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Note 3 - Inventories (Tables)
12 Months Ended
Aug. 31, 2020
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
    August 31, 2020   August 31, 2019
Production materials   $
3,866,791
    $
1,980,816
 
Finished goods    
7,095,006
     
8,507,912
 
    $
10,961,796
    $
10,488,728