LOANS - Contractual Aging of Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
LOANS
Loans receivable	$ 1,564,849	$ 1,644,209
Current & Past Due Less than 30 Days
LOANS
Loans receivable	1,547,325	1,627,899
Past Due 30-89 Days
LOANS
Loans past due	6,333	8,607
Past Due 90+ Days
LOANS
Loans past due	11,191	7,703
Commercial
LOANS
Loans receivable	978,371	1,007,751
Commercial \| Current & Past Due Less than 30 Days
LOANS
Loans receivable	969,477	1,002,260
Commercial \| Past Due 30-89 Days
LOANS
Loans past due	928	2,453
Commercial \| Past Due 90+ Days
LOANS
Loans past due	7,966	3,038
Commercial \| Real estate loan
LOANS
Loans receivable	569,840	531,810
Commercial \| Real estate loan \| Current & Past Due Less than 30 Days
LOANS
Loans receivable	563,658	529,998
Commercial \| Real estate loan \| Past Due 30-89 Days
LOANS
Loans past due	762	66
Commercial \| Real estate loan \| Past Due 90+ Days
LOANS
Loans past due	5,420	1,746
Commercial \| Commercial and industrial
LOANS
Loans receivable	159,073	159,577
Commercial \| Commercial and industrial \| Current & Past Due Less than 30 Days
LOANS
Loans receivable	158,188	158,523
Commercial \| Commercial and industrial \| Past Due 30-89 Days
LOANS
Loans past due	72	55
Commercial \| Commercial and industrial \| Past Due 90+ Days
LOANS
Loans past due	813	999
Commercial \| Paycheck Protection Program - 1st Draw
LOANS
Loans receivable	1,356	132,269
Commercial \| Paycheck Protection Program - 1st Draw \| Current & Past Due Less than 30 Days
LOANS
Loans receivable	1,339	132,269
Commercial \| Paycheck Protection Program - 1st Draw \| Past Due 30-89 Days
LOANS
Loans past due	17	0
Commercial \| Paycheck Protection Program - 1st Draw \| Past Due 90+ Days
LOANS
Loans past due	0	0
Commercial \| Paycheck Protection Program - 2nd Draw
LOANS
Loans receivable	25,508	0
Commercial \| Paycheck Protection Program - 2nd Draw \| Current & Past Due Less than 30 Days
LOANS
Loans receivable	25,508	0
Commercial \| Paycheck Protection Program - 2nd Draw \| Past Due 30-89 Days
LOANS
Loans past due	0	0
Commercial \| Paycheck Protection Program - 2nd Draw \| Past Due 90+ Days
LOANS
Loans past due	0	0
Commercial \| Political subdivisions
LOANS
Loans receivable	81,301	53,221
Commercial \| Political subdivisions \| Current & Past Due Less than 30 Days
LOANS
Loans receivable	81,301	53,221
Commercial \| Political subdivisions \| Past Due 30-89 Days
LOANS
Loans past due	0	0
Commercial \| Political subdivisions \| Past Due 90+ Days
LOANS
Loans past due	0	0
Commercial \| Commercial Construction And Land
LOANS
Loans receivable	60,579	42,874
Commercial \| Commercial Construction And Land \| Current & Past Due Less than 30 Days
LOANS
Loans receivable	60,509	42,590
Commercial \| Commercial Construction And Land \| Past Due 30-89 Days
LOANS
Loans past due	70	284
Commercial \| Commercial Construction And Land \| Past Due 90+ Days
LOANS
Loans past due	0	0
Commercial \| Construction Loans
LOANS
Loans receivable	60,579	42,874
Commercial \| Loans secured by farm land
LOANS
Loans receivable	11,121	11,736
Commercial \| Loans secured by farm land \| Current & Past Due Less than 30 Days
LOANS
Loans receivable	11,010	11,419
Commercial \| Loans secured by farm land \| Past Due 30-89 Days
LOANS
Loans past due	0	95
Commercial \| Loans secured by farm land \| Past Due 90+ Days
LOANS
Loans past due	111	222
Commercial \| Multi-family (5 or more) residential
