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LOANS AND ALLOWANCE FOR LOAN LOSSES - Allowances (Details) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Mar. 31, 2019 | Dec. 31, 2018
Allowance for loan losses, by portfolio segment [Roll Forward] |  |  |  |
Beginning balance | $ 18,944 | $ 21,161 |  |
Charge-offs | (448) | (571) |  |
Recoveries | 156 | 91 |  |
Net recoveries (charge-offs) | (292) | (480) |  |
Provision for loan losses | 1,093 | 709 |  |
Ending balance | 19,745 | 21,390 |  |
Ending allowance balance attributable to loans [Abstract] |  |  |  |
Individually evaluated for impairment |  |  | $ 3,976 | $ 2,189
Collectively evaluated for impairment |  |  | 15,769 | 16,755
Total ending allowance balance | 18,944 | 21,161 | 19,745 | 18,944
Loans [Abstract] |  |  |  |
Loans individually evaluated for impairment |  |  | 11,973 | 8,731
Loans collectively evaluated for impairment |  |  | 1,291,059 | 1,306,878
Total recorded investment in loans |  |  | 1,303,032 | 1,315,609
Commercial and Agricultural |  |  |  |
Allowance for loan losses, by portfolio segment [Roll Forward] |  |  |  |
Beginning balance | 5,383 | 6,976 |  |
Charge-offs | (7) | (19) |  |
Recoveries | 11 | 9 |  |
Net recoveries (charge-offs) | 4 | (10) |  |
Provision for loan losses | 42 | 37 |  |
Ending balance | 5,429 | 7,003 |  |
Ending allowance balance attributable to loans [Abstract] |  |  |  |
Individually evaluated for impairment |  |  | 1,748 | 1,743
Collectively evaluated for impairment |  |  | 3,681 | 3,640
Total ending allowance balance | 5,383 | 6,976 | 5,429 | 5,383
Loans [Abstract] |  |  |  |
Loans individually evaluated for impairment |  |  | 2,136 | 2,128
Loans collectively evaluated for impairment |  |  | 203,001 | 201,284
Total recorded investment in loans |  |  | 205,137 | 203,412
Commercial Mortgages |  |  |  |
Allowance for loan losses, by portfolio segment [Roll Forward] |  |  |  |
Beginning balance | 8,184 | 8,514 |  |
Charge-offs | 0 | 0 |  |
Recoveries | 1 | 1 |  |
Net recoveries (charge-offs) | 1 | 1 |  |
Provision for loan losses | 1,289 | 125 |  |
Ending balance | 9,474 | 8,640 |  |
Ending allowance balance attributable to loans [Abstract] |  |  |  |
Individually evaluated for impairment |  |  | 2,228 | 446
Collectively evaluated for impairment |  |  | 7,246 | 7,738
Total ending allowance balance | 8,184 | 8,514 | 9,474 | 8,184
Loans [Abstract] |  |  |  |
Loans individually evaluated for impairment |  |  | 9,278 | 6,146
Loans collectively evaluated for impairment |  |  | 650,880 | 656,842
Total recorded investment in loans |  |  | 660,158 | 662,988
Residential mortgages |  |  |  |
Allowance for loan losses, by portfolio segment [Roll Forward] |  |  |  |
Beginning balance | 1,226 | 1,316 |  |
Charge-offs | (2) | (94) |  |
Recoveries | 0 | 5 |  |
Net recoveries (charge-offs) | (2) | (89) |  |
Provision for loan losses | (9) | 180 |  |
Ending balance | 1,215 | 1,407 |  |
Ending allowance balance attributable to loans [Abstract] |  |  |  |
Individually evaluated for impairment |  |  | 0 | 0
Collectively evaluated for impairment |  |  | 1,215 | 1,226
Total ending allowance balance | 1,226 | 1,316 | 1,215 | 1,226
Loans [Abstract] |  |  |  |
Loans individually evaluated for impairment |  |  | 392 | 402
Loans collectively evaluated for impairment |  |  | 181,548 | 182,823
Total recorded investment in loans |  |  | 181,940 | 183,225
Consumer Loans |  |  |  |
Allowance for loan losses, by portfolio segment [Roll Forward] |  |  |  |
Beginning balance | 4,151 | 4,355 |  |
Charge-offs | (439) | (458) |  |
Recoveries | 144 | 76 |  |
Net recoveries (charge-offs) | (295) | (382) |  |
Provision for loan losses | (229) | 367 |  |
Ending balance | 3,627 | 4,340 |  |
Ending allowance balance attributable to loans [Abstract] |  |  |  |
Individually evaluated for impairment |  |  | 0 | 0
Collectively evaluated for impairment |  |  | 3,627 | 4,151
Total ending allowance balance | $ 4,151 | $ 4,355 | 3,627 | 4,151
Loans [Abstract] |  |  |  |
Loans individually evaluated for impairment |  |  | 167 | 55
Loans collectively evaluated for impairment |  |  | 255,630 | 265,929
Total recorded investment in loans |  |  | $ 255,797 | $ 265,984

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