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Goodwill and Intangible Assets (Details 2) (USD $)
In Thousands, unless otherwise specified
Mar. 30, 2013
Dec. 29, 2012
Future estimated amortization expense    
2013 (nine months) $ 189  
2014 30  
2015 52  
2016 86  
2017 16  
Thereafter 116  
Net Carrying Amount $ 489 $ 554