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Fair Value Measurements - Carrying Value and Fair Value of Debt Obligations (Details) - USD ($)
$ in Thousands
Jul. 04, 2015
Jan. 03, 2015
Carrying Value [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt obligations $ 23,000 $ 25,250
Fair Value [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt obligations $ 23,000 $ 25,250