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Summary of Significant Accounting Policies Revenue Recognition (Details) - USD ($)
$ in Thousands
Jan. 02, 2016
Jan. 03, 2015
Dec. 28, 2013
Dec. 29, 2012
Accounting Policies [Abstract]        
Revenue Recognition, Sales Returns Reserve Liability $ (1,333) $ (1,169) $ (1,570) $ (1,129)