Basis of Presentation and Significant Accounting Policies (Details)					6 Months Ended	3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended
	Jun. 30, 2012 USD ($)	Jun. 30, 2012 JPY (¥)	Dec. 31, 2011 USD ($)	Dec. 31, 2011 JPY (¥)	Jun. 30, 2012 Customer Base Customer Concentration Risk Asia Pacific [Member]	Jun. 30, 2012 Sales Revenue Sell-Through Distributors	Jul. 02, 2011 Sales Revenue Sell-Through Distributors	Jun. 30, 2012 Sales Revenue Sell-Through Distributors	Jul. 02, 2011 Sales Revenue Sell-Through Distributors	Jun. 30, 2012 Arrow Electronics, Inc. and Weikeng Co. LTD Sales Revenue Customer Concentration Risk	Jun. 30, 2012 Arrow Electronics, Inc. and Weikeng Co. LTD Sales Revenue Customer Concentration Risk	Jun. 30, 2012 Maximum USD ($)	Jul. 02, 2011 Maximum USD ($)	Jun. 30, 2012 Minimum
Basis of Presentation and Significant Accounting Policies [Line Items]
Fiscal year duration												P53W		P52W
Term of maturities of investments considered cash and cash equivalents												3 months
General Discussion of Derivative Instruments and Hedging Activities [Abstract]
Foreign exchange contracts outstanding		¥ 0		¥ 140,000,000
Gain on foreign exchange contracts adjusted to fair value through earnings												100,000	100,000
Risks and Uncertainties [Abstract]
Allowance for doubtful accounts	1,000,000		900,000
Resale of product by sell-through distributors as a percentage of total revenue					70.00%	56.00%	57.00%	55.00%	60.00%	47.00%	45.00%
Deferred Revenue and Credits [Abstract]
Inventory valued at published list price and held by sell-through distributors with right of return	44,999,000		40,147,000
Allowance for distributor advances	(26,020,000)		(23,300,000)
Deferred cost of sales related to inventory held by sell-through distributors	(6,623,000)		(6,086,000)
Total Deferred income and allowances on sales to sell-through distributors	$ 12,356,000		$ 10,761,000