Consolidated Condensed Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 2,365	$ 2,481
Other comprehensive income:
Net unrealized holding gain on securities available-for-sale	3,414	1,040
Reclassification adjustment for realized gains included in net income	(118)	(240)
Net unrealized gain (loss) on derivative used for cash flow hedges	(25)	15
Other comprehensive income, before tax, total	3,271	815
Income tax expense related to other comprehensive income	(1,119)	(280)
Other comprehensive income, net of tax	2,152	535
Comprehensive Income	$ 4,517	$ 3,016