Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Total carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue or other forms of income in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer.

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The number of derivative instruments of a particular group held by the entity.

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Basis of Presentation and Significant Accounting Policies (Details) $ in Thousands	3 Months Ended			6 Months Ended		12 Months Ended
	Jul. 02, 2016 USD ($) Contract	Jan. 02, 2016 USD ($) Contract	Jul. 04, 2015	Jul. 02, 2016 USD ($) Contract	Jul. 04, 2015	Jan. 02, 2016 USD ($) Contract	Jun. 30, 2016 Contract	Jan. 31, 2016 Contract
General Discussion of Derivative Instruments and Hedging Activities [Abstract]
Derivative contracts \| Contract	1			1
Risks and Uncertainties [Abstract]
Allowance for doubtful accounts	$ 600	$ 600		$ 600		$ 600
Deferred Revenue and Credits [Abstract]
Inventory valued at published list prices and held by sell-through distributors with right of return	70,555	47,086		70,555		47,086
Allowance for distributor advances	(31,040)	(22,290)		(31,040)		(22,290)
Deferred cost of sales related to inventory held by sell-through distributors	(11,494)	(6,930)		(11,494)		(6,930)
Total Deferred income and allowances on sales to sell-through distributors	$ 28,021	17,866		$ 28,021		17,866
Revenue \| Customer Concentration Risk
Risks and Uncertainties [Abstract]
Concentration Risk	7.00%			6.00%
Sales Revenue \| Customer Concentration Risk
Risks and Uncertainties [Abstract]
Concentration Risk	20.00%		33.00%	22.00%	34.00%
Sell-Through Distributors \| Customer Concentration Risk
Risks and Uncertainties [Abstract]
Concentration Risk	59.00%		43.00%	56.00%	45.00%
Not designated as effective hedges for accounting purposes \| Foreign exchange contracts
General Discussion of Derivative Instruments and Hedging Activities [Abstract]
Open foreign exchange contracts - notional amounts	$ 1,300	$ 3,300		$ 1,300		$ 3,300
Not designated as effective hedges for accounting purposes \| Derivative One
General Discussion of Derivative Instruments and Hedging Activities [Abstract]
Derivative contracts \| Contract		6				6	4	2
Maximum
Basis of Presentation and Significant Accounting Policies [Line Items]
Term of maturities of investments considered cash and cash equivalents				3 months
Customer A \| Revenue \| Customer Concentration Risk
Risks and Uncertainties [Abstract]
Concentration Risk			12.00%		11.00%
Sell-Through Distributor A \| Sell-Through Distributors \| Customer Concentration Risk
Risks and Uncertainties [Abstract]
Concentration Risk				41.00%		20.00%
Sell-Through Distributor B \| Sell-Through Distributors \| Customer Concentration Risk
Risks and Uncertainties [Abstract]
Concentration Risk				29.00%		15.00%
Other Nonoperating Income (Expense)
General Discussion of Derivative Instruments and Hedging Activities [Abstract]
Gain on foreign exchange contracts adjusted to fair value through earnings - less than	$ 100	$ 100
Equipment \| Minimum
Deferred Revenue and Credits [Abstract]
Property, plant and equipment, useful life				3 years
Equipment \| Maximum
Deferred Revenue and Credits [Abstract]
Property, plant and equipment, useful life				5 years
Tools, Dies and Molds \| Minimum
Deferred Revenue and Credits [Abstract]
Property, plant and equipment, useful life				1 year
Tools, Dies and Molds \| Maximum
Deferred Revenue and Credits [Abstract]
Property, plant and equipment, useful life				3 years
Building
Deferred Revenue and Credits [Abstract]
Property, plant and equipment, useful life				30 years
Software Development \| Minimum
Deferred Revenue and Credits [Abstract]
Property, plant and equipment, useful life				3 years
Software Development \| Maximum
Deferred Revenue and Credits [Abstract]
Property, plant and equipment, useful life				5 years