Investment Securities - Schedule of Amortized Cost and Estimated Fair Value of Investment Securities Available-for-Sale and Held to Maturity by Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Schedule Of Available For Sale Securities [Line Items]
Investment securities available-for-sale, Greater than 1 to 5 years, Amortized Cost	$ 6,950
Investment securities available-for-sale, Greater than 5 to 10 years, Amortized Cost	21,160
Investment securities available-for-sale, Greater than 10 years, Amortized Cost	10,340
Investment securities available-for-sale, Amortized Cost	56,698	$ 57,039
Investment securities available-for-sale, Greater than 1 to 5 years, Estimated Fair Value	6,592
Investment securities available-for-sale, Greater than 5 to 10 years, Estimated Fair Value	18,810
Investment securities available-for-sale, Greater than10 years, Estimated Fair Value	7,495
Investment securities available-for-sale, Estimated Fair Value	48,239	48,561
Investment securities held to maturity, Within 1 year, Amortized Cost	999
Investment securities held to maturity, Greater than 1 to 5 years, Amortized Cost	16,782
Investment securities held to maturity, Greater than 5 to 10 years, Amortized Cost	15,718
Investment securities held to maturity, Amortized Cost	34,275
Investment securities held to maturity, Within 1 year, Estimated Fair Value	995
Investment securities held to maturity, Greater than 1 to 5 years, Estimated Fair Value	16,716
Investment securities held to maturity, Greater than 5 to 10 years, Estimated Fair Value	15,441
Investment securities held to maturity, Estimated Fair Value	33,873
Debt Securities excluding Mortgage Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Investment securities available-for-sale, Amortized Cost	38,450
Investment securities available-for-sale, Estimated Fair Value	32,897
Investment securities held to maturity, Amortized Cost	33,499
Investment securities held to maturity, Estimated Fair Value	33,152
Government Agency Mortgage-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Investment securities available-for-sale, Amortized Cost	18,248	18,643
Investment securities available-for-sale, Estimated Fair Value	15,342	$ 15,948
Investment securities held to maturity, Amortized Cost	776
Investment securities held to maturity, Estimated Fair Value	$ 721