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Loans and Allowance for Credit Losses - Allowance for Credit Losses and Balances in Loan Portfolio (Details) - USD ($) $ in Thousands |  |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | ---
Sep. 30, 2025 | Mar. 01, 2025 | Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Beginning balance |  |  | $ 34,798 | $ 16,152 | $ 16,552 | $ 15,685 |
Acquisition related allowance for credit loss (PCD) | $ 4,170 | $ 4,924 |  |  | 4,924 |  |
Charge-offs |  |  | (378) | (189) | (1,040) | (640) |
Recoveries |  |  | 134 | 102 | 306 | 345 |
Provision |  |  | 200 | 425 | 14,013 | 1,100 |
Ending balance | 34,754 |  | 34,754 | 16,490 | 34,754 | 16,490 |
Individually evaluated for credit loss | 3,591 |  | 3,591 | 88 | 3,591 | 88 |
Collectively evaluated for credit loss | 31,163 |  | 31,163 | 16,402 | 31,163 | 16,402 |
Individually evaluated for impairment | 15,632 |  | 15,632 |  | 15,632 |  |
Collectively evaluated for impairment | 2,894,296 |  | 2,894,296 |  | 2,894,296 |  |
Loans | 2,909,928 |  | 2,909,928 |  | 2,909,928 |  | $ 1,545,640
Agricultural [Member] |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Beginning balance |  |  | 219 | 112 | 90 | 94 |
Acquisition related allowance for credit loss (PCD) | 2 | 2 |  |  | 2 |  |
Charge-offs |  |  | 0 | 0 | 0 | 0 |
Recoveries |  |  | 0 | 0 | 0 | 0 |
Provision |  |  | 14 | (2) | 141 | 16 |
Ending balance | 233 |  | 233 | 110 | 233 | 110 |
Individually evaluated for credit loss | 0 |  | 0 | 1 | 0 | 1 |
Collectively evaluated for credit loss | 233 |  | 233 | 109 | 233 | 109 |
Individually evaluated for impairment | 5 |  | 5 |  | 5 |  |
Collectively evaluated for impairment | 51,178 |  | 51,178 |  | 51,178 |  |
Loans | 51,183 |  | 51,183 |  | 51,183 |  | 48,221
Commercial and Industrial [Member] |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Beginning balance |  |  | 5,240 | 2,161 | 2,260 | 2,216 |
Acquisition related allowance for credit loss (PCD) | 2,934 | 2,960 |  |  | 2,963 |  |
Charge-offs |  |  | 0 | 0 | (9) | (1) |
Recoveries |  |  | 2 | 2 | 8 | 13 |
Provision |  |  | 1,055 | 307 | 1,075 | 242 |
Ending balance | 6,297 |  | 6,297 | 2,470 | 6,297 | 2,470 |
Individually evaluated for credit loss | 2,916 |  | 2,916 | 7 | 2,916 | 7 |
Collectively evaluated for credit loss | 3,382 |  | 3,382 | 2,463 | 3,382 | 2,463 |
Individually evaluated for impairment | 8,176 |  | 8,176 |  | 8,176 |  |
Collectively evaluated for impairment | 344,700 |  | 344,700 |  | 344,700 |  |
Loans | 352,876 |  | 352,876 |  | 352,876 |  | 228,256
Consumer Portfolio Segment [Member] |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Beginning balance |  |  | 772 | 795 | 733 | 823 |
Acquisition related allowance for credit loss (PCD) | 0 | $ 0 |  |  | 0 |  |
Charge-offs |  |  | (193) | (166) | (586) | (616) |
Recoveries |  |  | 131 | 96 | 273 | 321 |
Provision |  |  | 26 | 36 | 316 | 233 |
Ending balance | 736 |  | 736 | 761 | 736 | 761 |
Individually evaluated for credit loss | 0 |  | 0 | 1 | 0 | 1 |
Collectively evaluated for credit loss | 736 |  | 736 | 760 | 736 | 760 |
