Consolidated Condensed 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
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 2,472	$ 2,173	$ 6,560	$ 5,244
Other comprehensive income (loss):
Net unrealized holding gain (loss) on securities available-for-sale	(397)	2,643	(7,108)	6,724
Net unrealized gain (loss) on securities available-for-sale for which a portion of an other-than-temporary impairment has been recognized in income	2	132	467	(20)
Less: Reclassification adjustment for realized gains included in net income	(453)	(1,095)	(835)	(1,575)
Net unrealized gain on derivative used for cash flow hedges	14	2	105	16
Total other comprehensive income (loss), before tax	(834)	1,682	(7,371)	5,145
Income taxes related to other comprehensive income	280	(578)	2,556	(1,785)
Other comprehensive income (loss)	(554)	1,104	(4,815)	3,360
Comprehensive income	$ 1,918	$ 3,277	$ 1,745	$ 8,604