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Note 11 - Share-based Compensation (Details) (USD $) In Millions, except Share data, unless otherwise specified |  |  | 12 Months Ended | 0 Months Ended | 12 Months Ended
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Aug. 30, 2014 | Apr. 05, 2010 | Aug. 30, 2014 Unrestricted Stock [Member] | Aug. 31, 2013 Unrestricted Stock [Member] | Aug. 25, 2012 Unrestricted Stock [Member] | Aug. 30, 2014 Stock Appreciation Rights (SARs) [Member] The 2010 Plan [Member] | Aug. 31, 2013 Stock Appreciation Rights (SARs) [Member] The 2010 Plan [Member] | Aug. 25, 2012 Stock Appreciation Rights (SARs) [Member] The 2010 Plan [Member] | Apr. 05, 2010 Performance Restriced Shares [Member] Chief Executive Officer [Member] | Apr. 05, 2010 Restricted Stock [Member] Chief Executive Officer [Member] | Aug. 30, 2014 Restricted Stock [Member] | Aug. 30, 2014 Share Based Awards [Member]
Note 11 - Share-based Compensation (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |  |  | 583 | 1,590 | 3,153 | 4,700 | 6,570 | 8,620 | 350,000 | 50,000 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period |  |  |  |  |  |  |  |  | 4 years | 6 years |  |
Share Price (in Dollars per share) |  | $ 51.39 |  |  |  |  |  |  |  |  |  |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars) | $ 7.9 |  |  |  |  |  |  |  |  |  |  |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition |  |  |  |  |  |  |  |  |  |  | 1 year 36 days | 2 years 109 days

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- Definition Unrecognized cost of unvested share-based compensation awards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Price of a single share of a number of saleable stocks of a company. + References No definition available. + Details
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