Note 7 - 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		9 Months Ended
	Sep. 02, 2023	Aug. 27, 2022	Sep. 02, 2023	Aug. 27, 2022
UNITED STATES
Net periodic (benefit) cost	$ (3,095)	$ (3,737)	$ (9,285)	$ (11,212)
Foreign Plan [Member]
Net periodic (benefit) cost	613	405	1,821	4,580
Pension Plan [Member] | UNITED STATES
Service cost	0	0	0	0
Interest cost	3,475	2,368	10,426	7,103
Expected return on assets	(7,205)	(7,117)	(21,617)	(21,353)
Prior service (benefit) cost	0	(1)	0	(2)
Actuarial loss (gain)	635	1,013	1,906	3,040
Settlement charge	0	0	0	0
Pension Plan [Member] | Foreign Plan [Member]
Service cost	422	666	1,255	2,086
Interest cost	1,454	679	4,300	2,204
Expected return on assets	(1,785)	(1,525)	(5,277)	(4,916)
Prior service (benefit) cost	16	15	47	47
Actuarial loss (gain)	506	570	1,496	1,830
Settlement charge	0	0	0	3,329
Other Postretirement Benefits Plan [Member]
Service cost	0	0	0	0
Interest cost	301	184	903	551
Expected return on assets	(2,465)	(2,719)	(7,394)	(8,156)
Prior service (benefit) cost	0	0	0	0
Actuarial loss (gain)	0	(845)	0	(2,535)
Settlement charge	0	0	0	0
Net periodic (benefit) cost	$ (2,164)	$ (3,380)	$ (6,491)	$ (10,140)