Note 10 - Pension and Postretirement Benefits - Asset Allocation (Details)	12 Months Ended
	Nov. 28, 2015	Nov. 29, 2014
Equity Funds [Member] | United States Pension Plan of US Entity [Member]
Defined Benefit Plan, Target Plan Asset Allocations	60.00%
Percentage of plan assets at year-end	57.70%	60.20%
Equity Funds [Member] | Foreign Pension Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocations	49.50%
Percentage of plan assets at year-end	50.30%	49.80%
Equity Funds [Member] | Other Postretirement Benefit Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocations	0.00%
Percentage of plan assets at year-end	0.00%	0.00%
Fixed Income Funds [Member] | United States Pension Plan of US Entity [Member]
Defined Benefit Plan, Target Plan Asset Allocations	40.00%
Percentage of plan assets at year-end	38.80%	38.90%
Fixed Income Funds [Member] | Foreign Pension Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocations	50.50%
Percentage of plan assets at year-end	49.10%	46.70%
Fixed Income Funds [Member] | Other Postretirement Benefit Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocations	0.00%
Percentage of plan assets at year-end	0.00%	0.00%
Fixed Income Funds [Member]
Defined Benefit Plan, Target Plan Asset Allocations	40.00%
Real Estate [Member] | United States Pension Plan of US Entity [Member]
Defined Benefit Plan, Target Plan Asset Allocations	0.00%
Percentage of plan assets at year-end	0.00%	0.00%
Real Estate [Member] | Foreign Pension Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocations	0.00%
Percentage of plan assets at year-end	0.00%	1.10%
Real Estate [Member] | Other Postretirement Benefit Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocations	0.00%
Percentage of plan assets at year-end	0.00%	0.00%
Insurance [Member] | United States Pension Plan of US Entity [Member]
Defined Benefit Plan, Target Plan Asset Allocations	0.00%
Percentage of plan assets at year-end	0.00%	0.00%
Insurance [Member] | Foreign Pension Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocations	0.00%
Percentage of plan assets at year-end	0.00%	0.00%
Insurance [Member] | Other Postretirement Benefit Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocations	100.00%
Percentage of plan assets at year-end	99.50%	98.30%
Cash [Member] | United States Pension Plan of US Entity [Member]
Defined Benefit Plan, Target Plan Asset Allocations	0.00%
Percentage of plan assets at year-end	3.50%	0.90%
Cash [Member] | Foreign Pension Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocations	0.00%
Percentage of plan assets at year-end	0.60%	2.40%
Cash [Member] | Other Postretirement Benefit Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocations	0.00%
Percentage of plan assets at year-end	0.50%	1.70%
United States Pension Plan of US Entity [Member]
Defined Benefit Plan, Target Plan Asset Allocations	100.00%
Percentage of plan assets at year-end	100.00%	100.00%
Foreign Pension Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocations	100.00%
Percentage of plan assets at year-end	100.00%	100.00%
Other Postretirement Benefit Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocations	100.00%
Percentage of plan assets at year-end	100.00%	100.00%