Commitments And Contingencies (Narrative) (Details) (USD $) In Thousands	12 Months Ended
Aug. 27, 2011	Aug. 28, 2010	Aug. 29, 2009
Lease expiration date	2030
Rental expense, operating leases	$ 10,716	$ 9,646	$ 9,694
Related Party Commitments [Member]
Rental expense, operating leases	$ 2,247	$ 2,310	$ 2,301
Equipment And Automobile [Member]
Lease expiration date	2015

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

Name:	us-gaap_OperatingLeasesRentExpenseNet
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration