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Guarantees, Commitments and Contingencies - Summary of Commitment and Contingent Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
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Standby Letters of Credit [Member] |  |
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items] |  |
Commitments and contingent liabilities | $ 0 | $ 0
Standby Performance Letters of Credit [Member] |  |
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items] |  |
Commitments and contingent liabilities | 722 | 896
Commitments to Extend Credit [Member] |  |
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items] |  |
Commitments and contingent liabilities | $ 121,794 | $ 120,703

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