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Investments in Limited Partnerships - Investments in Community Development Entities and Investments in Limited Partnerships for Federal Rehabilitation/Historic Tax Credits (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Investments in Limited Partnerships |  |  |
Investments in community development entities net carrying amount | $ 199,000 | $ 361,000 |
Credit allowance period | 7 years |  |
Community development entities, minimum period before redemption | 7 years |  |
Usage of investment in community development entities federal new market tax credits | $ 120,000 | 100,000 | $ 100,000
Actual amortization of investment in community development entities | 75,000 | 83,000 | 83,000
Investments in limited partnerships for federal or historic tax credits | $ 0 | 415,000 |
Credit allowance period for federal rehabilitation/historic tax credits | 5 years |  |
Usage of certain federal rehabilitation/historic tax credits | $ 305,000 | 258,000 | 258,000
Actual amortization of investment in limited partnerships | $ 254,000 | $ 214,000 | $ 214,000
For the First three years |  |  |
Investments in Limited Partnerships |  |  |
Percentage of investments on credit allowance period | 5.00% |  |
For the next four years |  |  |
Investments in Limited Partnerships |  |  |
Percentage of investments on credit allowance period | 6.00% |  |
Accounting Standards Update 2023-02 |  |  |
Investments in Limited Partnerships |  |  |
Reduction in retained earnings due to investments in limited partnerships for historic tax credits | $ 161,000 |  |
Accounting Standards Update 2023-02 | Adjustment |  |  |
Investments in Limited Partnerships |  |  |
Reduction in the investment in these new market tax credits | $ 62,000 |  |

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