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Note 9 - Inventory (Tables)
6 Months Ended
Sep. 30, 2021
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
  

September 30, 2021

  

March 31, 2021

 

Raw materials

 $11,396  $8,255 

Work-in-process

  7,533   3,297 

Finished goods

  1,815   777 

Deferred program costs

  830   977 

Net inventory

 $21,574  $13,306