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Note 4 - Inventories (Tables)
9 Months Ended
Mar. 31, 2018
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
March 31,
2018
   
June 30,
201
7
 
Raw materials
  $
61,485
    $
53,313
 
Work in process
   
33,992
     
28,110
 
Finished goods
   
36,112
     
37,978
 
Total
  $
131,589
    $
119,401