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Supplemental Disclosures of Cash Flow Information (Details Textual) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Jan. 02, 2011
Dec. 30, 2012
Jan. 01, 2012
Supplemental Disclosures of Cash Flow Information (Textual) [Abstract]      
Additions to property, plant and equipment accrued $ 10.4 $ 14.4 $ 6.2
Trade-in allowance on manufacturing equipment $ 1.5