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Note 5 - Inventories (Tables)
9 Months Ended
Mar. 31, 2019
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
March 31,
   
June 30,
 
(In thousands)
 
2019
   
2018
 
                 
Inventories:
               
Raw materials
  $
32,669
    $
31,795
 
Work-in-process
   
2,363
     
3,833
 
Finished goods
   
16,589
     
15,366
 
Total Inventories
  $
51,621
    $
50,994