Note 8 - Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill by Reportable Segment (Details) - USD ($) $ in Thousands	12 Months Ended
Nov. 26, 2016	Nov. 28, 2015
Balance	$ 11,588	$ 1,730
Goodwill arising from acquisition of Zenith		9,858
Balance	11,588	11,588
Changes during fiscal 2016 (none)
Wholesale Segment [Member]
Balance	4,839	1,128
Goodwill arising from acquisition of Zenith		3,711
Balance	4,839	4,839
Changes during fiscal 2016 (none)
Retail Segment [Member]
Balance	1,820	602
Goodwill arising from acquisition of Zenith		1,218
Balance	1,820	1,820
Changes during fiscal 2016 (none)
Logistical Services [Member]
Balance	4,929
Goodwill arising from acquisition of Zenith		4,929
Balance	4,929	$ 4,929
Changes during fiscal 2016 (none)

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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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