Note 6 - Inventories - Activity in Reserves for Excess Quantities and Obsolete Inventory by Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 25, 2017	Nov. 26, 2016
Balance	$ 1,350	$ 1,397
Additions charged to expense	2,232	2,469
Write-offs	(1,687)	(2,516)
Balance	1,895	1,350
Operating Segments [Member] | Wholesale Segment [Member]
Balance	1,061	1,087
Additions charged to expense	1,757	1,994
Write-offs	(1,200)	(2,020)
Balance	1,618	1,061
Operating Segments [Member] | Retail Segment [Member]
Balance	289	310
Additions charged to expense	475	475
Write-offs	(487)	(496)
Balance	$ 277	$ 289