Note 8 - Components of Net Periodic 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
	May 30, 2020	Jun. 01, 2019	May 30, 2020	Jun. 01, 2019
Pension Plan [Member] | UNITED STATES
Service cost	$ 0	$ 1	$ 0	$ 2
Interest cost	2,935	3,673	5,869	7,346
Expected return on assets	(6,439)	(6,326)	(12,879)	(12,652)
Prior service cost (benefit)	(1)	3	(2)	6
Actuarial loss	1,799	1,169	3,598	2,338
Net periodic (benefit) cost	(1,706)	(1,480)	(3,414)	(2,960)
Pension Plan [Member] | Foreign Plan [Member]
Service cost	721	562	1,441	1,130
Interest cost	781	1,189	1,563	2,373
Expected return on assets	(2,798)	(2,606)	(5,596)	(5,193)
Prior service cost (benefit)	16	16	32	32
Actuarial loss	940	786	1,880	1,575
Net periodic (benefit) cost	(340)	(53)	(680)	(83)
Other Postretirement Benefits Plan [Member]
Service cost	18	25	37	49
Interest cost	284	388	567	775
Expected return on assets	(1,994)	(1,754)	(3,988)	(3,507)
Prior service cost (benefit)	0	0	0	0
Actuarial loss	16	9	31	17
Net periodic (benefit) cost	$ (1,676)	$ (1,332)	$ (3,353)	$ (2,666)