LOANS AND ALLOWANCE FOR LOAN LOSSES - Loan Portfolio (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	$ 1,497,998	$ 1,309,219
Interest receivable on loans	4,748	3,684
Total recorded investment in loans	1,502,746	1,312,903
Commercial and Agricultural
Composition of loan portfolio [Abstract]
Total recorded investment in loans	396,698	230,922
Commercial Mortgages
Composition of loan portfolio [Abstract]
Total recorded investment in loans	672,540	650,570
Commercial Mortgages \| Construction
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	47,180	43,962
Total recorded investment in loans	47,329	44,082
Commercial Mortgages \| Commercial mortgages
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	623,261	604,832
Total recorded investment in loans	625,211	606,488
Residential mortgages
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	207,999	188,338
Total recorded investment in loans	208,693	188,874
Consumer Loans
Composition of loan portfolio [Abstract]
Total recorded investment in loans	224,815	242,537
Consumer Loans \| Home equity lines and loans
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	85,927	91,784
Total recorded investment in loans	86,184	92,065
Consumer Loans \| Indirect consumer loans
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	124,921	134,973
Total recorded investment in loans	125,318	135,366
Consumer Loans \| Direct consumer loans
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	13,250	15,038
Total recorded investment in loans	13,313	15,106
Commercial and industrial \| Commercial and Agricultural
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	395,044	230,018
Total recorded investment in loans	396,280	230,648
Agricultural \| Commercial and Agricultural
Composition of loan portfolio [Abstract]
Total loans, net of deferred origination fees and costs	416	274
Total recorded investment in loans	$ 418	$ 274

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

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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Amount, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement.

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