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Income Taxes (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Sep. 01, 2012
Aug. 27, 2011
Income Taxes [Abstract]    
Provision for income taxes, interest and penalties $ 79 $ (26)
Accrued interest and penalties on income taxes 253 642
Unrecognized tax benefits related to tax positions $ 1,552