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Investments (Schedule of Amortized Cost and Fair Value of Other Investments) (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]    
FHLBB (carried at cost) $ 4,906 $ 6,167
FRB (carried at cost) 5,374 5,374
Other Investments, Amortized Cost $ 10,280 $ 11,541