v3.26.1
Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Apr. 30, 2026
Accounting Policies [Abstract]  
Schedule of Revenue Recognized Under ASC 606 and ASC 842

The below table represents the total revenue recognized under ASC 606 and ASC 842 fiscal years ended April 30, 2026 and 2025:

 

   ASC 606   ASC 842   Total   ASC 606   ASC 842   Total 
   Fiscal year ended April 30, 2026   Fiscal year ended April 30, 2025 
   ASC 606   ASC 842   Total   ASC 606   ASC 842   Total 
   (in thousands)   (in thousands) 
Product Line:                              
WAM-V  $913   $477   $1,390   $4,216   $338   $4,554 
Buoy   203    162    365    474    115    589 
Services   1,982    —    1,982    718    —    718 
Total  $3,098   $639   $3,737   $5,408   $453   $5,861 
                               
Region:                              
North and South America  $994   $226   $1,220   $3,855   $—   $3,855 
EMEA   1,380    413    1,793    1,550    338    1,888 
Asia and Australia   724    —    724    3    115    118 
Total  $3,098   $639   $

3,737

   $5,408   $453   $5,861 
Schedule of Cash, Cash Equivalents and Restricted Cash

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the Consolidated Balance Sheets that total to the same amounts shown in the Consolidated Statements of Cash Flows.

 

   April 30, 2026   April 30, 2025 
   (in thousands) 
Cash and cash equivalents  $8,719   $6,715 
Restricted cash- short-term   154    — 
Restricted cash- long-term   —    154 
Cash, cash equivalents, restricted cash and restricted cash equivalents  $8,873   $6,869 
Schedule of Property and Equipment Estimated Useful Life

 

Description   Estimated useful life
     
Equipment   5-7 years
Computer equipment & software   3 years
Office furniture & fixtures   3-7 years
Leasehold improvements   Shorter of the estimated useful life or lease term
Leased Power Buoy assets   7 years
Leased WAM-V assets   7 years