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Note 6 - Inventories (Tables)
3 Months Ended
Sep. 30, 2020
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
  September 30, 2020  June 30, 2020 
Raw materials $38,364  $37,257 
Work in process  25,755   25,527 
Finished goods  28,055   22,247 

Total

 $92,174  $85,031