Commitments and Contingencies (Details) - Cresta Technology - patent			12 Months Ended
	Jul. 16, 2014	Jan. 28, 2014	Jan. 02, 2016	Jan. 03, 2015
Patent Litigation
Number of patents allegedly infringed	6	3
Number of creditors assuming ownership of Cresta Patents		1
Number of patents with validity challenged			2	2