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Goodwill and Intangible Assets (Details 2) (USD $)
In Thousands, unless otherwise specified
Sep. 28, 2013
Dec. 29, 2012
Future estimated amortization expense    
2013 (three months) $ 82  
2014 30  
2015 52  
2016 86  
2017 16  
Thereafter 116  
Net Carrying Amount $ 382 $ 554