 4,043 $ 618 $ 4,806 Added — 195 375 570 Charged Off — (24) (81) (105) Payments (134) (729) (214) (1,077) December 31, $ 11 $ 3,485 $ 698 $ 4,194 2018 (Dollar amounts in thousands) Commercial Residential Consumer Total January 1, $ 2,709 $ 3,611 $ 714 $ 7,034 Added — 984 295 1,279 Charged Off — (16) (137) (153) Payments (2,564) (536) (254) (3,354) December 31, $ 145 $ 4,043 $ 618 $ 4,806 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 2020, 2019 or 2018 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, 2020, 2019 and 2018 the Corporation modified 42, 45, and 53 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 2020, 2019, or 2018. The Corporation had no allocation of specific reserves to customers whose loan terms have been modified in troubled debt restructurings at December 31, 2020, 2019, and 2018. The Corporation has not committed to lend additional amounts as of December 31, 2020 and 2019 to customers with outstanding loans that are classified as troubled debt restructurings. The CARES Act includes a provision that permits a financial institution to elect to suspend temporarily troubled debt restructuring accounting under ASC Subtopic 310-40 in certain circumstances (“section 4013”). To be eligible under section 4013, a loan modification must be (1) related to COVID-19; (2) executed on a loan that was not more than 30 days past due as of December 31, 2019; and (3) executed between March 1, 2020, and the earlier of (A) 60 days after the date of termination of the National Emergency or (B) December 31, 2020. In response to this section of the CARES Act, the federal banking agencies issued a revised interagency statement on April 7, 2020 that, in consultation with the Financial Accounting Standards Board, confirmed that for loans not subject to section 4013, short-term modifications made on a good faith basis in response to COVID-19 to borrowers who were current prior to any relief are not troubled debt restructurings under ASC Subtopic 310-40. This includes short-term (e.g., up to six months) modifications such as payment deferrals, fee waivers, extensions of repayment terms, or delays in payment that are insignificant. Borrowers considered current are those that are less than 30 days past due on their contractual payments at the time a modification program is implemented. As of December 31, 2020, 1,545 loans totaling $305 million were modified, related to COVID-19, that were not considered troubled debt restructurings. As of December 31, 2020, 361 loans totaling $222 million have resumed normal scheduled payments. 1,184 remaining loans are still under a debt relief plan, which include 35 commercial loans totaling $54 million that have been provided additional payment relief since the initial payment relief plan. 134 loans totaling $13 million are under the original payment relief plan. The following table presents the amortized cost basis of collateral dependent loans by class of loans as of December 31, 2020: Collateral Type (Dollar amounts in thousands) Real Estate Other Commercial Commercial & Industrial $ 3,293 $ 2,221 Farmland 2,771 — Non Farm, Non Residential 6,838 — Agriculture — 599 All Other Commercial 528 24 Residential First Liens 86 — Home Equity — — Junior Liens — — Multifamily 1,380 — All Other Residential — — Consumer Motor Vehicle — — All Other Consumer — — Total $ 14,896 $ 2,844 The following tables present the aging of the recorded investment in loans by past due category and class of loans. Greater December 31, 2020 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 $ 685 $ 746 $ 3,364 $ 4,795 $ 603,777 $ 608,572 Farmland 22 — 91 113 118,528 118,641 Non Farm, Non Residential 155 — 271 426 350,681 351,107 Agriculture 28 30 275 333 146,147 146,480 All Other Commercial — — 24 24 305,612 305,636 Residential First Liens 5,506 1,866 2,365 9,737 314,730 324,467 Home Equity 260 29 104 393 60,362 60,755 Junior Liens 421 68 341 830 53,346 54,176 Multifamily — — — — 151,042 151,042 All Other Residential — 50 — 50 15,918 15,968 Consumer Motor Vehicle 6,975 1,294 560 8,829 441,283 450,112 All Other Consumer 164 19 13 196 31,401 31,597 TOTAL $ 14,216 $ 4,102 $ 7,408 $ 25,726 $ 2,592,827 $ 2,618,553 Greater December 31, 2019 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 $ 2,885 $ 766 $ 1,379 $ 5,030 $ 594,925 $ 599,955 Farmland 132 — 2,089 2,221 137,730 139,951 Non Farm, Non Residential 3,749 104 — 3,853 398,854 402,707 Agriculture 277 128 — 405 162,794 163,199 All Other Commercial — — 109 109 288,845 288,954 Residential First Liens 6,452 1,292 1,458 9,202 375,924 385,126 Home Equity 124 63 34 221 70,813 71,034 Junior Liens 384 43 137 564 54,533 55,097 Multifamily — — — — 148,282 148,282 All Other Residential 1,082 — 890 1,972 22,510 24,482 Consumer Motor Vehicle 6,488 983 270 7,741 347,950 355,691 All Other Consumer 228 42 2 272 31,692 31,964 TOTAL $ 21,801 $ 3,421 $ 6,368 $ 31,590 $ 2,634,852 $ 2,666,442 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. The following tables present the recorded investment of the commercial loan portfolio by risk category as of December 31, 2020: December 31, 2020 Term Loans at Amortized Cost Basis by Origination Year Revolving 2020 2019 2018 2017 2016 Prior Loans Total Commercial Commercial and Industrial Pass $ 159,494 $ 77,253 $ 64,298 $ 41,806 $ 20,564 $ 103,598 $ 91,615 $ 558,628 Special Mention 4,848 1,331 4,427 216 1,278 4,566 3,695 20,361 Substandard 3,780 323 4,187 1,148 3,543 2,565 3,124 18,670 Doubtful — — — — — — — — Not Rated 2,618 1,772 1,446 580 105 2,255 — 8,776 Subtotal $ 170,740 $ 80,679 $ 74,358 $ 43,750 $ 25,490 $ 112,984 $ 98,434 $ 606,435 Farmland Pass $ 10,010 $ 12,775 $ 12,149 $ 10,089 $ 15,863 $ 40,338 $ 1,386 $ 102,610 Special Mention 988 947 — 230 1,900 2,656 — 6,721 Substandard 1,718 2,303 — 716 1,628 826 — 7,191 Doubtful — — — — — — — — Not Rated — — — — — — — — Subtotal $ 12,716 $ 16,025 $ 12,149 $ 11,035 $ 19,391 $ 43,820 $ 1,386 $ 116,522 Non Farm, Non Residential Pass $ 39,914 $ 33,261 $ 38,111 $ 63,371 $ 49,511 $ 83,052 $ 4,092 $ 311,312 Special Mention — 998 — 305 9,982 6,811 — 18,096 Substandard — 1,188 — 4,310 7,484 7,028 — 20,010 Doubtful — — — — — — — — Not Rated — — — — — 682 — 682 Subtotal $ 39,914 $ 35,447 $ 38,111 $ 67,986 $ 66,977 $ 97,573 $ 4,092 $ 350,100 Agriculture Pass $ 13,336 $ 8,330 $ 3,485 $ 5,329 $ 3,732 $ 16,792 $ 67,052 $ 118,056 Special Mention — 1,483 1,203 664 5 428 7,611 11,394 Substandard — 3,834 18 223 2,435 1,988 5,926 14,424 Doubtful — — — — — — — — Not Rated 159 216 110 6 13 — — 504 Subtotal $ 13,495 $ 13,863 $ 4,816 $ 6,222 $ 6,185 $ 19,208 $ 80,589 $ 144,378 Other Commercial Pass $ 44,673 $ 57,200 $ 41,470 $ 61,442 $ 40,196 $ 50,325 $ 5,162 $ 300,468 Special Mention — — — 7 — 2,786 — 2,793 Substandard — — — 24 528 24 — 576 Doubtful — — — — — — — — Not Rated — 3 52 39 345 — — 439 Subtotal $ 44,673 $ 57,203 $ 41,522 $ 61,512 $ 41,069 $ 53,135 $ 5,162 $ 304,276 Residential Multifamily >5 Residential Pass $ 44,599 $ 9,892 $ 36,563 $ 19,749 $ 4,676 $ 21,704 $ 1,293 $ 138,476 Special Mention — — — — 102 10,662 — 10,764 Substandard — — 1,380 — — — — 1,380 Doubtful — — — — — — — — Not Rated — — — — — — — — Subtotal $ 44,599 $ 9,892 $ 37,943 $ 19,749 $ 4,778 $ 32,366 $ 1,293 $ 150,620 Total Pass $ 312,026 $ 198,711 $ 196,076 $ 201,786 $ 134,542 $ 315,809 $ 170,600 $ 1,529,550 Special Mention 5,836 4,759 5,630 1,422 13,267 27,909 11,306 70,129 Substandard 5,498 7,648 5,585 6,421 15,618 12,431 9,050 62,251 Doubtful — — — — — — — — Not Rated 2,777 1,991 1,608 625 463 2,937 — 10,401 Total commercial loans $ 326,137 $ 213,109 $ 208,899 $ 210,254 $ 163,890 $ 359,086 $ 190,956 $ 1,672,331 The Corporation evaluates the credit quality of its other loan portfolios, which includes residential real estate, consumer and lease financing loans, based primarily on the aging status of the loan and payment activity. Accordingly, loans on non-accrual status, loans past due 90 days or more and still accruing interest, and loans modified under troubled debt restructurings are considered to be nonperforming for purposes of credit quality evaluation. The following table presents the recorded investment of our other loan portfolio based on the credit risk profile of loans that are performing and loans that are nonperforming as of December 31, 2020: December 31, 2020 Term Loans at Amortized Cost Basis by Origination Year Revolving 2020 2019 2018 2017 2016 Prior Loans Total Residential First Liens Performing $ 47,875 $ 33,737 $ 31,634 $ 36,426 $ 30,419 $ 135,456 $ 3,235 $ 318,782 Non-performing — 40 95 343 107 4,062 — 4,647 Subtotal $ 47,875 $ 33,777 $ 31,729 $ 36,769 $ 30,526 $ 139,518 $ 3,235 $ 323,429 Home Equity Performing $ 854 $ 135 $ 644 $ 20 $ — $ 1,525 $ 57,334 $ 60,512 Non-performing — — 1 — — 91 24 116 Subtotal $ 854 $ 135 $ 645 $ 20 $ — $ 1,616 $ 57,358 $ 60,628 Junior Liens Performing $ 13,125 $ 12,742 $ 11,139 $ 6,214 $ 3,948 $ 5,099 $ 1,333 $ 53,600 Non-performing — 129 48 198 9 66 — 450 Subtotal $ 13,125 $ 12,871 $ 11,187 $ 6,412 $ 3,957 $ 5,165 $ 1,333 $ 54,050 Other Residential Performing $ 9,773 $ 2,775 $ 1,372 $ 292 $ 178 $ 733 $ 651 $ 15,774 Non-performing — 62 50 — — 39 — 151 Subtotal $ 9,773 $ 2,837 $ 1,422 $ 292 $ 178 $ 772 $ 651 $ 15,925 Consumer Motor Vehicle Performing $ 245,839 $ 113,293 $ 51,649 $ 24,786 $ 10,026 $ 1,600 $ — $ 447,193 Non-performing 318 355 257 127 36 11 — 1,104 Subtotal $ 246,157 $ 113,648 $ 51,906 $ 24,913 $ 10,062 $ 1,611 $ — $ 448,297 Other Consumer Performing $ 15,298 $ 7,328 $ 2,622 $ 724 $ 854 $ 703 $ 3,352 $ 30,881 Non-performing 231 200 92 22 — 8 19 572 Subtotal $ 15,529 $ 7,528 $ 2,714 $ 746 $ 854 $ 711 $ 3,371 $ 31,453 Total Performing $ 332,764 $ 170,010 $ 99,060 $ 68,462 $ 45,425 $ 145,116 $ 65,905 $ 926,742 Non-performing 549 786 543 690 152 4,277 43 7,040 Total other loans $ 333,313 $ 170,796 $ 99,603 $ 69,152 $ 45,577 $ 149,393 $ 65,948 $ 933,782 As of December 31, 2019, and based on the most recent analysis performed, the risk category of loans by class of loans is as follows: Special (Dollar amounts in thousands) Pass Mention Substandard Doubtful Not Rated Total Commercial Commercial & Industrial $ 549,341 $ 19,253 $ 26,349 $ 5 $ 2,761 $ 597,709 Farmland 119,858 8,673 8,644 — 100 137,275 Non Farm, Non Residential 381,404 4,424 12,269 — 3,678 401,775 Agriculture 127,144 4,507 27,490 — 985 160,126 All Other Commercial 283,266 3,141 1,120 — 35 287,562 Residential First Liens 174,338 926 4,382 — 204,266 383,912 Home Equity 18,417 — 134 11 52,280 70,842 Junior Liens 2,839 64 178 76 51,817 54,974 Multifamily 146,497 112 1,315 — 19 147,943 All Other Residential 12,624 — 205 — 11,577 24,406 Consumer Motor Vehicle 2,880 — 538 — 350,780 354,198 All Other Consumer 3,155 — 38 — 28,615 31,808 TOTAL $ 1,821,763 $ 41,100 $ 82,662 $ 92 $ 706,913 $ 2,652,530

PREMISES AND EQUIPMENT_

PREMISES AND EQUIPMENT:	12 Months Ended
	Dec. 31, 2020
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) 2020 2019 Land $ 17,574 $ 17,574 Building and leasehold improvements 66,658 66,592 Furniture and equipment 42,167 39,715 126,399 123,881 Less accumulated depreciation (64,336) (61,305) TOTAL $ 62,063 $ 62,576 Aggregate depreciation expense was $4.4 million, $3.9 million and $3.7 million for 2020, 2019 and 2018, respectively. The Company leases certain branch properties and equipment under operating leases. Rent expense was $1.1 million, $1.1 million, and $1.0 million for 2020, 2019, and 2018. Rent commitments, before considering renewal options that generally are present, were as follows: 2021 $ 851 2022 737 2023 637 2024 369 2025 237 Thereafter 795 $ 3,626 See Note 19 for additional discussion on leases.

GOODWILL AND INTANGIBLE ASSETS_

GOODWILL AND INTANGIBLE ASSETS:	12 Months Ended
	Dec. 31, 2020
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 2020 and 2019. Management does not believe any amount of goodwill is impaired. Intangible assets subject to amortization at December 31, 2020 and 2019 are as follows: 2020 2019 Gross Accumulated Gross Accumulated (Dollar amounts in thousands) Amount Amortization Amount Amortization Core deposit intangible $ 21,205 $ 12,233 $ 21,205 $ 10,562 $ 21,205 $ 12,233 $ 21,205 $ 10,562 Aggregate amortization expense was $1.7 million, $923 thousand and $433 thousand for 2020, 2019 and 2018, respectively. Estimated amortization expense for the next five years is as follows: In thousands 2021 $ 1,615 2022 1,390 2023 1,127 2024 838 2025 711

DEPOSITS_

DEPOSITS:	12 Months Ended
	Dec. 31, 2020
Maturities of Time Deposits [Abstract]
DEPOSITS	DEPOSITS: Scheduled maturities of time deposits for the next five years are as follows: (dollar amounts in thousands) 2021 $ 358,165 2022 97,159 2023 70,677 2024 28,169 2025 15,162

SHORT-TERM BORROWINGS_

SHORT-TERM BORROWINGS:	12 Months Ended
	Dec. 31, 2020
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, 2020 and 2019 is presented below: (Dollar amounts in thousands) 2020 2019 Federal funds purchased $ 6,500 $ 900 Repurchase-agreements 109,561 79,219 $ 116,061 $ 80,119 (Dollar amounts in thousands) 2020 2019 Average amount outstanding $ 90,561 $ 60,915 Maximum amount outstanding at a month end 116,061 91,750 Average interest rate during year 0.63 % 1.84 % Interest rate at year-end 0.11 % 0.31 % 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, 2020 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 $ 86,335 $ 1,086 $ 21,342 $ 798 $ 109,561 December 31, 2019 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 $ 69,709 $ 1,927 $ 6,552 $ 1,031 $ 79,219

OTHER BORROWINGS_

OTHER BORROWINGS:	12 Months Ended
	Dec. 31, 2020
Other Borrowings Disclosure [Abstract]
OTHER BORROWINGS	OTHER BORROWINGS: Other borrowings at December 31, 2020 and 2019 are summarized as follows: (Dollar amounts in thousands) 2020 2019 FHLB advances $ 5,859 $ 20,796 Junior subordinated debentures — 10,177 TOTAL $ 5,859 $ 30,973 The aggregate minimum annual retirements of other borrowings are as follows: 2021 $ — 2022 — 2023 6 2024 — 2025 — Thereafter — $ 6 At December 31, 2020 and 2019, other borrowings are summarized as follows: The Corporation's subsidiary banks are members of the Federal Home Loan Bank (FHLB) and accordingly are permitted to obtain advances. There are $5.9 million of advances from the FHLB at December 31, 2020, and $20.8 million of advances at December 31, 2019, which accrue interest, payable monthly, at annual rates, primarily fixed, varying from 0.25% to 0.39% in 2020 and 2.3% to 2.8% during the year in 2019. FHLB advances are, generally, due in full at maturity. They are secured by eligible securities totaling $97.1 million at December 31, 2020, and $129.3 million at December 31, 2019, 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 $397.1 million at year end

INCOME TAXES_

INCOME TAXES:	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES: Income tax expense is summarized as follows: (Dollar amounts in thousands) 2020 2019 2018 Federal: Currently payable $ 7,886 $ 7,118 $ 7,018 Deferred 1,188 2,435 1,793 9,074 9,553 8,811 State: Currently payable 2,422 2,168 1,699 Deferred 196 406 635 2,618 2,574 2,334 TOTAL $ 11,692 $ 12,127 $ 11,145 The reconciliation of income tax expense with the amount computed by applying the statutory federal income tax rate of 21% to income before income taxes is summarized as follows: (Dollar amounts in thousands) 2020 2019 2018 Federal income taxes computed at the statutory rate $ 13,763 $ 12,810 $ 12,122 Add (deduct) tax effect of: Tax exempt income (2,643) (2,551) (2,495) ESOP dividend deduction (98) (115) (103) State tax, net of federal benefit 2,068 2,034 1,846 General business tax credits (1,648) (148) (148) Other, net 250 97 (77) TOTAL $ 11,692 $ 12,127 $ 11,145 The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and liabilities at December 31, 2020 and 2019, are as follows: (Dollar amounts in thousands) 2020 2019 Deferred tax assets: Other than temporary impairment $ 753 $ 754 Net unrealized losses on retirement plans 8,132 7,465 Loan loss provisions 12,150 5,288 Deferred compensation 2,496 2,615 Compensated absences 623 611 Post-retirement benefits 1,286 1,309 Lease liability 1,450 1,503 Purchase accounting 1,060 1,600 Deferred loss on acquisition — 482 Other 2,186 2,161 GROSS DEFERRED ASSETS 30,136 23,788 Deferred tax liabilities: Net unrealized gains on securities available-for-sale (8,752) (4,248) Depreciation (2,155) (2,376) Mortgage servicing rights (390) (332) Pensions (843) (475) Right-of-use asset (1,446) (1,501) Intangibles (5,458) (3,285) FHLB stock dividends (111) — Other (3,963) (2,827) GROSS DEFERRED LIABILITIES (23,118) (15,044) NET DEFERRED TAX ASSETS $ 7,018 $ 8,744 Unrecognized Tax Benefits — A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows: (Dollar amounts in thousands) 2020 2019 2018 Balance at January 1 $ 825 $ 922 $ 825 Additions based on tax positions related to the current year 114 298 174 Additions based on tax positions related to prior years — — — Reductions due to the statute of limitations (72) (395) (77) Balance at December 31 $ 867 $ 825 $ 922 Of this total, $867 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, 2020, 2019 and 2018 was an expense increase of $11 thousand, a decrease of $9 thousand, and an increase of $23 thousand, respectively. The amount accrued for interest and penalties at December 31, 2020, 2019 and 2018 was $64 thousand, $53 thousand and $52 thousand, respectively.

