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Sale Of Japan Product Sales Operation (Narrative) (Details)
12 Months Ended
Aug. 31, 2010
USD ($)
Aug. 31, 2010
JPY (¥)
Sale Of Japan Product Sales Operation [Abstract]    
Aggregate carrying value of inventory, certain intangible assets (including customer lists), and other current assets disposed in sale $ 2,000,000  
Total sale price 3,350,000 305,000,000
Pre-tax gain from the sale $ 1,092,000  
Royalty rate on annual sales 3.00% 3.00%