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Loans and Allowance for Credit Losses - Summary of Impaired Loans by Loan Category (Details) - USD ($)
$ in Thousands
3 Months Ended
Dec. 31, 2022
Mar. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Recorded Investment with no related allowance recorded $ 550 $ 406
Recorded Investment with an allowance recorded 2,296 4,534
Related Allowance 153 547
Recorded Investment 2,846 4,940
Interest Income Recognized with no related allowance recorded 1 1
Interest Income Recognized with an allowance recorded 122 64
Interest Income Recognized 123 65
Agricultural [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Recorded Investment with no related allowance recorded 0 314
Recorded Investment with an allowance recorded 23 2,228
Related Allowance 2 253
Recorded Investment 23 2,542
Interest Income Recognized with no related allowance recorded 0 0
Interest Income Recognized with an allowance recorded 2 42
Interest Income Recognized 2 42
Commercial and Industrial [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Recorded Investment with no related allowance recorded 0 92
Recorded Investment with an allowance recorded 177 264
Related Allowance 14 116
Recorded Investment 177 356
Interest Income Recognized with no related allowance recorded 0 1
Interest Income Recognized with an allowance recorded 13 2
Interest Income Recognized 13 3
Consumer Portfolio Segment [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Recorded Investment with no related allowance recorded 0 0
Recorded Investment with an allowance recorded 7 32
Related Allowance 1 3
Recorded Investment 7 32
Interest Income Recognized with no related allowance recorded 0 0
Interest Income Recognized with an allowance recorded 1 0
Interest Income Recognized 1 0
Construction Real Estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Recorded Investment with no related allowance recorded 0 0
Recorded Investment with an allowance recorded 0 0
Related Allowance 0 0
Recorded Investment 0 0
Interest Income Recognized with no related allowance recorded 0 0
Interest Income Recognized with an allowance recorded 0 0
Interest Income Recognized 0 0
Commercial Real Estate Portfolio Segment [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Recorded Investment with no related allowance recorded 0 0
Recorded Investment with an allowance recorded 165 157
Related Allowance 5 8
Recorded Investment 165 157
Interest Income Recognized with no related allowance recorded 0 0
Interest Income Recognized with an allowance recorded 13 3
Interest Income Recognized 13 3
Residential Portfolio Segment [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Recorded Investment with no related allowance recorded 550 0
Recorded Investment with an allowance recorded 1,924 1,853
Related Allowance 131 167
Recorded Investment 2,474 1,853
Interest Income Recognized with no related allowance recorded 1 0
Interest Income Recognized with an allowance recorded 93 17
Interest Income Recognized $ 94 $ 17