FINANCIAL INSTRUMENTS WITH OFF-

FINANCIAL INSTRUMENTS WITH OFF-BALANCE-SHEET RISK:	12 Months Ended
	Dec. 31, 2020
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) 2020 2019 Home Equity $ 88,672 $ 87,327 Commercial Operating Lines 508,602 358,561 Other Commitments 119,108 105,872 TOTAL $ 716,382 $ 551,760 Commercial letters of credit $ 3,601 $ 3,851 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 3.25% to 6.00% in 2020. In 2019 this range of rates was from 4.25% to 7.25%. 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 $29.1 million and $26.2 million at December 31, 2020 and 2019. The fair value of these contracts combined was zero, as gains offset losses. The gross gains and gross losses associated with these interest rate swaps was $2.5 million and $0.8 million at December 31, 2020 and 2019.

RETIREMENT PLANS_

RETIREMENT PLANS:	12 Months Ended
	Dec. 31, 2020
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 $4.44 million, $1.77 million and $2.26 million in 2020, 2019 and 2018. The Corporation contributed $1.47 million, $1.25 million and $1.09 million to the ESOP in 2020, 2019 and 2018. There were contributions of $1.2 million, $926 thousand and $735 thousand to the ESOP for employees no longer participating in the defined benefit plan in 2020, 2019 and 2018 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) 2020 2019 2018 Service cost - benefits earned $ 1,300 $ 1,218 $ 1,388 Interest cost on projected benefit obligation 3,116 3,465 3,194 Expected return on plan assets (4,198) (3,585) (3,962) Net amortization and deferral 1,968 1,558 1,448 Net periodic pension cost 2,186 2,656 2,068 Net loss (gain) during the period 3,188 6,362 (1,192) Amortization of prior service cost (1) (1) (1) Amortization of unrecognized gain (loss) (1,967) (1,558) (1,447) Total recognized in other comprehensive (income) loss 1,220 4,803 (2,640) Total recognized net periodic pension cost and other comprehensive income $ 3,406 $ 7,459 $ (572) 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 $2.1 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) 2020 2019 Change in benefit obligation: Benefit obligation at January 1 $ 102,791 $ 87,796 Service cost 1,300 1,218 Interest cost 3,116 3,465 Actuarial (gain) loss 6,845 14,233 Benefits paid (4,130) (3,921) Benefit obligation at December 31 109,922 102,791 Reconciliation of fair value of plan assets: Fair value of plan assets at January 1 73,962 64,335 Actual return on plan assets 7,856 11,456 Employer contributions 4,749 2,092 Benefits paid (4,130) (3,921) Fair value of plan assets at December 31 82,437 73,962 Funded status at December 31 (plan assets less benefit obligation) $ (27,485) $ (28,829) Amounts recognized in accumulated other comprehensive income at December 31, 2020 and 2019 consist of: (Dollar amounts in thousands) 2020 2019 Net loss (gain) $ 29,006 $ 27,786 Prior service cost (credit) 1 2 $ 29,007 $ 27,788 The accumulated benefit obligation for the defined benefit pension plan was $105.2 million and $98.4 million at year-end 2020 and 2019. Principal assumptions used to determine pension benefit obligation at year end: 2020 2019 Discount rate 2.52 % 3.22 % Rate of increase in compensation levels 3.00 3.00 Principal assumptions used to determine net periodic pension cost: 2020 2019 Discount rate 3.22 % 4.22 % 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 2020 and 2019 by asset category are as follows: Pension Plan ESOP Pension ESOP ASSET CATEGORY 2020 2020 2020 2019 2020 2019 Equity securities 25-75% 95-99% 63 % 63 % 99 % 98 % Debt securities 0-50% 0-0% 31 % 33 % — % — % Other 0-20% 0-5% 6 % 4 % 1 % 2 % 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, 2020 and 2019, by asset category, is as follows: Fair Value Measurements at Quoted Prices Significant Significant (Dollar amounts in thousands) Total (Level 1) (Level 2) (Level 3) Plan assets Equity securities $ 55,235 $ 55,235 $ — $ — Debt securities 12,673 — 12,673 — Investment Funds 14,529 14,529 — — Total plan assets $ 82,437 $ 69,764 $ 12,673 $ — Fair Value Measurements at Quoted Prices Significant Significant (Dollar amounts in thousands) Total (Level 1) (Level 2) (Level 3) Plan assets Equity securities $ 51,334 $ 51,334 $ — $ — Debt securities 13,104 — 13,104 — Investment Funds 9,524 9,524 — — Total plan assets $ 73,962 $ 60,858 $ 13,104 $ — 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 $16.5 million (20 percent of total plan assets) and $19.8 million (27 percent of total plan assets) at December 31, 2020 and 2019, respectively. In addition the ESOP for non plan participants holds an estimated $5.5 million and $5.1 million of First Financial Corporation stock at December 31, 2020 and December 31, 2019 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 $715 thousand to its ESOP in 2021. Estimated Future Payments — The following benefit payments, which reflect expected future service, are expected: PENSION BENEFITS (Dollar amounts in thousands) 2021 $ 4,917 2022 5,203 2023 5,423 2024 5,606 2025 5,735 2026-2030 30,615 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 $539 thousand in 2020 and $339 thousand in 2019 and $411 thousand in 2018.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) 2020 2019 2018 Net loss (gain) during the period $ 1,459 $ 1,357 $ 260 Amortization of prior service cost — — — Amortization of unrecognized gain (loss) (246) (75) (51) Total recognized in other comprehensive (income) loss $ 1,213 $ 1,282 $ 209 The Corporation has $8.4 million and $6.7 million recognized in the balance sheet as a liability at December 31, 2020 and 2019. Amounts in accumulated other comprehensive income consist of $3.6 million net loss at December 31, 2020 and $2.4 million net loss at December 31, 2019. 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 $357 thousand. Estimated Future Payments — The following benefit payments, which reflect expected future service, are expected: (Dollar amounts on thousands) 2021 $ — 2022 203 2023 399 2024 390 2025 380 2026-2030 3,104 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, 2020 and 2019 are as follows: December 31, (Dollar amounts in thousands) 2020 2019 Change in benefit obligation: Benefit obligation at January 1 $ 3,975 $ 3,420 Service cost 38 34 Interest cost 125 145 Plan participants' contributions 75 65 Actuarial (gain) loss 238 626 Benefits paid (304) (315) Benefit obligation at December 31 $ 4,147 $ 3,975 Funded status at December 31 $ 4,147 $ 3,975 Amounts recognized in accumulated other comprehensive income consist of a net loss of $266 thousand at December 31, 2020 and $27 thousand net gain at December 31, 2019. The post-retirement benefits paid in 2020 and 2019 of $305 thousand and $315 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, 2020 2019 Discount rate 2.52 % 3.22 % 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 2020 2019 Post-retirement health benefit expense included the following components: Years Ended December 31, (Dollar amounts in thousands) 2020 2019 2018 Service cost $ 38 $ 34 $ 42 Interest cost 125 146 131 Amortization of net actuarial loss (gain) — (16) — Net periodic benefit cost 163 164 173 Net loss (gain) during the period 238 626 (872) Amortization of prior service cost — 16 — Total recognized in other comprehensive income (loss) 238 642 (872) Total recognized net periodic benefit cost and other comprehensive income $ 401 $ 806 $ (699) 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 12 11 Contributions — The Corporation expects to contribute $240 thousand to its other post-retirement benefit plan in 2020. Estimated Future Payments — The following benefit payments, which reflect expected future service, are expected: (Dollar amounts in thousands) 2021 $ 240 2022 244 2023 246 2024 250 2025 245 2026-2030 1,177

STOCK BASED COMPENSATION_

STOCK BASED COMPENSATION:	12 Months Ended
	Dec. 31, 2020
Share-based Payment Arrangement [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 2020 and 2019, 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 205,760 shares of restricted common stock of the Company were granted under the 2011 Stock Incentive Plan. A total of 494,240 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 $820 thousand, $799 thousand, and $745 thousand in 2020, 2019 and 2018, respectively. 2020 2019 Number Weighted Average Number Weighted Average (shares in thousands) Outstanding Fair Value Outstanding Fair Value Nonvested balance at January 1, 18,931 43.44 16,999 45.92 Granted during the year 19,688 42.50 19,783 42.52 Vested during the year (18,895) 43.43 (17,851) 44.79 Forfeited during the year — — — — Nonvested balance at December 31, 19,724 42.51 18,931 43.44 As of December 31, 2020 and 2019, there was $838 thousand and $822 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, 2020 and 2019 was $734 thousand and $816 thousand, respectively.

OTHER COMPREHENSIVE INCOME (LOS

OTHER COMPREHENSIVE INCOME (LOSS):	12 Months Ended
	Dec. 31, 2020
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, 2020 and 2019. Unrealized gains and 2020 Losses on Retirement (Dollar amounts in thousands) Securities plans Total Beginning balance, January 1 $ 14,893 $ (22,394) $ (7,501) Change in other comprehensive income before reclassification 19,444 (3,479) 15,965 Amounts reclassified from accumulated other comprehensive income (175) 1,475 1,300 Net current period other comprehensive income (loss) 19,269 (2,004) 17,265 Ending balance, December 31 $ 34,162 $ (24,398) $ 9,764 Unrealized gains and 2019 Losses on Retirement (Dollar amounts in thousands) Securities plans Total Beginning balance, January 1 $ (6,105) $ (17,349) $ (23,454) Change in other comprehensive income before reclassification 21,031 (6,213) 14,818 Amounts reclassified from accumulated other comprehensive income (33) 1,168 1,135 Net current period other comprehensive income (loss) 20,998 (5,045) 15,953 Ending balance, December 31 $ 14,893 $ (22,394) $ (7,501) Balance Current Balance (Dollar amounts in thousands) 1/1/2020 Change 12/31/2020 Unrealized gains (losses) on securities available-for-sale without other than temporary impairment $ 12,178 $ 19,632 $ 31,810 Unrealized gains (losses) on securities available-for-sale with other than temporary impairment 2,715 (363) 2,352 Total unrealized gain (loss) on securities available-for-sale $ 14,893 $ 19,269 $ 34,162 Unrealized loss on retirement plans (22,394) (2,004) (24,398) TOTAL $ (7,501) $ 17,265 $ 9,764 Balance Current Balance (Dollar amounts in thousands) 1/1/2019 Change 12/31/2019 Unrealized gains (losses) on securities available-for-sale without other than temporary impairment $ (8,446) $ 20,624 $ 12,178 Unrealized gains (losses) on securities available-for-sale with other than temporary impairment 2,341 374 2,715 Total unrealized gain (loss) on securities available-for-sale $ (6,105) $ 20,998 $ 14,893 Unrealized loss on retirement plans (17,349) (5,045) (22,394) TOTAL $ (23,454) $ 15,953 $ (7,501) Balance at December 31, 2020 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 $ 233 Net securities gains (losses) on available-for-sale (58) Income tax expense securities $ 175 Net of tax Amortization of $ (1,967) (a) retirement plan items 492 Income tax expense $ (1,475) Net of tax Total reclassifications for the period $ (1,300) Net of tax (a) Included in the computation of net periodic benefit cost which is included in salaries and benefits. (see Footnote 16 for additional details). Balance at December 31, 2019 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 $ 44 Net securities gains (losses) on available-for-sale (11) Income tax expense securities $ 33 Net of tax Amortization of $ (1,558) (a) retirement plan items 390 Income tax expense $ (1,168) Net of tax Total reclassifications for the period $ (1,135) Net of tax (a) Included in the computation of net periodic benefit cost which is included in salaries and benefits. (see Footnote 16 for additional details). Balance at December 31, 2018 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 $ 2 Net securities gains (losses) on available-for-sale — Income tax expense securities $ 2 Net of tax Amortization of $ (1,447) (a) retirement plan items 362 Income tax expense $ (1,085) Net of tax Total reclassifications for the period $ (1,083) Net of tax (a) Included in the computation of net periodic benefit cost which is included in salaries and benefits. (see Footnote 16 for additional details).

REGULATORY MATTERS_

REGULATORY MATTERS:	12 Months Ended
	Dec. 31, 2020
Financial Services, 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, 2020, approximately $15.5 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 2018 was 1.875%. The net unrealized gain or loss on available for sale securities is not included in computing regulatory capital. Management believes, as of December 31, 2020 and 2019, that the Corporation meets all capital adequacy requirements to which it is subject. As of December 31, 2020, 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 2020 and 2019. 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 – 2020 $ 538,440 17.40 % $ 324,849 10.500 % N/A N/A Corporation – 2019 $ 495,817 16.16 % $ 322,091 10.500 % N/A N/A First Financial Bank – 2020 507,869 17.03 % 313,075 10.500 % 298,166 10.00 % First Financial Bank – 2019 472,995 15.91 % 312,111 10.500 % 297,249 10.00 % Common equity tier I capital Corporation – 2020 $ 499,664 16.15 % $ 216,566 7.000 % N/A N/A Corporation – 2019 $ 475,874 15.51 % $ 214,728 7.000 % N/A N/A First Financial Bank – 2020 470,551 15.78 % 208,716 7.000 % 193,808 6.50 % First Financial Bank – 2019 457,649 15.40 % 208,074 7.000 % 193,212 6.50 % Tier I risk-based capital Corporation – 2020 $ 499,664 16.15 % $ 262,973 8.500 % N/A N/A Corporation – 2019 $ 475,874 15.51 % $ 260,741 8.500 % N/A N/A First Financial Bank – 2020 470,551 15.78 % 253,441 8.500 % 238,533 8.00 % First Financial Bank – 2019 457,649 15.40 % 252,661 8.500 % 237,799 8.00 % Tier I leverage capital Corporation – 2020 $ 499,664 11.24 % $ 177,781 4.00 % N/A N/A Corporation – 2019 $ 475,874 12.04 % $ 158,081 4.00 % N/A N/A First Financial Bank – 2020 470,551 10.90 % 172,728 4.00 % 215,910 5.00 % First Financial Bank – 2019 457,649 11.93 % 153,453 4.00 % 191,816 5.00 %

PARENT COMPANY CONDENSED FINANC

PARENT COMPANY CONDENSED FINANCIAL STATEMENTS:	12 Months Ended
	Dec. 31, 2020
Condensed Financial Information Disclosure [Abstract]
PARENT COMPANY CONDENSED FINANCIAL STATEMENTS	PARENT COMPANY CONDENSED FINANCIAL STATEMENTS: The parent company’s condensed balance sheets as of December 31, 2020 and 2019, 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, 2020, are as follows: CONDENSED BALANCE SHEETS December 31, (Dollar amounts in thousands) 2020 2019 ASSETS Cash deposits in affiliated banks $ 2,480 $ 4,394 Investments in subsidiaries 597,888 566,384 Land and headquarters building, net 4,614 4,807 Other 6,000 23 Total Assets $ 610,982 $ 575,608 LIABILITIES AND SHAREHOLDERS' EQUITY Liabilities Borrowings $ — $ 10,177 Dividends payable 7,182 7,142 Other liabilities 6,808 681 TOTAL LIABILITIES 13,990 18,000 Shareholders' Equity 596,992 557,608 TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY $ 610,982 $ 575,608 CONDENSED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME Years Ended December 31, (Dollar amounts in thousands) 2020 2019 2018 Dividends from subsidiaries $ 31,069 $ 81,281 $ 13,651 Other income 1,054 720 720 Interest on borrowings (374) (142) — Other operating expenses (3,430) (4,327) (2,814) Income before income taxes and equity in undistributed earnings of subsidiaries 28,319 77,532 11,557 Income tax benefit 801 908 934 Income before equity in undistributed earnings of subsidiaries 29,120 78,440 12,491 Equity in undistributed earnings of subsidiaries 24,724 (29,568) 34,092 Net income $ 53,844 $ 48,872 $ 46,583 Comprehensive income $ 71,109 $ 64,825 $ 40,199 CONDENSED STATEMENTS OF CASH FLOWS Years Ended December 31, (Dollar amounts in thousands) 2020 2019 2018 CASH FLOWS FROM OPERATING ACTIVITIES: Net Income $ 53,844 $ 48,872 $ 46,583 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 328 193 193 Equity in undistributed earnings (24,724) (29,568) (34,092) Contribution of shares to ESOP 1,471 1,251 1,087 Restricted stock compensation 820 801 745 Increase (decrease) in other liabilities 6,127 (2,150) (585) (Increase) decrease in other assets (5,977) 1,187 (900) NET CASH FROM OPERATING ACTIVITIES 31,889 20,586 13,031 CASH FLOWS FROM INVESTING ACTIVITIES: Cash received (disbursed) from acquisitions — (6,571) — NET CASH FROM INVESTING ACTIVITIES — (6,571) — CASH FLOWS FROM FINANCING ACTIVITIES: Principal payments on borrowings (10,310) — — Purchase of treasury stock (9,220) (315) (391) Dividends paid (14,273) (12,648) (12,496) NET CASH FROM FINANCING ACTIVITES (33,803) (12,963) (12,887) NET (DECREASE) INCREASE IN CASH (1,914) 1,052 144 CASH, BEGINNING OF YEAR 4,394 3,342 3,198 CASH, END OF YEAR $ 2,480 $ 4,394 $ 3,342 Supplemental disclosures of cash flow information: Cash paid during the year for: Interest $ 375 $ — $ — Income taxes $ 7,538 $ 9,595 $ 7,185

BUSINESS AND SIGNIFICANT ACCO_2

BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES: (Policies)	12 Months Ended
	Dec. 31, 2020
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. First Chanticleer Corporation was dissolved in December 2020.
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. 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 impairment related to credit losses 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 credit 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	Purchased Credit Deteriorated (PCD) Loans: The Corporation purchases individual loans and groups of loans, some of which have experienced more than insignificant credit deterioration since origination. PCD loans are recorded at the amount paid . An allowance for credit losses is determined using the same methodology as other loans held for investment. The initial allowance for credit losses determined on a collective basis is allocated to individual loans. The sum of the loan's purchase price and initial allowance for credit losses becomes its amortized cost basis. The difference between the initial amortized cost basis and the par value of the loan is a noncredit discount or premium, which is accreted or amortized into interest income over the life of the loan. Subsequent changes to the allowance for credit losses are recorded through provision for credit losses.
Concentration of Credit Risk	Concentration of Credit Risk: Most of the Corporation's business activity is with customers located within west-central Indiana, east-central Illinois, western Kentucky, and middle and western Tennessee. 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 Credit Losses: Credit quality of loans is continuously monitored by management and is reflected within the allowance for credit losses for loans. The allowance for credit losses is an estimate of expected losses inherent within the Company’s loan portfolio. Credit quality is assessed and monitored by evaluating various attributes and the results of those evaluations are utilized in underwriting new loans and in our process for estimating expected credit losses. The allowance for credit losses is adjusted by a credit loss expense, which is reported in earnings, and reduced by the charge-off of loan amounts, net of recoveries. We have made a policy election to report accrued interest receivable as a separate line item on the balance sheet. The allowance for credit loss estimation process involves procedures to appropriately consider the unique characteristics of the loan portfolio segments. These segments are further disaggregated into loan classes based on the level at which credit risk is monitored. When computing the level of expected credit losses, credit loss assumptions are estimated using a model that categorizes loan pools based on loss history, delinquency status, and other credit trends and risk characteristics, including current conditions and reasonable and supportable forecasts about the future. Determining the appropriateness of the allowance is complex and requires judgment by management about the effect of matters that are inherently uncertain. In future periods evaluations of the overall loan portfolio, in light of the factors and forecasts then prevailing, may result in significant changes in the allowance and credit loss expense in those future periods. We utilize a cohort methodology to determine the allowance for credit losses. This method identifies and captures the balance of a pool of loans with similar risk characteristics at a particular point in time to form a cohort. Then it tracks the respective losses generated by that cohort of loans over their remaining life. When past performance may not be representative of future losses, loss rates are adjusted for qualitative and economic forecast factors. The allowance level is influenced by loan volumes, loan quality rating migration or delinquency status, changes in historical loss experience, and other conditions influencing loss expectations, such as reasonable and supportable forecasts of economic conditions. The methodology for estimating the amount of expected credit losses reported in the allowance for credit losses consists of specific and pooled components. The specific component relates to loans that are individually evaluated. A loan is individually evaluated when the loan no longer shares similar risk characteristics with other loans in its respective loan pool. If a loan is individually evaluated, a portion of the allowance is allocated so that the loan is reported at the fair value of collateral, adjusted for selling costs, if repayment is expected solely from the collateral. The pooled component covers pools of loans that share similar risk characteristics, and is based on historical loss experienced since 2008. This historical loss experience is supplemented with other current factors based on the risks present for each portfolio segment. These current factors include items such as changes in lending policies or procedures, asset specific risks, the impact of COVID-19 on customers’ operations,
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.
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
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. With the decrease in market value as a result of the pandemic, the Corporation engaged a third party to conduct an in-depth analysis of the Corporation as of October 31, 2020. The final results determined that there was no impairment of goodwill. From the effective date of the analysis to December 31, 2020, the Corporation's market value increased. 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 2020, 2019 and 2018. There is a liability of $6.8 million and $7.6 million as of year-end 2020 and 2019. 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	:

