Note 8 - Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill by Reportable Segment (Details) - USD ($) $ in Thousands	12 Months Ended
Nov. 30, 2019	Nov. 24, 2018	Nov. 25, 2017
Balance	$ 16,043	$ 11,900
Goodwill arising from Lane Venture acquisition (Note 3)		4,143
Goodwill impairment	(1,926)	0	$ 0
Balance	14,117	16,043	11,900
Wholesale Segment [Member]
Balance	9,188	5,045
Goodwill arising from Lane Venture acquisition (Note 3)		4,143
Goodwill impairment	0
Balance	9,188	9,188	5,045
Retail Segment [Member]
Balance	1,926	1,926
Goodwill arising from Lane Venture acquisition (Note 3)		0
Goodwill impairment	(1,926)
Balance	0	1,926	1,926
Logistical Services [Member]
Balance	4,929	4,929
Goodwill arising from Lane Venture acquisition (Note 3)		0
Goodwill impairment	0
Balance	$ 4,929	$ 4,929	$ 4,929

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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