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Goodwill and Core Deposit Intangible - Additional Information (Detail) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
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Goodwill And Intangible Assets Disclosure [Line Items] |  |
Goodwill | $ 14,381 | $ 14,381
Core deposit intangible assets | $ 3,185 | $ 3,632
Percentage of fair value of reporting unit including goodwill | 50.00% |
Percentage of probability of fair value of reporting unit including goodwill | 50.00% |
Cornerstone Bank Acquisition [Member] |  |
Goodwill And Intangible Assets Disclosure [Line Items] |  |
Goodwill | $ 5,500 |
Five Branches Acquired [Member] |  |
Goodwill And Intangible Assets Disclosure [Line Items] |  |
Goodwill | $ 8,900 |
Core Deposits [Member] |  |
Goodwill And Intangible Assets Disclosure [Line Items] |  |
Intangible assets amortized year | 10 years |
Core Deposits [Member] | Noah Bank Acquisition [Member] |  |
Goodwill And Intangible Assets Disclosure [Line Items] |  |
Core deposit intangible assets | $ 98 |
Core Deposits [Member] | Cornerstone Bank Acquisition [Member] |  |
Goodwill And Intangible Assets Disclosure [Line Items] |  |
Core deposit intangible assets | 2,800 |
Core Deposits [Member] | Five Branches Acquired [Member] |  |
Goodwill And Intangible Assets Disclosure [Line Items] |  |
Core deposit intangible assets | $ 4,200 |

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