FAIR VALUES OF FINANCIAL INST_2

FAIR VALUES OF FINANCIAL INSTRUMENTS: (Tables)	12 Months Ended
	Dec. 31, 2020
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, 2020 (Dollar amounts in thousands) Level 1 Level 2 Level 3 Carrying Value U.S. Government entity mortgage-backed securities $ — $ 97,814 $ — $ 97,814 Mortgage-backed securities, residential — 355,121 — 355,121 Mortgage-backed securities, commercial — 18,490 — 18,490 Collateralized mortgage obligations — 214,160 — 214,160 State and municipal obligations — 304,236 1,895 306,131 Municipal taxable — 23,139 — 23,139 U.S. Treasury — 2,753 — 2,753 Collateralized debt obligations — — 3,136 3,136 TOTAL $ — $ 1,015,713 $ 5,031 $ 1,020,744 Derivative Assets $ 2,465 Derivative Liabilities (2,465) December 31, 2019 (Dollar amounts in thousands) Level 1 Level 2 Level 3 Carrying Value U.S. Government entity mortgage-backed securities $ — $ 103,633 $ — $ 103,633 Mortgage-backed securities, residential — 243,382 — 243,382 Mortgage-backed securities, commercial — 22,104 — 22,104 Collateralized mortgage obligations — 281,311 — 281,311 State and municipal obligations — 261,869 2,565 264,434 Municipal taxable — 730 — 730 U.S. Treasury — 7,504 — 7,504 Collateralized debt obligations — — 3,619 3,619 TOTAL $ — $ 920,533 $ 6,184 $ 926,717 Derivative Assets $ 828 Derivative Liabilities (828)
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, 2020 and 2019. Fair Value Measurements Using Significant Unobservable Inputs (Level 3) State and municipal obligations Collateralized debt obligations Total Beginning balance, January 1 $ 2,565 $ 3,619 $ 6,184 Total realized/unrealized gains or losses Included in earnings — — — Included in other comprehensive income — (483) (483) Purchases — — — Settlements (670) — (670) Ending balance, December 31 $ 1,895 $ 3,136 $ 5,031 Fair Value Measurements Using Significant Unobservable Inputs (Level 3) State and Collateralized Total Beginning balance, January 1 $ 3,135 $ 3,258 $ 6,393 Total realized/unrealized gains or losses Included in earnings — — — Included in other comprehensive income — 498 498 Transfers — — — Settlements (570) (137) (707) Ending balance, December 31 $ 2,565 $ 3,619 $ 6,184
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, 2020 and 2019. 2020 Fair Value Valuation Technique(s) Unobservable Input(s) Range State and municipal obligations $ 1,895 Discounted cash flow Discount rate 3.41%-4.44% Probability of default — % Other real estate $ 1,012 Sales comparison/income approach Discount rate for age of appraisal and market conditions 5.00%-20.00% Collateral dependent loans $ 6,581 Discounted cash flows Discount rate for age of appraisal and market conditions 0.00%-50.00% 2019 Fair Value Valuation Technique(s) Unobservable Input(s) Range State and municipal obligations $ 2,565 Discounted cash flow Discount rate 2.87%-4.44% Probability of default — % Other real estate $ 3,625 Sales comparison/income approach Discount rate for age of appraisal and market conditions 5.00%-20.00% Impaired Loans $ 100 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 table presents impaired collateral dependent loans measured at fair value on a non-recurring basis by class of loans as of December 31, 2019. December 31, 2019 (Dollar amounts in thousands) Carrying Value Allowance Fair Value Commercial Commercial & Industrial $ 148 $ 48 $ 100 Farmland — — — Non Farm, Non Residential — — — Agriculture — — — All Other Commercial — — — Residential First Liens — — — Home Equity — — — Junior Liens — — — Multifamily — — — All Other Residential — — — Consumer Motor Vehicle — — — All Other Consumer — — — TOTAL $ 148 $ 48 $ 100
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 tables below and were determined based on the above assumptions: December 31, 2020 Carrying Fair Value (Dollar amounts in thousands) Value Level 1 Level 2 Level 3 Total Cash and due from banks $ 657,470 $ 25,645 $ 631,825 $ — $ 657,470 Securities available-for-sale 1,020,744 — 1,015,713 5,031 1,020,744 Restricted stock 14,812 n/a n/a n/a n/a Loans, net 2,563,242 — — 2,560,683 2,560,683 Accrued interest receivable 16,957 — 3,521 13,436 16,957 Deposits (3,755,945) — (3,763,358) — (3,763,358) Short-term borrowings (116,061) — (116,061) — (116,061) Other borrowings (5,859) — (6,297) — (6,297) Accrued interest payable (1,033) — (1,033) — (1,033) December 31, 2019 Carrying Fair Value (Dollar amounts in thousands) Value Level 1 Level 2 Level 3 Total Cash and due from banks $ 127,426 $ 26,275 $ 101,151 $ — $ 127,426 Securities available-for-sale 926,717 — 920,533 6,184 926,717 Restricted stock 15,394 n/a n/a n/a n/a Loans, net 2,636,447 — — 2,648,692 2,648,692 Accrued interest receivable 18,523 — 3,583 14,940 18,523 Deposits (3,275,357) — (3,278,099) — (3,278,099) Short-term borrowings (80,119) — (80,119) — (80,119) Other borrowings (30,973) — (31,143) — (31,143) Accrued interest payable (1,739) — (1,739) — (1,739)

SECURITIES_ (Tables)

SECURITIES: (Tables)	12 Months Ended
	Dec. 31, 2020
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, 2020 Amortized Unrealized (Dollar amounts in thousands) Cost Gains Losses Fair Value U.S. Government entity mortgage-backed securities $ 92,710 $ 5,105 $ (1) $ 97,814 Mortgage-backed securities, residential 346,606 8,794 (279) 355,121 Mortgage-backed securities, commercial 17,931 559 — 18,490 Collateralized mortgage obligations 209,556 4,761 (157) 214,160 State and municipal obligations 285,837 20,294 — 306,131 Municipal taxable 22,440 702 (3) 23,139 U.S. Treasury 2,750 3 — 2,753 Collateralized debt obligations — 3,136 — 3,136 TOTAL $ 977,830 $ 43,354 $ (440) $ 1,020,744 December 31, 2019 Amortized Unrealized (Dollar amounts in thousands) Cost Gains Losses Fair Value U.S. Government entity mortgage-backed securities $ 102,490 $ 1,293 $ (150) $ 103,633 Mortgage-backed securities, residential 240,753 2,979 (350) 243,382 Mortgage-backed securities, commercial 22,036 73 (5) 22,104 Collateralized mortgage obligations 280,797 1,735 (1,221) 281,311 State and municipal obligations 253,277 11,265 (108) 264,434 Municipal taxable 728 2 — 730 U.S. Treasury 7,494 10 — 7,504 Collateralized debt obligations — 3,619 — 3,619 TOTAL $ 907,575 $ 20,976 $ (1,834) $ 926,717
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, 2020, 2019 and 2018, respectively. (Dollar amounts in thousands) 2020 2019 2018 Proceeds $ 36,696 $ 11,210 $ 2,418 Gross gains 290 55 5 Gross losses (57) (11) (3)
Schedule of contractual maturities of debt securities	Contractual maturities of debt securities at year-end 2020 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 $ 13,168 $ 13,304 Due after one but within five years 47,560 49,207 Due after five but within ten years 64,596 68,349 Due after ten years 278,413 302,113 403,737 432,973 Mortgage-backed securities and collateralized mortgage obligations 574,093 587,771 TOTAL $ 977,830 $ 1,020,744
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, 2020 and 2019. December 31, 2020 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 $ — $ — 944 (1) $ 944 $ (1) Mortgage-backed securities, residential 76,962 (279) — — 76,962 (279) Collateralized mortgage obligations 12,282 (108) 3,767 (49) 16,049 (157) Municipal taxable 747 (3) — — 747 (3) U.S. Treasury 250 — — — 250 — Total temporarily impaired securities $ 90,241 $ (390) $ 4,711 $ (50) $ 94,952 $ (440) December 31, 2019 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 $ 29,183 $ (150) $ — $ — $ 29,183 $ (150) Mortgage-backed securities, residential 55,665 (243) 18,724 (107) 74,389 (350) Mortgage-backed securities, commercial 4,391 (5) — — 4,391 (5) Collateralized mortgage obligations 33,398 (314) 61,781 (907) 95,179 (1,221) State and municipal obligations 8,996 (61) 461 (47) 9,457 (108) Total temporarily impaired securities $ 131,633 $ (773) $ 80,966 $ (1,061) $ 212,599 $ (1,834)
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) 2020 2019 2018 Beginning balance, January 1, $ 2,974 $ 2,974 $ 7,132 Reductions for securities called during the period — — (4,158) Ending balance, December 31, $ 2,974 $ 2,974 $ 2,974

LOANS_ (Tables)

LOANS: (Tables)	12 Months Ended
	Dec. 31, 2020
Loans and Leases Receivable, Net Amount [Abstract]
Summary of Loans	Loans are summarized as follows: December 31, (Dollar amounts in thousands) 2020 2019 Commercial $ 1,521,711 $ 1,584,447 Residential 604,652 682,077 Consumer 479,750 386,006 Total gross loans 2,606,113 2,652,530 Deferred costs, net 4,181 3,860 Allowance for credit losses (47,052) (19,943) TOTAL $ 2,563,242 $ 2,636,447
Capitalized Mortgage Servicing Rights	Activity for capitalized mortgage servicing rights (included in other assets) was as follows: December 31, (Dollar amounts in thousands) 2020 2019 2018 Servicing rights: Beginning of year $ 1,435 $ 1,431 $ 1,434 Additions 956 579 513 Amortized to expense (790) (575) (516) End of year $ 1,601 $ 1,435 $ 1,431

ACQUISITIONS AND FDIC INDEMNI_2

ACQUISITIONS AND FDIC INDEMNIFICATION ASSET: (Tables)	12 Months Ended
	Dec. 31, 2020
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, 2019, are shown in the following table: 2019 (Dollar amounts in thousands) Commercial Consumer Total Beginning balance $ 1,530 $ — $ 1,530 Loans added, as initially reported 8,610 260 $ 8,870 Measurement period adjustments (1,597) (260) $ (1,857) Disposals (1,274) — (1,274) ASC 310-30 Loans $ 7,269 $ — $ 7,269

ALLOWANCE FOR LOAN LOSSES_ (Tab

ALLOWANCE FOR LOAN LOSSES: (Tables)	12 Months Ended
	Dec. 31, 2020
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 credit losses by portfolio segment for the years ended December 31, 2020, 2019 and 2018. Allowance for Credit Losses: December 31, 2020 (Dollar amounts in thousands) Commercial Residential Consumer Total Beginning balance $ 10,337 $ 1,302 $ 8,304 $ 19,943 Impact of adopting ASC 326 8,427 9,515 2,118 20,060 Provision for credit losses (1,622) 8,612 3,538 10,528 Loans charged -off (1,097) (944) (6,355) (8,396) Recoveries 856 657 3,404 4,917 Ending Balance $ 16,901 $ 19,142 $ 11,009 $ 47,052 Allowance for Credit Losses: December 31, 2019 (Dollar amounts in thousands) Commercial Residential Consumer Unallocated Total Beginning balance $ 9,848 $ 1,313 $ 7,481 $ 1,794 $ 20,436 Provision for credit losses 621 (321) 4,802 (402) 4,700 Loans charged -off (2,616) (1,050) (7,007) — (10,673) Recoveries 1,092 1,360 3,028 — 5,480 Ending Balance $ 8,945 $ 1,302 $ 8,304 $ 1,392 $ 19,943 Allowance for Credit Losses: December 31, 2018 (Dollar amounts in thousands) Commercial Residential Consumer Unallocated Total Beginning balance $ 10,281 $ 1,455 $ 6,709 $ 1,464 $ 19,909 Provision for credit losses 83 60 5,295 330 5,768 Loans charged -off (1,122) (841) (6,868) — (8,831) Recoveries 606 639 2,345 — 3,590 Ending Balance $ 9,848 $ 1,313 $ 7,481 $ 1,794 $ 20,436
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 credit losses and the recorded investment in loans by portfolio segment and based on impairment method at December 31, 2019: Allowance for Credit Losses: December 31, 2019 (Dollar amounts in thousands) Commercial Residential Consumer Unallocated Total Individually evaluated for impairment $ 48 $ — $ — $ — $ 48 Collectively evaluated for impairment 8,897 1,302 8,304 1,392 19,895 Acquired with deteriorated credit quality — — — — — BALANCE AT END OF YEAR $ 8,945 $ 1,302 $ 8,304 $ 1,392 $ 19,943 Loans (Dollar amounts in thousands) Commercial Residential Consumer Total Individually evaluated for impairment $ 3,161 $ 3,952 $ — $ 7,113 Collectively evaluated for impairment 1,584,169 680,069 387,655 2,651,893 Acquired with deteriorated credit quality 7,436 — — 7,436 BALANCE AT END OF YEAR $ 1,594,766 $ 684,021 $ 387,655 $ 2,666,442
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, 2019 Allowance Cash Basis Unpaid for Credit Average Interest Interest Principal Recorded Losses Recorded Income Income Balance Investment Allocated Investment Recognized Recognized With no related allowance recorded: Commercial Commercial & Industrial $ 1,519 $ 989 $ — $ 848 $ — $ — Farmland 1,997 1,997 — 1,999 — — Non Farm, Non Residential — — — — — — Agriculture — — — — — — All Other Commercial 27 27 — 461 — — Residential First Liens 3,952 3,952 — 4,055 — — Home Equity — — — — — — Junior Liens — — — — — — Multifamily — — — — — — All Other Residential — — — — — — Consumer Motor Vehicle — — — — — — All Other Consumer — — — — — — With an allowance recorded: Commercial Commercial & Industrial 148 148 48 1,108 — — Farmland — — — 84 — — Non Farm, Non Residential — — — — — — Agriculture — — — 138 — — All Other Commercial — — — — — — Residential First Liens — — — — — — Home Equity — — — — — — Junior Liens — — — — — — Multifamily — — — — — — All Other Residential — — — — — — Consumer Motor Vehicle — — — — — — All Other Consumer — — — — — — TOTAL $ 7,643 $ 7,113 $ 48 $ 8,693 $ — $ — December 31, 2018 Cash Basis Average Interest Interest Recorded Income Income Investment Recognized Recognized With no related allowance recorded: Commercial Commercial & Industrial $ 698 $ — $ — Farmland 1,579 — — Non Farm, Non Residential 1,443 — — Agriculture 49 — — All Other Commercial 1,172 — — Residential First Liens 3,371 — — Home Equity — — — Junior Liens 23 — — Multifamily — — — All Other Residential — — — Consumer Motor Vehicle — — — All Other Consumer — — — With an allowance recorded: Commercial Commercial & Industrial 688 — — Farmland 1,691 — — Non Farm, Non Residential — — — Agriculture 316 — — All Other Commercial — — — Residential First Liens 88 — — Home Equity — — — Junior Liens — — — Multifamily — — — All Other Residential — — — Consumer Motor Vehicle — — — All Other Consumer — — — TOTAL $ 11,118 $ — $ —
Schedule of non-performing loans	The following tables present the recorded investment in nonperforming loans by class of loans. December 31, 2020 Loans Past Non-accrual Due Over With No Allowance (Dollar amounts in thousands) Accruing Non-accrual For Credit Loss Commercial Commercial & Industrial $ — $ 4,838 $ 1,080 Farmland — 195 — Non Farm, Non Residential — 3,729 3,267 Agriculture — 409 — All Other Commercial — 533 24 Residential First Liens 1,746 2,604 86 Home Equity 88 30 — Junior Liens 252 206 — Multifamily — 1,380 — All Other Residential — 135 — Consumer Motor Vehicle 372 754 — All Other Consumer — 554 — TOTAL $ 2,458 $ 15,367 $ 4,457
Troubled debt restructurings on financing receivables	During the years ending December 31, 2020, 2019, and 2018 the terms of certain loans were modified as troubled debt restructurings (TDRs). The following tables present the activity for TDR's. 2020 (Dollar amounts in thousands) Commercial Residential Consumer Total January 1, $ 11 $ 3,485 $ 698 $ 4,194 Added — 692 304 996 Charged Off — (6) (158) (164) Payments (11) (582) (227) (820) December 31, $ — $ 3,589 $ 617 $ 4,206 2019 (Dollar amounts in thousands) Commercial Residential Consumer Total January 1, $ 145 $ 4,043 $ 618 $ 4,806 Added — 195 375 570 Charged Off — (24) (81) (105) Payments (134) (729) (214) (1,077) December 31, $ 11 $ 3,485 $ 698 $ 4,194 2018 (Dollar amounts in thousands) Commercial Residential Consumer Total January 1, $ 2,709 $ 3,611 $ 714 $ 7,034 Added — 984 295 1,279 Charged Off — (16) (137) (153) Payments (2,564) (536) (254) (3,354) December 31, $ 145 $ 4,043 $ 618 $ 4,806
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, 2020 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 $ 685 $ 746 $ 3,364 $ 4,795 $ 603,777 $ 608,572 Farmland 22 — 91 113 118,528 118,641 Non Farm, Non Residential 155 — 271 426 350,681 351,107 Agriculture 28 30 275 333 146,147 146,480 All Other Commercial — — 24 24 305,612 305,636 Residential First Liens 5,506 1,866 2,365 9,737 314,730 324,467 Home Equity 260 29 104 393 60,362 60,755 Junior Liens 421 68 341 830 53,346 54,176 Multifamily — — — — 151,042 151,042 All Other Residential — 50 — 50 15,918 15,968 Consumer Motor Vehicle 6,975 1,294 560 8,829 441,283 450,112 All Other Consumer 164 19 13 196 31,401 31,597 TOTAL $ 14,216 $ 4,102 $ 7,408 $ 25,726 $ 2,592,827 $ 2,618,553 Greater December 31, 2019 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 $ 2,885 $ 766 $ 1,379 $ 5,030 $ 594,925 $ 599,955 Farmland 132 — 2,089 2,221 137,730 139,951 Non Farm, Non Residential 3,749 104 — 3,853 398,854 402,707 Agriculture 277 128 — 405 162,794 163,199 All Other Commercial — — 109 109 288,845 288,954 Residential First Liens 6,452 1,292 1,458 9,202 375,924 385,126 Home Equity 124 63 34 221 70,813 71,034 Junior Liens 384 43 137 564 54,533 55,097 Multifamily — — — — 148,282 148,282 All Other Residential 1,082 — 890 1,972 22,510 24,482 Consumer Motor Vehicle 6,488 983 270 7,741 347,950 355,691 All Other Consumer 228 42 2 272 31,692 31,964 TOTAL $ 21,801 $ 3,421 $ 6,368 $ 31,590 $ 2,634,852 $ 2,666,442
Analysis of risk category of loans by class of loans	The following tables present the recorded investment of the commercial loan portfolio by risk category as of December 31, 2020: December 31, 2020 Term Loans at Amortized Cost Basis by Origination Year Revolving 2020 2019 2018 2017 2016 Prior Loans Total Commercial Commercial and Industrial Pass $ 159,494 $ 77,253 $ 64,298 $ 41,806 $ 20,564 $ 103,598 $ 91,615 $ 558,628 Special Mention 4,848 1,331 4,427 216 1,278 4,566 3,695 20,361 Substandard 3,780 323 4,187 1,148 3,543 2,565 3,124 18,670 Doubtful — — — — — — — — Not Rated 2,618 1,772 1,446 580 105 2,255 — 8,776 Subtotal $ 170,740 $ 80,679 $ 74,358 $ 43,750 $ 25,490 $ 112,984 $ 98,434 $ 606,435 Farmland Pass $ 10,010 $ 12,775 $ 12,149 $ 10,089 $ 15,863 $ 40,338 $ 1,386 $ 102,610 Special Mention 988 947 — 230 1,900 2,656 — 6,721 Substandard 1,718 2,303 — 716 1,628 826 — 7,191 Doubtful — — — — — — — — Not Rated — — — — — — — — Subtotal $ 12,716 $ 16,025 $ 12,149 $ 11,035 $ 19,391 $ 43,820 $ 1,386 $ 116,522 Non Farm, Non Residential Pass $ 39,914 $ 33,261 $ 38,111 $ 63,371 $ 49,511 $ 83,052 $ 4,092 $ 311,312 Special Mention — 998 — 305 9,982 6,811 — 18,096 Substandard — 1,188 — 4,310 7,484 7,028 — 20,010 Doubtful — — — — — — — — Not Rated — — — — — 682 — 682 Subtotal $ 39,914 $ 35,447 $ 38,111 $ 67,986 $ 66,977 $ 97,573 $ 4,092 $ 350,100 Agriculture Pass $ 13,336 $ 8,330 $ 3,485 $ 5,329 $ 3,732 $ 16,792 $ 67,052 $ 118,056 Special Mention — 1,483 1,203 664 5 428 7,611 11,394 Substandard — 3,834 18 223 2,435 1,988 5,926 14,424 Doubtful — — — — — — — — Not Rated 159 216 110 6 13 — — 504 Subtotal $ 13,495 $ 13,863 $ 4,816 $ 6,222 $ 6,185 $ 19,208 $ 80,589 $ 144,378 Other Commercial Pass $ 44,673 $ 57,200 $ 41,470 $ 61,442 $ 40,196 $ 50,325 $ 5,162 $ 300,468 Special Mention — — — 7 — 2,786 — 2,793 Substandard — — — 24 528 24 — 576 Doubtful — — — — — — — — Not Rated — 3 52 39 345 — — 439 Subtotal $ 44,673 $ 57,203 $ 41,522 $ 61,512 $ 41,069 $ 53,135 $ 5,162 $ 304,276 Residential Multifamily >5 Residential Pass $ 44,599 $ 9,892 $ 36,563 $ 19,749 $ 4,676 $ 21,704 $ 1,293 $ 138,476 Special Mention — — — — 102 10,662 — 10,764 Substandard — — 1,380 — — — — 1,380 Doubtful — — — — — — — — Not Rated — — — — — — — — Subtotal $ 44,599 $ 9,892 $ 37,943 $ 19,749 $ 4,778 $ 32,366 $ 1,293 $ 150,620 Total Pass $ 312,026 $ 198,711 $ 196,076 $ 201,786 $ 134,542 $ 315,809 $ 170,600 $ 1,529,550 Special Mention 5,836 4,759 5,630 1,422 13,267 27,909 11,306 70,129 Substandard 5,498 7,648 5,585 6,421 15,618 12,431 9,050 62,251 Doubtful — — — — — — — — Not Rated 2,777 1,991 1,608 625 463 2,937 — 10,401 Total commercial loans $ 326,137 $ 213,109 $ 208,899 $ 210,254 $ 163,890 $ 359,086 $ 190,956 $ 1,672,331 The Corporation evaluates the credit quality of its other loan portfolios, which includes residential real estate, consumer and lease financing loans, based primarily on the aging status of the loan and payment activity. Accordingly, loans on non-accrual status, loans past due 90 days or more and still accruing interest, and loans modified under troubled debt restructurings are considered to be nonperforming for purposes of credit quality evaluation. The following table presents the recorded investment of our other loan portfolio based on the credit risk profile of loans that are performing and loans that are nonperforming as of December 31, 2020: December 31, 2020 Term Loans at Amortized Cost Basis by Origination Year Revolving 2020 2019 2018 2017 2016 Prior Loans Total Residential First Liens Performing $ 47,875 $ 33,737 $ 31,634 $ 36,426 $ 30,419 $ 135,456 $ 3,235 $ 318,782 Non-performing — 40 95 343 107 4,062 — 4,647 Subtotal $ 47,875 $ 33,777 $ 31,729 $ 36,769 $ 30,526 $ 139,518 $ 3,235 $ 323,429 Home Equity Performing $ 854 $ 135 $ 644 $ 20 $ — $ 1,525 $ 57,334 $ 60,512 Non-performing — — 1 — — 91 24 116 Subtotal $ 854 $ 135 $ 645 $ 20 $ — $ 1,616 $ 57,358 $ 60,628 Junior Liens Performing $ 13,125 $ 12,742 $ 11,139 $ 6,214 $ 3,948 $ 5,099 $ 1,333 $ 53,600 Non-performing — 129 48 198 9 66 — 450 Subtotal $ 13,125 $ 12,871 $ 11,187 $ 6,412 $ 3,957 $ 5,165 $ 1,333 $ 54,050 Other Residential Performing $ 9,773 $ 2,775 $ 1,372 $ 292 $ 178 $ 733 $ 651 $ 15,774 Non-performing — 62 50 — — 39 — 151 Subtotal $ 9,773 $ 2,837 $ 1,422 $ 292 $ 178 $ 772 $ 651 $ 15,925 Consumer Motor Vehicle Performing $ 245,839 $ 113,293 $ 51,649 $ 24,786 $ 10,026 $ 1,600 $ — $ 447,193 Non-performing 318 355 257 127 36 11 — 1,104 Subtotal $ 246,157 $ 113,648 $ 51,906 $ 24,913 $ 10,062 $ 1,611 $ — $ 448,297 Other Consumer Performing $ 15,298 $ 7,328 $ 2,622 $ 724 $ 854 $ 703 $ 3,352 $ 30,881 Non-performing 231 200 92 22 — 8 19 572 Subtotal $ 15,529 $ 7,528 $ 2,714 $ 746 $ 854 $ 711 $ 3,371 $ 31,453 Total Performing $ 332,764 $ 170,010 $ 99,060 $ 68,462 $ 45,425 $ 145,116 $ 65,905 $ 926,742 Non-performing 549 786 543 690 152 4,277 43 7,040 Total other loans $ 333,313 $ 170,796 $ 99,603 $ 69,152 $ 45,577 $ 149,393 $ 65,948 $ 933,782 As of December 31, 2019, and based on the most recent analysis performed, the risk category of loans by class of loans is as follows: Special (Dollar amounts in thousands) Pass Mention Substandard Doubtful Not Rated Total Commercial Commercial & Industrial $ 549,341 $ 19,253 $ 26,349 $ 5 $ 2,761 $ 597,709 Farmland 119,858 8,673 8,644 — 100 137,275 Non Farm, Non Residential 381,404 4,424 12,269 — 3,678 401,775 Agriculture 127,144 4,507 27,490 — 985 160,126 All Other Commercial 283,266 3,141 1,120 — 35 287,562 Residential First Liens 174,338 926 4,382 — 204,266 383,912 Home Equity 18,417 — 134 11 52,280 70,842 Junior Liens 2,839 64 178 76 51,817 54,974 Multifamily 146,497 112 1,315 — 19 147,943 All Other Residential 12,624 — 205 — 11,577 24,406 Consumer Motor Vehicle 2,880 — 538 — 350,780 354,198 All Other Consumer 3,155 — 38 — 28,615 31,808 TOTAL $ 1,821,763 $ 41,100 $ 82,662 $ 92 $ 706,913 $ 2,652,530

