Note 6 - Notes Receivable (Detail) - The average recorded investment in the impaired notes by class (USD $) In Thousands, unless otherwise specified	Aug. 25, 2012
Impaired notes	$ 583
Secured by Real Estate [Member]
Impaired notes	583
Unsecured [Member]
Impaired notes	0
Due From Current Licensees [Member]
Impaired notes	$ 0

Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 14A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953550-111524

Name:	us-gaap_ImpairedFinancingReceivableRecordedInvestment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant