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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Nonaccrual loans (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	$ 15,663	$ 11,204
Nonaccrual with no Allowance for Credit Losses	15,404
Interest Income Not Recorded for Nonaccrual loans	673
Commercial/Agricultural Real Estate | Commercial real estate
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	11,359	5,736
Nonaccrual with no Allowance for Credit Losses	11,342
Interest Income Not Recorded for Nonaccrual loans	512
Commercial/Agricultural Real Estate | Agricultural real estate
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	1,712	2,742
Nonaccrual with no Allowance for Credit Losses	1,712
Interest Income Not Recorded for Nonaccrual loans	90
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	4	552
Nonaccrual with no Allowance for Credit Losses	4
Interest Income Not Recorded for Nonaccrual loans	0
C&I/Agricultural operating | Agricultural operating
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	1,436	890
Nonaccrual with no Allowance for Credit Losses	1,436
Interest Income Not Recorded for Nonaccrual loans	42
Residential Mortgage | Residential mortgage
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	1,029	1,253
Nonaccrual with no Allowance for Credit Losses	787
Interest Income Not Recorded for Nonaccrual loans	27
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	27	27
Nonaccrual with no Allowance for Credit Losses	27
Interest Income Not Recorded for Nonaccrual loans	1
Consumer Installment | Other consumer
Financing Receivable, Past Due [Line Items]
Total Nonaccrual Loans	2	$ 4
Nonaccrual with no Allowance for Credit Losses	2
Interest Income Not Recorded for Nonaccrual loans	$ 0

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