Note 2 - Acquisitions (Details) - Acquisitions (USD $) In Thousands, unless otherwise specified	12 Months Ended
Aug. 31, 2013	Aug. 27, 2011
Acquisitions [Abstract]
Number of businesses acquired	7	9
Tangible assets acquired	$ 7,494	$ 6,189
Intangible assets and goodwill acquired	23,326	26,367
Liabilities assumed	(106)
Acquisition of businesses	$ 30,714	$ 32,556

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The amount of acquisition cost of a business combination allocated to intangible assets and goodwill.

+ References

No definition available.

+ Details

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- Definition

Amount of assets acquired at the acquisition date.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Amount of liabilities assumed at the acquisition date.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 55

-Paragraph 37

-URI http://asc.fasb.org/extlink&oid=25498275&loc=d3e2207-128464

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

The number of businesses acquired by the entity during the period.

+ References

No definition available.

+ Details

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Period Type:	duration