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Securities (Gross Realized Gains and Losses on Sales of Securities Available-for-Sale) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Securities [Abstract] |  |  |  |
Gross realized gains | $ 35 | $ 33 | $ 56 | $ 71
Net realized gain | 35 | 33 | 56 | 71
Proceeds from sales of securities | $ 2,714 | $ 2,425 | $ 3,841 | $ 24,497

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