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Note 3 - Inventories (Tables)
6 Months Ended
Feb. 28, 2017
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
    February 28, 2017   August 31, 2016
Production materials   $
1,302,043
    $
1,452,396
 
Finished goods    
6,750,164
     
6,258,891
 
    $
8,052,207
    $
7,711,287