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Note 3 - Inventories (Tables)
6 Months Ended
Feb. 29, 2020
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
    February 29, 2020   August 31, 2019
Production materials   $
3,908,268
    $
1,980,816
 
Finished goods    
7,516,116
     
8,507,912
 
    $
11,424,384
    $
10,488,728