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Note 2 - Inventories (Tables)
9 Months Ended
Mar. 31, 2022
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

March 31,

   

June 30,

 
   

2022

   

2021

 
                 

Raw materials

  $ 9,766     $ 7,941  

Work-in-process

    2,137       2,942  

Finished goods

    1,193       812  

Total

  $ 13,096     $ 11,695