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Fair Value Measurements and Fair Value of Financial Instruments - Debt Obligations (Details) - USD ($)
$ in Thousands
Jan. 02, 2016
Jan. 03, 2015
Carrying Value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt obligations $ 26,000 $ 25,250
Fair Value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt obligations $ 26,000 $ 25,250