PREMISES AND EQUIPMENT_ (Tables

PREMISES AND EQUIPMENT: (Tables)	12 Months Ended
	Dec. 31, 2020
Property, Plant and Equipment, Gross [Abstract]
Schedule of Premises and Equipment	Premises and equipment are summarized as follows: December 31, (Dollar amounts in thousands) 2020 2019 Land $ 17,574 $ 17,574 Building and leasehold improvements 66,658 66,592 Furniture and equipment 42,167 39,715 126,399 123,881 Less accumulated depreciation (64,336) (61,305) TOTAL $ 62,063 $ 62,576
Schedule of Rent Expense	Rent commitments, before considering renewal options that generally are present, were as follows: 2021 $ 851 2022 737 2023 637 2024 369 2025 237 Thereafter 795 $ 3,626 See Note 19 for additional discussion on leases.

GOODWILL AND INTANGIBLE ASSET_2

GOODWILL AND INTANGIBLE ASSETS: (Tables)	12 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets Subject to Amortization	Intangible assets subject to amortization at December 31, 2020 and 2019 are as follows: 2020 2019 Gross Accumulated Gross Accumulated (Dollar amounts in thousands) Amount Amortization Amount Amortization Core deposit intangible $ 21,205 $ 12,233 $ 21,205 $ 10,562 $ 21,205 $ 12,233 $ 21,205 $ 10,562
Estimated Amortization Expense	Estimated amortization expense for the next five years is as follows: In thousands 2021 $ 1,615 2022 1,390 2023 1,127 2024 838 2025 711

DEPOSITS_ (Tables)

DEPOSITS: (Tables)	12 Months Ended
	Dec. 31, 2020
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) 2021 $ 358,165 2022 97,159 2023 70,677 2024 28,169 2025 15,162

SHORT-TERM BORROWINGS_ (Tables)

SHORT-TERM BORROWINGS: (Tables)	12 Months Ended
	Dec. 31, 2020
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, 2020 and 2019 is presented below: (Dollar amounts in thousands) 2020 2019 Federal funds purchased $ 6,500 $ 900 Repurchase-agreements 109,561 79,219 $ 116,061 $ 80,119 (Dollar amounts in thousands) 2020 2019 Average amount outstanding $ 90,561 $ 60,915 Maximum amount outstanding at a month end 116,061 91,750 Average interest rate during year 0.63 % 1.84 % Interest rate at year-end 0.11 % 0.31 %

OTHER BORROWINGS_ (Tables)

OTHER BORROWINGS: (Tables)	12 Months Ended
	Dec. 31, 2020
Other Borrowings Disclosure [Abstract]
Schedule of other borrowings	(Dollar amounts in thousands) 2020 2019 FHLB advances $ 5,859 $ 20,796 Junior subordinated debentures — 10,177 TOTAL $ 5,859 $ 30,973
Aggregate Minimum Annual Retirements	2021 $ — 2022 — 2023 6 2024 — 2025 — Thereafter — $ 6

INCOME TAXES_ (Tables)

INCOME TAXES: (Tables)	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income Tax Expense	Income tax expense is summarized as follows: (Dollar amounts in thousands) 2020 2019 2018 Federal: Currently payable $ 7,886 $ 7,118 $ 7,018 Deferred 1,188 2,435 1,793 9,074 9,553 8,811 State: Currently payable 2,422 2,168 1,699 Deferred 196 406 635 2,618 2,574 2,334 TOTAL $ 11,692 $ 12,127 $ 11,145
Reconciliation of Income Tax Expense	The reconciliation of income tax expense with the amount computed by applying the statutory federal income tax rate of 21% to income before income taxes is summarized as follows: (Dollar amounts in thousands) 2020 2019 2018 Federal income taxes computed at the statutory rate $ 13,763 $ 12,810 $ 12,122 Add (deduct) tax effect of: Tax exempt income (2,643) (2,551) (2,495) ESOP dividend deduction (98) (115) (103) State tax, net of federal benefit 2,068 2,034 1,846 General business tax credits (1,648) (148) (148) Other, net 250 97 (77) TOTAL $ 11,692 $ 12,127 $ 11,145
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, 2020 and 2019, are as follows: (Dollar amounts in thousands) 2020 2019 Deferred tax assets: Other than temporary impairment $ 753 $ 754 Net unrealized losses on retirement plans 8,132 7,465 Loan loss provisions 12,150 5,288 Deferred compensation 2,496 2,615 Compensated absences 623 611 Post-retirement benefits 1,286 1,309 Lease liability 1,450 1,503 Purchase accounting 1,060 1,600 Deferred loss on acquisition — 482 Other 2,186 2,161 GROSS DEFERRED ASSETS 30,136 23,788 Deferred tax liabilities: Net unrealized gains on securities available-for-sale (8,752) (4,248) Depreciation (2,155) (2,376) Mortgage servicing rights (390) (332) Pensions (843) (475) Right-of-use asset (1,446) (1,501) Intangibles (5,458) (3,285) FHLB stock dividends (111) — Other (3,963) (2,827) GROSS DEFERRED LIABILITIES (23,118) (15,044) NET DEFERRED TAX ASSETS $ 7,018 $ 8,744
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) 2020 2019 2018 Balance at January 1 $ 825 $ 922 $ 825 Additions based on tax positions related to the current year 114 298 174 Additions based on tax positions related to prior years — — — Reductions due to the statute of limitations (72) (395) (77) Balance at December 31 $ 867 $ 825 $ 922

FINANCIAL INSTRUMENTS WITH OF_2

FINANCIAL INSTRUMENTS WITH OFF-BALANCE-SHEET RISK: (Tables)	12 Months Ended
	Dec. 31, 2020
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) 2020 2019 Home Equity $ 88,672 $ 87,327 Commercial Operating Lines 508,602 358,561 Other Commitments 119,108 105,872 TOTAL $ 716,382 $ 551,760 Commercial letters of credit $ 3,601 $ 3,851

RETIREMENT PLANS_ (Tables)

RETIREMENT PLANS: (Tables)	12 Months Ended
	Dec. 31, 2020
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) 2020 2019 2018 Service cost - benefits earned $ 1,300 $ 1,218 $ 1,388 Interest cost on projected benefit obligation 3,116 3,465 3,194 Expected return on plan assets (4,198) (3,585) (3,962) Net amortization and deferral 1,968 1,558 1,448 Net periodic pension cost 2,186 2,656 2,068 Net loss (gain) during the period 3,188 6,362 (1,192) Amortization of prior service cost (1) (1) (1) Amortization of unrecognized gain (loss) (1,967) (1,558) (1,447) Total recognized in other comprehensive (income) loss 1,220 4,803 (2,640) Total recognized net periodic pension cost and other comprehensive income $ 3,406 $ 7,459 $ (572)
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) 2020 2019 Change in benefit obligation: Benefit obligation at January 1 $ 102,791 $ 87,796 Service cost 1,300 1,218 Interest cost 3,116 3,465 Actuarial (gain) loss 6,845 14,233 Benefits paid (4,130) (3,921) Benefit obligation at December 31 109,922 102,791 Reconciliation of fair value of plan assets: Fair value of plan assets at January 1 73,962 64,335 Actual return on plan assets 7,856 11,456 Employer contributions 4,749 2,092 Benefits paid (4,130) (3,921) Fair value of plan assets at December 31 82,437 73,962 Funded status at December 31 (plan assets less benefit obligation) $ (27,485) $ (28,829)
Schedule of Assumptions Used	The accumulated benefit obligation for the defined benefit pension plan was $105.2 million and $98.4 million at year-end 2020 and 2019. Principal assumptions used to determine pension benefit obligation at year end: 2020 2019 Discount rate 2.52 % 3.22 % Rate of increase in compensation levels 3.00 3.00 Principal assumptions used to determine net periodic pension cost: 2020 2019 Discount rate 3.22 % 4.22 % 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 2020 and 2019 by asset category are as follows: Pension Plan ESOP Pension ESOP ASSET CATEGORY 2020 2020 2020 2019 2020 2019 Equity securities 25-75% 95-99% 63 % 63 % 99 % 98 % Debt securities 0-50% 0-0% 31 % 33 % — % — % Other 0-20% 0-5% 6 % 4 % 1 % 2 % TOTAL 100 % 100 % 100 % 100 %
Schedule Of Fair Value Of Plan Assets	The fair value of the plan assets at December 31, 2020 and 2019, by asset category, is as follows: Fair Value Measurements at Quoted Prices Significant Significant (Dollar amounts in thousands) Total (Level 1) (Level 2) (Level 3) Plan assets Equity securities $ 55,235 $ 55,235 $ — $ — Debt securities 12,673 — 12,673 — Investment Funds 14,529 14,529 — — Total plan assets $ 82,437 $ 69,764 $ 12,673 $ — Fair Value Measurements at Quoted Prices Significant Significant (Dollar amounts in thousands) Total (Level 1) (Level 2) (Level 3) Plan assets Equity securities $ 51,334 $ 51,334 $ — $ — Debt securities 13,104 — 13,104 — Investment Funds 9,524 9,524 — — Total plan assets $ 73,962 $ 60,858 $ 13,104 $ —
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) 2021 $ 4,917 2022 5,203 2023 5,423 2024 5,606 2025 5,735 2026-2030 30,615 Estimated Future Payments — The following benefit payments, which reflect expected future service, are expected: (Dollar amounts in thousands) 2021 $ 240 2022 244 2023 246 2024 250 2025 245 2026-2030 1,177
Schedule Of Weighted Average Assumptions	Weighted average assumptions at December 31: December 31, 2020 2019 Discount rate 2.52 % 3.22 % 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 2020 2019
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 12 11
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, 2020 and 2019 consist of: (Dollar amounts in thousands) 2020 2019 Net loss (gain) $ 29,006 $ 27,786 Prior service cost (credit) 1 2 $ 29,007 $ 27,788
Postretirement Health Coverage [Member]
Defined Benefit Plan Disclosure [Line Items]
Schedule of Defined Benefit Plans Disclosures	The Corporation uses a measurement date of December 31. Accrued post-retirement benefits as of December 31, 2020 and 2019 are as follows: December 31, (Dollar amounts in thousands) 2020 2019 Change in benefit obligation: Benefit obligation at January 1 $ 3,975 $ 3,420 Service cost 38 34 Interest cost 125 145 Plan participants' contributions 75 65 Actuarial (gain) loss 238 626 Benefits paid (304) (315) Benefit obligation at December 31 $ 4,147 $ 3,975 Funded status at December 31 $ 4,147 $ 3,975 Post-retirement health benefit expense included the following components: Years Ended December 31, (Dollar amounts in thousands) 2020 2019 2018 Service cost $ 38 $ 34 $ 42 Interest cost 125 146 131 Amortization of net actuarial loss (gain) — (16) — Net periodic benefit cost 163 164 173 Net loss (gain) during the period 238 626 (872) Amortization of prior service cost — 16 — Total recognized in other comprehensive income (loss) 238 642 (872) Total recognized net periodic benefit cost and other comprehensive income $ 401 $ 806 $ (699)
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) 2020 2019 2018 Net loss (gain) during the period $ 1,459 $ 1,357 $ 260 Amortization of prior service cost — — — Amortization of unrecognized gain (loss) (246) (75) (51) Total recognized in other comprehensive (income) loss $ 1,213 $ 1,282 $ 209
Schedule of Expected Benefit Payments	Estimated Future Payments — The following benefit payments, which reflect expected future service, are expected: (Dollar amounts on thousands) 2021 $ — 2022 203 2023 399 2024 390 2025 380 2026-2030 3,104

STOCK BASED COMPENSATION_ (Tabl

STOCK BASED COMPENSATION: (Tables)	12 Months Ended
	Dec. 31, 2020
Share-based Payment Arrangement [Abstract]
Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Restricted Stock Units, Vested and Expected to Vest	2020 2019 Number Weighted Average Number Weighted Average (shares in thousands) Outstanding Fair Value Outstanding Fair Value Nonvested balance at January 1, 18,931 43.44 16,999 45.92 Granted during the year 19,688 42.50 19,783 42.52 Vested during the year (18,895) 43.43 (17,851) 44.79 Forfeited during the year — — — — Nonvested balance at December 31, 19,724 42.51 18,931 43.44

OTHER COMPREHENSIVE INCOME (L_2

OTHER COMPREHENSIVE INCOME (LOSS): (Tables)	12 Months Ended
	Dec. 31, 2020
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, 2020 and 2019. Unrealized gains and 2020 Losses on Retirement (Dollar amounts in thousands) Securities plans Total Beginning balance, January 1 $ 14,893 $ (22,394) $ (7,501) Change in other comprehensive income before reclassification 19,444 (3,479) 15,965 Amounts reclassified from accumulated other comprehensive income (175) 1,475 1,300 Net current period other comprehensive income (loss) 19,269 (2,004) 17,265 Ending balance, December 31 $ 34,162 $ (24,398) $ 9,764 Unrealized gains and 2019 Losses on Retirement (Dollar amounts in thousands) Securities plans Total Beginning balance, January 1 $ (6,105) $ (17,349) $ (23,454) Change in other comprehensive income before reclassification 21,031 (6,213) 14,818 Amounts reclassified from accumulated other comprehensive income (33) 1,168 1,135 Net current period other comprehensive income (loss) 20,998 (5,045) 15,953 Ending balance, December 31 $ 14,893 $ (22,394) $ (7,501) Balance Current Balance (Dollar amounts in thousands) 1/1/2020 Change 12/31/2020 Unrealized gains (losses) on securities available-for-sale without other than temporary impairment $ 12,178 $ 19,632 $ 31,810 Unrealized gains (losses) on securities available-for-sale with other than temporary impairment 2,715 (363) 2,352 Total unrealized gain (loss) on securities available-for-sale $ 14,893 $ 19,269 $ 34,162 Unrealized loss on retirement plans (22,394) (2,004) (24,398) TOTAL $ (7,501) $ 17,265 $ 9,764 Balance Current Balance (Dollar amounts in thousands) 1/1/2019 Change 12/31/2019 Unrealized gains (losses) on securities available-for-sale without other than temporary impairment $ (8,446) $ 20,624 $ 12,178 Unrealized gains (losses) on securities available-for-sale with other than temporary impairment 2,341 374 2,715 Total unrealized gain (loss) on securities available-for-sale $ (6,105) $ 20,998 $ 14,893 Unrealized loss on retirement plans (17,349) (5,045) (22,394) TOTAL $ (23,454) $ 15,953 $ (7,501)
Reclassification out of Accumulated Other Comprehensive Income	Balance at December 31, 2020 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 $ 233 Net securities gains (losses) on available-for-sale (58) Income tax expense securities $ 175 Net of tax Amortization of $ (1,967) (a) retirement plan items 492 Income tax expense $ (1,475) Net of tax Total reclassifications for the period $ (1,300) Net of tax (a) Included in the computation of net periodic benefit cost which is included in salaries and benefits. (see Footnote 16 for additional details). Balance at December 31, 2019 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 $ 44 Net securities gains (losses) on available-for-sale (11) Income tax expense securities $ 33 Net of tax Amortization of $ (1,558) (a) retirement plan items 390 Income tax expense $ (1,168) Net of tax Total reclassifications for the period $ (1,135) Net of tax (a) Included in the computation of net periodic benefit cost which is included in salaries and benefits. (see Footnote 16 for additional details). Balance at December 31, 2018 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 $ 2 Net securities gains (losses) on available-for-sale — Income tax expense securities $ 2 Net of tax Amortization of $ (1,447) (a) retirement plan items 362 Income tax expense $ (1,085) Net of tax Total reclassifications for the period $ (1,083) Net of tax (a) Included in the computation of net periodic benefit cost which is included in salaries and benefits. (see Footnote 16 for additional details).

