Accumulated Other Comprehensive Income (Loss) (Significant Amounts Reclassified Out Of Each Component Of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net realized gains on sales of securities	$ 21	$ 38
Income tax expense	(1,271)	(481)
NET INCOME	5,542	3,079
Amount Reclassified From Accumulated Other Comprehensive Income (Loss) [Member] | Unrealized gains and losses on available-for-sale securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net realized gains on sales of securities	21	38
Income tax expense	(4)	(8)
NET INCOME	$ 17	$ 30