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Nature of Operations and Summary of Significant Accounting Policies Federal Home Loan Bank Stock (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Investment Holdings    
Federal Home Loan Bank stock, at cost $ 17,812 $ 13,336
FHLB Stock    
Investment Holdings    
Other than temporary impairment losses, investments $ 0 $ 0