CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 1,125	$ 891	$ 2,067	$ 1,507
Other comprehensive income (loss):
Change in net unrealized gains	984	(1,698)	1,522	(1,985)
Less: reclassification adjustments for net gains included in net income	0	0	0	0
Net unrealized holding gains (losses)	984	(1,698)	1,522	(1,985)
Income tax effect	(406)	701	(628)	819
Other comprehensive income (loss)	578	(997)	894	(1,166)
Total comprehensive income (loss)	$ 1,703	$ (106)	$ 2,961	$ 341