LOANS AND ALLOWANCE FOR LOAN LOSSES - Loan Portfolio (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Composition of loan portfolio [Abstract]
Total loans, net of deferred loan fees and costs	$ 1,516,668	$ 1,536,463
Interest receivable on loans	4,261	5,035
Total ending loans balance	1,520,929	1,541,498
Commercial and industrial
Composition of loan portfolio [Abstract]
Payroll protection program loans	68,100	150,900
Commercial and agricultural:
Composition of loan portfolio [Abstract]
Total ending loans balance	271,872	370,252
Commercial and agricultural: \| Commercial and industrial
Composition of loan portfolio [Abstract]
Total loans, net of deferred loan fees and costs	270,656	368,663
Total ending loans balance	271,451	369,968
Commercial and agricultural: \| Agricultural
Composition of loan portfolio [Abstract]
Total loans, net of deferred loan fees and costs	419	283
Total ending loans balance	421	284
Commercial mortgages:
Composition of loan portfolio [Abstract]
Total ending loans balance	791,476	719,145
Commercial mortgages: \| Construction
Composition of loan portfolio [Abstract]
Total loans, net of deferred loan fees and costs	67,445	61,945
Total ending loans balance	67,644	62,164
Commercial mortgages: \| Commercial mortgages
Composition of loan portfolio [Abstract]
Total loans, net of deferred loan fees and costs	721,709	654,663
Total ending loans balance	723,832	656,981
Residential mortgages
Composition of loan portfolio [Abstract]
Total loans, net of deferred loan fees and costs	253,991	239,401
Total ending loans balance	254,641	240,013
Consumer loans:
Composition of loan portfolio [Abstract]
Total ending loans balance	202,940	212,088
Consumer loans: \| Home equity lines and loans
Composition of loan portfolio [Abstract]
Total loans, net of deferred loan fees and costs	72,471	78,547
Total ending loans balance	72,653	78,761
Consumer loans: \| Indirect consumer loans
Composition of loan portfolio [Abstract]
Total loans, net of deferred loan fees and costs	119,772	120,538
Total ending loans balance	120,045	120,853
Consumer loans: \| Direct consumer loans
Composition of loan portfolio [Abstract]
Total loans, net of deferred loan fees and costs	10,205	12,423
Total ending loans balance	$ 10,242	$ 12,474

Financing Receivable, after Interest Receivable on Loans, before Allowance on Credit Loss

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- Definition

Financing Receivable, Payroll Protection Program Loans - CARES Act

+ References

No definition available.

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- Definition

Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

+ References

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- Definition

Amount, before allowance for credit loss, of financing receivable.

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