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Inventory
12 Months Ended
Apr. 30, 2022
Inventory Disclosure [Abstract]  
Inventory

(4) Inventory

 

The Company holds inventory related to the production of our WAM-V® products.

 

   April 30, 2022   April 30, 2021 
   (in thousands) 
Raw Materials  $198   $ 
Work in Process   244     
Inventory, net  $442   $