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Information Concerning Product Lines, Geographic Information and Revenue Concentration - Schedule of Revenue by Product Line (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 03, 2016
Mar. 29, 2015
Revenue from External Customer [Line Items]    
Total revenue $ 2,950 $ 6,159
New products    
Revenue from External Customer [Line Items]    
Total revenue 1,492 4,144
Mature products    
Revenue from External Customer [Line Items]    
Total revenue $ 1,458 $ 2,015