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Note 1 - Summary of Significant Accounting Policies (Details)
12 Months Ended
Oct. 27, 2014
shares
Aug. 29, 2015
USD ($)
$ / shares
shares
Aug. 30, 2014
USD ($)
$ / shares
shares
Aug. 31, 2013
USD ($)
$ / shares
shares
Aug. 29, 2009
Oct. 31, 2010
shares
Nov. 30, 1996
shares
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]              
Number of Reportable Segments   5          
Rental Merchandise Useful Life, Minimum   6 months          
Rental Merchandise Useful Life, Maximum   36 months          
Goodwill, Impairment Loss (in Dollars) | $   $ 0 $ 0 $ 0      
Finite-Lived Intangible Asset, Useful Life   14 years 109 days          
Site Contingency Discount Rate, Lower Range   2.20%          
Contingency Discount Rate, Upper Range   2.90%          
Site Contingency Discounted Period, Lower Range   10 years          
Site Contingency Discounted Period, Upper Range   30 years          
Environmental Contingencies Inflation Rate   3.00%          
Range of Years Discount for Estimated Future Costs to Decommission Its Nuclear Laundry Facilities, Minimum Years   6 years          
Range of Years Discount for Estimated Future Costs to Decommission Its Nuclear Laundry Facilities Maximum Years   29 years          
Estimated Impact Of Inflation Per Year   3.00%          
Credit Adjusted Risk Free Rates Minimum Rate   7.00%          
Credit Adjusted Risk Free Rates Maximum Rate   7.50%          
Undistributed Earnings of Foreign Subsidiaries (in Dollars) | $   $ 120,400,000          
Advertising Expense (in Dollars) | $   $ 1,300,000 $ 1,500,000 $ 1,200,000      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period   5 years          
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period   10 years          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share) | $ / shares   $ 40.06 $ 39.08 $ 25.09      
Common Stock, Conversion Basis   one-for-one          
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in Shares)   10,702 185 152      
Machinery and Equipment [Member]              
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]              
Capitalized Computer Software, Gross (in Dollars) | $   $ 39,300,000          
The 1996 Plan [Member]              
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]              
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)             1,500,000
The 2010 Plan [Member]              
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]              
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)           600,000  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized (in Shares) 750,000            
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares)   864,635          
Non-Employee Director Share-Based Award Grants Prior to Fiscal 2009 [Member]              
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]              
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period         10 years    
Non-Employee Director Share-Based Award Grants Beginning Fiscal 2009 [Member]              
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]              
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period   8 years          
Certain Share-Based Awards Granted During Fiscal 2014, 2013 and 2012 to Non-Employee Directors[Member]              
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]              
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period   8 years          
Customer Contracts [Member]              
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]              
Finite-Lived Intangible Asset, Useful Life   14 years 328 days          
Other Intangible Assets [Member]              
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]              
Finite-Lived Intangible Asset, Useful Life   5 years 109 days