Concentration of Risk and Segment Information (Details Textual)	12 Months Ended
	Dec. 30, 2012	Jan. 01, 2012	Jan. 02, 2011
Customer Concentration Risk [Member]
Geographic Areas, Revenues from External Customers
Customers greater than 10% of revenue	43.00%	48.00%	44.00%
Apple Inc. [Member]
Geographic Areas, Revenues from External Customers
Percentage Of Revenue From Major Customers Or Licensees	13.00%
Samsung Electronics Co., Ltd. [Member]
Geographic Areas, Revenues from External Customers
Percentage Of Revenue From Major Customers Or Licensees		10.00%