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Accrued Liabilities (Details) - USD ($)
$ in Thousands
Jul. 04, 2015
Jan. 03, 2015
Jun. 28, 2014
Dec. 28, 2013
Accrued Liabilities [Abstract]        
Accrued customer rebates, fees and reimbursement $ 17,207 $ 11,645    
Accrued Income Taxes 3,616 4,372    
Income taxes payable 2,668 6,562    
Product Warranty Accrual 1,377 1,416 $ 1,113 $ 1,161
Other Accrued Liabilities, Current 5,980 7,108    
Accrued liabilities $ 28,180 $ 24,541