Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Consolidated Statements Of Comprehensive Income [Abstract]
Net income	$ 5,288	$ 3,800	$ 15,131	$ 10,603
Other comprehensive income:
Unrealized holding gain (loss) on available for sale securities	(680)	(419)	3,846	(7,169)
Change in fair value of derivative used for cash flow hedge	324	(524)	394	993
Other comprehensive income (loss), before tax	(356)	(943)	4,240	(6,176)
Tax benefit (expense) related to items of other comprehensive income (loss)	138	369	(1,640)	2,363
Other comprehensive income (loss), net of tax	(218)	(574)	2,600	(3,813)
Comprehensive income	$ 5,070	$ 3,226	$ 17,731	$ 6,790