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Loans and Allowance for Credit Losses - Aging Analysis of Loans by Loan Category (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |  |
Loans |  | $ 1,410,653 | $ 1,189,782
Loans, 90 Days Past Due and Accruing |  | 0 | 0
Agricultural [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans |  | 49,210 | 64,159
Loans, 90 Days Past Due and Accruing |  | 0 | 0
Commercial and Industrial [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans |  | 229,915 | 210,210
Loans, 90 Days Past Due and Accruing |  | 0 | 0
Consumer Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans |  | 36,541 | 39,808
Loans, 90 Days Past Due and Accruing |  | 0 | 0
Commercial Real Estate Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans |  | 786,921 | 630,953
Loans, 90 Days Past Due and Accruing |  | 0 | 0
Construction Real Estate [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans |  | 20,936 | 14,736
Loans, 90 Days Past Due and Accruing |  | 0 | 0
Residential Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans |  | 267,730 | 229,916
Loans, 90 Days Past Due and Accruing |  | 0 | 0
Loans To Other Financial Institutions [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans |  | 19,400 | 0
Financial Asset, 30 to 59 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 959 | 721
Financial Asset, 30 to 59 Days Past Due [Member] | Agricultural [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 0 | 0
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial and Industrial [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 0 | 171
Financial Asset, 30 to 59 Days Past Due [Member] | Consumer Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 31 | 7
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 173 | 0
Financial Asset, 30 to 59 Days Past Due [Member] | Construction Real Estate [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 0 | 0
Financial Asset, 30 to 59 Days Past Due [Member] | Residential Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 755 | 0
Financial Asset, 60 to 89 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 551 | 178
Financial Asset, 60 to 89 Days Past Due [Member] | Agricultural [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 0 | 0
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial and Industrial [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 0 | 0
Financial Asset, 60 to 89 Days Past Due [Member] | Consumer Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 2 | 39
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 0 | 0
Financial Asset, 60 to 89 Days Past Due [Member] | Construction Real Estate [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 0 | 0
Financial Asset, 60 to 89 Days Past Due [Member] | Residential Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 549 | 682
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 871 | 842
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Agricultural [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 0 | 0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial and Industrial [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 1 | 0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 0 | 0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 0 | 0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Construction Real Estate [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 0 | 0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Residential Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 870 | 842
Financial Asset, Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 2,381 | 1,741
Financial Asset, Past Due [Member] | Agricultural [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 0 | 0
Financial Asset, Past Due [Member] | Commercial and Industrial [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 1 | 171
Financial Asset, Past Due [Member] | Consumer Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 33 | 46
Financial Asset, Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 173 | 0
Financial Asset, Past Due [Member] | Construction Real Estate [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 0 | 0
Financial Asset, Past Due [Member] | Residential Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | [1] | 2,174 | 1,524
Financial Asset, Not Past Due [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans |  | 1,408,272 | 1,188,041
Financial Asset, Not Past Due [Member] | Agricultural [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans |  | 49,210 | 64,159
Financial Asset, Not Past Due [Member] | Commercial and Industrial [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans |  | 229,914 | 210,039
Financial Asset, Not Past Due [Member] | Consumer Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans |  | 36,508 | 39,762
Financial Asset, Not Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans |  | 786,748 | 630,953
Financial Asset, Not Past Due [Member] | Construction Real Estate [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans |  | 20,936 | 14,736
Financial Asset, Not Past Due [Member] | Residential Portfolio Segment [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans |  | 265,556 | $ 228,392
Financial Asset, Not Past Due [Member] | Loans To Other Financial Institutions [Member] |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans |  | $ 19,400 |
[1] | Includes nonaccrual loans

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