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v3.25.2

Investment Securities and Other Investments - Additional Information (Detail) - USD ($) | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Schedule Of Investments [Line Items] |  |  |
Unrealized gain position | $ 18,100,000 | $ 1,100,000 |
Federal home loan bank stock | 9,100,000 | 9,400,000 |
Federal reserve bank stock | 9,300,000 | 9,400,000 |
Correspondent bank stock | 500,000 | 500,000 |
Other equity investments | 4,600,000 | 4,800,000 |
Securities available for sale, at fair value | 327,958,000 | 312,035,000 | [1]
Other Investments, Total | 20,938,000 | 19,405,000 | [1]
Federal Reserve Board Bank Term Funding Program [Member] |  |  |
Schedule Of Investments [Line Items] |  |  |
Advance from federal reserve bank | 0 | 0 |
Asset Pledged as Collateral without Right [Member] | FHLB [Member] |  |  |
Schedule Of Investments [Line Items] |  |  |
Securities pledged | 177,000,000 | 268,900,000 |
Asset Pledged as Collateral without Right [Member] | FRB [Member] |  |  |
Schedule Of Investments [Line Items] |  |  |
Securities pledged | 0 | 16,300,000 |
Third Party Investment Grade [Member] |  |  |
Schedule Of Investments [Line Items] |  |  |
Securities pledged | $ 27,300,000 | $ 29,300,000 |
[1] | Derived from audited December 31, 2024 Consolidated Financial Statements.

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