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Regulatory Capital - Reconciliation of Stockholders' Equity to Federal Regulatory Capital (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |  |
Stockholders' equity of the Corporation | $ 328,589 | $ 289,588 | $ 260,640 | $ 232,422
Net unrealized and accumulated losses on specific items | 11,425 | 13,717 |  |
Disallowed servicing assets | (514) | (614) |  |
Disallowed goodwill and other intangibles | (10,380) | (10,368) |  |
Equity Impact Of ASC326 Phase In | 676 | 1,015 |  |
Tier 1 capital | 329,796 | 293,338 |  |
Allowable general valuation allowances and subordinated debt | 91,843 | 82,102 |  |
Total Capital | $ 421,639 | $ 375,440 |  |

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