Quarterly report [Sections 13 or 15(d)]

Equity - Warrant activity (Details)

v3.26.1
Equity - Warrant activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 9 Months Ended 12 Months Ended
Feb. 28, 2026
May 31, 2025
Equity    
Warrants outstanding beginning of period 213,128  
Granted 87,786  
Exercised (597)  
Forfeited, expired, and cancelled (105)  
Warrants outstanding at end of period 300,212 213,128
Warrants outstanding and exercisable 300,212  
Outstanding at the beginning of the year (in dollars per share) $ 0.27  
Granted (in dollars per share) 0.25  
Exercised (in dollars per share) 0.09  
Forfeited, expired, and cancelled (in dollars per share) 3.07  
Outstanding at the end of the year (in dollars per share) 0.26 $ 0.27
Warrants outstanding and exercisable (in dollars per share) $ 0.26  
Weighted average remaining contractual life in years 3 years 9 months 3 years 8 months 15 days
Weighted average remaining contractual life in years outstanding and exercisable 3 years 9 months  
Aggregate intrinsic value outstanding of beginning $ 27,923  
Aggregate intrinsic value exercised 129  
Aggregate intrinsic value outstanding of end period 13,391 $ 27,923
Aggregate intrinsic value outstanding and exercisable $ 13,391