Note 4 - Supplemental Financial Statement Information - Statement of Income Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2024	Dec. 02, 2023	Dec. 03, 2022
Foreign currency transaction losses, net	$ (2,501)	$ (11,615)	$ (12,935)
Gain (loss) on disposal of assets	424	(58)	1,416
Net periodic pension benefit	15,920	20,246	26,787
Loss on impairment of assets held for sale	(47,267)	0	0
Other, net	(3,691)	1,109	(2,316)
Total other (expense) income, net	(37,115)	9,682	12,952
Selling, General and Administrative Expenses [Member]
Research and development expenses (included in SG&A expenses)	$ 49,565	$ 48,640	$ 44,853