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Balance Sheet Details - Accumulated Other Comprehensive Income (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 30, 2013
Dec. 31, 2012
Mar. 31, 2012
Dec. 31, 2011
Mar. 30, 2013
Other Comprehensive Income (Loss) Before Reclassification [Member]
Mar. 31, 2012
Other Comprehensive Income (Loss) Before Reclassification [Member]
Schedule of Accumulated Other Comprehensive Income (Loss) [Line Items]            
Accumulated other comprehensive income, foeign currency translation adjustments $ 114 $ 132 $ 145 $ 98    
Accumulated other comprehensive income 114 132 145 98    
Foreign currency translation adjustments         (18) 47
Other comprehensive income (loss)         $ (18) $ 47