Note 6 - Inventories - Activity in Reserves for Excess Quantities and Obsolete Inventory by Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 28, 2020	Nov. 30, 2019	Nov. 24, 2018
Balance	$ 2,362	$ 1,766
Additions charged to expense	4,922	2,254	$ 2,309
Write-offs	(2,762)	(1,658)
Write-offs	(2,762)	(1,658)
Balance	4,522	2,362	1,766
Operating Segments [Member] | Wholesale Segment [Member]
Balance	2,054	1,500
Additions charged to expense	3,745	1,881
Write-offs	(2,378)	(1,327)
Write-offs	(2,378)	(1,327)
Balance	3,421	2,054	1,500
Operating Segments [Member] | Retail Segment [Member]
Balance	308	266
Additions charged to expense	1,177	373
Write-offs	(384)	(331)
Write-offs	(384)	(331)
Balance	$ 1,101	$ 308	$ 266