Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Consolidated Statements Of Comprehensive Income [Abstract]
Net income	$ 3,800	$ 5,887	$ 10,603	$ 15,215
Other comprehensive income:
Unrealized holding gain (loss) on available for sale securities	(419)	691	(7,169)	982
Reclassification adjustment for net gains arising during the period				(35)
Change in fair value of derivative used for cash flow hedge	(524)	(210)	993	(532)
Other comprehensive loss, before tax	(943)	481	(6,176)	415
Tax benefit (expense) related to items of other comprehensive income (loss)	369	(178)	2,363	(179)
Other comprehensive loss, net of tax	(574)	303	(3,813)	236
Comprehensive income	$ 3,226	$ 6,190	$ 6,790	$ 15,451

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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