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v3.25.2

Investment Securities - Summary of Amortized Cost and Estimated Fair Value (Detail) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2025 | Dec. 31, 2024
Debt Securities, Available-for-Sale [Line Items] |  |
Amortized cost | $ 234,602 | $ 259,658
Gross Unrealized Gains | 753 | 446
Gross Unrealized Losses | (10,590) | (12,933)
Fair value | 224,763 | 247,171
Mortgage-backed securities - U.S. Government Sponsored Enterprises (GSEs) [Member] |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Amortized cost | 175,736 | 197,792
Gross Unrealized Gains | 743 | 422
Gross Unrealized Losses | (6,033) | (7,669)
Fair value | 170,445 | 190,545
U.S. government agency securities [Member] |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Amortized cost | 11,260 | 11,260
Gross Unrealized Gains | 1 | 17
Gross Unrealized Losses | (919) | (1,077)
Fair value | 10,341 | 10,200
Obligations of state and political subdivisions [Member] |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Amortized cost | 43,220 | 43,895
Gross Unrealized Gains | 1 | 1
Gross Unrealized Losses | (3,635) | (4,166)
Fair value | 39,587 | 39,730
Small business association (SBA) securities [Member] |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Amortized cost | 1,481 | 1,856
Gross Unrealized Gains | 8 | 5
Gross Unrealized Losses | (1) | (4)
Fair value | 1,487 | 1,857
US Treasury Securities [Member] |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Amortized cost | 2,905 | 4,855
Gross Unrealized Gains | 0 | 1
Gross Unrealized Losses | (2) | (17)
Fair value | $ 2,903 | $ 4,839

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