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Investment Securities (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2022 | Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract] |  |
Available-for-sale Securities Pledged as Collateral | $ 95.0 | $ 71.2
Description of Holding Securities | there were no holdings of securities of any one issuer, other than the U.S. Government and its agencies, in an amount greater than 10% of stockholders’ equity. | there were no holdings of securities of any one issuer, other than the U.S. Government and its agencies, in an amount greater than 10% of stockholders’ equity.
Accrued interest receivable for investment securities available for sale | $ 1.4 | $ 1.6

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