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Change in Accumulated Other Comprehensive Income (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Accumulated Other Comprehensive Income Loss [Line Items] |  |
Reclassification adjustments | $ 76 |
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax | 16 |
Unrealized Gains And Losses On Available For Sale Securities [Member] |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |
Reclassification adjustments | $ 76 | $ 0

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