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Securities Available-for-Sale - Schedule of amortized cost and fair values of securities available-for-sale by contractual maturity (Detail) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Due in one year or less | $ 0 |  |
Due after one year through five years, Amortized Cost | 5,965 |  |
Due after five years through ten years, Amortized Cost | 6,458 |  |
Due after ten years, Amortized Cost | 30,797 |  |
Total U.S. Government-sponsored enterprises obligations ("GSE"), municipal bonds, corporate debt and corporate subordinated debt, Amortized Cost | 43,220 |  |
Mortgage-backed securities, Amortized Cost | 153,620 |  | $ 129,814
Due in one year or less, Fair value | 0 |  |
Due after one year through five years, Fair Value | 4,427 |  |
Due after five years through ten years, Fair Value | 6,285 |  |
Due after ten years, Fair Value | 26,856 |  |
Total U.S. Government-sponsored enterprises obligations ("GSE"), municipal bonds, corporate debt and corporate subordinated debt, Fair Value | 37,568 |  |
Mortgage-backed securities, Fair Value | 144,282 |  | 120,217
U.S. Government agency small business administration pools guaranteed by the SBA [Member] |  |  |
Mortgage-backed securities, Amortized Cost | 12,656 | [1] | 14,011
Mortgage-backed securities, Fair Value | 11,901 | [1] | 13,125
Collateralized mortgage obligations issued by the FHLMC, FNMA and GNMA [Member] |  |  |
Mortgage-backed securities, Amortized Cost | 35,859 | [1] | 19,924
Mortgage-backed securities, Fair Value | 35,906 | [1] | 19,362
Residential mortgage backed securities [Member] |  |  |
Mortgage-backed securities, Amortized Cost | 61,885 | [1] | 52,452
Mortgage-backed securities, Fair Value | $ 58,907 | [1] | $ 48,462
[1] | Actual maturities for these debt securities are dependent upon the interest rate environment and prepayments on the underlying loans.

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