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Concentrations of Credit Risk (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Concentration Risk [Line Items] |  |
Credit extending terms to borrowers | The Bank, as a matter of policy, does not generally extend credit to any single borrower or group of related borrowers in excess of 25% of statutory capital, or approximately |
Percentage of statutory capital | 25.00% |
Credit extending terms, maximum amount of statutory capital | $ 115.3 |
Credit Concentration Risk [Member] | Assets, Total [Member] | Real Estate [Member] |  |
Concentration Risk [Line Items] |  |
Concentration risk (as a percent) | 79.00% |
Credit Concentration Risk [Member] | Commercial Real Estate [Member] | Assets, Total [Member] |  |
Concentration Risk [Line Items] |  |
Concentration risk (as a percent) | 59.00% | 51.00%

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