Note 20 - Quarterly Results of Operations (Unaudited) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended						12 Months Ended
	Nov. 30, 2013	Aug. 31, 2013	Nov. 24, 2012	Aug. 25, 2012	May 26, 2012	Feb. 25, 2012	Nov. 30, 2013	Nov. 24, 2012	Nov. 26, 2011
Quarterly Financial Information Disclosure [Abstract]
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations		$ 221					$ 132	$ 284
Other than Temporary Impairment Losses, Investments	416					806
Restructuring, Settlement and Impairment Provisions					475	236		711	2,500
Gain (Loss) on Contract Termination					(131)	(228)		(359)	(3,728)
Income from Continued Dumping and Subsidy Offset Act					9,010			9,010	765
Income Tax Expense (Benefit)			$ (15,907)	$ (1,205)	$ (1,592)		$ 3,091	$ (14,699)	$ 4,409