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LOANS, ALLOWANCE FOR LOAN LOSSES AND IMPAIRED LOANS - Troubled Debt Restructurings on Financing Receivables (Details) | 12 Months Ended
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Dec. 31, 2022 USD ($) contract troubled_debt_restructuring | Dec. 31, 2021 USD ($) contract troubled_debt_restructuring
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Contracts | troubled_debt_restructuring | 23 | 15
Pre-Modification Outstanding Recorded Investment | $ 6,135,000 | $ 1,133,000
Post-Modification Outstanding Recorded Investment | 6,135,000 | 1,133,000
Specific Reserve | $ 0 | $ 0
Commercial/Agricultural real estate: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Contracts | contract | 7 | 3
Pre-Modification Outstanding Recorded Investment | $ 3,205,000 | $ 120,000
Post-Modification Outstanding Recorded Investment | 3,205,000 | 120,000
Specific Reserve | $ 0 | $ 0
C&I/Agricultural operating: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Contracts | contract | 5 | 1
Pre-Modification Outstanding Recorded Investment | $ 2,160,000 | $ 240,000
Post-Modification Outstanding Recorded Investment | 2,160,000 | 240,000
Specific Reserve | $ 0 | $ 0
Residential mortgage: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Contracts | contract | 11 | 8
Pre-Modification Outstanding Recorded Investment | $ 770,000 | $ 749,000
Post-Modification Outstanding Recorded Investment | 770,000 | 749,000
Specific Reserve | $ 0 | $ 0
Consumer installment: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Contracts | contract | 0 | 3
Pre-Modification Outstanding Recorded Investment | $ 0 | $ 24,000
Post-Modification Outstanding Recorded Investment | 0 | 24,000
Specific Reserve | 0 | 0
Modified Rate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loan restructuring | 2,781,000 | 297,000
Modified Rate | Commercial/Agricultural real estate: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loan restructuring | 1,241,000 | 39,000
Modified Rate | C&I/Agricultural operating: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loan restructuring | 1,424,000 | 0
Modified Rate | Residential mortgage: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loan restructuring | 116,000 | 252,000
Modified Rate | Consumer installment: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loan restructuring | 0 | 6,000
Modified Payment |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loan restructuring | 147,000 | 376,000
Modified Payment | Commercial/Agricultural real estate: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loan restructuring | 0 | 81,000
Modified Payment | C&I/Agricultural operating: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loan restructuring | 0 | 0
Modified Payment | Residential mortgage: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loan restructuring | 147,000 | 295,000
Modified Payment | Consumer installment: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loan restructuring | 0 | 0
Modified Under- writing |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loan restructuring | 3,207,000 | 460,000
Modified Under- writing | Commercial/Agricultural real estate: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loan restructuring | 1,964,000 | 0
Modified Under- writing | C&I/Agricultural operating: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loan restructuring | 736,000 | 240,000
Modified Under- writing | Residential mortgage: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loan restructuring | 507,000 | 202,000
Modified Under- writing | Consumer installment: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loan restructuring | 0 | 18,000
Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loan restructuring | 0 | 0
Other | Commercial/Agricultural real estate: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loan restructuring | 0 | 0
Other | C&I/Agricultural operating: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loan restructuring | 0 | 0
Other | Residential mortgage: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loan restructuring | 0 | 0
Other | Consumer installment: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loan restructuring | $ 0 | $ 0

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