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Loans and Allowance for Credit Losses - Loans by Type as Percentage of Portfolio (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | $ 1,545,640 | $ 1,410,653 | $ 1,189,782 |
Allowance for loan losses (Note 3) | $ (16,552) | $ (15,685) | (7,619) | $ (7,688)
Percentage of allowance for credit losses | 1.07% | 1.11% |  |
Loans, net | $ 1,529,088 | $ 1,394,968 |  |
Agricultural [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | $ 48,221 | $ 49,210 | 64,159 |
Percentage of loans | 3.12% | 5.39% |  |
Allowance for loan losses (Note 3) | $ (90) | $ (94) | (144) | (448)
Commercial and Industrial [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | $ 228,256 | $ 229,915 | 210,210 |
Percentage of loans | 14.77% | 17.67% |  |
Allowance for loan losses (Note 3) | $ (2,260) | $ (2,216) | (1,361) | (1,454)
Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | $ 901,130 | $ 786,921 | 630,953 |
Percentage of loans | 58.30% | 53.03% |  |
Allowance for loan losses (Note 3) | $ (9,460) | $ (8,820) | (4,822) | (3,705)
Consumer Portfolio Segment [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | $ 29,412 | $ 36,541 | 39,808 |
Percentage of loans | 1.90% | 3.35% |  |
Allowance for loan losses (Note 3) | $ (733) | $ (823) | (310) | (290)
Construction Real Estate [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | $ 17,042 | $ 20,936 | 14,736 |
Percentage of loans | 1.10% | 1.24% |  |
Allowance for loan losses (Note 3) | $ (59) | $ (58) | (63) | (110)
Residential Portfolio Segment [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | $ 281,701 | $ 267,730 | 229,916 |
Percentage of loans | 18.23% | 19.32% |  |
Allowance for loan losses (Note 3) | $ (3,890) | $ (3,644) | (906) | (671)
Loans to Other Financial Institutions [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans | $ 39,878 | $ 19,400 | 0 |
Percentage of loans | 2.58% | 0.00% |  |
Allowance for loan losses (Note 3) | $ (60) | $ (30) | $ 0 | $ 0

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