Percentage of voting equity interests acquired at the acquisition date in the business combination.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

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- Definition

Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 20
-Section 55
-Paragraph 24
-URI http://asc.fasb.org/extlink&oid=65896087&loc=d3e11374-113907

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- Definition

Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585

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Note 1 - Basis of Presentation (Details Textual) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Aug. 27, 2016	Aug. 27, 2016	Aug. 29, 2015	Feb. 28, 2015	Feb. 02, 2015	Feb. 01, 2015
Zenith Freight Lines [Member]
Equity Method Investment, Ownership Percentage						49.00%
Business Acquisition, Percentage of Voting Interests Acquired				51.00%	51.00%
Reclassification from Financing Activities to Operating Activities [Member] \| Six Months Ended May 30, 2015 [Member]
Payments Related to Tax Withholding for Share-based Compensation			$ 2,008
Excess Tax Benefit from Share-based Compensation, Operating Activities	$ (46)	$ (87)	(2,008)
Payments Related to Tax Withholding for Share-based Compensation		$ 77	$ 178