Individually evaluated for impairment | 1 |  | 1 |  | 1 |  |
Collectively evaluated for impairment | 27,327 |  | 27,327 |  | 27,327 |  |
Loans | 27,328 |  | 27,328 |  | 27,328 |  | 29,412
Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Beginning balance |  |  | 18,311 | 9,360 | 9,460 | 8,820 |
Acquisition related allowance for credit loss (PCD) |  |  |  |  | 1,791 |  |
Charge-offs |  |  | (185) | 0 | (393) | 0 |
Recoveries |  |  | 0 | 0 | 0 | 0 |
Provision |  |  | (551) | (140) | 6,717 | 400 |
Ending balance | 17,575 |  | 17,575 | 9,220 | 17,575 | 9,220 |
Individually evaluated for credit loss | 637 |  | 637 | 1 | 637 | 1 |
Collectively evaluated for credit loss | 16,938 |  | 16,938 | 9,219 | 16,938 | 9,219 |
Individually evaluated for impairment | 4,506 |  | 4,506 |  | 4,506 |  |
Collectively evaluated for impairment | 1,724,268 |  | 1,724,268 |  | 1,724,268 |  |
Loans | 1,728,774 |  | 1,728,774 |  | 1,728,774 |  | 901,130
Construction Real Estate [Member] |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Beginning balance |  |  | 90 | 49 | 59 | 58 |
Acquisition related allowance for credit loss (PCD) |  |  |  |  | 0 |  |
Charge-offs |  |  | 0 | 0 | 0 | 0 |
Recoveries |  |  | 0 | 0 | 0 | 0 |
Provision |  |  | (7) | (13) | 24 | (22) |
Ending balance | 83 |  | 83 | 36 | 83 | 36 |
Individually evaluated for credit loss | 0 |  | 0 | 0 | 0 | 0 |
Collectively evaluated for credit loss | 82 |  | 82 | 36 | 82 | 36 |
Individually evaluated for impairment | 0 |  | 0 |  | 0 |  |
Collectively evaluated for impairment | 18,441 |  | 18,441 |  | 18,441 |  |
Loans | 18,441 |  | 18,441 |  | 18,441 |  | 17,042
Residential Portfolio Segment [Member] |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Beginning balance |  |  | 10,161 | 3,625 | 3,890 | 3,644 |
Acquisition related allowance for credit loss (PCD) |  |  |  |  | 168 |  |
Charge-offs |  |  | 0 | (23) | (52) | (23) |
Recoveries |  |  | 1 | 4 | 25 | 11 |
Provision |  |  | (336) | 227 | 5,795 | 201 |
Ending balance | 9,826 |  | 9,826 | 3,833 | 9,826 | 3,833 |
Individually evaluated for credit loss | 38 |  | 38 | 78 | 38 | 78 |
Collectively evaluated for credit loss | 9,788 |  | 9,788 | 3,755 | 9,788 | 3,755 |
Individually evaluated for impairment | 2,944 |  | 2,944 |  | 2,944 |  |
Collectively evaluated for impairment | 725,899 |  | 725,899 |  | 725,899 |  |
Loans | 728,843 |  | 728,843 |  | 728,843 |  | 281,701
Loans to other financial institutions [Member] |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Beginning balance |  |  | 5 | 50 | 60 | 30 |
Acquisition related allowance for credit loss (PCD) |  |  |  |  | 0 |  |
Charge-offs |  |  | 0 | 0 | 0 | 0 |
Recoveries |  |  | 0 | 0 | 0 | 0 |
Provision |  |  | (1) | 10 | (56) | 30 |
Ending balance | 4 |  | 4 | 60 | 4 | 60 |
Individually evaluated for credit loss | 0 |  | 0 | 0 | 0 | 0 |
Collectively evaluated for credit loss | 4 |  | 4 | $ 60 | 4 | $ 60 |
Individually evaluated for impairment | 0 |  | 0 |  | 0 |  |
Collectively evaluated for impairment | 2,483 |  | 2,483 |  | 2,483 |  |
Loans | $ 2,483 |  | $ 2,483 |  | $ 2,483 |  | $ 39,878

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