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Fair Value Measurements - Summary of Fair Value of Assets and Liabilities Measured on Recurring Basis (Detail) - Fair Value, Recurring [Member] - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Assets: |  |
US Government Agency securities | $ 13,345 | $ 13,073
Obligations of state and political subdivisions | 46,319 | 47,201
Mortgage backed securities in government-sponsored entities | 109,554 | 84,783
Other securities | 351 | 533
Total | 169,569 | 145,590
Derivative | 144 | 1,654
Fair Value, Inputs, Level 1 [Member] |  |
Assets: |  |
US Government Agency securities | 0 | 0
Obligations of state and political subdivisions | 0 | 0
Mortgage backed securities in government-sponsored entities | 0 | 0
Other securities | 0 | 0
Total | 0 | 0
Derivative | 0 | 0
Fair Value, Inputs, Level 2 [Member] |  |
Assets: |  |
US Government Agency securities | 13,345 | 13,073
Obligations of state and political subdivisions | 46,319 | 47,201
Mortgage backed securities in government-sponsored entities | 109,554 | 84,783
Other securities | 351 | 533
Total | 169,569 | 145,590
Derivative | 0 | 0
Fair Value, Inputs, Level 3 [Member] |  |
Assets: |  |
US Government Agency securities | 0 | 0
Obligations of state and political subdivisions | 0 | 0
Mortgage backed securities in government-sponsored entities | 0 | 0
Other securities | 0 | 0
Total | 0 | 0
Derivative | $ 144 | $ 1,654

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