Consolidated Condensed Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 3,482	$ 3,225	$ 10,004	$ 8,923
Other Comprehensive Income (Loss)
Net unrealized holding gain (loss) on securities available for sale	(1,260)	2,668	4,606	529
Reclassification adjustment for realized gains included in net income	(92)	(57)	(862)	(423)
Net unrealized gain (loss) on derivative used for cash flow hedges	19	15	(9)	72
Other comprehensive income, before tax, total	(1,333)	2,626	3,735	178
Income tax (expense) benefit related to other comprehensive income	481	(889)	(1,248)	(45)
Other comprehensive income (loss), net of tax	(852)	1,737	2,487	133
Comprehensive Income	$ 2,630	$ 4,962	$ 12,491	$ 9,056