Accumulated Other Comprehensive Income (Schedule of Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Accumulated Other Comprehensive Income [Abstract]
Net unrealized holding gains (losses) arising during period, before tax	$ 1,896	$ (976)
Other comprehensive (loss) income, before tax	1,896	(976)
Net unrealized holding gains (losses) arising during period, tax effect	522	(269)
Other comprehensive (loss) income, tax effect	522	(269)
Net unrealized holding gains (losses) arising during period, net of tax	1,374	(707)
Other comprehensive (loss) income, net of tax	$ 1,374	$ (707)