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Loans and Allowance for Loan Losses - Narrative (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 USD ($) loans | Mar. 31, 2023 USD ($) loans | Dec. 31, 2023 USD ($)
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Mortgage Loans in Process of Foreclosure, Amount | $ 1,200 |  | $ 1,000
Reversal of interest income on nonaccrual loans | 34 | $ 26 |
Nonaccrual loans, no allowance | 939 |  | 1,000
Collateral-dependent loans | 10,600 |  | 7,500
Restructured loans | 535 |  | 506
Accrued interest receivable on our loan portfolio | $ 21,500 |  | $ 21,300
Financing Receivable, Excluding Accrued Interest, Modified In Period, Number Of Loans Modified, Nonaccrual | loans | 3 |  |
Commercial Real Estate Loans |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
General Loan Term | 20 years |  |
Owner and nonowner-occupied real estate | $ 1,830,000 |  |
Loans secured by multi-family properties | 551,800 |  |
Loans secured by farmland | $ 28,000 |  |
Commercial loans | Extended Maturity |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Number of loans modified | loans | 0 |  |
Restructured loans |  | $ 179 |
Financing Receivable, Excluding Accrued Interest, Modified In Period, Number Of Loans Modified, Nonaccrual | loans |  | 1 |
1-4 Family Residential Real Estate Loans | Minimum |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
General Loan Term | 15 years |  |
1-4 Family Residential Real Estate Loans | Maximum |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
General Loan Term | 30 years |  |

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