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LOANS AND ALLOWANCE FOR LOAN LOSSES - Loan Portfolio (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Composition of loan portfolio [Abstract]
Loans, net of deferred loan fees	$ 1,518,249	$ 1,536,463
Interest receivable on loans	4,133	5,035
Total recorded investment in loans	1,522,382	1,541,498
Commercial, and Agricultural
Composition of loan portfolio [Abstract]
Total recorded investment in loans	258,013	370,252
Commercial Mortgages
Composition of loan portfolio [Abstract]
Total recorded investment in loans	804,825	719,145
Commercial Mortgages | Construction
Composition of loan portfolio [Abstract]
Loans, net of deferred loan fees	82,204	61,945
Total recorded investment in loans	82,435	62,164
Commercial Mortgages | Commercial mortgages
Composition of loan portfolio [Abstract]
Loans, net of deferred loan fees	720,358	654,663
Total recorded investment in loans	722,390	656,981
Residential Mortgages
Composition of loan portfolio [Abstract]
Loans, net of deferred loan fees	259,334	239,401
Total recorded investment in loans	259,967	240,013
Consumer Loans
Composition of loan portfolio [Abstract]
Total recorded investment in loans	199,577	212,088
Consumer Loans | Home equity lines and loans
Composition of loan portfolio [Abstract]
Loans, net of deferred loan fees	70,670	78,547
Total recorded investment in loans	70,854	78,761
Consumer Loans | Indirect Consumer Loans
Composition of loan portfolio [Abstract]
Loans, net of deferred loan fees	118,569	120,538
Total recorded investment in loans	118,855	120,853
Consumer Loans | Direct consumer loans
Composition of loan portfolio [Abstract]
Loans, net of deferred loan fees	9,827	12,423
Total recorded investment in loans	9,868	12,474
Commercial and industrial | Commercial, and Agricultural
Composition of loan portfolio [Abstract]
Loans, net of deferred loan fees	256,893	368,663
Total recorded investment in loans	257,618	369,968
Agricultural | Commercial, and Agricultural
Composition of loan portfolio [Abstract]
Loans, net of deferred loan fees	394	283
Total recorded investment in loans	$ 395	$ 284

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