Change in Accumulated Other Comprehensive Income (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Accumulated Other Comprehensive Income Loss [Line Items]
Debt and Equity Securities, Gain (Loss)	$ 158	$ (4)	$ 687	$ (7)
Reclassification adjustments	158	(4)	687	(7)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax	33	(1)	144	(2)
Unrealized Gains And Losses On Available For Sale Securities [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Debt and Equity Securities, Gain (Loss)			687	(7)
Reclassification adjustments	$ 158	$ (4)	$ 687	$ (7)

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Amount of unrealized and realized gain (loss) on investment in debt and equity securities.

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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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