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Property and Equipment, net (Tables)
3 Months Ended
Jul. 31, 2025
Property, Plant and Equipment [Abstract]  
Schedule of Components of Property and Equipment, Net

The components of property and equipment, net as of July 31, 2025 and April 30, 2025 consisted of the following:

 

   July 31, 2025   April 30, 2025 
   (in thousands) 
Equipment  $2,088   $1,569 
Computer equipment & software   629    620 
Office furniture & equipment   425    425 
Leasehold improvements   683    683 
Leased WAM-V’s   1,735    1,735 
Leased Buoys   1,874    949 
Property and equipment, gross   7,434    5,981 
Less: accumulated depreciation   (2,731)   (2,537)
Property and equipment, net  $4,703   $3,444