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Note 4 - Inventories (Tables)
12 Months Ended
Jun. 30, 2020
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
(In thousands)
 
June 30, 2020
   
June 30, 2019
 
                 
Inventories:
               
Raw materials
 
$
27,331
    $
27,927
 
Work-in-progress
 
 
1,566
     
2,193
 
Finished goods
 
 
9,855
     
13,392
 
Total Inventories
 
$
38,752
    $
43,512