REGULATORY MATTERS_ (Tables)

REGULATORY MATTERS: (Tables)	12 Months Ended
	Dec. 31, 2020
Financial Services, 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 2020 and 2019. 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 – 2020 $ 538,440 17.40 % $ 324,849 10.500 % N/A N/A Corporation – 2019 $ 495,817 16.16 % $ 322,091 10.500 % N/A N/A First Financial Bank – 2020 507,869 17.03 % 313,075 10.500 % 298,166 10.00 % First Financial Bank – 2019 472,995 15.91 % 312,111 10.500 % 297,249 10.00 % Common equity tier I capital Corporation – 2020 $ 499,664 16.15 % $ 216,566 7.000 % N/A N/A Corporation – 2019 $ 475,874 15.51 % $ 214,728 7.000 % N/A N/A First Financial Bank – 2020 470,551 15.78 % 208,716 7.000 % 193,808 6.50 % First Financial Bank – 2019 457,649 15.40 % 208,074 7.000 % 193,212 6.50 % Tier I risk-based capital Corporation – 2020 $ 499,664 16.15 % $ 262,973 8.500 % N/A N/A Corporation – 2019 $ 475,874 15.51 % $ 260,741 8.500 % N/A N/A First Financial Bank – 2020 470,551 15.78 % 253,441 8.500 % 238,533 8.00 % First Financial Bank – 2019 457,649 15.40 % 252,661 8.500 % 237,799 8.00 % Tier I leverage capital Corporation – 2020 $ 499,664 11.24 % $ 177,781 4.00 % N/A N/A Corporation – 2019 $ 475,874 12.04 % $ 158,081 4.00 % N/A N/A First Financial Bank – 2020 470,551 10.90 % 172,728 4.00 % 215,910 5.00 % First Financial Bank – 2019 457,649 11.93 % 153,453 4.00 % 191,816 5.00 %

PARENT COMPANY CONDENSED FINA_2

PARENT COMPANY CONDENSED FINANCIAL STATEMENTS: (Tables)	12 Months Ended
	Dec. 31, 2020
Condensed Financial Information Disclosure [Abstract]
Schedule of Condensed Balance Sheet	CONDENSED BALANCE SHEETS December 31, (Dollar amounts in thousands) 2020 2019 ASSETS Cash deposits in affiliated banks $ 2,480 $ 4,394 Investments in subsidiaries 597,888 566,384 Land and headquarters building, net 4,614 4,807 Other 6,000 23 Total Assets $ 610,982 $ 575,608 LIABILITIES AND SHAREHOLDERS' EQUITY Liabilities Borrowings $ — $ 10,177 Dividends payable 7,182 7,142 Other liabilities 6,808 681 TOTAL LIABILITIES 13,990 18,000 Shareholders' Equity 596,992 557,608 TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY $ 610,982 $ 575,608
Schedule of Condensed Income Statement	CONDENSED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME Years Ended December 31, (Dollar amounts in thousands) 2020 2019 2018 Dividends from subsidiaries $ 31,069 $ 81,281 $ 13,651 Other income 1,054 720 720 Interest on borrowings (374) (142) — Other operating expenses (3,430) (4,327) (2,814) Income before income taxes and equity in undistributed earnings of subsidiaries 28,319 77,532 11,557 Income tax benefit 801 908 934 Income before equity in undistributed earnings of subsidiaries 29,120 78,440 12,491 Equity in undistributed earnings of subsidiaries 24,724 (29,568) 34,092 Net income $ 53,844 $ 48,872 $ 46,583 Comprehensive income $ 71,109 $ 64,825 $ 40,199
Schedule of Condensed Cash Flow Statement	CONDENSED STATEMENTS OF CASH FLOWS Years Ended December 31, (Dollar amounts in thousands) 2020 2019 2018 CASH FLOWS FROM OPERATING ACTIVITIES: Net Income $ 53,844 $ 48,872 $ 46,583 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 328 193 193 Equity in undistributed earnings (24,724) (29,568) (34,092) Contribution of shares to ESOP 1,471 1,251 1,087 Restricted stock compensation 820 801 745 Increase (decrease) in other liabilities 6,127 (2,150) (585) (Increase) decrease in other assets (5,977) 1,187 (900) NET CASH FROM OPERATING ACTIVITIES 31,889 20,586 13,031 CASH FLOWS FROM INVESTING ACTIVITIES: Cash received (disbursed) from acquisitions — (6,571) — NET CASH FROM INVESTING ACTIVITIES — (6,571) — CASH FLOWS FROM FINANCING ACTIVITIES: Principal payments on borrowings (10,310) — — Purchase of treasury stock (9,220) (315) (391) Dividends paid (14,273) (12,648) (12,496) NET CASH FROM FINANCING ACTIVITES (33,803) (12,963) (12,887) NET (DECREASE) INCREASE IN CASH (1,914) 1,052 144 CASH, BEGINNING OF YEAR 4,394 3,342 3,198 CASH, END OF YEAR $ 2,480 $ 4,394 $ 3,342 Supplemental disclosures of cash flow information: Cash paid during the year for: Interest $ 375 $ — $ — Income taxes $ 7,538 $ 9,595 $ 7,185

SELECTED QUARTERLY DATA (UNAUDI

SELECTED QUARTERLY DATA (UNAUDITED): (Tables)	12 Months Ended
	Dec. 31, 2020
Selected Quarterly Financial Information [Abstract]
Schedule of Quarterly Financial Information	2020 (Dollar amounts in thousands) Interest Interest Net Interest Provision Net Income Net Income March 31 $ 41,403 $ 5,053 $ 36,350 $ 2,690 $ 12,181 $ 0.89 June 30 $ 39,256 $ 3,361 $ 35,895 $ 2,965 $ 11,924 $ 0.87 September 30 $ 39,539 $ 3,008 $ 36,531 $ 4,425 $ 14,000 $ 1.02 December 31 $ 40,287 $ 2,717 $ 37,570 $ 448 $ 15,739 $ 1.15 2019 (Dollar amounts in thousands) Interest Interest Net Provision Net Income (a) Net Income March 31 $ 32,616 $ 3,190 $ 29,426 $ 1,470 $ 9,682 $ 0.79 June 30 $ 33,259 $ 3,507 $ 29,752 $ 230 $ 12,569 $ 1.02 September 30 $ 39,595 $ 5,596 $ 33,999 $ 1,500 $ 12,257 $ 0.93 December 31 $ 43,651 $ 5,176 $ 38,475 $ 1,500 $ 14,364 $ 1.06

BUSINESS AND SIGNIFICANT ACCO_3

BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES: (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)branchsubsidiary	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Property, Plant and Equipment [Line Items]
Number of investment subsidiaries (subsidiary) | subsidiary	2
Transfer to other real estate | $	$ 600	$ 500	$ 600
Repayment of deferred fees and interest in years	10 years
Expenses for deferred compensation | $	$ 111	109	98
Deferred compensation liability, current | $	$ 1,500
Payment of incentive rewards	15 years
Compensation liability | $	$ 6,800	7,600
Vesting period	3 years
Officers' compensation expense | $	$ 2,200	1,900	1,700
Deferred compensation liablity incentive plan | $	$ 1,400	1,000
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	3
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
Daviess 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 | $	$ 747,900
Service fees
Property, Plant and Equipment [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax | $	$ 1,300	$ 1,300	$ 1,300

FAIR VALUES OF FINANCIAL INST_3

FAIR VALUES OF FINANCIAL INSTRUMENTS: (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Fair value measurement
Securities available-for-sale	$ 1,020,744	$ 926,717
U.S. Government entity mortgage-backed securities
Fair value measurement
Securities available-for-sale	97,814	103,633
Mortgage-backed securities, residential
Fair value measurement
Securities available-for-sale	355,121	243,382
Mortgage-backed securities, commercial
Fair value measurement
Securities available-for-sale	18,490
Collateralized mortgage obligations
Fair value measurement
Securities available-for-sale	214,160	281,311
State and municipal obligations
Fair value measurement
Securities available-for-sale	306,131	264,434
Collateralized debt obligations
Fair value measurement
Securities available-for-sale	3,136	3,619
Level 1
Fair value measurement
Securities available-for-sale	0	0
Level 2
Fair value measurement
Securities available-for-sale	1,015,713	920,533
Derivative Assets	2,465	828
Derivative Liabilities	(2,465)	(828)
Level 2 | U.S. Government entity mortgage-backed securities
Fair value measurement
Securities available-for-sale	97,814	103,633
Level 2 | Mortgage-backed securities, residential
Fair value measurement
Securities available-for-sale	355,121	243,382
Level 2 | Mortgage-backed securities, commercial
Fair value measurement
Securities available-for-sale	18,490
Level 2 | Collateralized mortgage obligations
Fair value measurement
Securities available-for-sale	214,160	281,311
Level 2 | State and municipal obligations
Fair value measurement
Securities available-for-sale	304,236	261,869
Level 3
Fair value measurement
Securities available-for-sale	5,031	6,184
Level 3 | State and municipal obligations
Fair value measurement
Securities available-for-sale	1,895	2,565
Level 3 | Collateralized debt obligations
Fair value measurement
Securities available-for-sale	$ 3,136	$ 3,619

FAIR VALUES OF FINANCIAL INST_4

FAIR VALUES OF FINANCIAL INSTRUMENTS: (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Total realized/unrealized gains or losses
Beginning balance, January 1	$ 6,184	$ 6,393
Included in earnings	0	0
Included in other comprehensive income	(483)	498
Purchases	0	0
Settlements	(670)	(707)
Ending balance, December 31	5,031	6,184
State and municipal obligations
Total realized/unrealized gains or losses
Beginning balance, January 1	2,565	3,135
Included in earnings	0	0
Included in other comprehensive income	0
Purchases	0	0
Settlements	(670)	(570)
Ending balance, December 31	1,895	2,565
Collateralized debt obligations
Total realized/unrealized gains or losses
Beginning balance, January 1	3,619	3,258
Included in earnings	0	0
Included in other comprehensive income	(483)	498
Settlements	0	(137)
Ending balance, December 31	$ 3,136	$ 3,619

FAIR VALUES OF FINANCIAL INST_5

FAIR VALUES OF FINANCIAL INSTRUMENTS: (Details 2) $ in Thousands	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
State and municipal obligations | Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 1,895	$ 2,565
Other Real Estate | Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	1,012	3,625
Impaired Loans | Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value	$ 6,581	$ 100
Measurement Input, Default Rate [Member] | State And Municipal Obligations
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range of Inputs (percent)	0	0
Measurement Input, Discount Rate [Member] | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range of Inputs (percent)	0
Measurement Input, Discount Rate [Member] | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range of Inputs (percent)	0.50
Measurement Input, Discount Rate [Member] | State and municipal obligations | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range of Inputs (percent)	0.0341	0.0287
Measurement Input, Discount Rate [Member] | State and municipal obligations | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range of Inputs (percent)	0.0444	0.0444
Measurement Input, Discount Rate [Member] | Other Real Estate | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range of Inputs (percent)	0.0500	0.0500
Measurement Input, Discount Rate [Member] | Other Real Estate | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range of Inputs (percent)	0.2000	0.2000
Measurement Input, Discount Rate [Member] | Impaired Loans | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range of Inputs (percent)	0	0
Measurement Input, Discount Rate [Member] | Impaired Loans | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range of Inputs (percent)	0.5000	0.5000

FAIR VALUES OF FINANCIAL INST_6

FAIR VALUES OF FINANCIAL INSTRUMENTS: (Details 3) $ in Thousands	Dec. 31, 2019USD ($)
Loans identified as impaired by class of loans
Carrying Value	$ 148
Allowance for Loan Losses Allocated	48
Fair value	100
Commercial & Industrial
Loans identified as impaired by class of loans
Carrying Value	148
Allowance for Loan Losses Allocated	48
Fair value	100
Farmland
Loans identified as impaired by class of loans
Carrying Value	0
Allowance for Loan Losses Allocated	0
Fair value	0
Non Farm, Non Residential
Loans identified as impaired by class of loans
Carrying Value	0
Allowance for Loan Losses Allocated	0
Fair value	0
Agriculture
Loans identified as impaired by class of loans
Carrying Value	0
Allowance for Loan Losses Allocated	0
Fair value	0
All Other Commercial
Loans identified as impaired by class of loans
Carrying Value	0
Allowance for Loan Losses Allocated	0
Fair value	0
First Liens
Loans identified as impaired by class of loans
Carrying Value	0
Allowance for Loan Losses Allocated	0
Fair value	0
Home Equity
Loans identified as impaired by class of loans
Carrying Value	0
Allowance for Loan Losses Allocated	0
Fair value	0
Junior Liens
Loans identified as impaired by class of loans
Carrying Value	0
Allowance for Loan Losses Allocated	0
Fair value	0
Multifamily
Loans identified as impaired by class of loans
Carrying Value	0
Allowance for Loan Losses Allocated	0
Fair value	0
All Other Residential
Loans identified as impaired by class of loans
Carrying Value	0
Allowance for Loan Losses Allocated	0
Fair value	0
Motor Vehicle
Loans identified as impaired by class of loans
Carrying Value	0
Allowance for Loan Losses Allocated	0
Fair value	0
All Other Consumer
Loans identified as impaired by class of loans
Carrying Value	0
Allowance for Loan Losses Allocated	0
Fair value	$ 0

FAIR VALUES OF FINANCIAL INST_7

FAIR VALUES OF FINANCIAL INSTRUMENTS: (Details 4) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Carrying amount and estimated fair value of financial instruments
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held	$ 2,974	$ 2,974	$ 2,974	$ 7,132
Securities available-for-sale	1,020,744	926,717
Restricted stock	14,812	15,394
Accrued interest receivable	16,957	18,523
Deposits	(3,755,945)	(3,275,357)
Level 1
Carrying amount and estimated fair value of financial instruments
Cash and due from banks	25,645	26,275
Securities available-for-sale		0
Level 2
Carrying amount and estimated fair value of financial instruments
Cash and due from banks	631,825	101,151
Securities available-for-sale	1,015,713	920,533
Accrued interest receivable	3,521	3,583
Deposits	(3,763,358)	(3,278,099)
Short-term borrowings	(116,061)	(80,119)
Accrued interest payable	(1,033)	(1,739)
Level 3
Carrying amount and estimated fair value of financial instruments
Securities available-for-sale	5,031	6,184
Loans, net	2,560,683	2,648,692
Accrued interest receivable	13,436	14,940
Reported Value Measurement [Member]
Carrying amount and estimated fair value of financial instruments
Cash and due from banks	657,470	127,426
Securities available-for-sale	1,020,744	926,717
Restricted stock	14,812	15,394
Loans, net	2,563,242	2,636,447
Accrued interest receivable	16,957	18,523
Deposits	(3,755,945)	(3,275,357)
Short-term borrowings	(116,061)	(80,119)
Accrued interest payable	(1,033)	(1,739)
Estimate of Fair Value Measurement [Member]
Carrying amount and estimated fair value of financial instruments
Cash and due from banks	657,470	127,426
Securities available-for-sale	1,020,744	926,717
Loans, net	2,560,683	2,648,692
Accrued interest receivable	16,957	18,523
Deposits	(3,763,358)	(3,278,099)
Short-term borrowings	(116,061)	(80,119)
Accrued interest payable	$ (1,033)	$ (1,739)

FAIR VALUES OF FINANCIAL INST_8

FAIR VALUES OF FINANCIAL INSTRUMENTS: (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Carrying amount and estimated fair value of financial instruments
Gain On Sale Of Securities Net	$ 290	$ 55
Valuation allowance for impaired loans		48
Other Real Estate Commercial loan | Level 3
Carrying amount and estimated fair value of financial instruments
Fair Value	846	3,500
Other Real Estate Residential Loan | Level 3
Carrying amount and estimated fair value of financial instruments
Fair Value	167	142
Impaired Loans | Level 3
Carrying amount and estimated fair value of financial instruments
Fair Value	6,581	100
Other Real Estate | Level 3
Carrying amount and estimated fair value of financial instruments
Fair Value	1,012	3,625
Assets fair value adjustment increase (decrease)	$ 0	$ (64)
Measurement Input, Discount Rate [Member] | Minimum
Carrying amount and estimated fair value of financial instruments
Fair Value Inputs, Discount Rate	0
Measurement Input, Discount Rate [Member] | Minimum | Impaired Loans
Carrying amount and estimated fair value of financial instruments
Fair Value Inputs, Discount Rate	0	0
Measurement Input, Discount Rate [Member] | Minimum | Other Real Estate
Carrying amount and estimated fair value of financial instruments
Fair Value Inputs, Discount Rate	0.0500	0.0500
Measurement Input, Discount Rate [Member] | Maximum
Carrying amount and estimated fair value of financial instruments
Fair Value Inputs, Discount Rate	0.50
Measurement Input, Discount Rate [Member] | Maximum | Impaired Loans
Carrying amount and estimated fair value of financial instruments
Fair Value Inputs, Discount Rate	0.5000	0.5000
Measurement Input, Discount Rate [Member] | Maximum | Other Real Estate
Carrying amount and estimated fair value of financial instruments
Fair Value Inputs, Discount Rate	0.2000	0.2000

