Note 3 - Restructuring Actions - Restructuring Reserve (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Aug. 28, 2021	Nov. 27, 2021	Nov. 28, 2020	Nov. 30, 2019
Balance	$ 6,082	$ 6,082	$ 10,754
Restructuring Charges	787	787	4,579	$ 14,535
Cash payments	(5,624)		(9,408)
Foreign currency translation	(15)		157
Non-cash charges	(135)
Balance	1,095		6,082	10,754
Employee Related [Member]
Balance	5,834	5,834	9,830
Restructuring Charges	(807)		2,898
Cash payments	(3,917)		(7,051)
Foreign currency translation	(15)		157
Non-cash charges	0
Balance	1,095		5,834	9,830
Other Restructuring [Member]
Balance	248	$ 248	924
Restructuring Charges	1,594		1,681
Cash payments	(1,707)		(2,357)
Foreign currency translation	0		0
Non-cash charges	(135)
Balance	$ 0		$ 248	$ 924