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Loans - Gross Charge-Offs (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Current year | $ 0 |  | $ 1,810
Prior year | 27 |  | 2,301
Two years prior | 25 |  | 617
Three years prior | 13 |  | 310
Four years prior | 0 |  | 725
Prior | 634 |  | 12,412
Revolving Loans | 211 |  | 865
Total Charge-offs | 910 | $ 6,457 | 19,040
Commercial, financial, agricultural |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Current year | 0 |  | 898
Prior year | 0 |  | 1,909
Two years prior | 9 |  | 235
Three years prior | 0 |  | 131
Four years prior | 0 |  | 635
Prior | 129 |  | 4,165
Revolving Loans | 211 |  | 865
Total Charge-offs | 349 | 529 | 8,838
Lease financing |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Current year |  |  | 883
Prior year |  |  | 273
Two years prior |  |  | 248
Three years prior |  |  | 72
Four years prior |  |  | 48
Prior |  |  | 0
Revolving Loans |  |  | 0
Total Charge-offs | 0 | 0 | 1,524
Real estate – construction: |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Total Charge-offs | 0 | 0 |
Real estate – construction: | Residential |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Current year |  |  | 0
Prior year |  |  | 57
Two years prior |  |  | 0
Three years prior |  |  | 0
Four years prior |  |  | 0
Prior |  |  | 0
Revolving Loans |  |  | 0
Total Charge-offs |  |  | 57
Real estate – 1-4 family mortgage: |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Current year | 0 |  | 0
Prior year | 0 |  | 17
Two years prior | 0 |  | 91
Three years prior | 13 |  | 72
Four years prior | 0 |  | 35
Prior | 69 |  | 202
Revolving Loans | 0 |  | 0
Total Charge-offs | 82 | 3 | 417
Real estate – 1-4 family mortgage: | Primary |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Current year | 0 |  | 0
Prior year | 0 |  | 17
Two years prior | 0 |  | 0
Three years prior | 13 |  | 0
Four years prior | 0 |  | 0
Prior | 0 |  | 92
Revolving Loans | 0 |  | 0
Total Charge-offs | 13 |  | 109
Real estate – 1-4 family mortgage: | Home equity |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Current year | 0 |  | 0
Prior year | 0 |  | 0
Two years prior | 0 |  | 0
Three years prior | 0 |  | 0
Four years prior | 0 |  | 25
Prior | 24 |  | 90
Revolving Loans | 0 |  | 0
Total Charge-offs | 24 |  | 115
Real estate – 1-4 family mortgage: | Rental/investment |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Current year | 0 |  | 0
Prior year | 0 |  | 0
Two years prior | 0 |  | 91
Three years prior | 0 |  | 72
Four years prior | 0 |  | 10
Prior | 45 |  | 20
Revolving Loans | 0 |  | 0
Total Charge-offs | 45 |  | 193
Real Estate - Commercial Mortgage |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Current year |  |  | 0
Prior year |  |  | 0
Two years prior |  |  | 0
Three years prior |  |  | 0
Four years prior |  |  | 0
Prior |  |  | 5,568
Revolving Loans |  |  | 0
Total Charge-offs | 0 | 5,115 | 5,568
Real Estate - Commercial Mortgage | Owner-occupied |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Current year |  |  | 0
Prior year |  |  | 0
Two years prior |  |  | 0
Three years prior |  |  | 0
Four years prior |  |  | 0
Prior |  |  | 582
Revolving Loans |  |  | 0
Total Charge-offs |  |  | 582
Real Estate - Commercial Mortgage | Non-owner occupied |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Current year |  |  | 0
Prior year |  |  | 0
Two years prior |  |  | 0
Three years prior |  |  | 0
Four years prior |  |  | 0
Prior |  |  | 4,986
Revolving Loans |  |  | 0
Total Charge-offs |  |  | 4,986
Installment loans to individuals |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] |  |  |
Current year | 0 |  | 29
Prior year | 27 |  | 45
Two years prior | 16 |  | 43
Three years prior | 0 |  | 35
Four years prior | 0 |  | 7
Prior | 436 |  | 2,477
Revolving Loans | 0 |  | 0
Total Charge-offs | $ 479 | $ 810 | $ 2,636

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