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Note 3 - Inventories (Tables)
3 Months Ended
Nov. 30, 2016
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
    November 30, 2016   August 31, 2016
Production materials   $
1,327,035
    $
1,452,396
 
Finished goods    
6,061,060
     
6,258,891
 
    $
7,388,095
    $
7,711,287