Condensed Consolidated Statements of Comprehensive Income (unaudited) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Condensed Consolidated Statements of Comprehensive Income (unaudited) [Abstract]
Net income	$ 6,438	$ 5,619	$ 10,538	$ 9,400
Securities available for sale
Unrealized gains (losses) arising during period	2,334	(1,806)	4,448	464
Change in unrealized gains (losses) for which a portion of other than temporary impairment has been recognized in earnings	107	(21)	71	(10)
Reclassification adjustments for gains included in earnings	(109)	0	(283)	(75)
Unrealized gains (losses) recognized in other comprehensive income (loss) on securities available for sale	2,332	(1,827)	4,236	379
Income tax expense (benefit)	816	(639)	1,483	133
Unrealized gains (losses) recognized in other comprehensive income (loss) on available for sale securities, net of tax	1,516	(1,188)	2,753	246
Other comprehensive income (loss)	1,516	(1,188)	2,753	246
Comprehensive income	$ 7,954	$ 4,431	$ 13,291	$ 9,646

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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