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Fair Value - Summary of Financial Assets Measured at Fair Value on a Recurring Basis (Detail) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale | $ 354,341 | $ 373,532
Investment securities, Fair Value | 354,341 | 373,532
Mortgage derivative asset | 112 | 1,900
Mortgage derivative liability | 24 | 75
State and Municipal [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale | 50,993 | 51,113
U.S. Treasury and Agencies [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale | 67,162 | 64,066
Corporate Bonds [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale | 39,850 | 39,243
Level 1 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale |  | 3,000
Level 2 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale | 342,435 | 351,552
Level 3 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale | 11,906 | 18,980
Fair Value, Recurring [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities, Fair Value | 354,341 | 373,532
MSR assets | 28,991 |
Rabbi trust assets | 584 | 994
Mortgage derivative asset | 112 | 1,876
Interest rate swap asset | 95 | 199
Mortgage derivative liability | 24 | 75
Interest rate swap liability | 95 | 199
Fair Value, Recurring [Member] | State and Municipal [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale | 50,993 | 51,113
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 | 67,162 | 64,066
Fair Value, Recurring [Member] | Mortgage Backed Securities [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale | 196,336 | 219,110
Fair Value, Recurring [Member] | Corporate Bonds [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale | 39,850 | 39,243
Fair Value, Recurring [Member] | Level 1 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities, Fair Value |  | 3,000
Rabbi trust assets | 584 | 994
Fair Value, Recurring [Member] | Level 1 [Member] | Corporate Bonds [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale |  | 3,000
Fair Value, Recurring [Member] | Level 2 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities, Fair Value | 342,435 | 351,552
Mortgage derivative asset | 112 | 1,876
Interest rate swap asset | 95 | 199
Mortgage derivative liability | 24 | 75
Interest rate swap liability | 95 | 199
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 | 50,993 | 51,113
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 | 67,162 | 64,066
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 | 188,719 | 211,194
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 | 35,561 | 25,179
Fair Value, Recurring [Member] | Level 3 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Investment securities, Fair Value | 11,906 | 18,980
MSR assets | 28,991 |
Fair Value, Recurring [Member] | Level 3 [Member] | Mortgage Backed Securities [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Securities available for sale | 7,617 | 7,916
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 | $ 4,289 | $ 11,064

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