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Prepaids, Deposits, and Other Current Assets (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 28, 2013
Dec. 28, 2012
Prepaid Expense and Other Assets, Current [Line Items]    
Prepaid vendors $ 975 $ 1,044
Prepaid insurance 624 628
Value added tax (VAT) receivable 446 307
Other current assets 579 204
Prepaid Expenses Deposits and Other Assets Current $ 2,624 $ 2,183