INTERIM CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Statement Of Income And Comprehensive Income [Abstract]
Net income:	$ 1,985	$ 1,705
Available-for-sale securities:
Changes in unrealized losses	(7)	(15)
Reclassification adjustments for gains (losses) included in net income	1	(143)
Net change	(6)	(158)
Cash flow hedges:
Changes in unrealized gains	28	106
Reclassification adjustments for losses included in net income	(1)	(100)
Net change	27	6
Other comprehensive income (loss) before tax	21	(152)
Income tax benefit related to components of other comprehensive income (loss)	4	39
Other comprehensive income (loss), net of taxes	25	(113)
Comprehensive income	$ 2,010	$ 1,592