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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Without an Allowance	$ 7,602	$ 12,939	$ 15,404
Allowance Allocation	8,352	13,184	15,663
Collateralized Loan Obligations
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	22,980	28,622
Without an Allowance	20,732	24,332
With an Allowance	2,248	4,290
Allowance Allocation	279	791
Collateralized Loan Obligations | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	19,556	25,149
Collateralized Loan Obligations | Other Assets
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	3,424	3,473
Commercial/Agricultural Real Estate | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Without an Allowance	5,093	10,347	11,342
Allowance Allocation	5,350	10,359	11,359
Commercial/Agricultural Real Estate | Commercial real estate | Collateralized Loan Obligations
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	9,932	15,086
Without an Allowance	8,459	11,350
With an Allowance	1,473	3,736
Allowance Allocation	213	703
Commercial/Agricultural Real Estate | Commercial real estate | Collateralized Loan Obligations | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	9,932	15,086
Commercial/Agricultural Real Estate | Commercial real estate | Collateralized Loan Obligations | Other Assets
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	0	0
Commercial/Agricultural Real Estate | Agricultural real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Without an Allowance	382	391	1,712
Allowance Allocation	382	391	1,712
Commercial/Agricultural Real Estate | Agricultural real estate | Collateralized Loan Obligations
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	6,452	6,605
Without an Allowance	6,452	6,605
With an Allowance	0	0
Allowance Allocation	0	0
Commercial/Agricultural Real Estate | Agricultural real estate | Collateralized Loan Obligations | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	6,452	6,605
Commercial/Agricultural Real Estate | Agricultural real estate | Collateralized Loan Obligations | Other Assets
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	0	0
Commercial/Agricultural Real Estate | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Without an Allowance		54	94
Allowance Allocation		54	94
Commercial/Agricultural Real Estate | Construction and land development | Collateralized Loan Obligations
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	108	313
Without an Allowance	108	313
With an Allowance	0	0
Allowance Allocation	0	0
Commercial/Agricultural Real Estate | Construction and land development | Collateralized Loan Obligations | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	108	313
Commercial/Agricultural Real Estate | Construction and land development | Collateralized Loan Obligations | Other Assets
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	0	0
C&I/Agricultural operating: | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Without an Allowance	147		4
Allowance Allocation	422		4
C&I/Agricultural operating: | Commercial and industrial | Collateralized Loan Obligations
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	2,338	2,219
Without an Allowance	2,062	2,219
With an Allowance	276	0
Allowance Allocation	12	0
C&I/Agricultural operating: | Commercial and industrial | Collateralized Loan Obligations | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	0	0
C&I/Agricultural operating: | Commercial and industrial | Collateralized Loan Obligations | Other Assets
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	2,338	2,219
C&I/Agricultural operating: | Agricultural operating
Accounts, Notes, Loans and Financing Receivable [Line Items]
Without an Allowance	1,017	1,180	1,436
Allowance Allocation	1,017	1,180	1,436
C&I/Agricultural operating: | Agricultural operating | Collateralized Loan Obligations
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	1,017	1,181
Without an Allowance	1,017	1,181
With an Allowance	0	0
Allowance Allocation	0	0
C&I/Agricultural operating: | Agricultural operating | Collateralized Loan Obligations | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	0	0
C&I/Agricultural operating: | Agricultural operating | Collateralized Loan Obligations | Other Assets
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	1,017	1,181
Residential mortgage: | Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Without an Allowance	810	934	787
Allowance Allocation	1,028	1,167	1,029
Residential mortgage: | Residential mortgage | Collateralized Loan Obligations
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	3,064	3,145
Without an Allowance	2,565	2,591
With an Allowance	499	554
Allowance Allocation	54	88
Residential mortgage: | Residential mortgage | Collateralized Loan Obligations | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	3,064	3,145
Residential mortgage: | Residential mortgage | Collateralized Loan Obligations | Other Assets
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	0	0
Consumer installment: | Originated indirect paper
Accounts, Notes, Loans and Financing Receivable [Line Items]
Without an Allowance	35	15	27
Allowance Allocation	35	15	27
Consumer installment: | Originated indirect paper | Collateralized Loan Obligations
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	61	44
Without an Allowance	61	44
With an Allowance	0	0
Allowance Allocation	0	0
Consumer installment: | Originated indirect paper | Collateralized Loan Obligations | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	0	0
Consumer installment: | Originated indirect paper | Collateralized Loan Obligations | Other Assets
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	61	44
Consumer installment: | Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Without an Allowance	1	18	2
Allowance Allocation	1	18	$ 2
Consumer installment: | Other consumer | Collateralized Loan Obligations
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	8	29
Without an Allowance	8	29
With an Allowance	0	0
Allowance Allocation	0	0
Consumer installment: | Other consumer | Collateralized Loan Obligations | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	0	0
Consumer installment: | Other consumer | Collateralized Loan Obligations | Other Assets
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	$ 8	$ 29

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-Topic 310
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-Name Accounting Standards Codification
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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