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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
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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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- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27198-111563 + Details
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