LOANS, IMPAIRED LOANS (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, with No Related Allowance, Recorded Investment	$ 252	$ 380
With no related allowance recorded [Abstract]
Recorded Investment	12,727	26,840
Unpaid Principal Balance	14,679	29,445
Average Recorded Investment	17,610	22,466	$ 18,744
Interest Income Recognized	1,643	1,509	1,771
With an allowance recorded [Abstract]
Recorded Investment	3,134	1,102
Unpaid Principal Balance	3,286	1,126
Related Allowance	295	62
Average Recorded Investment	3,308	1,039	3,689
Interest Income Recognized	115	66	85
Total [Abstract]
Recorded Investment	15,861	27,942
Unpaid Principal Balance	17,965	30,571
Average Recorded Investment	20,918	23,505	22,433
Interest Income Recognized	1,758	1,575	1,856
Interest income recognized on a cash basis	42	89	28
Financing Receivable, Modifications, with Related Allowance, Recorded Investment	89	126
Commercial & industrial
With no related allowance recorded [Abstract]
Recorded Investment	711	926
Unpaid Principal Balance	1,253	1,457
Average Recorded Investment	836	945	685
Interest Income Recognized	83	71	88
With an allowance recorded [Abstract]
Recorded Investment	230	264
Unpaid Principal Balance	235	269
Related Allowance	6	10
Average Recorded Investment	247	279	311
Interest Income Recognized	15	17	18
Total [Abstract]
Recorded Investment	941	1,190
Unpaid Principal Balance	1,488	1,726
Average Recorded Investment	1,083	1,224	996
Interest Income Recognized	98	88	106
Commercial, secured by real estate
With no related allowance recorded [Abstract]
Recorded Investment	8,625	21,266
Unpaid Principal Balance	9,373	22,451
Average Recorded Investment	12,748	17,353	14,113
Interest Income Recognized	1,213	1,136	1,068
With an allowance recorded [Abstract]
Recorded Investment	2,338	150
Unpaid Principal Balance	2,485	150
Related Allowance	272	3
Average Recorded Investment	2,513	153	2,739
Interest Income Recognized	64	11	45
Total [Abstract]
Recorded Investment	10,963	21,416
Unpaid Principal Balance	11,858	22,601
Average Recorded Investment	15,261	17,506	16,852
Interest Income Recognized	1,277	1,147	1,113
Residential real estate
With no related allowance recorded [Abstract]
Recorded Investment	3,118	4,122
Unpaid Principal Balance	3,651	4,872
Average Recorded Investment	3,704	3,580	3,216
Interest Income Recognized	311	258	546
With an allowance recorded [Abstract]
Recorded Investment	549	665
Unpaid Principal Balance	549	684
Related Allowance	17	49
Average Recorded Investment	528	583	596
Interest Income Recognized	35	37	19
Total [Abstract]
Recorded Investment	3,667	4,787
Unpaid Principal Balance	4,200	5,556
Average Recorded Investment	4,232	4,163	3,812
Interest Income Recognized	346	295	565
Consumer
With no related allowance recorded [Abstract]
Recorded Investment	10	13
Unpaid Principal Balance	10	13
Average Recorded Investment	12	32	20
Interest Income Recognized	1	3	2
With an allowance recorded [Abstract]
Recorded Investment	17	23
Unpaid Principal Balance	17	23
Related Allowance	0	0
Average Recorded Investment	20	24	43
Interest Income Recognized	1	1	3
Total [Abstract]
Recorded Investment	27	36
Unpaid Principal Balance	27	36
Average Recorded Investment	32	56	63
Interest Income Recognized	2	4	5
Agricultural
With no related allowance recorded [Abstract]
Recorded Investment	0	177
Unpaid Principal Balance	0	177
Average Recorded Investment	0	177	269
Interest Income Recognized	0	0	12
With an allowance recorded [Abstract]
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Related Allowance	0	0
Average Recorded Investment	0	0	0
Interest Income Recognized	0	0	0
Total [Abstract]
Recorded Investment	0	177
Unpaid Principal Balance	0	177
Average Recorded Investment	0	177	269
Interest Income Recognized	0	0	12
Other
With no related allowance recorded [Abstract]
Recorded Investment	263	336
Unpaid Principal Balance	392	475
Average Recorded Investment	310	379
Interest Income Recognized	35	41
With an allowance recorded [Abstract]
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Related Allowance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Total [Abstract]
Recorded Investment	263	336
Unpaid Principal Balance	392	475
Average Recorded Investment	310	379	441
Interest Income Recognized	$ 35	$ 41	$ 55

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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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