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Note 3 - Inventories (Tables)
12 Months Ended
Aug. 31, 2017
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
    August 31, 2017   August 31, 2016
Production materials   $
1,747,189
    $
1,452,396
 
Finished goods    
5,709,636
     
6,258,891
 
    $
7,456,552
    $
7,711,287