Activity in Deferred Tax Valuation Allowance (Detail) - Valuation Allowance of Deferred Tax Assets - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Valuation Allowance [Line Items]
Beginning Balance	$ 2,534	$ 2,895	$ 4,545
Deductions	2,516	361	1,650
Ending Balance	$ 18	$ 2,534	$ 2,895