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Change in Accumulated Other Comprehensive Income (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Accumulated Other Comprehensive Income Loss [Line Items]
Reclassification adjustments		$ 158	$ 24	$ 687
Unrealized Gains And Losses On Available For Sale Securities [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Reclassification adjustments	$ 0	158	24	687
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax	$ 0	$ 33	$ 5	$ 144

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Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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Amount before tax of reclassification adjustments of other comprehensive income (loss).

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