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+ Details

Business Acquisitions, Investments and Redeemable Noncontrolling Interests (Details 5) (BioProcess Algae [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 03, 2011	Nov. 27, 2010	Nov. 28, 2009	Nov. 27, 2008	May 01, 2008
BioProcess Algae [Member]
Schedule of Cost-method Investments [Line Items]
Cost Method Investment, Ownership Percentage					15.00%
Investment Identifier				BioProcess Algae LLC
Investment in affiliate	300	398
Cost Method Investments, Carrying Amount	$ 698	$ 398
Cost Method Investment Income, Dividend	$ 0	$ 0	$ 0