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Income Taxes (Details 3) (USD $) In Thousands, unless otherwise specified | Dec. 29, 2012 | Dec. 31, 2011
--- | --- | ---
Tax effect of temporary differences and carry-forwards that give rise to significant portions of the net deferred tax assets |  |
Accruals and reserves | $ 2,295 | $ 2,775
Deferred revenue | 38 | 70
Fixed assets | 429 | 488
Intangibles | 180 | 6,959
Stock compensation | 753 | 789
Net operating loss | 5,310 | 120
Research and development credits | 1,008 | 508
Other tax credits | 47 | 1
Other | (1) | (10)
Net deferred tax asset | 10,061 | 11,700
Valuation Allowance | 10,061 | 11,700
Deferred Tax Assets (Liabilities), Net | $ 0 | $ 0

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