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Note 6 - Inventories (Tables)
3 Months Ended
Sep. 30, 2018
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
September
3
0
,
201
8
   
June 30,
201
8
 
Raw materials
  $
52,993
    $
46,833
 
Work in process
   
31,580
     
30,526
 
Finished goods
   
27,114
     
26,941
 
Total
  $
111,687
    $
104,300