Concentration of Risk and Segment Information (Details Textual)	12 Months Ended
	Jan. 01, 2012	Jan. 02, 2011	Jan. 03, 2010
Revenue from External Customer
Customers greater than 10% of revenue	1	0	0
Customer Concentration Risk [Member]
Revenue from External Customer
Percentage Of Revenue From Major Customers Or Licensees	48.00%	44.00%	42.00%
Samsung Electronics Co., Ltd. [Member]
Revenue from External Customer
Percentage Of Revenue From Major Customers Or Licensees	10.00%