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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

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