Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Consolidated Statements Of Comprehensive Income [Abstract]
Net income	$ 17,704	$ 17,407	$ 21,030
Other comprehensive income:
Unrealized gain (loss) on available for sale securities	204	(1,599)	5,784
Reclassification adjustment for net gains arising during the period	(294)	(162)	(1,884)
Change in fair value of derivative used for cash flow hedge	715	216	381
Other comprehensive income (loss), before tax	625	(1,545)	4,281
Tax (expense) benefit related to items of other comprehensive income (loss)	(242)	650	(1,665)
Other comprehensive income (loss), net of tax	383	(895)	2,616
Comprehensive income	$ 18,087	$ 16,512	$ 23,646