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Note 4 - Inventories (Tables)
6 Months Ended
Dec. 31, 2017
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
December 31
,
201
7
   
June 30,
201
7
 
Raw materials
  $
59,175
    $
53,313
 
Work in process
   
35,093
     
28,110
 
Finished goods
   
36,447
     
37,978
 
Total
  $
130,715
    $
119,401