LOANS AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Nonaccrual loans (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	$ 13,456	$ 11,204
Nonaccrual with no Allowance for Credit Losses	13,204
Interest Income Not Recorded for Nonaccrual loans	947
Commercial/Agricultural Real Estate \| Commercial real estate
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	10,570	5,736
Nonaccrual with no Allowance for Credit Losses	10,556
Interest Income Not Recorded for Nonaccrual loans	723
Commercial/Agricultural Real Estate \| Agricultural real estate
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	469	2,742
Nonaccrual with no Allowance for Credit Losses	469
Interest Income Not Recorded for Nonaccrual loans	70
Commercial/Agricultural Real Estate \| Multi-family real estate
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	0	0
Nonaccrual with no Allowance for Credit Losses	0
Interest Income Not Recorded for Nonaccrual loans	0
Commercial/Agricultural Real Estate \| Construction and land development
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	94	0
Nonaccrual with no Allowance for Credit Losses	94
Interest Income Not Recorded for Nonaccrual loans	1
C&I/Agricultural operating \| Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	0	552
Nonaccrual with no Allowance for Credit Losses	0
Interest Income Not Recorded for Nonaccrual loans	0
C&I/Agricultural operating \| Agricultural operating
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	1,373	890
Nonaccrual with no Allowance for Credit Losses	1,373
Interest Income Not Recorded for Nonaccrual loans	108
Residential Mortgage \| Residential mortgage
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	923	1,253
Nonaccrual with no Allowance for Credit Losses	685
Interest Income Not Recorded for Nonaccrual loans	44
Residential Mortgage \| Purchased HELOC loans
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	0	0
Nonaccrual with no Allowance for Credit Losses	0
Interest Income Not Recorded for Nonaccrual loans	0
Consumer Installment \| Originated indirect paper
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	26	27
Nonaccrual with no Allowance for Credit Losses	26
Interest Income Not Recorded for Nonaccrual loans	1
Consumer Installment \| Other consumer
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	1	$ 4
Nonaccrual with no Allowance for Credit Losses	1
Interest Income Not Recorded for Nonaccrual loans	$ 0

Amortized cost excluding accrued interest, of financing receivable on nonaccrual status. Excludes net investment in lease.

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