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Consolidated Statements of Operations (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Jul. 31, 2025
Jul. 31, 2024
Income Statement [Abstract]    
Revenues $ 1,182 $ 1,301
Cost of revenues 1,205 854
Gross margin (23) 447
Operating expenses 7,055 4,920
Operating loss (7,078) (4,473)
Interest (expense)/income, net (310) 3
Other income, net 17
Loss before income taxes (7,388) (4,453)
Income tax benefit
Net loss $ (7,388) $ (4,453)
Basic net loss per common share $ (0.04) $ (0.05)
Diluted net loss per common share $ (0.04) $ (0.05)
Weighted average shares used to compute basic net loss per common share 172,969,163 81,951,002
Weighted average shares used to compute diluted net loss per common share 172,969,163 81,951,002