v3.26.1
Significant Accounting Policies - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended
Jul. 31, 2026
Jul. 31, 2025
Apr. 30, 2026
Accounting Policies [Abstract]      
Net income (loss) $ (426) $ (466)  
Retained earnings (accumulated deficit) (81,493)   $ (81,067)
Working capital deficit 563    
Cash and cash equivalents $ 4,358   $ 4,872