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Investment Securities - Securities Gains and Losses (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Investments, Debt and Equity Securities [Abstract]        
Proceeds from sales of securities $ 1,301 $ 3,743 $ 1,301 $ 19,435
Gross realized gains 6 1 8 627
Gross realized losses (1) (143) (1) (605)
Net gain (loss) 5 (142) 7 22
Related income taxes $ 1 $ (29) $ 1 $ 5