Intangible Assets and Acquisition Related Charges (Details) (USD $)	3 Months Ended		9 Months Ended		1 Months Ended	3 Months Ended	9 Months Ended	0 Months Ended	1 Months Ended	3 Months Ended	9 Months Ended	0 Months Ended	1 Months Ended	3 Months Ended	9 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Sep. 29, 2012	Oct. 01, 2011	Dec. 31, 2011 SiliconBlue Technologies Ltd.	Sep. 29, 2012 SiliconBlue Technologies Ltd.	Sep. 29, 2012 SiliconBlue Technologies Ltd.	Dec. 16, 2011 SiliconBlue Technologies Ltd. Developed technology	Dec. 31, 2011 SiliconBlue Technologies Ltd. Developed technology	Sep. 29, 2012 SiliconBlue Technologies Ltd. Developed technology	Sep. 29, 2012 SiliconBlue Technologies Ltd. Developed technology	Dec. 16, 2011 SiliconBlue Technologies Ltd. Customer relationships	Dec. 31, 2011 SiliconBlue Technologies Ltd. Customer relationships	Sep. 29, 2012 SiliconBlue Technologies Ltd. Customer relationships	Sep. 29, 2012 SiliconBlue Technologies Ltd. Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in years)							6 years 3 months 18 days	7 years			7 years	5 years 6 months			5 years 6 months
Gross						$ 18,500,000	$ 18,500,000			$ 10,700,000	$ 10,700,000			$ 7,800,000	$ 7,800,000
Accumulated Amortization						(2,333,000)	(2,333,000)			(1,210,000)	(1,210,000)			(1,123,000)	(1,123,000)
Intangible assets, net of amortization						16,167,000	16,167,000			9,490,000	9,490,000			6,677,000	6,677,000
Severance related to integration of employees					0	0	633,000
Professional fees related to acquisition					397,000	0	501,000
Amortization of acquired intangible assets									64,000	382,000	1,146,000		59,000	354,000	1,064,000
Amortization of $0.3 million step-up in inventory fair value at date of acquisition					16,000	0	248,000
Net all other, including reversal of bad debt reserve					0	(7,000)	(174,000)
Total	729,000	0	3,418,000	0	536,000	729,000	3,418,000
Step-up in inventory							300,000
2012							4,155,000
2013							2,947,000
2014							2,947,000
2015							2,947,000
2016							2,947,000
2017							2,179,000
2018							1,463,000
Total							$ 19,585,000