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AFS Securities (Activity related to sales of AFS securities) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract]      
Proceeds from sales of AFS of securities $ 0 $ 26,855 $ 33,840
Applicable income tax expense 0 15 1
Debt Securities, Realized Gain (Loss) $ 0 $ 71 $ 6