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Note 4 - Inventories (Tables)
6 Months Ended
Dec. 31, 2018
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
December
3
1
,
   
June 30,
 
   
2018
   
2018
 
Raw materials
  $
244,773
    $
195,674
 
Supplies and packing materials
   
173,118
     
142,257
 
Finished goods
   
802,011
     
593,134
 
Total
  $
1,219,902
    $
931,065