Note 11 - Impairment of Long-Lived Assets, Discontinued Operations and Property Held for Sale (Details) - Rollforward of Property Held for Sale (USD $) In Thousands, unless otherwise specified	12 Months Ended
Aug. 28, 2013	Aug. 29, 2012	Aug. 31, 2011	Aug. 24, 2010
Rollforward of Property Held for Sale [Abstract]
Balance	$ 602	$ 1,046		$ 1,828
Disposals		(444)	(754)
Net impairment charges	(153)		(28)
Balance	$ 449	$ 602	$ 1,046	$ 1,828

The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 45

-Paragraph 15

-URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2611-110228

Name:	us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration