Note 6 - Income Taxes (Details) - Reconciliation of the Total Amounts of Unrecognized Tax Benefits (USD $) In Thousands, unless otherwise specified	12 Months Ended
Aug. 27, 2014	Aug. 28, 2013	Aug. 29, 2012
Reconciliation of the Total Amounts of Unrecognized Tax Benefits [Abstract]
Balance a	$ 769	$ 970	$ 83
Increase (decrease) based on prior year tax positions	(707)	(273)	480
Interest Expense		72	407
Balance a	$ 62	$ 769	$ 970

Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

Name:	us-gaap_UnrecognizedTaxBenefits
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant