Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Consolidated Statements Of Comprehensive Income [Abstract]
Net income	$ 6,152	$ 4,414	$ 9,843	$ 6,803
Other comprehensive income:
Unrealized holding gain (loss) on available for sale securities	2,132	(6,481)	4,526	(6,750)
Change in fair value of derivative used for cash flow hedge	(32)	1,276	70	1,517
Other comprehensive income (loss), before tax	2,100	(5,205)	4,596	(5,233)
Tax benefit (expense) related to items of other comprehensive income (loss)	(812)	1,982	(1,778)	1,994
Other comprehensive income (loss), net of tax	1,288	(3,223)	2,818	(3,239)
Comprehensive income	$ 7,440	$ 1,191	$ 12,661	$ 3,564