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Investment Securities - Sale of Investment Securities and Gross 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
Available-for-sale:        
Sales proceeds $ 10,664 $ 4,099 $ 10,664 $ 4,099
Gross realized gains 17 1 17 1
Gross realized losses $ (80) $ 0 $ (80) $ 0