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LOANS - Impaired Loans (Details) $ in Thousands	Mar. 31, 2021 USD ($) property borrower	Dec. 31, 2020 USD ($)
LOANS
Unpaid Principal Balance - with no allowance	$ 12,279	$ 13,211
Recorded Investment - with no allowance	8,804	9,736
Related Allowance - with no allowance	0	0
Unpaid Principal Balance - with allowance	9,354	8,082
Recorded investment - with allowance	9,354	8,082
Related Allowance - with allowance	1,124	925
Unpaid Principal Balance	21,633	21,293
Recorded Investment	18,158	17,818
Commercial | Real estate loan
LOANS
Unpaid Principal Balance - with no allowance	6,731	7,168
Recorded Investment - with no allowance	4,961	5,398
Related Allowance - with no allowance	0	0
Unpaid Principal Balance - with allowance	7,788	6,501
Recorded investment - with allowance	7,788	6,501
Related Allowance - with allowance	898	691
Commercial | Commercial and industrial
LOANS
Unpaid Principal Balance - with no allowance	1,844	1,781
Recorded Investment - with no allowance	1,350	1,287
Related Allowance - with no allowance	0	0
Unpaid Principal Balance - with allowance	72	72
Recorded investment - with allowance	72	72
Related Allowance - with allowance	72	72
Commercial | Loans secured by farm land
LOANS
Unpaid Principal Balance - with no allowance	84	84
Recorded Investment - with no allowance	84	84
Related Allowance - with no allowance	0	0
Commercial | Multi-family (5 or more) residential
LOANS
Unpaid Principal Balance - with no allowance	2,734	2,770
Recorded Investment - with no allowance	1,578	1,614
Related Allowance - with no allowance	$ 0	0
Residential mortgage
LOANS
Number borrowers collateralized by one property with specific allowance | borrower	2
Number of properties collateralized each loan | property	1
Residential mortgage | Real estate loan
LOANS
Related Allowance - with allowance	$ 146	153
Residential mortgage | Real estate loan | first liens
LOANS
Unpaid Principal Balance - with no allowance	731	1,248
Recorded Investment - with no allowance	731	1,248
Related Allowance - with no allowance	0	0
Unpaid Principal Balance - with allowance	1,189	1,200
Recorded investment - with allowance	1,189	1,200
Related Allowance - with allowance	8	9
Residential mortgage | Real estate loan | junior liens
LOANS
Unpaid Principal Balance - with no allowance	155	160
Recorded Investment - with no allowance	100	105
Related Allowance - with no allowance	0	0
Unpaid Principal Balance - with allowance	305	309
Recorded investment - with allowance	305	309
Related Allowance - with allowance	$ 146	$ 153

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