RESTRICTIONS ON CASH AND DUE _2

RESTRICTIONS ON CASH AND DUE FROM BANKS: (Details Textual) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Restrictions On Cash and Due From Banks Disclosure [Abstract]
Cash Reserve Balance	$ 0	$ 16.9

SECURITIES_ (Details)

SECURITIES: (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Amortized cost and fair value of investments classified as available for sale
TOTAL	$ 977,830	$ 907,575
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	43,354	20,976
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	440	1,834
Securities available-for-sale	1,020,744	926,717
U.S. Government entity mortgage-backed securities
Amortized cost and fair value of investments classified as available for sale
TOTAL	92,710	102,490
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	5,105	1,293
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	1	150
Securities available-for-sale	97,814	103,633
Mortgage-backed securities, residential
Amortized cost and fair value of investments classified as available for sale
TOTAL	346,606	240,753
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	8,794	2,979
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	279	350
Securities available-for-sale	355,121	243,382
Mortgage-backed securities, commercial
Amortized cost and fair value of investments classified as available for sale
TOTAL	17,931
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	559
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0
Securities available-for-sale	18,490
Collateralized mortgage obligations
Amortized cost and fair value of investments classified as available for sale
TOTAL	209,556	280,797
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	4,761	1,735
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	157	1,221
Securities available-for-sale	214,160	281,311
State and municipal obligations
Amortized cost and fair value of investments classified as available for sale
TOTAL	285,837	253,277
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	20,294	11,265
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	108
Securities available-for-sale	306,131	264,434
Collateralized debt obligations
Amortized cost and fair value of investments classified as available for sale
TOTAL	0	0
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	3,136	3,619
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	0
Securities available-for-sale	$ 3,136	$ 3,619

SECURITIES_ (Details 1)

SECURITIES: (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities	$ 36,696	$ 11,210	$ 2,418
Gross gains	290	55	5
Gross losses	$ (57)	$ (11)	$ (3)

SECURITIES_ (Details 2)

SECURITIES: (Details 2) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Amortized Cost
Due in one year or less	$ 13,168
Due after one but within five years	47,560
Due after five but within ten years	64,596
Due after ten years	278,413
Total of securities having specified maturity period	403,737
Mortgage-backed securities and collateralized mortgage obligations	574,093
TOTAL	977,830	$ 907,575
Fair Value
Due in one year or less	13,304
Due after one but within five years	49,207
Due after five but within ten years	68,349
Due after ten years	302,113
Total of securities having specified maturities period	432,973
Mortgage-backed securities and collateralized mortgage obligations	587,771
TOTAL	$ 1,020,744	$ 926,717

SECURITIES_ (Details 3)

SECURITIES: (Details 3) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Less Than 12 Months
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 90,241	$ 131,633
Unrealized Losses	(390)	(773)
More Than 12 Months
Fair Value	4,711	80,966
Unrealized Losses	(50)	(1,061)
Total
Fair Value	94,952	212,599
Unrealized Losses	(440)	(1,834)
U.S. Government entity mortgage-backed securities
Less Than 12 Months
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	0
Unrealized Losses	0
More Than 12 Months
Fair Value	944
Unrealized Losses	(1)
Total
Fair Value	944
Unrealized Losses	(1)
Mortgage-backed securities, residential
Less Than 12 Months
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	76,962	29,183
Unrealized Losses	(279)	(150)
More Than 12 Months
Fair Value	0	0
Unrealized Losses	0	0
Total
Fair Value	76,962	29,183
Unrealized Losses	(279)	(150)
Mortgage-backed securities, commercial
Less Than 12 Months
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		55,665
Unrealized Losses		(243)
More Than 12 Months
Fair Value		18,724
Unrealized Losses		(107)
Total
Fair Value		74,389
Unrealized Losses		(350)
Collateralized mortgage obligations
Less Than 12 Months
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	12,282	33,398
Unrealized Losses	(108)	(314)
More Than 12 Months
Fair Value	3,767	61,781
Unrealized Losses	(49)	(907)
Total
Fair Value	16,049	95,179
Unrealized Losses	(157)	(1,221)
State and municipal obligations
Less Than 12 Months
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	747	8,996
Unrealized Losses	(3)	(61)
More Than 12 Months
Fair Value	0	461
Unrealized Losses	0	(47)
Total
Fair Value	747	9,457
Unrealized Losses	$ (3)	$ (108)

SECURITIES_ (Details 4)

SECURITIES: (Details 4) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Rollforward of the credit losses recognized in earnings
Beginning balance, January 1,	$ 2,974	$ 2,974	$ 7,132
Reductions for securities called during the period	0	0	(4,158)
Ending balance, December 31,	$ 2,974	$ 2,974	$ 2,974

SECURITIES_ (Details Textual)

SECURITIES: (Details Textual) - USD ($)	2 Months Ended	12 Months Ended
	Mar. 04, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Debt Securities, Available-for-sale [Line Items]
Securities pledged as collateral		$ 744,500,000	$ 596,200,000
Gain on sale of investments		290,000	55,000
Loss on sale of investments		$ 57,000	3,000
Number of investment securities with an amortized cost greater than fair value (investments)		19
Cumulative OTTI charges		$ 2,974,000	2,974,000	$ 2,974,000	$ 7,132,000
Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale	$ 3,100,000	260,631,000	181,763,000	$ 143,157,000
Amortized Cost		977,830,000	907,575,000
Securities available-for-sale		1,020,744,000	926,717,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss		440,000	$ 1,834,000
Other Than Temporarily Impaired Cdo [Member]
Debt Securities, Available-for-sale [Line Items]
Contractual balance		3,700,000
Reduced balance		3,100,000
Interest payment received		750,000
Cumulative OTTI charges		3,000,000
Other comprehensive income net		$ 3,100,000

LOANS_ (Details)

LOANS: (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 2,606,113	$ 2,652,530
Deferred costs, net	4,181	3,860
Allowance for credit losses	(47,052)	(19,943)	$ (20,436)	$ (19,909)
TOTAL	2,563,242	2,636,447
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,521,711	1,584,447
Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	604,652	682,077
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 479,750	$ 386,006

LOANS_ (Details Textual)

LOANS: (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable Held-for-sale, Net, Not Part of Disposal Group	$ 7.1	$ 5.8
Loans serviced for others, not reported as assets	490.4	477
Escrow deposit	3	3.1
Fair value, based on valuations	$ 2.4	$ 2.7
Assumptions used to estimate fair value, discount rate (percent)	12.50%	12.50%
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	$ 89.5
Advances	22.8
Repayments	54.8
Ending Balance	$ 57.5	$ 89.5
Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Assumptions used to estimate fair value, prepayment speed (percent)	403.00%	263.00%
Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Assumptions used to estimate fair value, prepayment speed (percent)	239.00%	118.00%

LOANS_ (Details 1)

LOANS: (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Servicing Rights
Beginning of year	$ 1,435	$ 1,431	$ 1,434
Additions	956	579	513
Amortized to expense	(790)	(575)	(516)
End of year	$ 1,601	$ 1,435	$ 1,431

ACQUISITIONS AND FDIC INDEMNI_3

ACQUISITIONS AND FDIC INDEMNIFICATION ASSET: (Details Textual) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Deposits	$ 3,755,945				$ 3,275,357				$ 3,755,945	$ 3,275,357
Goodwill	78,592				78,592				78,592	78,592
Assets	4,557,544				4,023,250				4,557,544	4,023,250
Net Income (Loss) Attributable to Parent	$ 15,739	$ 14,000	$ 11,924	$ 12,181	$ 14,364	$ 12,257	$ 12,569	$ 9,682	$ 53,844	$ 48,872	$ 46,583

ACQUISITIONS AND FDIC INDEMNI_4

ACQUISITIONS AND FDIC INDEMNIFICATION ASSET: (Details 1) $ in Thousands	Dec. 31, 2019USD ($)
Business Acquisition [Line Items]
Beginning balance	$ 1,530
Loans added, as initially reported	8,870
Disposals	(1,274)
Total Covered Assets	7,269
Commercial
Business Acquisition [Line Items]
Beginning balance	1,530
Loans added, as initially reported	8,610
Disposals	(1,274)
Total Covered Assets	7,269
Consumer
Business Acquisition [Line Items]
Beginning balance	0
Loans added, as initially reported	260
Disposals	0
Total Covered Assets	$ 0

ALLOWANCE FOR LOAN LOSSES_ (Det

ALLOWANCE FOR LOAN LOSSES: (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 19,943	$ 20,436	$ 19,909
Provision for loan losses	10,528	4,700	5,768
Loans charged -off	(8,396)	(10,673)	(8,831)
Recoveries	4,917	5,480	3,590
Ending Balance	47,052	19,943	20,436
Commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	8,945	9,848	10,281
Provision for loan losses	(1,622)	621	83
Loans charged -off	(1,097)	(2,616)	(1,122)
Recoveries	856	1,092	606
Ending Balance	16,901	8,945	9,848
Residential
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	1,302	1,313	1,455
Provision for loan losses	8,612	(321)	60
Loans charged -off	(944)	(1,050)	(841)
Recoveries	657	1,360	639
Ending Balance	19,142	1,302	1,313
Consumer
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	8,304	7,481	6,709
Provision for loan losses	3,538	4,802	5,295
Loans charged -off	(6,355)	(7,007)	(6,868)
Recoveries	3,404	3,028	2,345
Ending Balance	11,009	8,304	7,481
Unallocated
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	1,392	1,794	1,464
Provision for loan losses		(402)	330
Loans charged -off		0	0
Recoveries		0	0
Ending Balance		1,392	$ 1,794
Commercial Real Estate Portfolio Segment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 10,337
Ending Balance		$ 10,337

ALLOWANCE FOR LOAN LOSSES_ (D_2

ALLOWANCE FOR LOAN LOSSES: (Details 1) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Ending Balance Attributable to Loans
Individually evaluated for impairment		$ 48
Collectively evaluated for impairment		19,895
BALANCE AT END OF YEAR	$ 47,052	19,943	$ 20,436	$ 19,909
Financing Receivable [Abstract]
Individually evaluated for impairment		7,113
Collectively evaluated for impairment		2,651,893
Acquired with deteriorated credit quality	2,563,242	2,636,447
BALANCE AT END OF YEAR	2,618,553	2,666,442
Commercial
Ending Balance Attributable to Loans
Individually evaluated for impairment		48
Collectively evaluated for impairment		8,897
BALANCE AT END OF YEAR	16,901	8,945	9,848	10,281
Financing Receivable [Abstract]
Individually evaluated for impairment		3,161
Collectively evaluated for impairment		1,584,169
BALANCE AT END OF YEAR		1,594,766
Residential
Ending Balance Attributable to Loans
Individually evaluated for impairment		0
Collectively evaluated for impairment		1,302
BALANCE AT END OF YEAR	19,142	1,302	1,313	1,455
Financing Receivable [Abstract]
Individually evaluated for impairment		3,952
Collectively evaluated for impairment		680,069
BALANCE AT END OF YEAR		684,021
Consumer
Ending Balance Attributable to Loans
Individually evaluated for impairment		0
Collectively evaluated for impairment		8,304
BALANCE AT END OF YEAR	$ 11,009	8,304	7,481	6,709
Financing Receivable [Abstract]
Individually evaluated for impairment		0
Collectively evaluated for impairment		387,655
BALANCE AT END OF YEAR		387,655
Unallocated
Ending Balance Attributable to Loans
Individually evaluated for impairment		0
Collectively evaluated for impairment		1,392
BALANCE AT END OF YEAR		1,392	$ 1,794	$ 1,464
Acquired with deteriorated credit quality
Ending Balance Attributable to Loans
Acquired with deteriorated credit quality		0
Financing Receivable [Abstract]
Acquired with deteriorated credit quality		7,436
Acquired with deteriorated credit quality | Commercial
Ending Balance Attributable to Loans
Acquired with deteriorated credit quality		0
Financing Receivable [Abstract]
Acquired with deteriorated credit quality		7,436
Acquired with deteriorated credit quality | Residential
Ending Balance Attributable to Loans
Acquired with deteriorated credit quality		0
Financing Receivable [Abstract]
Acquired with deteriorated credit quality		0
Acquired with deteriorated credit quality | Consumer
Ending Balance Attributable to Loans
Acquired with deteriorated credit quality		0
Financing Receivable [Abstract]
Acquired with deteriorated credit quality		0
Acquired with deteriorated credit quality | Unallocated
Ending Balance Attributable to Loans
Acquired with deteriorated credit quality		$ 0

ALLOWANCE FOR LOAN LOSSES_ (D_3

ALLOWANCE FOR LOAN LOSSES: (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Unpaid principal balance
With no related allowance recorded	$ 0
TOTAL	7,643
Recorded Investment
With no related allowance recorded:	0
With an allowance recorded:	148
TOTAL	7,113
Allowance for loan losses
Allowance for Loan Losses Allocated	48
Average recorded investment
With no related allowance recorded:	0	$ 23
TOTAL	8,693	11,118
Interest Income Recognized
With no related allowance recorded:	0	0
TOTAL	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
TOTAL	0	0
Commercial & Industrial
Unpaid principal balance
With no related allowance recorded	1,519
With an allowance recorded	148
Recorded Investment
With no related allowance recorded:	989
With an allowance recorded:	148
Allowance for loan losses
Allowance for Loan Losses Allocated	48
Average recorded investment
With no related allowance recorded:	848	698
With an allowance recorded:	1,108	688
Interest Income Recognized
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
With no related allowance recorded:	0	0
Farmland
Unpaid principal balance
With no related allowance recorded	1,997
With an allowance recorded	0
Recorded Investment
With no related allowance recorded:	1,997
With an allowance recorded:	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0
Average recorded investment
With no related allowance recorded:	1,999	1,579
With an allowance recorded:	84	1,691
Interest Income Recognized
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
With no related allowance recorded:	0	0
Non Farm, Non Residential
Unpaid principal balance
With no related allowance recorded	0
With an allowance recorded	0
Recorded Investment
With no related allowance recorded:	0
With an allowance recorded:	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0
Average recorded investment
With no related allowance recorded:	0	1,443
With an allowance recorded:	0	0
Interest Income Recognized
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
With no related allowance recorded:	0	0
Agriculture
Unpaid principal balance
With no related allowance recorded	0
With an allowance recorded	0
Recorded Investment
With no related allowance recorded:	0
With an allowance recorded:	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0
Average recorded investment
With no related allowance recorded:	0	49
With an allowance recorded:	138	316
Interest Income Recognized
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
With no related allowance recorded:	0	0
All Other Commercial
Unpaid principal balance
With no related allowance recorded	27
With an allowance recorded	0
Recorded Investment
With no related allowance recorded:	27
With an allowance recorded:	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0
Average recorded investment
With no related allowance recorded:	461	1,172
With an allowance recorded:	0	0
Interest Income Recognized
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
With no related allowance recorded:	0	0
First Liens
Unpaid principal balance
With no related allowance recorded	3,952
With an allowance recorded	0
Recorded Investment
With no related allowance recorded:	3,952
With an allowance recorded:	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0
Average recorded investment
With no related allowance recorded:	4,055	3,371
With an allowance recorded:	0	88
Interest Income Recognized
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
With no related allowance recorded:	0	0
Home Equity
Unpaid principal balance
With no related allowance recorded	0
With an allowance recorded	0
Recorded Investment
With no related allowance recorded:	0
With an allowance recorded:	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0
Average recorded investment
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Interest Income Recognized
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
With no related allowance recorded:	0	0
Junior Liens
Unpaid principal balance
With an allowance recorded	0
Recorded Investment
With an allowance recorded:	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0
Average recorded investment
With an allowance recorded:	0	0
Interest Income Recognized
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With no related allowance recorded:	0	0
Multifamily
Unpaid principal balance
With no related allowance recorded	0
With an allowance recorded	0
Recorded Investment
With no related allowance recorded:	0
With an allowance recorded:	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0
Average recorded investment
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Interest Income Recognized
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
With no related allowance recorded:	0	0
All Other Residential
Unpaid principal balance
With no related allowance recorded	0
With an allowance recorded	0
Recorded Investment
With no related allowance recorded:	0
With an allowance recorded:	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0
Average recorded investment
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Interest Income Recognized
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
With no related allowance recorded:	0	0
Motor Vehicle
Unpaid principal balance
With no related allowance recorded	0
With an allowance recorded	0
Recorded Investment
With no related allowance recorded:	0
With an allowance recorded:	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0
Average recorded investment
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Interest Income Recognized
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
With no related allowance recorded:	0	0
All Other Consumer
Unpaid principal balance
With no related allowance recorded	0
With an allowance recorded	0
Recorded Investment
With no related allowance recorded:	0
With an allowance recorded:	0
Allowance for loan losses
Allowance for Loan Losses Allocated	0
Average recorded investment
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Interest Income Recognized
With no related allowance recorded:	0	0
With an allowance recorded:	0	0
Cash Basis Interest Income Recognized
With an allowance recorded:	0	0
With no related allowance recorded:	$ 0	$ 0

ALLOWANCE FOR LOAN LOSSES_ (D_4

ALLOWANCE FOR LOAN LOSSES: (Details 3) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable, Troubled Debt Restructuring	$ 4,206	$ 4,194	$ 4,806	$ 7,034
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	2,458	1,662
Financing Receivable, Troubled Debt Restructuring		3,340
Financing Receivable, Modifications, Nonaccrual		875
Non-accrual	15,367	9,546
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	0	0
Financing Receivable, Troubled Debt Restructuring		0
Financing Receivable, Modifications, Nonaccrual		11
Non-accrual	4,838	2,191
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	0	5
Financing Receivable, Troubled Debt Restructuring		0
Financing Receivable, Modifications, Nonaccrual		0
Non-accrual	195	2,410
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, Troubled Debt Restructuring		0
Financing Receivable, Modifications, Nonaccrual		0
Non-accrual	3,729	441
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, Troubled Debt Restructuring		0
Financing Receivable, Modifications, Nonaccrual		0
Non-accrual	409	485
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, Troubled Debt Restructuring		0
Financing Receivable, Modifications, Nonaccrual		0
Non-accrual	533	114
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	1,746	625
Financing Receivable, Troubled Debt Restructuring		3,007
Financing Receivable, Modifications, Nonaccrual		396
Non-accrual	2,604	2,876
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	88	12
Financing Receivable, Troubled Debt Restructuring		0
Financing Receivable, Modifications, Nonaccrual		0
Non-accrual	30	61
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	252	51
Financing Receivable, Troubled Debt Restructuring		94
Financing Receivable, Modifications, Nonaccrual		9
Non-accrual	206	175
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, Troubled Debt Restructuring		0
Financing Receivable, Modifications, Nonaccrual		0
Non-accrual	1,380	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	738
Financing Receivable, Troubled Debt Restructuring		0
Financing Receivable, Modifications, Nonaccrual		0
Non-accrual	135	203
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	372	227
Financing Receivable, Troubled Debt Restructuring		0
Financing Receivable, Modifications, Nonaccrual		15
Non-accrual	754	138
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	4
Financing Receivable, Troubled Debt Restructuring		239
Financing Receivable, Modifications, Nonaccrual		444
Non-accrual	$ 554	$ 452

ALLOWANCE FOR LOAN LOSSES_ ALLO

ALLOWANCE FOR LOAN LOSSES: ALLOWANCE FOR LOAN LOSSES: (Details 4) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Impaired, Troubled Debt Restructuring [Roll Forward]
January 1,	$ 4,194	$ 4,806	$ 7,034
Added	996	570	1,279
Charged Off	(164)	(105)	(153)
Payments	(820)	(1,077)	(3,354)
December 31,	4,206	4,194	4,806
Commercial
Financing Receivable, Impaired, Troubled Debt Restructuring [Roll Forward]
January 1,	11	145	2,709
Added	0	0	0
Charged Off	0	0	0
Payments	(11)	(134)	(2,564)
December 31,	0	11	145
Residential
Financing Receivable, Impaired, Troubled Debt Restructuring [Roll Forward]
January 1,	3,485	4,043	3,611
Added	692	195	984
Charged Off	(6)	(24)	(16)
Payments	(582)	(729)	(536)
December 31,	3,589	3,485	4,043
Consumer
Financing Receivable, Impaired, Troubled Debt Restructuring [Roll Forward]
January 1,	698	618	714
Added	304	375	295
Charged Off	(158)	(81)	(137)
Payments	(227)	(214)	(254)
December 31,	$ 617	$ 698	$ 618

