ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY - Loans Individually Evaluated For Impairment (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Loans Individually Evaluated for Impairment [Abstract]
Unpaid Principal Balance	$ 29,291		$ 30,422
Recorded Investment	22,978		27,829
Allowance for Loan Losses Allocated	7,662		10,384
Average Recorded Investment	25,258	$ 25,952
Interest Income Recognized	148	274
Cash Basis Interest Income Recognized	146	246
Open End and Junior Lien Loans
Loans Individually Evaluated for Impairment [Abstract]
Unpaid principal balance with no related allowance recorded	49		121
Recorded Investment with no related allowance recorded	49		121
Commercial and Industrial Loans [Member]
Loans Individually Evaluated for Impairment [Abstract]
Allowance for Loan Losses Allocated	6,676		9,324
Commercial and Industrial Loans [Member] \| Working Capital Lines of Credit Loans [Member]
Loans Individually Evaluated for Impairment [Abstract]
Unpaid principal balance with no related allowance recorded	1,097		22
Unpaid principal balance with an allowance recorded	5,140		6,214
Recorded Investment with no related allowance recorded	1,097		22
Recorded investment with an allowance recorded	3,433		6,214
Allowance for Loan Losses Allocated	1,431		3,089
Average Recorded Investment with no related allowance recorded	380	155
Average Recorded Investment with an allowance recorded	5,287	6,487
Interest Income Recognized with no related allowance recorded	0	1
Interest Income Recognized with an allowance recorded	0	72
Cash basis interest income recognized with no related allowance recorded	0	0
Cash basis interest income recognized with an allowance recorded	0	59
Commercial and Industrial Loans [Member] \| Non-working Capital Loans [Member]
Loans Individually Evaluated for Impairment [Abstract]
Unpaid principal balance with no related allowance recorded	2,012		2,130
Unpaid principal balance with an allowance recorded	13,211		13,230
Recorded Investment with no related allowance recorded	619		735
Recorded investment with an allowance recorded	10,577		12,609
Allowance for Loan Losses Allocated	5,245		6,235
Average Recorded Investment with no related allowance recorded	558	1,549
Average Recorded Investment with an allowance recorded	11,719	11,416
Interest Income Recognized with no related allowance recorded	1	29
Interest Income Recognized with an allowance recorded	90	132
Cash basis interest income recognized with no related allowance recorded	1	24
Cash basis interest income recognized with an allowance recorded	90	128
Commercial Real Estate and Multi-family Residential Loans [Member]
Loans Individually Evaluated for Impairment [Abstract]
Allowance for Loan Losses Allocated	502		538
Commercial Real Estate and Multi-family Residential Loans [Member] \| Owner Occupied Loans [Member]
Loans Individually Evaluated for Impairment [Abstract]
Unpaid principal balance with no related allowance recorded	2,284		3,189
Unpaid principal balance with an allowance recorded	2,024		1,988
Recorded Investment with no related allowance recorded	2,103		3,010
Recorded investment with an allowance recorded	2,024		1,988
Allowance for Loan Losses Allocated	502		538
Average Recorded Investment with no related allowance recorded	2,144	1,621
Average Recorded Investment with an allowance recorded	1,999	2,080
Interest Income Recognized with no related allowance recorded	5	11
Interest Income Recognized with an allowance recorded	30	13
Cash basis interest income recognized with no related allowance recorded	4	8
Cash basis interest income recognized with an allowance recorded	30	12
Agri-business and Agricultural Loans [Member]
Loans Individually Evaluated for Impairment [Abstract]
Allowance for Loan Losses Allocated	57		90
Agri-business and Agricultural Loans [Member] \| Owner Occupied Loans [Member]
Loans Individually Evaluated for Impairment [Abstract]
Average Recorded Investment with an allowance recorded		147
Interest Income Recognized with an allowance recorded		2
Cash basis interest income recognized with an allowance recorded		1
Agri-business and Agricultural Loans [Member] \| Loans Secured By Farmland
Loans Individually Evaluated for Impairment [Abstract]
Unpaid principal balance with no related allowance recorded	603		603
Unpaid principal balance with an allowance recorded	147		147
Recorded Investment with no related allowance recorded	283		283
Recorded investment with an allowance recorded	147		147
Allowance for Loan Losses Allocated	57		90
Average Recorded Investment with no related allowance recorded	283	283
Average Recorded Investment with an allowance recorded	147
Interest Income Recognized with no related allowance recorded	0	0
Interest Income Recognized with an allowance recorded	0
Cash basis interest income recognized with no related allowance recorded	0	0
Cash basis interest income recognized with an allowance recorded	0
Agri-business and Agricultural Loans [Member] \| Loans For Agricultural Production
Loans Individually Evaluated for Impairment [Abstract]
Unpaid principal balance with no related allowance recorded			15
Recorded Investment with no related allowance recorded			15
Consumer 1-4 Family Mortgage Loans [Member]
Loans Individually Evaluated for Impairment [Abstract]
Allowance for Loan Losses Allocated	427		426
Consumer 1-4 Family Mortgage Loans [Member] \| Closed End First Mortgage Loans [Member]
Loans Individually Evaluated for Impairment [Abstract]
Unpaid principal balance with no related allowance recorded	403		411
Unpaid principal balance with an allowance recorded	1,635		1,643
Recorded Investment with no related allowance recorded	322		330
Recorded investment with an allowance recorded	1,638		1,646
Allowance for Loan Losses Allocated	371		363
Average Recorded Investment with no related allowance recorded	325	380
Average Recorded Investment with an allowance recorded	1,641	1,598
Interest Income Recognized with no related allowance recorded	1	1
Interest Income Recognized with an allowance recorded	21	12
Cash basis interest income recognized with no related allowance recorded	1	1
Cash basis interest income recognized with an allowance recorded	20	12
Consumer 1-4 Family Mortgage Loans [Member] \| Open End and Junior Lien Loans
Loans Individually Evaluated for Impairment [Abstract]
Unpaid principal balance with an allowance recorded	635		641
Recorded investment with an allowance recorded	634		640
Allowance for Loan Losses Allocated	46		53
Average Recorded Investment with no related allowance recorded	85
Average Recorded Investment with an allowance recorded	638
Interest Income Recognized with no related allowance recorded	0
Interest Income Recognized with an allowance recorded	0
Cash basis interest income recognized with no related allowance recorded	0
Cash basis interest income recognized with an allowance recorded	0
Consumer 1-4 Family Mortgage Loans [Member] \| Home Equity Mortgage Open Ended Revolving Lines [Member]
Loans Individually Evaluated for Impairment [Abstract]
Unpaid principal balance with an allowance recorded	51		51
Recorded investment with an allowance recorded	52		52
Allowance for Loan Losses Allocated	10		10
Average Recorded Investment with no related allowance recorded	52	193
Interest Income Recognized with no related allowance recorded	0	0
Cash basis interest income recognized with no related allowance recorded	0	0
Consumer 1-4 Family Mortgage Loans [Member] \| Other Consumer Loans [Member]
Loans Individually Evaluated for Impairment [Abstract]
Unpaid principal balance with an allowance recorded	0		17
Recorded investment with an allowance recorded	0		17
Allowance for Loan Losses Allocated	$ 0		$ 6
Average Recorded Investment with an allowance recorded		43
Interest Income Recognized with an allowance recorded		1
Cash basis interest income recognized with an allowance recorded		$ 1

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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