LOANS
Loans receivable	50,089	55,811
Commercial \| Multi-family (5 or more) residential \| Current & Past Due Less than 30 Days
LOANS
Loans receivable	48,532	53,860
Commercial \| Multi-family (5 or more) residential \| Past Due 30-89 Days
LOANS
Loans past due	0	1,951
Commercial \| Multi-family (5 or more) residential \| Past Due 90+ Days
LOANS
Loans past due	1,557	0
Commercial \| Agricultural loans
LOANS
Loans receivable	2,351	3,164
Commercial \| Agricultural loans \| Current & Past Due Less than 30 Days
LOANS
Loans receivable	2,279	3,091
Commercial \| Agricultural loans \| Past Due 30-89 Days
LOANS
Loans past due	7	2
Commercial \| Agricultural loans \| Past Due 90+ Days
LOANS
Loans past due	65	71
Commercial \| Other commercial loans
LOANS
Loans receivable	17,153	17,289
Commercial \| Other commercial loans \| Current & Past Due Less than 30 Days
LOANS
Loans receivable	17,153	17,289
Commercial \| Other commercial loans \| Past Due 30-89 Days
LOANS
Loans past due	0	0
Commercial \| Other commercial loans \| Past Due 90+ Days
LOANS
Loans past due	0	0
Residential mortgage
LOANS
Loans receivable	569,346	620,172
Residential mortgage \| Current & Past Due Less than 30 Days
LOANS
Loans receivable	560,847	609,576
Residential mortgage \| Past Due 30-89 Days
LOANS
Loans past due	5,333	6,071
Residential mortgage \| Past Due 90+ Days
LOANS
Loans past due	3,166	4,525
Residential mortgage \| Real estate loan
LOANS
Loans receivable	569,840
Residential mortgage \| Real estate loan \| first liens
LOANS
Loans receivable	483,629	532,947
Residential mortgage \| Real estate loan \| first liens \| Current & Past Due Less than 30 Days
LOANS
Loans receivable	475,637	523,191
Residential mortgage \| Real estate loan \| first liens \| Past Due 30-89 Days
LOANS
Loans past due	5,038	5,703
Residential mortgage \| Real estate loan \| first liens \| Past Due 90+ Days
LOANS
Loans past due	2,954	4,053
Residential mortgage \| Real estate loan \| junior liens
LOANS
Loans receivable	23,314	27,311
Residential mortgage \| Real estate loan \| junior liens \| Current & Past Due Less than 30 Days
LOANS
Loans receivable	23,229	27,009
Residential mortgage \| Real estate loan \| junior liens \| Past Due 30-89 Days
LOANS
Loans past due	16	111
Residential mortgage \| Real estate loan \| junior liens \| Past Due 90+ Days
LOANS
Loans past due	69	191
Residential mortgage \| Construction Loans
LOANS
Loans receivable	23,151	20,613
Residential mortgage \| Construction Loans \| Current & Past Due Less than 30 Days
LOANS
Loans receivable	23,151	20,457
Residential mortgage \| Construction Loans \| Past Due 30-89 Days
LOANS
Loans past due	0	156
Residential mortgage \| Construction Loans \| Past Due 90+ Days
LOANS
Loans past due	0	0
Residential mortgage \| Home equity lines of credit
LOANS
Loans receivable	39,252	39,301
Residential mortgage \| Home equity lines of credit \| Current & Past Due Less than 30 Days
LOANS
Loans receivable	38,830	38,919
Residential mortgage \| Home equity lines of credit \| Past Due 30-89 Days
LOANS
Loans past due	279	101
Residential mortgage \| Home equity lines of credit \| Past Due 90+ Days
LOANS
Loans past due	143	281
Consumer
LOANS
Loans receivable	17,132	16,286
Consumer \| Current & Past Due Less than 30 Days
LOANS
Loans receivable	17,001	16,063
Consumer \| Past Due 30-89 Days
LOANS
Loans past due	72	83
Consumer \| Past Due 90+ Days
LOANS
Loans past due	$ 59	$ 140