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Property and Equipment, net (Tables)
9 Months Ended
Jan. 31, 2023
Property, Plant and Equipment [Abstract]  
Schedule of Components of Property and Equipment

The components of property and equipment, net as of January 31, 2023 and April 30, 2022 consisted of the following:

 

   January 31,
2023
   April 30,
2022
 
   (in thousands) 
Equipment  $869   $615 
Computer equipment & software   623    571 
Office furniture & equipment   59    352 
Leasehold improvements   538    477 
Construction in process   15    15 
Property and equipment, gross   2,104    2,030 
Less: accumulated depreciation   (1,513)   (1,585)
Property and equipment, net  $591   $445