The Company and Basis of Presentation (Details) (USD $)	3 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Dec. 29, 2013	Dec. 30, 2012
Liquidity [Line Items]
Cash and cash equivalents	$ 37,112,000	$ 19,659,000	$ 37,406,000	$ 22,578,000
Stock-based compensation	732,000	452,000
Cost of revenue	7,106,000	1,986,000
Revolving Credit Facility [Member] | Silicon Valley Bank [Member]
Liquidity [Line Items]
Line of credit facility, additional borrowing capacity	5,000,000
Restatement Adjustment [Member]
Liquidity [Line Items]
Stock-based compensation	281,000
Cost of revenue	$ 105,000