Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Consolidated Statements of Comprehensive (Loss) Income [Abstract]
Net income	$ 3,591	$ 2,635	$ 5,020	$ 7,523
Foreign currency translation adjustment	(786)	1,088	(301)	(308)
Total comprehensive income	$ 2,805	$ 3,723	$ 4,719	$ 7,215