Note 3 - Restructuring Actions - Restructuring Charges (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
Aug. 29, 2020	Aug. 31, 2019	Aug. 29, 2020	Aug. 31, 2019	Nov. 30, 2019
Expenses incurred	$ 989	$ 2,902	$ 1,422	$ 5,639	$ 14,535
Cost of Sales [Member]
Expenses incurred	371	287	438	1,281
Selling, General and Administrative Expenses [Member]
Expenses incurred	$ 618	$ 2,615	$ 984	$ 4,358

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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