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Note 4 - Inventories (Tables)
12 Months Ended
Jun. 30, 2021
Notes Tables  
Schedule of Inventory, Current [Table Text Block]

June 30

 

2021

  

2020

 

Raw materials

 $47,000  $37,257 

Work in process

  22,539   25,527 

Finished goods

  22,323   22,247 

Total

 $91,862  $85,031