v3.26.3
Note 18 - Stockholders' Equity - Options Activity (Details) - USD ($)
 6 Months Ended 12 Months Ended
Aug. 31, 2026
Feb. 28, 2026
Feb. 28, 2025
Options outstanding, options (in shares) 914,825 76,342  
Options outstanding, weighted average exercise price (in dollars per share) $ 4.39 $ 52.69  
Options outstanding, weighted average remaining contractual term (Year) 1 year 9 months 18 days 2 years 3 months 10 days 1 year 7 months 6 days
Options outstanding, aggregate intrinsic value $ 0 $ 0 $ 0
Granted, options (in shares) 200,000 914,825  
Granted, weighted average exercise price (in dollars per share) $ 2.64 $ 4.39  
Granted, weighted average remaining contractual term (Year) 2 years 11 months 8 days 2 years 3 months 10 days  
Exercised (in shares) 0 0  
Exercised, weighted average exercise price (in dollars per share) $ 0 $ 0  
Forfeited or cancelled, options (in shares) (175,000) (76,342)  
Forfeited or cancelled, weighted average exercise price (in dollars per share) $ 2.64 $ 52.69  
Options outstanding, options (in shares) 939,825 914,825 76,342
Options outstanding, weighted average exercise price (in dollars per share) $ 4.35 $ 4.39 $ 52.69
Options expected to vest in the future (in shares) 0    
Options expected to vest in the future, weighted average exercise price (in dollars per share) $ 0    
Options expected to vest in the future, aggregate intrinsic value $ 0    
Options exercisable, options (in shares) 939,825    
Options exercisable, weighted average exercise price (in dollars per share) $ 4.35    
Options exercisable, weighted average remaining contractual term (Year) 1 year 9 months 18 days    
Options exercisable, aggregate intrinsic value $ 0    
Options vested, exercisable, and options expected to vest (in shares) 939,825    
Options vested, exercisable, and options expected to vest, weighted average exercise price (in dollars per share) $ 4.35    
Options vested, exercisable, and options expected to vest, weighted average remaining contractual term (Year) 1 year 9 months 18 days    
Options vested, exercisable, and options expected to vest, aggregate intrinsic value $ 0