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Business Segments and Geographic Information (DetailsTextual) (USD $)
6 Months Ended
Jul. 03, 2011
Jul. 04, 2010
Jan. 02, 2011
Business Segment and Geographical Information (Textuals) [Abstract]      
Dividend received by South African Subsidiary from SAC $ 5,402,000 $ 3,909,000  
Investment in SACS $ 9,900,000   $ 13,800,000