Note 10 - Pension and Postretirement Benefits - Amounts in Accumulated Other Comprehensive Income that have Not Been Recognized as Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	Nov. 28, 2015	Nov. 29, 2014
United States Pension Plan of US Entity [Member]
Unrecognized actuarial loss	$ 160,544	$ 140,009
Unrecognized prior service cost (benefit)	90	119
Ending balance	160,634	140,128
Foreign Pension Plan [Member]
Unrecognized actuarial loss	75,157	82,598
Unrecognized prior service cost (benefit)	(11)	(17)
Ending balance	75,146	82,581
Other Postretirement Benefit Plan [Member]
Unrecognized actuarial loss	21,189	23,348
Unrecognized prior service cost (benefit)	(41)	(2,546)
Ending balance	$ 21,148	$ 20,802