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The Company and Basis of Presentation (Details) (USD $)						12 Months Ended
The Company and Basis of Presentation (Details) (USD $)	Dec. 29, 2013	Dec. 30, 2012	Jan. 01, 2012	Jan. 02, 2011	Dec. 29, 2013 Revolving Credit Facility [Member] Silicon Valley Bank [Member]	Dec. 29, 2013 Samsung [Member] Sales Revenue, Goods, Net [Member]
Liquidity [Line Items]
Cash and cash equivalents	$ 37,406,000	$ 22,578,000	$ 20,203,000	$ 21,956,000
Remaining borrowing capacity					$ 5,000,000
Percentage of revenue from major customer						56.00%

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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