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Note 6 - Derivative Instruments and Hedging Activities (Details) (Swap [Member], USD $) In Millions, unless otherwise specified | 12 Months Ended |
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Aug. 27, 2011 | Aug. 31, 2013
Swap [Member] |  |
Note 6 - Derivative Instruments and Hedging Activities (Details) [Line Items] |  |
Derivative, Notional Amount |  | $ 100.0
Derivative, Fixed Interest Rate |  | 3.51%
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion | $ 1.8 |

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | na
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- Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Fixed interest rate related to the interest rate derivative. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition The effective portion of loss reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 + Details
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