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Fair Value - Summary of Financial Assets Measured at Fair Value on a Recurring Basis (Detail) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Securities available for sale | $ 327,958 | $ 312,035 | [1]
Total securities available for sale | 327,958 | 312,035 |
U.S. Treasury and Agencies [Member] |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Securities available for sale | 70,988 | 69,455 |
State and Municipal [Member] |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Securities available for sale | 43,367 | 42,937 |
Corporate Bonds [Member] |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Securities available for sale | 34,991 | 35,205 |
Level 2 [Member] |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Securities available for sale | 327,458 | 311,285 |
Level 3 [Member] |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Securities available for sale | 500 | 750 |
Fair Value, Recurring [Member] |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Total securities available for sale | 327,958 | 312,035 |
Mortgage servicing rights assets | 249 | 386 |
Rabbi trust assets | 643 | 600 |
Mortgage derivative asset |  | 140 |
Interest rate swap asset | 56 | 95 |
Interest rate swap liability | 57 | 95 |
Fair Value, Recurring [Member] | Mortgage Backed Securities [Member] |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Securities available for sale | 178,612 | 164,438 |
Fair Value, Recurring [Member] | U.S. Treasury and Agencies [Member] |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Securities available for sale | 70,988 | 69,455 |
Fair Value, Recurring [Member] | State and Municipal [Member] |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Securities available for sale | 43,367 | 42,937 |
Fair Value, Recurring [Member] | Corporate Bonds [Member] |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Securities available for sale | 34,991 | 35,205 |
Fair Value, Recurring [Member] | Level 1 [Member] |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Rabbi trust assets | 643 | 600 |
Fair Value, Recurring [Member] | Level 2 [Member] |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Total securities available for sale | 327,458 | 311,285 |
Mortgage derivative asset |  | 140 |
Interest rate swap asset | 56 | 95 |
Interest rate swap liability | 57 | 95 |
Fair Value, Recurring [Member] | Level 2 [Member] | Mortgage Backed Securities [Member] |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Securities available for sale | 178,612 | 164,438 |
Fair Value, Recurring [Member] | Level 2 [Member] | U.S. Treasury and Agencies [Member] |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Securities available for sale | 70,988 | 69,455 |
Fair Value, Recurring [Member] | Level 2 [Member] | State and Municipal [Member] |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Securities available for sale | 43,367 | 42,937 |
Fair Value, Recurring [Member] | Level 2 [Member] | Corporate Bonds [Member] |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Securities available for sale | 34,491 | 34,455 |
Fair Value, Recurring [Member] | Level 3 [Member] |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Total securities available for sale | 500 | 750 |
Mortgage servicing rights assets | 249 | 386 |
Fair Value, Recurring [Member] | Level 3 [Member] | Corporate Bonds [Member] |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Securities available for sale | $ 500 | $ 750 |
[1] | Derived from audited December 31, 2024 Consolidated Financial Statements.

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