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LOANS, ALLOWANCE FOR LOAN LOSSES AND IMPAIRED LOANS - Impaired Financing Receivables (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Bank impaired loans
With no related allowance recorded, Recorded investment	$ 19,076	$ 25,151
With an allowance recorded, Recorded investment	7,747	6,589
Recorded investment, Total	26,823	31,740
With no related allowance recorded, unpaid principal balance	19,172	25,804
With an allowance recorded, unpaid principal balance	7,747	6,589
Unpaid principal balance, Total	26,919	32,393
Impaired Financing Receivable, Related Allowance	826	1,009
With no related allowance recorded, Average recorded investment	24,735	31,656
With an allowance recorded, Average recorded investment	6,601	5,372
Average recorded investment, Total	31,336	37,028
With no related allowance recorded, Interest income recognized	1,030	1,511
With an allowance recorded, Interest income recognized	388	163
Interest income recognized, Total	1,418	1,674
Commercial/Agricultural real estate:
Bank impaired loans
With no related allowance recorded, Recorded investment	9,741	15,521
With an allowance recorded, Recorded investment	7,108	5,887
Recorded investment, Total	16,849	21,408
With no related allowance recorded, unpaid principal balance	9,766	15,905
With an allowance recorded, unpaid principal balance	7,108	5,887
Unpaid principal balance, Total	16,874	21,792
Impaired Financing Receivable, Related Allowance	519	797
With no related allowance recorded, Average recorded investment	13,657	19,412
With an allowance recorded, Average recorded investment	6,028	4,089
Average recorded investment, Total	19,685	23,501
With no related allowance recorded, Interest income recognized	549	964
With an allowance recorded, Interest income recognized	273	62
Interest income recognized, Total	822	1,026
C&I/Agricultural operating:
Bank impaired loans
With no related allowance recorded, Recorded investment	2,744	3,153
With an allowance recorded, Recorded investment	538	0
Recorded investment, Total	3,282	3,153
With no related allowance recorded, unpaid principal balance	2,754	3,337
With an allowance recorded, unpaid principal balance	538	0
Unpaid principal balance, Total	3,292	3,337
Impaired Financing Receivable, Related Allowance	249	99
With no related allowance recorded, Average recorded investment	4,467	4,622
With an allowance recorded, Average recorded investment	273	391
Average recorded investment, Total	4,741	5,013
With no related allowance recorded, Interest income recognized	200	146
With an allowance recorded, Interest income recognized	48	84
Interest income recognized, Total	248	230
Residential mortgage:
Bank impaired loans
With no related allowance recorded, Recorded investment	5,846	6,221
With an allowance recorded, Recorded investment	91	701
Recorded investment, Total	5,937	6,922
With no related allowance recorded, unpaid principal balance	5,907	6,306
With an allowance recorded, unpaid principal balance	91	701
Unpaid principal balance, Total	5,998	7,007
Impaired Financing Receivable, Related Allowance	48	113
With no related allowance recorded, Average recorded investment	6,304	7,316
With an allowance recorded, Average recorded investment	298	890
Average recorded investment, Total	6,603	8,206
With no related allowance recorded, Interest income recognized	276	316
With an allowance recorded, Interest income recognized	65	17
Interest income recognized, Total	341	333
Consumer installment:
Bank impaired loans
With no related allowance recorded, Recorded investment	745	256
With an allowance recorded, Recorded investment	10	1
Recorded investment, Total	755	257
With no related allowance recorded, unpaid principal balance	745	256
With an allowance recorded, unpaid principal balance	10	1
Unpaid principal balance, Total	755	257
Impaired Financing Receivable, Related Allowance	10	0
With no related allowance recorded, Average recorded investment	307	306
With an allowance recorded, Average recorded investment	2	2
Average recorded investment, Total	310	308
With no related allowance recorded, Interest income recognized	5	85
With an allowance recorded, Interest income recognized	2	0
Interest income recognized, Total	$ 7	$ 85

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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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