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ALLOWANCE FOR LOAN LOSSES - Loan loss by the primary segments (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Loans:
Individually evaluated for impairment	$ 824	$ 11
Collectively evaluated for impairment	881,882	862,271
Total loans	882,706	862,282
Allowance for loan losses:
Specific reserve allocation	92	11
General reserve allocation	9,187	8,660
Total allowance for loan losses	9,279	8,671	$ 10,214	$ 9,932
Commercial [Member]
Loans:
Individually evaluated for impairment	816	0
Collectively evaluated for impairment	264,761	250,184
Total loans	265,577	250,184
Allowance for loan losses:
Specific reserve allocation	84	0
General reserve allocation	3,867	3,057
Total allowance for loan losses	3,951	3,057	4,298	4,041
Commercial loans secured by non-owner occupied real estate [Member]
Loans:
Individually evaluated for impairment	8	11
Collectively evaluated for impairment	363,627	356,532
Total loans	363,635	356,543
Allowance for loan losses:
Specific reserve allocation	8	11
General reserve allocation	3,111	3,378
Total allowance for loan losses	3,119	3,389	3,666	3,584
Real estate - residential mortgage [Member]
Loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	235,239	237,964
Total loans	235,239	237,964
Allowance for loan losses:
Specific reserve allocation	0	0
General reserve allocation	1,159	1,235
Total allowance for loan losses	1,159	1,235	1,102	1,169
Consumer [Member]
Loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	18,255	17,591
Total loans	18,255	17,591
Allowance for loan losses:
Specific reserve allocation	0	0
General reserve allocation	126	127
Total allowance for loan losses	126	127	128	151
Allocation for General Risk [Member]
Allowance for loan losses:
Specific reserve allocation	0	0
General reserve allocation	924	863
Total allowance for loan losses	$ 924	$ 863	$ 1,020	$ 987

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

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