ALLOWANCE FOR LOAN LOSSES_ (D_5

ALLOWANCE FOR LOAN LOSSES: (Details 5) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	$ 25,726	$ 31,590
Current	2,592,827	2,634,852
BALANCE AT END OF YEAR	2,618,553	2,666,442
Commercial & Industrial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	4,795	5,030
Current	603,777	594,925
BALANCE AT END OF YEAR	608,572	599,955
Farmland
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	113	2,221
Current	118,528	137,730
BALANCE AT END OF YEAR	118,641	139,951
Non Farm, Non Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	426	3,853
Current	350,681	398,854
BALANCE AT END OF YEAR	351,107	402,707
Agriculture
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	333	405
Current	146,147	162,794
BALANCE AT END OF YEAR	146,480	163,199
All Other Commercial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	24	109
Current	305,612	288,845
BALANCE AT END OF YEAR	305,636	288,954
First Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	9,737	9,202
Current	314,730	375,924
BALANCE AT END OF YEAR	324,467	385,126
Home Equity
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	393	221
Current	60,362	70,813
BALANCE AT END OF YEAR	60,755	71,034
Junior Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	830	564
Current	53,346	54,533
BALANCE AT END OF YEAR	54,176	55,097
Multifamily
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	0
Current	151,042	148,282
BALANCE AT END OF YEAR	151,042	148,282
All Other Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	50	1,972
Current	15,918	22,510
BALANCE AT END OF YEAR	15,968	24,482
Motor Vehicle
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	8,829	7,741
Current	441,283	347,950
BALANCE AT END OF YEAR	450,112	355,691
All Other Consumer
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	196	272
Current	31,401	31,692
BALANCE AT END OF YEAR	31,597	31,964
30 to 59 Days Past Due
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	14,216	21,801
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	685	2,885
30 to 59 Days Past Due | Farmland
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	22	132
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	155	3,749
30 to 59 Days Past Due | Agriculture
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	28	277
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	0
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	5,506	6,452
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	260	124
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	421	384
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	0	1,082
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	6,975	6,488
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	164	228
60 to 89 Days Past Due
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	4,102	3,421
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	746	766
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	0
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	104
60 to 89 Days Past Due | Agriculture
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	30	128
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	1,866	1,292
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	29	63
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	68	43
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	50	0
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	1,294	983
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	19	42
Greater than 90 Days Past Due
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	7,408	6,368
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	3,364	1,379
Greater than 90 Days Past Due | Farmland
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	91	2,089
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	271	0
Greater than 90 Days Past Due | Agriculture
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	275	0
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	24	109
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	2,365	1,458
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	104	34
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	341	137
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	0	890
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	560	270
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	$ 13	$ 2

ALLOWANCE FOR LOAN LOSSES_ (D_6

ALLOWANCE FOR LOAN LOSSES: (Details 6) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Analysis of risk category of loans by class of loans
Total loans	$ 2,606,113	$ 2,652,530
Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans		597,709
Farmland
Analysis of risk category of loans by class of loans
Total loans		137,275
Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans		401,775
Agriculture
Analysis of risk category of loans by class of loans
Total loans		160,126
All Other Commercial
Analysis of risk category of loans by class of loans
Total loans		287,562
First Liens
Analysis of risk category of loans by class of loans
Total loans		383,912
Home Equity
Analysis of risk category of loans by class of loans
Total loans		70,842
Junior Liens
Analysis of risk category of loans by class of loans
Total loans		54,974
Multifamily
Analysis of risk category of loans by class of loans
Total loans		147,943
All Other Residential
Analysis of risk category of loans by class of loans
Total loans		24,406
Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans		354,198
All Other Consumer
Analysis of risk category of loans by class of loans
Total loans		31,808
Pass
Analysis of risk category of loans by class of loans
Total loans		1,821,763
Pass | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans		549,341
Pass | Farmland
Analysis of risk category of loans by class of loans
Total loans		119,858
Pass | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans		381,404
Pass | Agriculture
Analysis of risk category of loans by class of loans
Total loans		127,144
Pass | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans		283,266
Pass | First Liens
Analysis of risk category of loans by class of loans
Total loans		174,338
Pass | Home Equity
Analysis of risk category of loans by class of loans
Total loans		18,417
Pass | Junior Liens
Analysis of risk category of loans by class of loans
Total loans		2,839
Pass | Multifamily
Analysis of risk category of loans by class of loans
Total loans		146,497
Pass | All Other Residential
Analysis of risk category of loans by class of loans
Total loans		12,624
Pass | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans		2,880
Pass | All Other Consumer
Analysis of risk category of loans by class of loans
Total loans		3,155
Special Mention
Analysis of risk category of loans by class of loans
Total loans		41,100
Special Mention | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans		19,253
Special Mention | Farmland
Analysis of risk category of loans by class of loans
Total loans		8,673
Special Mention | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans		4,424
Special Mention | Agriculture
Analysis of risk category of loans by class of loans
Total loans		4,507
Special Mention | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans		3,141
Special Mention | First Liens
Analysis of risk category of loans by class of loans
Total loans		926
Special Mention | Home Equity
Analysis of risk category of loans by class of loans
Total loans		0
Special Mention | Junior Liens
Analysis of risk category of loans by class of loans
Total loans		64
Special Mention | Multifamily
Analysis of risk category of loans by class of loans
Total loans		112
Special Mention | All Other Residential
Analysis of risk category of loans by class of loans
Total loans		0
Special Mention | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans		0
Special Mention | All Other Consumer
Analysis of risk category of loans by class of loans
Total loans		0
Substandard
Analysis of risk category of loans by class of loans
Total loans		82,662
Substandard | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans		26,349
Substandard | Farmland
Analysis of risk category of loans by class of loans
Total loans		8,644
Substandard | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans		12,269
Substandard | Agriculture
Analysis of risk category of loans by class of loans
Total loans		27,490
Substandard | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans		1,120
Substandard | First Liens
Analysis of risk category of loans by class of loans
Total loans		4,382
Substandard | Home Equity
Analysis of risk category of loans by class of loans
Total loans		134
Substandard | Junior Liens
Analysis of risk category of loans by class of loans
Total loans		178
Substandard | Multifamily
Analysis of risk category of loans by class of loans
Total loans		1,315
Substandard | All Other Residential
Analysis of risk category of loans by class of loans
Total loans		205
Substandard | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans		538
Substandard | All Other Consumer
Analysis of risk category of loans by class of loans
Total loans		38
Doubtful
Analysis of risk category of loans by class of loans
Total loans		92
Doubtful | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans		5
Doubtful | Farmland
Analysis of risk category of loans by class of loans
Total loans		0
Doubtful | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans		0
Doubtful | Agriculture
Analysis of risk category of loans by class of loans
Total loans		0
Doubtful | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans		0
Doubtful | First Liens
Analysis of risk category of loans by class of loans
Total loans		0
Doubtful | Home Equity
Analysis of risk category of loans by class of loans
Total loans		11
Doubtful | Junior Liens
Analysis of risk category of loans by class of loans
Total loans		76
Doubtful | Multifamily
Analysis of risk category of loans by class of loans
Total loans		0
Doubtful | All Other Residential
Analysis of risk category of loans by class of loans
Total loans		0
Doubtful | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans		0
Doubtful | All Other Consumer
Analysis of risk category of loans by class of loans
Total loans		0
Not Rated
Analysis of risk category of loans by class of loans
Total loans		706,913
Not Rated | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans		2,761
Not Rated | Farmland
Analysis of risk category of loans by class of loans
Total loans		100
Not Rated | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans		3,678
Not Rated | Agriculture
Analysis of risk category of loans by class of loans
Total loans		985
Not Rated | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans		35
Not Rated | First Liens
Analysis of risk category of loans by class of loans
Total loans		204,266
Not Rated | Home Equity
Analysis of risk category of loans by class of loans
Total loans		52,280
Not Rated | Junior Liens
Analysis of risk category of loans by class of loans
Total loans		51,817
Not Rated | Multifamily
Analysis of risk category of loans by class of loans
Total loans		19
Not Rated | All Other Residential
Analysis of risk category of loans by class of loans
Total loans		11,577
Not Rated | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans		350,780
Not Rated | All Other Consumer
Analysis of risk category of loans by class of loans
Total loans		$ 28,615

ALLOWANCE FOR LOAN LOSSES_ (D_7

ALLOWANCE FOR LOAN LOSSES: (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Allowance for Credit Losses:
Impaired loans		$ 7,113
Allowance for Loan Losses Allocated		$ 48
Minimum outstanding balance of non-homogeneous loans to be individually evaluated as to credit risk	$ 100
Minimum
Allowance for Credit Losses:
Loan modification, reduction of stated interest rate	12 months
Loan modification, extension of maturity date	12 months
Maximum
Allowance for Credit 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, 2020	Dec. 31, 2019
Property, Plant and Equipment, Gross [Abstract]
Land	$ 17,574	$ 17,574
Building and leasehold improvements	66,658	66,592
Furniture and Fixtures, Gross	42,167	39,715
Property Plant And Equipment Gross	126,399	123,881
Less accumulated depreciation	(64,336)	(61,305)
TOTAL	$ 62,063	$ 62,576

PREMISES AND EQUIPMENT_ (Deta_2

PREMISES AND EQUIPMENT: (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment, Gross [Abstract]
Depreciation	$ 4,400	$ 3,900	$ 3,700
Rent expense	$ 1,100	$ 1,100	$ 1,000

PREMISES AND EQUIPMENT_ (Deta_3

PREMISES AND EQUIPMENT: (Details 1) $ in Thousands	Dec. 31, 2020USD ($)
Property, Plant and Equipment, Gross [Abstract]
2014	$ 851
2015	737
2016	637
2017	369
2018	237
Thereafter	795
Total future minimum payments due	$ 3,626

GOODWILL AND INTANGIBLE ASSET_3

GOODWILL AND INTANGIBLE ASSETS: (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Goodwill Sold [Line Items]
Amortization of intangible assets	$ 1,700	$ 923	$ 433

GOODWILL AND INTANGIBLE ASSET_4

GOODWILL AND INTANGIBLE ASSETS: (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Amount	$ 21,205	$ 21,205
Accumulated Amortization	12,233	10,562
Core deposit intangible
Finite-Lived Intangible Assets [Line Items]
Gross Amount	21,205	21,205
Accumulated Amortization	$ 12,233	$ 10,562

GOODWILL AND INTANGIBLE ASSET_5

GOODWILL AND INTANGIBLE ASSETS: (Details 1) $ in Thousands	Dec. 31, 2020USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2014	$ 1,615
2015	1,390
2016	1,127
2017	838
2018	$ 711

DEPOSITS_ (Details)

DEPOSITS: (Details) $ in Thousands	Dec. 31, 2020USD ($)
Maturities of Time Deposits [Abstract]
2014	$ 358,165
2015	97,159
2016	70,677
2017	28,169
2018	$ 15,162

SHORT-TERM BORROWINGS_ (Details

SHORT-TERM BORROWINGS: (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Short Term Borrowings Disclosure [Abstract]
Federal funds purchased	$ 6,500	$ 900
Repurchase-agreements	109,561	79,219
Short-term borrowings	$ 116,061	$ 80,119

SHORT-TERM BORROWINGS_ (Detai_2

SHORT-TERM BORROWINGS: (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase-agreements	$ 109,561	$ 79,219
Average amount outstanding	90,561	60,915
Maximum amount outstanding at a month end	$ 116,061	$ 91,750
Average interest rate during year (percent)	0.63%	1.84%
Interest rate at year-end (percent)	0.11%	0.31%
Maturity over 90 days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase-agreements	$ 798	$ 1,031
Maturity 30 to 90 Days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase-agreements	21,342	6,552
Maturity up to 30 days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase-agreements	1,086	1,927
Maturity Overnight [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase-agreements	$ 86,335	$ 69,709

OTHER BORROWINGS_ (Details)

OTHER BORROWINGS: (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Other Borrowings Disclosure [Abstract]
FHLB advances	$ 5,859	$ 20,796

OTHER BORROWINGS_ (Details 1)

OTHER BORROWINGS: (Details 1) $ in Thousands	Dec. 31, 2020USD ($)
Other Borrowings Disclosure [Abstract]
2014	$ 0
2015	0
2016	6
2017	0
2018	0
Thereafter	0
Long-term Debt	$ 6

OTHER BORROWINGS_ (Details text

OTHER BORROWINGS: (Details textual) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
FHLB advances	$ 5,859	$ 20,796
General debt obligations, collateral pledged	97,100	$ 129,300
General debt obligations, maximum amount available	$ 397,100
Minimum
Debt Instrument [Line Items]
Branch of FHLB bank, interest rate (percent)	0.25%	2.30%
Maximum
Debt Instrument [Line Items]
Branch of FHLB bank, interest rate (percent)	0.39%	2.80%

INCOME TAXES_ (Details)

INCOME TAXES: (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Federal:
Currently payable	$ 7,886	$ 7,118	$ 7,018
Deferred	1,188	2,435	1,793
Federal income tax expense (benefit), continuing operations	9,074	9,553	8,811
State:
Currently payable	2,422	2,168	1,699
Deferred	196	406	635
State and local income tax expense (benefit), continuing operations	2,618	2,574	2,334
TOTAL	$ 11,692	$ 12,127	$ 11,145

INCOME TAXES_ (Details 1)

INCOME TAXES: (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Federal income taxes computed at the statutory rate	$ 13,763	$ 12,810	$ 12,122
Add (deduct) tax effect of:
Tax exempt income	(2,643)	(2,551)	(2,495)
ESOP dividend deduction	(98)	(115)	(103)
State tax, net of federal benefit	2,068	2,034	1,846
General business tax credits	(1,648)	(148)	(148)
Other, net	250	97	(77)
TOTAL	$ 11,692	$ 12,127	$ 11,145

INCOME TAXES_ (Details 2)

INCOME TAXES: (Details 2) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets:
Other than temporary impairment	$ 753	$ 754
Net unrealized losses on retirement plans	8,132	7,465
Loan loss provisions	12,150	5,288
Deferred compensation	2,496	2,615
Compensated absences	623	611
Post-retirement benefits	1,286	1,309
Deferred loss on acquisition	0	482
Other	2,186	2,161
GROSS DEFERRED ASSETS	30,136	23,788
Deferred tax liabilities:
Net unrealized gains on securities available-for-sale	(8,752)	(4,248)
Depreciation	(2,155)	(2,376)
Mortgage servicing rights	(390)	(332)
Pensions	(843)	(475)
Intangibles	(5,458)	(3,285)
Other	(3,963)	(2,827)
GROSS DEFERRED LIABILITIES	(23,118)	(15,044)
NET DEFERRED TAX ASSETS (LIABILITIES)	$ 7,018	$ 8,744

INCOME TAXES_ (Details 3)

INCOME TAXES: (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of Unrecognized Tax Benefits
Balance at January 1	$ 825	$ 922	$ 825
Additions based on tax positions related to the current year	114	298	174
Additions based on tax positions related to prior years	0	0	0
Reductions due to the statute of limitations	(72)	(395)	(77)
Balance at December 31	$ 867	$ 825	$ 922

INCOME TAXES_ (Details textual)

INCOME TAXES: (Details textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Federal statutory income tax rate (percent)	21.00%
Part of unrecognized tax benefits	$ 867	$ 825	$ 922	$ 825
Increase (decrease) in interest and penalities	11	9	23
Income tax examination, penalties and interest accrued	$ 64	$ 53	$ 52

FINANCIAL INSTRUMENTS WITH OF_3

FINANCIAL INSTRUMENTS WITH OFF-BALANCE-SHEET RISK: (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Loss Contingencies [Line Items]
Other Commitments			$ 119,108,000	$ 105,872,000
TOTAL			716,382,000	551,760,000
Minimum
Loss Contingencies [Line Items]
Loans and Leases Receivable, Commitments, Fixed Rates	$ 0.0325	$ 0.0425
Maximum
Loss Contingencies [Line Items]
Loans and Leases Receivable, Commitments, Fixed Rates	$ 0.0600	$ 0.0725
Home Equity
Loss Contingencies [Line Items]
TOTAL			88,672,000	87,327,000
Commercial Operating Lines
Loss Contingencies [Line Items]
TOTAL			508,602,000	358,561,000
Commercial letters of credit
Loss Contingencies [Line Items]
TOTAL			$ 3,601,000	$ 3,851,000

FINANCIAL INSTRUMENTS WITH OF_4

FINANCIAL INSTRUMENTS WITH OFF-BALANCE-SHEET RISK: (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Risks and Uncertainties [Abstract]
Notional amount of interest rate derivatives	$ 29.1	$ 26.2
Gain (loss) on interest rate derivative instruments not designated as hedging instruments	$ 2.5	$ 0.8

RETIREMENT PLANS_ (Details)

RETIREMENT PLANS: (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Retirement Benefits [Abstract]
Service cost - benefits earned	$ 1,300	$ 1,218	$ 1,388
Interest cost on projected benefit obligation	3,116	3,465	3,194
Expected return on plan assets	(4,198)	(3,585)	(3,962)
Net amortization and deferral	1,968	1,558	1,448
Net periodic pension cost	2,186	2,656	2,068
Net loss (gain) during the period	3,188	6,362	(1,192)
Amortization of prior service cost	1	1	1
Amortization of unrecognized gain (loss)	(1,967)	(1,558)	(1,447)
Total recognized in other comprehensive (income) loss	(1,220)	(4,803)	2,640
Total recognized net periodic pension cost and other comprehensive income	$ 3,406	$ 7,459	$ (572)

RETIREMENT PLANS_ (Details 1)

RETIREMENT PLANS: (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Retirement Benefits [Abstract]
Defined Benefit Plan, Benefit Obligation, Benefits Paid	$ 4,130	$ 3,921
Change in benefit obligation:
Benefit obligation at January 1	102,791	87,796
Service cost	1,300	1,218	$ 1,388
Interest cost	3,116	3,465	3,194
Actuarial (gain) loss	6,845	14,233
Benefits paid	(4,130)	(3,921)
Benefit obligation at December 31	109,922	102,791	87,796
Reconciliation of fair value of plan assets:
Fair value of plan assets at January 1	73,962	64,335
Actual return on plan assets	7,856	11,456
Employer contributions	4,749	2,092
Fair value of plan assets at December 31	82,437	73,962	$ 64,335
Funded status at December 31 (plan assets less benefit obligation)	$ (27,485)	$ (28,829)

RETIREMENT PLANS_ (Details 2)

RETIREMENT PLANS: (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Retirement Benefits [Abstract]
Net loss (gain)	$ 29,006	$ 27,786
Prior service cost (credit)	1
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Reclassification Adjustment, before Tax	1	2
Pension and other postretirement benefit plans, adjustment	$ 29,007	$ 27,788

RETIREMENT PLANS_ (Details 3)

RETIREMENT PLANS: (Details 3)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Principal assumptions used (benefit obligation):
Discount rate (percent)	2.52%	3.22%
Rate of increase in compensation levels (percent)	3.00%	3.00%
Principal assumptions used (net periodic benefit):
Discount rate	3.22%	4.22%
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, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
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)	6.00%	4.00%
Other Securities [Member] | Employee Stock Ownership Plan
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (percent)	1.00%	2.00%
Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (percent)	63.00%	63.00%
Equity Securities | Minimum
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (percent)	25.00%
Equity Securities | Maximum
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (percent)	75.00%
Equity Securities | Employee Stock Ownership Plan
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (percent)	99.00%	98.00%
Equity Securities | Employee Stock Ownership Plan | Minimum
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (percent)	95.00%
Equity Securities | Employee Stock Ownership Plan | Maximum
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (percent)	99.00%
Debt securities
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (percent)	31.00%	33.00%
Debt securities | Maximum
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (percent)	50.00%
Debt securities | Employee Stock Ownership Plan
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (percent)	0.00%	0.00%
Other Security Investments [Member] | Maximum
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (percent)	20.00%
Other Security Investments [Member] | Employee Stock Ownership Plan | Maximum
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (percent)	5.00%

