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Goodwill and Intangible Assets - Amortization of Sales and Marketing Expense and Cost of Revenue (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 27, 2014
Dec. 28, 2013
Future estimated amortization expense    
2014 (three months) $ 4  
2015 30  
2016 52  
2017 86  
2018 16  
Thereafter 100  
Net Carrying Amount $ 288 $ 328 [1]
[1] Derived from the audited consolidated financial statements included in the Annual Report on Form 10-K filed with the SEC for the year ended December 28, 2013.