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Investment Securities - Additional Information (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($) Security	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) Security	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number of available-for-sale securities in unrealized loss position 12 months or greater \| Security	67		67
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months, accumulated loss \| $					$ 214,000
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, accumulated loss \| $	$ 6,410,000		$ 6,410,000		8,294,000
Sales of available-for-sale securities \| $	0	$ 0	0	$ 0
Carrying value of available-for-sale securities pledged to secure public deposits \| $	48,400,000		48,400,000		48,561,000
Investment securities held-to-maturity estimated allowance for credit losses \| $	45,000		45,000		45,000
Collateral Pledged
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Carrying value of available-for-sale securities pledged to secure public deposits \| $	$ 3,500,000		$ 3,500,000		$ 4,200,000
U.S. Agency Bonds
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number of available-for-sale securities in unrealized loss position less than 12 months \| Security	4		4
U.S. Treasury Bonds
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number of available-for-sale securities in unrealized loss position less than 12 months \| Security	5		5
Government Agency Mortgage-Backed Securities
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number of available-for-sale securities in unrealized loss position less than 12 months \| Security	38		38
Municipal Securities
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number of available-for-sale securities in unrealized loss position less than 12 months \| Security	4		4
Corporate Securities
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number of available-for-sale securities in unrealized loss position less than 12 months \| Security	16		16