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Note 4 - Inventories (Tables)
3 Months Ended
Sep. 30, 2022
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
  

September 30,

  

June 30,

 
  

2022

  

2022

 

Raw materials

 $1,304,289  $1,273,581 

Supplies and packing materials

  172,877   195,207 

Finished goods

  806,372   731,954 

Total inventories

 $2,283,538  $2,200,742