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LOANS AND ALLOWANCE FOR LOAN LOSSES - Loan Portfolio (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Composition of loan portfolio [Abstract]
Total loans, net of deferred loan fees and costs	$ 1,742,755	$ 1,518,249
Interest receivable on loans	5,128	4,133
Total recorded investment in loans	1,747,883	1,522,382
Commercial and Agricultural
Composition of loan portfolio [Abstract]
Total recorded investment in loans	262,919	258,013
Commercial Mortgages
Composition of loan portfolio [Abstract]
Total recorded investment in loans	944,501	804,825
Commercial Mortgages | Construction
Composition of loan portfolio [Abstract]
Total loans, net of deferred loan fees and costs	105,330	82,204
Total recorded investment in loans	105,664	82,435
Commercial Mortgages | Commercial mortgages, other
Composition of loan portfolio [Abstract]
Total loans, net of deferred loan fees and costs	836,190	720,358
Total recorded investment in loans	838,837	722,390
Residential Mortgages
Composition of loan portfolio [Abstract]
Total loans, net of deferred loan fees and costs	283,128	259,334
Total recorded investment in loans	283,844	259,967
Consumer Loans
Composition of loan portfolio [Abstract]
Total recorded investment in loans	256,619	199,577
Consumer Loans | Home equity lines and loans
Composition of loan portfolio [Abstract]
Total loans, net of deferred loan fees and costs	76,871	70,670
Total recorded investment in loans	77,105	70,854
Consumer Loans | Indirect consumer loans
Composition of loan portfolio [Abstract]
Total loans, net of deferred loan fees and costs	168,214	118,569
Total recorded investment in loans	168,531	118,855
Consumer Loans | Direct consumer loans
Composition of loan portfolio [Abstract]
Total loans, net of deferred loan fees and costs	10,933	9,827
Total recorded investment in loans	10,983	9,868
Commercial and industrial | Commercial and Agricultural
Composition of loan portfolio [Abstract]
Total loans, net of deferred loan fees and costs	262,014	256,893
Total recorded investment in loans	262,844	257,618
Agricultural | Commercial and Agricultural
Composition of loan portfolio [Abstract]
Total loans, net of deferred loan fees and costs	75	394
Total recorded investment in loans	$ 75	$ 395

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