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Note 3 - Inventories (Tables)
6 Months Ended
Feb. 28, 2013
Inventory Disclosure [Text Block]  
Schedule of Inventory, Current [Table Text Block]
   
May 31, 2013
   
August 31, 2012
 
Production materials
  $ 1,140,800     $ 1,462,615  
Finished goods
    4,076,176       2,688,582  
    $ 5,216,976     $ 4,151,197