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Note 5 - Patents and Trademarks, Net (Tables)
6 Months Ended
Feb. 28, 2015
Disclosure Text Block [Abstract]  
Schedule of Finite-Lived Intangible Assets [Table Text Block]
   
February 28, 2015
   
August 31, 2014
 
Patents and trademarks
  $ 2,394,546     $ 2,287,840  
Less accumulated amortization
    (1,133,972 )     (1,090,140 )
    $ 1,260,574     $ 1,197,700