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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, 2021
Securities [Abstract] |  |
Gross realized gains | $ 35 | $ 56
Net realized gain | 35 | 56
Proceeds from sales of securities | $ 2,714 | $ 3,841

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