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Securities Available-for-Sale - Summary of gross unrealized losses and fair value for those investments with unrealized losses (Detail) $ in Thousands | Jun. 30, 2025 USD ($) Number | Dec. 31, 2024 USD ($) Number
--- | --- | ---
Less than 12 Months, Number of Securities | Number | 29 | 35
Less than 12 Months, Fair Value | $ 38,130 | $ 39,378
Less than 12 Months, Unrealized Losses | $ (437) | $ (588)
More than 12 Months, Number of Securities | Number | 82 | 81
More than 12 Months, Fair Value | $ 55,490 | $ 57,092
More than 12 Months, Unrealized Losses | (10,273) | (9,688)
Total, Fair Value | 93,620 | 96,470
Total, Unrealized Losses | $ (10,710) | $ (10,276)
U.S. Government-sponsored enterprises obligations [Member] |  |
More than 12 Months, Number of Securities | Number | 3 | 3
More than 12 Months, Fair Value | $ 1,438 | $ 1,387
More than 12 Months, Unrealized Losses | (190) | (255)
Total, Fair Value | 1,438 | 1,387
Total, Unrealized Losses | $ (190) | $ (255)
U.S. Government agency small business administration pools guaranteed by the SBA [Member] |  |
Less than 12 Months, Number of Securities | Number | 7 | 5
Less than 12 Months, Fair Value | $ 5,310 | $ 4,245
Less than 12 Months, Unrealized Losses | $ (42) | $ (28)
More than 12 Months, Number of Securities | Number | 8 | 8
More than 12 Months, Fair Value | $ 5,962 | $ 6,224
More than 12 Months, Unrealized Losses | (717) | (874)
Total, Fair Value | 11,272 | 10,469
Total, Unrealized Losses | $ (759) | $ (902)
Collateralized mortgage obligations issued by the FHLMC, FNMA and GNMA [Member] |  |
Less than 12 Months, Number of Securities | Number | 8 | 7
Less than 12 Months, Fair Value | $ 17,779 | $ 11,913
Less than 12 Months, Unrealized Losses | $ (192) | $ (126)
More than 12 Months, Number of Securities | Number | 4 | 4
More than 12 Months, Fair Value | $ 2,244 | $ 2,256
More than 12 Months, Unrealized Losses | (386) | (470)
Total, Fair Value | 20,023 | 14,169
Total, Unrealized Losses | $ (578) | $ (596)
Residential mortgage backed securities [Member] |  |
Less than 12 Months, Number of Securities | Number | 9 | 20
Less than 12 Months, Fair Value | $ 12,987 | $ 22,395
Less than 12 Months, Unrealized Losses | $ (156) | $ (422)
More than 12 Months, Number of Securities | Number | 25 | 24
More than 12 Months, Fair Value | $ 14,714 | $ 14,485
More than 12 Months, Unrealized Losses | (3,455) | (3,960)
Total, Fair Value | 27,701 | 36,880
Total, Unrealized Losses | $ (3,611) | $ (4,382)
Municipal bonds [Member] |  |
Less than 12 Months, Number of Securities | Number | 5 | 3
Less than 12 Months, Fair Value | $ 2,054 | $ 825
Less than 12 Months, Unrealized Losses | $ (47) | $ (12)
More than 12 Months, Number of Securities | Number | 36 | 36
More than 12 Months, Fair Value | $ 25,686 | $ 27,369
More than 12 Months, Unrealized Losses | (4,970) | (3,490)
Total, Fair Value | 27,740 | 28,194
Total, Unrealized Losses | $ (5,017) | $ (3,502)
Corporate debt [Member] |  |
More than 12 Months, Number of Securities | Number | 1 | 1
More than 12 Months, Fair Value | $ 487 | $ 484
More than 12 Months, Unrealized Losses | (13) | (16)
Total, Fair Value | 487 | 484
Total, Unrealized Losses | $ (13) | $ (16)
Corporate subordinated debt [Member] |  |
More than 12 Months, Number of Securities | Number | 5 | 5
More than 12 Months, Fair Value | $ 4,959 | $ 4,887
More than 12 Months, Unrealized Losses | (542) | (623)
Total, Fair Value | 4,959 | 4,887
Total, Unrealized Losses | $ (542) | $ (623)

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