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Loans and Allowance for Credit Losses - Aging Analysis of Loans by Loan Category (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | $ 2,909,928 |  | $ 1,545,640 |
Loans, 90 Days Past Due and Accruing | 0 |  | 0 |
Agricultural [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 51,183 |  | 48,221 |
Loans, 90 Days Past Due and Accruing | 0 |  | 0 |
Commercial and Industrial [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 352,876 |  | 228,256 |
Loans, 90 Days Past Due and Accruing | 0 |  | 0 |
Consumer Portfolio Segment [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 27,328 |  | 29,412 |
Loans, 90 Days Past Due and Accruing | 0 |  | 0 |
Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 1,728,774 |  | 901,130 |
Loans, 90 Days Past Due and Accruing | 0 |  | 0 |
Construction Real Estate [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 18,441 |  | 17,042 |
Loans, 90 Days Past Due and Accruing | 0 |  | 0 |
Residential Portfolio Segment [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 728,843 |  | 281,701 |
Loans, 90 Days Past Due and Accruing | 0 |  | 0 |
Loans To Other Financial Institutions [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 2,483 |  | 39,878 |
Loans, 90 Days Past Due and Accruing | 0 |  | 0 |
Financial Asset, 30 to 59 Days Past Due [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 15,132 | [1] | 5,635 | [2]
Financial Asset, 30 to 59 Days Past Due [Member] | Agricultural [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 0 | [1] | 0 | [2]
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial and Industrial [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 1,029 | [1] | 0 | [2]
Financial Asset, 30 to 59 Days Past Due [Member] | Consumer Portfolio Segment [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 33 | [1] | 52 | [2]
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 7,982 | [1] | 23 | [2]
Financial Asset, 30 to 59 Days Past Due [Member] | Construction Real Estate [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 0 | [1] | 694 | [2]
Financial Asset, 30 to 59 Days Past Due [Member] | Residential Portfolio Segment [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 6,088 | [1] | 4,866 | [2]
Financial Asset, 30 to 59 Days Past Due [Member] | Loans To Other Financial Institutions [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 0 | [1] | 0 | [2]
Financial Asset, 60 to 89 Days Past Due [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 229 | [1] | 901 | [2]
Financial Asset, 60 to 89 Days Past Due [Member] | Agricultural [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 0 | [1] | 0 | [2]
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial and Industrial [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 0 | [1] | 49 | [2]
Financial Asset, 60 to 89 Days Past Due [Member] | Consumer Portfolio Segment [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 94 | [1] | 87 | [2]
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 0 | [1] | 0 | [2]
Financial Asset, 60 to 89 Days Past Due [Member] | Construction Real Estate [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 0 | [1] | 0 | [2]
Financial Asset, 60 to 89 Days Past Due [Member] | Residential Portfolio Segment [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 135 | [1] | 765 | [2]
Financial Asset, 60 to 89 Days Past Due [Member] | Loans To Other Financial Institutions [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 0 | [1] | 0 | [2]
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 10,561 | [1] | 2,086 | [2]
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Agricultural [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 0 | [1] | 0 | [2]
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial and Industrial [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 5,591 | [1] | 0 | [2]
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Portfolio Segment [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 5 | [1] | 7 | [2]
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 | 1,077 | [1] | 0 | [2]
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Construction Real Estate [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 110 | [1] | 229 | [2]
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Residential Portfolio Segment [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 3,778 | [1] | 1,850 | [2]
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Loans To Other Financial Institutions [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 0 | [1] | 0 | [2]
Financial Asset, Past Due [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 25,922 | [1] | 8,622 | [2]
Financial Asset, Past Due [Member] | Agricultural [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 0 | [1] | 0 | [2]
Financial Asset, Past Due [Member] | Commercial and Industrial [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 6,620 | [1] | 49 | [2]
Financial Asset, Past Due [Member] | Consumer Portfolio Segment [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 132 | [1] | 146 | [2]
Financial Asset, Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 9,059 | [1] | 23 | [2]
Financial Asset, Past Due [Member] | Construction Real Estate [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 110 | [1] | 923 | [2]
Financial Asset, Past Due [Member] | Residential Portfolio Segment [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 10,001 | [1] | 7,481 | [2]
Financial Asset, Past Due [Member] | Loans To Other Financial Institutions [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 0 | [1] | 0 | [2]
Financial Asset, Not Past Due [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 2,884,006 |  | 1,537,018 |
Financial Asset, Not Past Due [Member] | Agricultural [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 51,183 |  | 48,221 |
Financial Asset, Not Past Due [Member] | Commercial and Industrial [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 346,256 |  | 228,207 |
Financial Asset, Not Past Due [Member] | Consumer Portfolio Segment [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 27,196 |  | 29,266 |
Financial Asset, Not Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 1,719,715 |  | 901,107 |
Financial Asset, Not Past Due [Member] | Construction Real Estate [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 18,331 |  | 16,119 |
Financial Asset, Not Past Due [Member] | Residential Portfolio Segment [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | 718,842 |  | 274,220 |
Financial Asset, Not Past Due [Member] | Loans To Other Financial Institutions [Member] |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |
Loans | $ 2,483 |  | $ 39,878 |
[1] | Includes nonaccrual loans.
[2] | Includes nonaccrual loans.

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