RETIREMENT PLANS_ (Details 5)

RETIREMENT PLANS: (Details 5) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 82,437	$ 73,962	$ 64,335
Quoted Prices in Active Markets for Identical Assets - Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	69,764	60,858
Significant Other Observable Inputs - Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	12,673	13,104
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	55,235	51,334
Equity Securities | Quoted Prices in Active Markets for Identical Assets - Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	55,235	51,334
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	12,673	13,104
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	12,673	13,104
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	14,529	9,524
Investment Funds | Quoted Prices in Active Markets for Identical Assets - Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	14,529	9,524
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, 2020USD ($)
Retirement Benefits [Abstract]
2014	$ 4,917
2015	5,203
2016	5,423
2017	5,606
2018	5,735
2019-2023	$ 30,615

RETIREMENT PLANS_ (Details 7)

RETIREMENT PLANS: (Details 7) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net loss (gain) during the period	$ 3,188	$ 6,362	$ (1,192)
Amortization of prior service cost	(1)	(1)	(1)
Amortization of unrecognized gain (loss)	(1,967)	(1,558)	(1,447)
Total recognized in other comprehensive income (loss)	1,220	4,803	(2,640)
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	1,459	1,357	260
Amortization of prior service cost	0	0	0
Amortization of unrecognized gain (loss)	(246)	(75)	(51)
Total recognized in other comprehensive income (loss)	$ 1,213	$ 1,282	$ 209

RETIREMENT PLANS_ (Details 8)

RETIREMENT PLANS: (Details 8) $ in Thousands	Dec. 31, 2020USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
2014	$ 4,917
2015	5,203
2016	5,423
2017	5,606
2018	5,735
2019-2023	30,615
Supplemental Employee Retirement Plans, Defined Benefit
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
2014	0
2015	203
2016	399
2017	390
2018	380
2019-2023	$ 3,104

RETIREMENT PLANS_ (Details 9)

RETIREMENT PLANS: (Details 9) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Change in benefit obligation:
Benefit obligation at January 1	$ 102,791	$ 87,796
Service cost	1,300	1,218	$ 1,388
Interest cost	3,116	3,465	3,194
Actuarial (gain) loss	6,845	14,233
Defined Benefit Plan, Benefit Obligation, Benefits Paid	4,130	3,921
Benefit obligation at December 31	109,922	102,791	87,796
Funded status at December 31	(27,485)	(28,829)
Supplemental Employee Retirement Plans, Defined Benefit
Change in benefit obligation:
Benefit obligation at January 1	3,975	3,420
Service cost	38	34
Interest cost	125	145
Defined Benefit Plan, Benefit Obligation, Contributions by Plan Participant	75	65
Actuarial (gain) loss	238	626
Defined Benefit Plan, Benefit Obligation, Benefits Paid	304	315
Benefit obligation at December 31	4,147	3,975	$ 3,420
Funded status at December 31	$ 4,147	$ 3,975

RETIREMENT PLANS_ (Details 10)

RETIREMENT PLANS: (Details 10)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Retirement Benefits [Abstract]
Discount rate (percent)	2.52%	3.22%
Initial weighted health care cost trend rate (percent)	5.00	5.00
Ultimate health care cost trend rate (percent)	500.00%	500.00%
Year that the rate is assumed to stabilize and remain unchanged (percent)	2020	2019

RETIREMENT PLANS_ (Details 11)

RETIREMENT PLANS: (Details 11) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1,300	$ 1,218	$ 1,388
Interest cost	3,116	3,465	3,194
Recognized actuarial loss	6,845	14,233
Net periodic pension cost	2,186	2,656	2,068
Net loss (gain) during the period	3,188	6,362	(1,192)
Amortization of prior service cost	(1)	(1)	(1)
Total recognized in other comprehensive income (loss)	1,220	4,803	(2,640)
Total recognized net periodic pension cost and other comprehensive income	3,406	7,459	(572)
Postretirement Health Coverage [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	38	34	42
Interest cost	125	146	131
Amortization of net actuarial loss (gain)	0	(16)	0
Net periodic pension cost	163	164	173
Net loss (gain) during the period	238	626	(872)
Amortization of prior service cost	0	16	0
Total recognized in other comprehensive income (loss)	238	642	(872)
Total recognized net periodic pension cost and other comprehensive income	$ 401	$ 806	$ (699)

RETIREMENT PLANS_ (Details 12)

RETIREMENT PLANS: (Details 12) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)
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	12
Effect on post-retirement benefit obligation 1% Point Decrease	$ 11

RETIREMENT PLANS_ (Details 13)

RETIREMENT PLANS: (Details 13) $ in Thousands	Dec. 31, 2020USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
2014	$ 4,917
2015	5,203
2016	5,423
2017	5,606
2018	5,735
2019-2023	30,615
Postretirement Health Coverage [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
2014	240
2015	244
2016	246
2017	250
2018	245
2019-2023	$ 1,177

RETIREMENT PLANS_ (Details Text

RETIREMENT PLANS: (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Percentage Of Plan Assets	100.00%	100.00%
Employer contributions	$ 4,749	$ 2,092
Cash contributions to ESOP	(1,471)	(1,251)	$ (1,087)
Cash contributions to ESOP for employees no longer participating in plan	1,200	926	735
Amounts that will be amortized from accumulated other comprehensive income (loss) in next fiscal year	2,100
Pension plans with accumulated benefit obligations in excess of plan assets, aggregate accumulated benefit obligation	105,200	98,400
Pension and other postretirement defined benefit plans, liabilities	8,400	6,700
Accumulated other comprehensive income (loss)	9,764	(7,501)	(23,454)
Prior service cost (credit)	1
First Financial Corporation Common Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan assets equity securities	$ 16,500	$ 19,800
Percentage of plan assets (percent)	20.00%	27.00%
Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Percentage Of Plan Assets	63.00%	63.00%
Debt securities
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Percentage Of Plan Assets	31.00%	33.00%
Other Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Percentage Of Plan Assets	6.00%	4.00%
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	$ 4,440	$ 1,770	2,260
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	$ (715)
Employee Stock Ownership Plan | First Financial Corporation Common Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan assets equity securities	$ 5,500	$ 5,100
Employee Stock Ownership Plan | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Percentage Of Plan Assets	99.00%	98.00%
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	1.00%	2.00%
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	$ 357
Pension expense	539	$ 339	411
Accumulated other comprehensive income (loss), after tax	3,600	2,400
Accumulated other comprehensive income (loss)	(266)	(27)
Postretirement Health Coverage [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected contributions to pension plan in 2014	240
Pension expense	305	315
Amortization of transition obligations (assets)	$ 0	$ (16)	$ 0

STOCK BASED COMPENSATION_ (Deta

STOCK BASED COMPENSATION: (Details Textual) - USD ($) $ in Thousands	3 Months Ended			12 Months Ended		36 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2013	Feb. 05, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				3 years
Share-based Payment Arrangement, Expensed and Capitalized, Amount	$ 820	$ 799	$ 745
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)						205,760
Number of additional shares authorized (shares)				494,240
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (shares)				19,688,000	19,783,000
Vesting period				3 years
Total compensation cost not yet recognized, stock options				$ 838	$ 822
Total compensation cost not yet recognized, period for recognition				1 year 6 months
Options, vested in period, fair value				$ 734	$ 816
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_ (De_2

STOCK BASED COMPENSATION: (Details) - Restricted Stock - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Shares Outstanding
Nonvested balance at January 1 (shares)	18,931	16,999
Granted during the year (shares)	19,688	19,783
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	(18,895)	(17,851)
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)	19,724	18,931
Weighted Average Exercise Price
Nonvested balance at January 1	$ 43,440	$ 45,920
Granted during the year (usd per share)	42,500	42,520
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value	43,430	44,790
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	$ 42,510	$ 43,440

OTHER COMPREHENSIVE INCOME (L_3

OTHER COMPREHENSIVE INCOME (LOSS)-AOCI (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance, January 1	$ (7,501)	$ (23,454)
Change in other comprehensive income before reclassification	15,965	14,818
Amounts reclassified from accumulated other comprehensive income	1,300	1,135
Net current period other comprehensive income (loss)	17,265	15,953
Ending balance, December 31	9,764	(7,501)
Unrealized Gains and Losses on Available-for-Sale Securities
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance, January 1	14,893	(6,105)
Change in other comprehensive income before reclassification	19,444	21,031
Amounts reclassified from accumulated other comprehensive income	(175)	(33)
Net current period other comprehensive income (loss)	19,269	20,998
Ending balance, December 31	34,162	14,893
Retirement Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance, January 1	(22,394)	(17,349)
Change in other comprehensive income before reclassification	(3,479)	(6,213)
Amounts reclassified from accumulated other comprehensive income	1,475	1,168
Net current period other comprehensive income (loss)	(2,004)	(5,045)
Ending balance, December 31	$ (24,398)	$ (22,394)

OTHER COMPREHENSIVE INCOME (L_4

OTHER COMPREHENSIVE INCOME (LOSS): (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance, January 1	$ (7,501)	$ (23,454)
Current Period Change	17,265	15,953
Ending balance, December 31	9,764	(7,501)
Unrealized Gains and Losses on Available-for-Sale Securities
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance, January 1	14,893	(6,105)
Current Period Change	19,269	20,998
Ending balance, December 31	34,162	14,893
Unrealized gains losses on securities available-for-sale without other than temporary impairment
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance, January 1	12,178	(8,446)
Current Period Change	19,632	20,624
Ending balance, December 31	31,810	12,178
Unrealized gains losses on securities available-for-sale with other than temporary impairment
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance, January 1	2,715	2,341
Current Period Change	(363)	374
Ending balance, December 31	2,352	2,715
Retirement Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance, January 1	(22,394)	(17,349)
Current Period Change	(2,004)	5,045
Ending balance, December 31	$ (24,398)	$ (22,394)

OTHER COMPREHENSIVE INCOME _ OT

OTHER COMPREHENSIVE INCOME : OTHER COMPREHENSIVE INCOME (LOSS)-Reclassifications (Details) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net securities gains (losses)										$ 233	$ 44	$ 2
Income tax expense										(11,692)	(12,127)	(11,145)
NET INCOME		$ 15,739	$ 14,000	$ 11,924	$ 12,181	$ 14,364	$ 12,257	$ 12,569	$ 9,682	53,844	48,872	46,583
Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
NET INCOME										(1,300)	(1,135)	(1,083)
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)										233	44	2
Income tax expense										(58)	(11)	0
NET INCOME										175	33	2
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]									(1,967)	(1,558)	(1,447)
Income tax expense										492	390	362
NET INCOME										$ (1,475)	$ (1,168)	$ (1,085)
[1]	Included in the computation of net periodic benefit cost which is included in salaries and benefits. (see Footnote 16 for additional details).

REGULATORY MATTERS_ (Details Te

REGULATORY MATTERS: (Details Textual) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)
Financial Services, Banking and Thrift [Abstract]
Undistributed earnings	$ 15.5

REGULATORY MATTERS_ (Details)

REGULATORY MATTERS: (Details) $ in Thousands	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Corporation [Member]
Capital [Abstract]
Capital	$ 538,440	$ 495,817
Capital to Risk Weighted Assets (percent)	0.1740	0.1616
Capital Required for Capital Adequacy	$ 324,849	$ 322,091
Capital Required for Capital Adequacy to Risk Weighted Assets (percent)	0.10500	0.10500
Common equity capital	$ 499,664	$ 475,874
Commen Equity Capital to Risk Weighted Assets	16.15%	15.51%
Common equity capital required for capital adequacy	$ 216,566	$ 214,728
Common Equity Capital required for Capital Adequacy to Risk Weighted Assets	7.00%	7.00%
Tier One Risk Based Capital [Abstract]
Tier One Risk Based Capital	$ 499,664	$ 475,874
Tier One Risk Based Capital to Risk Weighted Assets (percent)	0.1615	0.1551
Tier One Risk Based Capital Required for Capital Adequacy	$ 262,973	$ 260,741
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets (percent)	0.08500	0.08500
Tier One Leverage Capital [Abstract]
Tier One Leverage Capital	$ 499,664	$ 475,874
Tier One Leverage Capital to Average Assets (percent)	0.1124	0.1204
Tier One Leverage Capital Required for Capital Adequacy	$ 177,781	$ 158,081
Tier One Leverage Capital Required for Capital Adequacy to Average Assets (percent)	0.0400	0.0400
First Financial Bank [Member]
Capital [Abstract]
Capital	$ 507,869	$ 472,995
Capital to Risk Weighted Assets (percent)	0.1703	0.1591
Capital Required for Capital Adequacy	$ 313,075	$ 312,111
Capital Required for Capital Adequacy to Risk Weighted Assets (percent)	0.10500	0.10500
Capital Required to be Well Capitalized	$ 298,166	$ 297,249
Capital Required to be Well Capitalized to Risk Weighted Assets (percent)	0.1000	0.1000
Common equity capital	$ 470,551	$ 457,649
Commen Equity Capital to Risk Weighted Assets	15.78%	15.40%
Common equity capital required for capital adequacy	$ 208,716	$ 208,074
Common Equity Capital required for Capital Adequacy to Risk Weighted Assets	7.00%	7.00%
Common equity capital required to be well capitalized	$ 193,808	$ 193,212
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	$ 470,551	$ 457,649
Tier One Risk Based Capital to Risk Weighted Assets (percent)	0.1578	0.1540
Tier One Risk Based Capital Required for Capital Adequacy	$ 253,441	$ 252,661
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets (percent)	0.08500	0.08500
Tier One Risk Based Capital Required to be Well Capitalized	$ 238,533	$ 237,799
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets (percent)	0.0800	0.0800
Tier One Leverage Capital [Abstract]
Tier One Leverage Capital	$ 470,551	$ 457,649
Tier One Leverage Capital to Average Assets (percent)	0.1090	0.1193
Tier One Leverage Capital Required for Capital Adequacy	$ 172,728	$ 153,453
Tier One Leverage Capital Required for Capital Adequacy to Average Assets (percent)	0.0400	0.0400
Tier One Leverage Capital Required to be Well Capitalized	$ 215,910	$ 191,816
Tier One Leverage Capital Required to be Well Capitalized to Average Assets (percent)	0.0500	0.0500

PARENT COMPANY CONDENSED FINA_3

PARENT COMPANY CONDENSED FINANCIAL STATEMENTS: (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
ASSETS
Cash and due from banks	$ 657,470	$ 127,426
Land and headquarters building, net	62,063	62,576
Other assets	37,530	41,556
TOTAL ASSETS	4,557,544	4,023,250
LIABILITIES AND SHAREHOLDERS’ EQUITY
Other liabilities	82,687	79,193
TOTAL LIABILITIES	3,960,552	3,465,642
Shareholders' Equity	596,992	557,608	$ 442,701	$ 413,569
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	4,557,544	4,023,250
Parent
ASSETS
Cash and due from banks	2,480	4,394
Investments in subsidiaries	597,888	566,384
Land and headquarters building, net	4,614	4,807
Other assets	6,000	23
TOTAL ASSETS	610,982	575,608
LIABILITIES AND SHAREHOLDERS’ EQUITY
Dividends payable	7,182	7,142
Other liabilities	6,808	681
TOTAL LIABILITIES	13,990	18,000
Shareholders' Equity	596,992	557,608
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 610,982	$ 575,608

PARENT COMPANY CONDENSED FINA_4

PARENT COMPANY CONDENSED FINANCIAL STATEMENTS: (Details 1) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Condensed Financial Statements, Captions [Line Items]
Income tax benefit									$ (11,692)	$ (12,127)	$ (11,145)
NET INCOME	$ 15,739	$ 14,000	$ 11,924	$ 12,181	$ 14,364	$ 12,257	$ 12,569	$ 9,682	53,844	48,872	46,583
Comprehensive Income (Loss), Net of Tax, Attributable to Parent									71,109	64,825	40,199
Parent
Condensed Financial Statements, Captions [Line Items]
Dividends from subsidiaries									31,069	81,281	13,651
Other income									1,054	720	720
Other operating expenses									(3,430)	(4,327)	(2,814)
Income before income taxes and equity in undistributed earnings of subsidiaries									28,319	77,532	11,557
Income tax benefit									801	908	934
Income before equity in undistributed earnings of subsidiaries									29,120	78,440	12,491
Equity in undistributed earnings of subsidiaries									24,724	(29,568)	34,092
NET INCOME									$ 53,844	$ 48,872	$ 46,583

PARENT COMPANY CONDENSED FINA_5

PARENT COMPANY CONDENSED FINANCIAL STATEMENTS: (Details 2) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income (Loss) Attributable to Parent	$ 15,739	$ 14,000	$ 11,924	$ 12,181	$ 14,364	$ 12,257	$ 12,569	$ 9,682	$ 53,844	$ 48,872	$ 46,583
Adjustments to reconcile net income to net cash provided by operating activities:
Contribution of shares to ESOP									1,471	1,251	1,087
NET CASH FROM OPERATING ACTIVITIES									77,425	49,901	57,448
CASH FLOWS FROM INVESTING ACTIVITIES:
NET CASH FROM INVESTING ACTIVITIES									(16,248)	(32,866)	(34,324)
CASH FLOWS FROM FINANCING ACTIVITIES:
Purchases of treasury stock									(9,220)	(315)	(391)
Dividends paid									(14,273)	(12,648)	(12,496)
NET CASH FROM FINANCING ACTIVITIES									468,867	36,003	(22,843)
Supplemental disclosures of cash flow information:
Income Taxes									7,549	9,595	7,185
Parent
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income (Loss) Attributable to Parent									53,844	48,872	46,583
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization									328	193	193
Equity in undistributed earnings									(24,724)	(29,568)	(34,092)
Contribution of shares to ESOP									1,471	1,251	1,087
Restricted stock compensation									820	801	745
Increase (decrease) in other liabilities									6,127	(2,150)	(585)
(Increase) decrease in other assets									(5,977)	1,187	(900)
NET CASH FROM OPERATING ACTIVITIES									31,889	20,586	13,031
CASH FLOWS FROM INVESTING ACTIVITIES:
Payments to Acquire Interest in Subsidiaries and Affiliates									0	6,571	0
NET CASH FROM INVESTING ACTIVITIES									0	(6,571)	0
CASH FLOWS FROM FINANCING ACTIVITIES:
Purchases of treasury stock									(9,220)	(315)	(391)
Dividends paid									(14,273)	(12,648)	(12,496)
NET CASH FROM FINANCING ACTIVITIES									(33,803)	(12,963)	(12,887)
NET CHANGE IN CASH AND CASH EQUIVALENTS									(1,914)	1,052	144
CASH AND DUE FROM BANKS, BEGINNING OF YEAR				$ 4,394				$ 3,342	4,394	3,342	3,198
CASH AND DUE FROM BANKS, END OF YEAR	$ 2,480				$ 4,394				2,480	4,394	3,342
Supplemental disclosures of cash flow information:
Interest									375	0	0
Income Taxes									$ 7,538	$ 9,595	$ 7,185

SELECTED QUARTERLY DATA (UNAU_2

SELECTED QUARTERLY DATA (UNAUDITED): (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Selected Quarterly Financial Information [Abstract]
Interest Income	$ 40,287	$ 39,539	$ 39,256	$ 41,403	$ 43,651	$ 39,595	$ 33,259	$ 32,616
Interest Expense	2,717	3,008	3,361	5,053	5,176	5,596	3,507	3,190	$ 14,139	$ 17,469	$ 9,645
NET INTEREST INCOME	37,570	36,531	35,895	36,350	38,475	33,999	29,752	29,426	146,346	131,652	116,579
Provision For Loan Losses	448	4,425	2,965	2,690	1,500	1,500	230	1,470	10,528	4,700	5,768
Net income	$ 15,739	$ 14,000	$ 11,924	$ 12,181	$ 14,364	$ 12,257	$ 12,569	$ 9,682	$ 53,844	$ 48,872	$ 46,583
BASIC AND DILUTED (in dollars per share)	$ 1.15	$ 1.02	$ 0.87	$ 0.89	$ 1.06	$ 0.93	$ 1.02	$ 0.79	$ 3.93	$ 3.80	$ 3.80

Uncategorized Items - thff-2020

Label	Element	Value
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	$ 74,107,000