Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measures (Schedule Of Assets And Liabilities Measured At Fair Value) (Details)

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Fair Value Measures (Schedule Of Assets And Liabilities Measured At Fair Value) (Details) - USD ($)
$ in Thousands
Jul. 02, 2016
Jan. 02, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money market funds included in cash equivalents $ 22,938 $ 14,460
Foreign currency contracts included in prepaid expenses and other current assets   33
Foreign currency contracts included in other current liabilities (161)  
Total financial assets and liabilities 22,777 14,493
Fair Value, Inputs, Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money market funds included in cash equivalents 22,938 14,460
Total financial assets and liabilities 22,938 14,460
Fair Value, Inputs, Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Foreign currency contracts included in prepaid expenses and other current assets   33
Foreign currency contracts included in other current liabilities (161)  
Total financial assets and liabilities $ (161) $ 33