Investment Securities - Additional Information (Details)	Sep. 30, 2024 USD ($) Holding	Dec. 31, 2023 USD ($) Holding
Debt Securities, Available-for-Sale [Line Items]
Number of holdings greater than 10 percent of bank equity \| Holding	0	0
Allowance for credit loss	$ 0	$ 0
Accrued interest receivable	1,500,000	1,700,000
Securities available for sale	$ 244,031,000	$ 249,898,000
Debt Securities, Available-for-Sale, Pledging Purpose [Extensible Enumeration]	Asset Pledged as Collateral	Asset Pledged as Collateral
Asset Pledged as Collateral
Debt Securities, Available-for-Sale [Line Items]
Securities available for sale	$ 155,000,000	$ 170,000,000
US Government Agencies Debt Securities \| Minimum
Debt Securities, Available-for-Sale [Line Items]
Holdings of securities as percentage of bank equity	10.00%	10.00%

Holdings of securities as percentage of bank equity.

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- Definition

The number of holdings of any one issuer in an amount greater than 10% of bank equity.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Indicates pledging purpose of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, after allowance for credit loss, of accrued interest on investment in debt security measured at amortized cost (held-to-maturity).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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