FAIR VALUE - Financial Instruments at Carrying Amounts and Estimated Fair Values (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financial Assets
Interest-bearing deposits with banks	$ 298,645	$ 99,055
Restricted investments in bank stocks	10,307	10,563
Investment securities	407,690	466,465
Financial Liabilities
Securities sold under agreements to repurchase	22,794	19,466
Carrying Amount
Financial Assets
Cash and due from banks	27,600	26,203
Interest-bearing deposits with banks	298,645	99,055
Restricted investments in bank stocks	10,307	10,563
Investment securities	407,690	466,465
Loans held for sale	11,449	11,734
Loans, net of allowance for loan losses	2,026,054	1,959,539
Interest rate lock commitments on residential mortgages	672	673
Accrued interest receivable	9,070	8,927
Financial Liabilities
Deposits	2,547,089	2,356,880
Securities sold under agreements to repurchase	22,794	19,466
FHLB advances and other	57,942	58,045
Subordinated notes	31,918	31,903
Accrued interest payable	683	238
Carrying Amount \| Interest rate swaps
Financial Assets
Interest rate swaps	390	690
Financial Liabilities
Interest rate swaps	781	1,956
Fair Value \| Fair Value, Inputs, Level 1, 2 and 3
Financial Assets
Cash and due from banks	27,600	26,203
Interest-bearing deposits with banks	298,645	99,055
Investment securities	407,690	466,465
Loans held for sale	11,449	11,734
Loans, net of allowance for loan losses	2,021,322	1,953,860
Interest rate lock commitments on residential mortgages	672	673
Accrued interest receivable	9,070	8,927
Financial Liabilities
Deposits	2,548,974	2,359,317
Securities sold under agreements to repurchase	22,794	19,466
FHLB advances and other	58,159	58,298
Subordinated notes	33,400	31,712
Accrued interest payable	683	238
Fair Value \| Fair Value, Inputs, Level 1, 2 and 3 \| Interest rate swaps
Financial Assets
Interest rate swaps	390	690
Financial Liabilities
Interest rate swaps	781	1,956
Fair Value \| Level 1
Financial Assets
Cash and due from banks	27,600	26,203
Interest-bearing deposits with banks	298,645	99,055
Investment securities	388	371
Loans held for sale	0	0
Loans, net of allowance for loan losses	0	0
Interest rate lock commitments on residential mortgages	0	0
Accrued interest receivable	0	0
Financial Liabilities
Deposits	0	0
Securities sold under agreements to repurchase	0	0
FHLB advances and other	0	0
Subordinated notes	0	0
Accrued interest payable	0	0
Fair Value \| Level 1 \| Interest rate swaps
Financial Assets
Interest rate swaps	0	0
Financial Liabilities
Interest rate swaps	0	0
Fair Value \| Level 2
Financial Assets
Cash and due from banks	0	0
Interest-bearing deposits with banks	0	0
Investment securities	381,738	434,591
Loans held for sale	11,449	11,734
Loans, net of allowance for loan losses	0	0
Interest rate lock commitments on residential mortgages	0	0
Accrued interest receivable	1,810	1,529
Financial Liabilities
Deposits	2,548,974	2,359,317
Securities sold under agreements to repurchase	22,794	19,466
FHLB advances and other	58,159	58,298
Subordinated notes	33,400	31,712
Accrued interest payable	683	238
Fair Value \| Level 2 \| Interest rate swaps
Financial Assets
Interest rate swaps	390	690
Financial Liabilities
Interest rate swaps	781	1,956
Fair Value \| Level 3
Financial Assets
Cash and due from banks	0	0
Interest-bearing deposits with banks	0	0
Investment securities	25,564	31,503
Loans held for sale	0	0
Loans, net of allowance for loan losses	2,021,322	1,953,860
Interest rate lock commitments on residential mortgages	672	673
Accrued interest receivable	7,260	7,398
Financial Liabilities
Deposits	0	0
Securities sold under agreements to repurchase	0	0
FHLB advances and other	0	0
Subordinated notes	0	0
Accrued interest payable	0	0
Fair Value \| Level 3 \| Interest rate swaps
Financial Assets
Interest rate swaps	0	0
Financial Liabilities
Interest rate swaps	$ 0	$ 0

Interest payable fair value.

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Interest receivable fair value.

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- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Fair value of subordinated debt obligations including, but not limited to, subordinated loan, subordinated bond, subordinated debenture or junior debt.

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Fair value portion of borrowing from Federal Home Loan Bank (FHLBank).

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For banks and other depository institutions (including Federal Reserve Banks, if applicable): Interest-bearing deposits in other financial institutions for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet.

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Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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Fair value portion of mortgage loans held-for-sale.

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Investments which are not defined as or included in marketable (debt, equity, or other) securities whose use is restricted in whole or in part, generally by contractual agreements or regulatory requirements. For use in an unclassified balance sheet.

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Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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