Note 8 - Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
May 30, 2020	Nov. 30, 2019	Nov. 28, 2020	Nov. 30, 2019	Nov. 24, 2018
Balance			$ 14,117	$ 16,043
Goodwill impairment	$ (1,971)	$ (1,926)	(1,971)	(1,926)	$ 0
Balance		14,117	12,146	14,117	16,043
Wholesale Segment [Member]
Balance			9,188	9,188
Goodwill impairment			(1,971)	0
Balance		9,188	7,217	9,188	9,188
Retail Segment [Member]
Balance			0	1,926
Goodwill impairment			0	(1,926)
Balance		0	0	0	1,926
Logistical Services [Member]
Balance			4,929	4,929
Goodwill impairment			0	0
Balance		$ 4,929	$ 4,929	$ 4,929	$ 4,929

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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