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Inventory Reserve Accounts (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 29, 2012
Dec. 31, 2011
Jan. 01, 2011
Inventory Reserve Accounts [Abstract]      
Obsolescence damaged inventory reserve, Beginning balance $ 1,492 $ 1,670 $ 2,573
Obsolescence damaged inventory reserve, Expense 3,625 2,309 667
Obsolescence damaged inventory reserve, Write-offs and Other, net (3,991) (2,487) (1,570)
Obsolescence damaged inventory reserve, Ending balance 1,126 1,492 1,670
Lower of cost or market reserve, Beginning balance         
Lower of cost or market reserve, Expense       722
Lower of cost or market reserve, Write-offs and Other, net       (722)
Lower of cost or market reserve, Ending balance