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Significant Accounting Policies (Details) (USD $)
In Thousands, unless otherwise specified
9 Months Ended 12 Months Ended
Sep. 29, 2012
Dec. 29, 2012
Dec. 31, 2011
Trade receivables      
Trade Receivable Period to be Recognized as Past Due Minimum 90 days    
Accounts receivable, allowance   $ 8 $ 18
Advertising Expense   2,238 2,680
Merchant contract reserve   $ 500  
Restricted cash accumulated garnishing percentage   10.00%