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Investment Securities - Schedule of Amortized Cost and Estimated Fair Value of Investment Securities Available-for-Sale by Contractual Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Schedule Of Available For Sale Securities [Line Items]
Investment securities available-for-sale, Amortized Cost	$ 49,037	$ 23,791
Investment securities available-for-sale, Estimated Fair Value	48,557	24,005
U.S. Treasury Securities
Schedule Of Available For Sale Securities [Line Items]
Investment securities available-for-sale, within 1 year, Amortized Cost	0
Investment securities available-for-sale, Greater than 1 to 5 years, Amortized Cost	0
Investment securities available-for-sale, Greater than 5 to 10 years, Amortized Cost	5,068
Investment securities available-for-sale, Greater than 10 years, Amortized Cost	0
Investment securities available-for-sale, Amortized Cost	5,068
Investment securities available-for-sale, within 1 year, Estimated Fair Value	0
Investment securities available-for-sale, Greater than 1 to 5 years, Estimated Fair Value	0
Investment securities available-for-sale, Greater than 5 to 10 years, Estimated Fair Value	5,050
Investment securities available-for-sale, Greater than10 years, Estimated Fair Value	0
Investment securities available-for-sale, Estimated Fair Value	5,050
Municipal Securities - Tax Exempt
Schedule Of Available For Sale Securities [Line Items]
Investment securities available-for-sale, within 1 year, Amortized Cost	0
Investment securities available-for-sale, Greater than 1 to 5 years, Amortized Cost	0
Investment securities available-for-sale, Greater than 5 to 10 years, Amortized Cost	0
Investment securities available-for-sale, Greater than 10 years, Amortized Cost	540
Investment securities available-for-sale, Amortized Cost	540
Investment securities available-for-sale, within 1 year, Estimated Fair Value	0
Investment securities available-for-sale, Greater than 1 to 5 years, Estimated Fair Value	0
Investment securities available-for-sale, Greater than 5 to 10 years, Estimated Fair Value	0
Investment securities available-for-sale, Greater than10 years, Estimated Fair Value	536
Investment securities available-for-sale, Estimated Fair Value	536
Municipal Securities - Taxable
Schedule Of Available For Sale Securities [Line Items]
Investment securities available-for-sale, within 1 year, Amortized Cost	0
Investment securities available-for-sale, Greater than 1 to 5 years, Amortized Cost	0
Investment securities available-for-sale, Greater than 5 to 10 years, Amortized Cost	0
Investment securities available-for-sale, Greater than 10 years, Amortized Cost	796
Investment securities available-for-sale, Amortized Cost	796
Investment securities available-for-sale, within 1 year, Estimated Fair Value	0
Investment securities available-for-sale, Greater than 1 to 5 years, Estimated Fair Value	0
Investment securities available-for-sale, Greater than 5 to 10 years, Estimated Fair Value	0
Investment securities available-for-sale, Greater than10 years, Estimated Fair Value	790
Investment securities available-for-sale, Estimated Fair Value	790
Government Agency Securities
Schedule Of Available For Sale Securities [Line Items]
Investment securities available-for-sale, within 1 year, Amortized Cost	0
Investment securities available-for-sale, Greater than 1 to 5 years, Amortized Cost	0
Investment securities available-for-sale, Greater than 5 to 10 years, Amortized Cost	0
Investment securities available-for-sale, Greater than 10 years, Amortized Cost	11,837	11,870
Investment securities available-for-sale, Amortized Cost	11,837	11,870
Investment securities available-for-sale, within 1 year, Estimated Fair Value	0
Investment securities available-for-sale, Greater than 1 to 5 years, Estimated Fair Value	0
Investment securities available-for-sale, Greater than 5 to 10 years, Estimated Fair Value	0
Investment securities available-for-sale, Greater than10 years, Estimated Fair Value	11,542	11,859
Investment securities available-for-sale, Estimated Fair Value	11,542	11,859
Corporate Securities
Schedule Of Available For Sale Securities [Line Items]
Investment securities available-for-sale, within 1 year, Amortized Cost	0
Investment securities available-for-sale, Greater than 1 to 5 years, Amortized Cost	0
Investment securities available-for-sale, Greater than 5 to 10 years, Amortized Cost	8,925	2,215
Investment securities available-for-sale, Greater than 10 years, Amortized Cost	500	500
Investment securities available-for-sale, Amortized Cost	9,425	2,715
Investment securities available-for-sale, within 1 year, Estimated Fair Value	0
Investment securities available-for-sale, Greater than 1 to 5 years, Estimated Fair Value	0
Investment securities available-for-sale, Greater than 5 to 10 years, Estimated Fair Value	8,875	2,189
Investment securities available-for-sale, Greater than10 years, Estimated Fair Value	425	425
Investment securities available-for-sale, Estimated Fair Value	9,300	2,614
Government Agency Mortgage-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Investment securities available-for-sale, Amortized Cost	21,371	9,206
Investment securities available-for-sale, Estimated Fair Value	$ 21,339	$ 9,532

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