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BALANCE SHEET DETAILS - Components of Prepaid Expense and Other Current Assets (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 29, 2013
Dec. 31, 2012
Balance Sheet Related Disclosures [Abstract]    
Prepaid value-added tax $ 1,152 $ 1,133
Retirement insurance - foreign employees 54 1,432
Other current assets 1,520 1,996
Prepaid expenses and other current assets $ 2,726 $ 4,561