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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Name:	us-gaap_GoodwillImpairmentLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Note 6 - Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 29, 2020	Aug. 31, 2019	Aug. 29, 2020	Aug. 31, 2019	Nov. 30, 2019
Balance			$ 14,117
Goodwill impairment	$ 0	$ 0	(1,971)	$ 0
Balance	12,146		12,146
Goodwill, accumulated impairment loss	3,897		3,897		$ 1,926
Wholesale Segment [Member]
Balance			9,188
Goodwill impairment			(1,971)
Balance	7,217		7,217
Goodwill, accumulated impairment loss	1,971		1,971		0
Retail Segment [Member]
Balance			0
Goodwill impairment			0
Balance	0		0
Goodwill, accumulated impairment loss	1,926		1,926		1,926
Logistical Services [Member]
Balance			4,929
Goodwill impairment			0
Balance	4,929		4,929
Goodwill, accumulated impairment loss	$ 0		$ 0		$ 0