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

December 31, 2022

   

March 31, 2022

 

Raw materials

  $ 18,122     $ 11,020  

Work-in-process

    12,496       10,462  

Finished goods

    7,146       1,326  

Deferred program costs

    961       858  

Net inventory

  $ 38,725     $ 23,666