Note 9 - Components of Net Periodic Cost (Benefit) Related to Pension and Other Postretirement Benefit Plans - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 03, 2017	May 28, 2016	Jun. 03, 2017	May 28, 2016
Pension Plan [Member] | UNITED STATES
Actuarial loss	$ 1,307	$ 1,293	$ 2,614	$ 2,586
Net periodic (benefit) cost	(1,419)	(982)	(2,838)	(1,965)
Service cost	28	27	56	54
Interest cost	3,603	3,768	7,206	7,535
Expected return on assets	(6,364)	(6,077)	(12,728)	(12,154)
Prior service cost	7	7	14	14
Pension Plan [Member] | Foreign Plan [Member]
Actuarial loss	846	753	1,688	1,505
Net periodic (benefit) cost	104	116	206	232
Service cost	512	481	1,020	961
Interest cost	1,147	1,366	2,291	2,733
Expected return on assets	(2,400)	(2,483)	(4,791)	(4,965)
Prior service cost	(1)	(1)	(2)	(2)
Other Postretirement Benefits Plan [Member]
Actuarial loss	253	532	506	1,064
Net periodic (benefit) cost	(744)	(256)	(1,488)	(512)
Service cost	52	84	104	168
Interest cost	398	480	796	960
Expected return on assets	(1,447)	(1,342)	(2,894)	(2,684)
Prior service cost		$ (10)		$ (20)