Segment Information (Details Textuals)	3 Months Ended		6 Months Ended
	Jul. 01, 2011	Jul. 02, 2010	Jul. 01, 2011	Jul. 02, 2010
Segment Information (Textuals) [Abstract]
Percentage of accounts receivable to Comcast forming part of Net accounts receivable	14.00%		14.00%
Comcast [Member]
Segment Information (Additional Textuals) [Abstract]
Percentage of revenue to major customers forming part of Net revenue	11.00%	16.00%	11.00%	15.00%
Echostar [Member]
Segment Information (Additional Textuals) [Abstract]
Percentage of revenue to major customers forming part of Net revenue		10.00%