Note 10 - Pension and Postretirement Benefits - Weighted-average Assumption Used to Determine Benefit Obligations and Net Costs (Details)	12 Months Ended
	Dec. 02, 2017	Dec. 03, 2016	Nov. 28, 2015
UNITED STATES
Discount rate	3.73%	4.10%	4.30%
Expected Long-term Return on Assets	7.75%	7.75%	7.75%
Foreign Plan [Member]
Expected Long-term Return on Assets	6.21%	6.20%	6.22%
Pension Plan [Member] | UNITED STATES
Discount rate	3.72%	4.08%	4.28%
Rate of compensation increase	4.50%	4.50%	4.50%
Discount rate	4.08%	4.28%	4.08%
Expected Long-term Return on Assets	7.75%	7.75%	7.75%
Rate of compensation increase	4.50%	4.50%	4.50%
Pension Plan [Member] | Foreign Plan [Member]
Discount rate	2.12%	2.31%	2.82%
Rate of compensation increase	1.71%	1.47%	1.58%
Discount rate	2.15%	2.83%	2.95%
Expected Long-term Return on Assets	6.21%	6.20%	6.22%
Rate of compensation increase	1.47%	1.58%	1.58%
Other Postretirement Benefits Plan [Member]
Discount rate	3.54%	3.85%	4.02%
Discount rate	3.85%	4.02%	3.84%
Expected Long-term Return on Assets	8.75%	8.75%	8.75%