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Note 6 - Inventories (Tables)
9 Months Ended
Mar. 31, 2019
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
March 31,
201
9
   
June 30,
201
8
 
Raw materials
  $
47,216
    $
46,833
 
Work in process
   
31,235
     
30,526
 
Finished goods
   
24,932
     
26,941
 
Total
  $
103,383
    $
104,300