Note 10 - Pension and Postretirement Benefits - Weighted-average Assumption Used to Determine Benefit Obligations and Net Costs (Details)		12 Months Ended
		Nov. 28, 2015	Nov. 29, 2014	Nov. 30, 2013
United States Pension Plan of US Entity [Member]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate		4.28%	4.08%	4.77%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase	[1]	4.50%	4.50%	4.50%
Discount rate		4.08%	4.74%	3.81%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets		7.75%	7.75%	7.75%
Rate of compensation increase		4.50%	4.50%	4.50%
Foreign Pension Plan [Member]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate		2.82%	2.90%	3.74%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase	[1]	1.58%	1.67%	1.84%
Discount rate		2.95%	3.77%	3.74%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets		6.22%	6.17%	5.96%
Rate of compensation increase		1.58%	1.67%	1.84%
Other Postretirement Benefit Plan [Member]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate		4.02%	3.84%	4.34%
Discount rate		3.84%	4.33%	3.46%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets		8.75%	8.75%	8.75%

[1] Benefits under the U.S. Pension Plan were locked-in as of May 31, 2011 and no longer include compensation increases. The 4.50 percent rate for 2015, 2014 and 2013 are for the supplemental executive retirement plan only.