Condensed Consolidated Statement of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2016	Oct. 03, 2015	Oct. 01, 2016	Oct. 03, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 3,853	$ 4,892	$ 16,324	$ 15,579
Other comprehensive income, net of tax
Foreign currency translation adjustment	8	(8)	(226)	(3)
Total comprehensive income	$ 3,861	$ 4,884	$ 16,098	$ 15,576