Note 3 - Restructuring Actions - Restructuring Reserve (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Aug. 28, 2021	Aug. 29, 2020	Aug. 28, 2021	Aug. 29, 2020	Nov. 28, 2020
Balance			$ 6,082	$ 10,754	$ 10,754
Expenses incurred	$ (192)	$ 989	1,447	1,422	4,579
Cash payments			(5,474)		(9,408)
Foreign currency translation			(63)		157
Non-cash charges			(135)
Balance	1,857		1,857		6,082
Employee Related [Member]
Balance			5,834	9,830	9,830
Expenses incurred			(147)		2,898
Cash payments			(3,767)		(7,051)
Foreign currency translation			(63)		157
Non-cash charges			0
Balance	1,857		1,857		5,834
Other Restructuring [Member]
Balance			248	$ 924	924
Expenses incurred			1,594		1,681
Cash payments			(1,707)		(2,357)
Foreign currency translation			0		0
Non-cash charges			(135)
Balance	$ 0		$ 0		$ 248