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Note 3 - Inventories (Tables)
9 Months Ended
May 31, 2020
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
    May 31, 2020   August 31, 2019
Production materials   $
3,898,782
    $
1,980,816
 
Finished goods    
8,181,983
     
8,507,912
 
    $
12,080,765
    $
10,488,728