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Note 2 - Acquisition (Details) - Estimated Fair Value of Net Assets Acquired and Liabilities Assumed (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Aug. 31, 2011
Aug. 28, 2013
Note 2 - Acquisition (Details) - Estimated Fair Value of Net Assets Acquired and Liabilities Assumed [Line Items]    
Gain on purchase $ 137  
Net cash paid for acquisition 600  
Unfavorable Leases [Member] | Franchise [Member]
    
Note 2 - Acquisition (Details) - Estimated Fair Value of Net Assets Acquired and Liabilities Assumed [Line Items]    
Unfavorable lease liability (220)  
Franchise [Member] | Franchise Rights [Member]
    
Note 2 - Acquisition (Details) - Estimated Fair Value of Net Assets Acquired and Liabilities Assumed [Line Items]    
Reacquired franchise agreement   200
Franchise [Member]
    
Note 2 - Acquisition (Details) - Estimated Fair Value of Net Assets Acquired and Liabilities Assumed [Line Items]    
Property and equipment   740
Gain on purchase (120)  
Net cash paid for acquisition $ 600