Note 7 - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 28, 2016	May 30, 2015	May 28, 2016	May 30, 2015
United States Pension Plan of US Entity [Member]
Service cost	$ 27	$ 26	$ 54	$ 53
Interest cost	3,768	4,080	7,535	8,161
Expected return on assets	(6,077)	(6,421)	(12,154)	(12,841)
Prior service cost	7	7	14	14
Actuarial loss	1,293	1,407	2,586	2,814
Net periodic (benefit) cost	(982)	(901)	(1,965)	(1,799)
Foreign Pension Plan [Member]
Service cost	481	473	961	980
Interest cost	1,366	1,461	2,733	2,977
Expected return on assets	(2,483)	(2,573)	(4,965)	(5,240)
Prior service cost	(1)	(1)	(2)	(2)
Actuarial loss	753	781	1,505	1,612
Net periodic (benefit) cost	116	141	232	327
Other Postretirement Benefit Plan [Member]
Service cost	84	112	168	224
Interest cost	480	511	960	1,021
Expected return on assets	(1,342)	(1,378)	(2,684)	(2,755)
Prior service cost	(10)	(626)	(20)	(1,252)
Actuarial loss	532	608	1,064	1,216
Net periodic (benefit) cost	$ (256)	$ (773)	$ (512)	$ (1,546)