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Note 3 - Inventories (Tables)
3 Months Ended
Nov. 30, 2019
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
    November 30, 2019   August 31, 2019
Production materials   $
3,562,440
    $
1,980,816
 
Finished goods    
7,697,009
     
8,507,912
 
    $
11,259,449
    $
10,488,728