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Note 4 - Inventories (Tables)
9 Months Ended
Mar. 31, 2019
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
March 31,
   
June 30,
 
   
201
9
   
201
8
 
Raw materials
  $
247,277
    $
195,674
 
Supplies and packing materials
   
166,693
     
142,257
 
Finished goods
   
798,106
     
593,134
 
Total
  $
1,212,076
    $
931,065