Note 3 - Restructuring Actions - Restructuring Reserve (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Feb. 27, 2021	Feb. 29, 2020	Nov. 28, 2020
Balance	$ 6,082	$ 10,754	$ 10,754
Expenses incurred	1,817	43	4,579
Cash payments	(3,562)		(9,408)
Foreign currency translation	11		157
Non-cash charges	(135)
Balance	4,213		6,082
Employee Related [Member]
Balance	5,834	9,830	9,830
Expenses incurred	223		2,898
Cash payments	(1,979)		(7,051)
Foreign currency translation	11		157
Non-cash charges	0
Balance	4,089		5,834
Asset Related [Member]
Balance	0	0	0
Expenses incurred	135		0
Cash payments	0		0
Foreign currency translation	0		0
Non-cash charges	(135)
Balance	0		0
Other Restructuring [Member]
Balance	248	$ 924	924
Expenses incurred	1,459		1,681
Cash payments	(1,583)		(2,357)
Foreign currency translation	0		0
Non-cash charges	0
Balance	$ 124		$ 248