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Note 3 - Inventories (Tables)
9 Months Ended
May 31, 2017
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
    May 31, 2017   August 31, 2016
Production materials   $
1,454,328
    $
1,452,396
 
Finished goods    
6,425,328
     
6,258,891
 
    $
7,879,656
    $
7,711,287