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Note 2 - Inventories (Tables)
15 Months Ended
Sep. 30, 2021
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

September 30,

   

June 30,

 
   

2021

   

2021

 
                 

Raw materials

  $ 10,236     $ 7,941  

Work-in-process

    1,344       2,942  

Finished goods

    1,042       812  

Total

  $ 12,622     $ 11,695