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Investment Securities - Schedule of Carrying Value of Federal Home Loan Bank of Des Moines Stock and Federal Reserve Bank Stock (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Investments Debt And Equity Securities [Abstract]    
Federal Home Loan Bank of Des Moines Stock $ 10,000 $ 10,000
Federal Reserve Bank Stock 26,959 26,624
Total $ 36,959 $ 36,624