Note 5 - Inventories - Activity in Reserves for Excess Quantities and Obsolete Inventory by Segment (Details) - USD ($) $ in Thousands	9 Months Ended
	Aug. 29, 2020	Aug. 31, 2019
Balance	$ 2,362
Additions charged to expense	3,814	$ 1,753
Write-offs	(1,620)
Balance	4,556
Operating Segments [Member] | Wholesale Segment [Member]
Balance	2,054
Additions charged to expense	3,280
Write-offs	(1,491)
Balance	3,843
Operating Segments [Member] | Retail Segment [Member]
Balance	308
Additions charged to expense	534
Write-offs	(129)
Balance	$ 713