Note 10 - Pension and Postretirement Benefits - Weighted-average Assumption Used to Determine Benefit Obligations and Net Costs (Details)		12 Months Ended
		Dec. 03, 2016	Nov. 28, 2015	Nov. 29, 2014
United States Pension Plan of US Entity [Member]
Discount rate		4.08%	4.28%	4.08%
Rate of compensation increase	[1]	4.50%	4.50%	4.50%
Discount rate		4.28%	4.08%	4.74%
Expected Long-term Return on Assets		7.75%	7.75%	7.75%
Rate of compensation increase	[1]	4.50%	4.50%	4.50%
Foreign Pension Plan [Member]
Discount rate		2.31%	2.82%	2.90%
Rate of compensation increase	[1]	1.47%	1.58%	1.67%
Discount rate		2.83%	2.95%	3.77%
Expected Long-term Return on Assets		6.20%	6.22%	6.17%
Rate of compensation increase	[1]	1.58%	1.58%	1.67%
Other Postretirement Benefit Plan [Member]
Discount rate		3.85%	4.02%	3.84%
Discount rate		4.02%	3.84%	4.33%
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 2016, 2015 and 2014 are for the supplemental executive retirement plan only.