Note 6 - Goodwill and Other Intangible Assets - Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	Feb. 27, 2021	Nov. 28, 2020
Intangibles subject to amortization, Gross Carrying Amount	$ 4,384	$ 4,384
Intangibles subject to amortization, Accumulated Amortization	(2,136)	(2,041)
Intangibles subject to amortization, Intangible Assets, Net	2,248	2,343
Trade names	9,338	9,338
Goodwill	12,146	12,146
Total goodwill and other intangible assets	23,732	23,827
Customer Relationships [Member]
Intangibles subject to amortization, Gross Carrying Amount	3,550	3,550
Intangibles subject to amortization, Accumulated Amortization	(1,411)	(1,346)
Intangibles subject to amortization, Intangible Assets, Net	2,139	2,204
Technology-Based Intangible Assets [Member]
Intangibles subject to amortization, Gross Carrying Amount	834	834
Intangibles subject to amortization, Accumulated Amortization	(725)	(695)
Intangibles subject to amortization, Intangible Assets, Net	$ 109	$ 139