v3.26.1
Stock-based compensation (Tables)
 12 Months Ended
Mar. 31, 2026
Stock-based compensation [Abstract]  
Activities of 2024 Plan and Prior Plans
The following table summarizes information about activities within the 2024 Plan and Prior Plans for the year ended March 31, 2026:
 
                 
     Number
of
options 		     Weighted-average
exercise price 		     Weighted-average
Remaining
Contractual Term
(years) 		     Aggregate Intrinsic
Value (in
thousands) 		 
         $           
Outstanding, March 31, 2025
  934,923    3.52    8.26    24 
Granted
  431,530    2.30            
Forfeited/Cancelled
  (21,000)    2.87           
Outstanding, March 31, 2026
  1,345,453    3.14    7.88    2,562 
Exercisable, March 31, 2026
  942,632    3.46    7.52    1,659 
Weighted-Average Assumptions of Options Granted
The weighted-average grant date fair value of awards for options granted during the year ended March 31, 2026 was $1.85. The fair value of options granted was estimated using the Black-Scholes option pricing model, resulting in the following weighted-average assumptions for the options granted:
 
         
     March 31,
2026 		     March 31,
2025 		 
     Weighted-
average 		     Weighted-
average 		 
Exercise price
 $2.30   $2.98 
Share price
 $2.30   $2.98 
Dividend
   —      —  
Risk-free interest
  3.97%   4.42%
Estimated life (years)
  5.69    5.81 
Expected volatility
  106.74%   114.19%
Compensation Expense Recognized Under 2024 Plan
Compensation expense recognized under the 2024 Plan is summarized as follows:
 
         
     March 31, 2026      March 31, 2025  
     $      $  
Research and development expenses
  218     216  
General and administrative expenses
  580     514  
    798     730