v3.25.2
Stock-based compensation (Tables)
12 Months Ended
Mar. 31, 2025
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, 2025:
 
               
    Number
of
options
      Weighted-average
exercise price
      Weighted-average
Remaining
Contractual Term
(years)
    Aggregate Intrinsic
Value (in
thousands)
 
          $            
Outstanding, March 31, 2024
 721,793     3.68     9.08   527 
Granted
 213,130     2.98           
Outstanding, March 31, 2025
 934,923     3.52     8.26   24 
Exercisable, March 31, 2025
 586,478     3.96     8.08   20 
Weighted-Average Assumptions of Options Granted
The weighted-average grant date fair value of awards for options granted during the year ended March 31, 2025 was $2.53. 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, 2025     March 31, 2024  
  Weighted-
average
    Weighted-
average
 
Exercise price
$ 2.98     $ 2.50  
Share price
$ 2.98     $ 2.50  
Dividend
    —           —    
Risk-free interest
  4.42 %     3.95 %
Estimated life (years)
  5.81       5.62  
Expected volatility
  114.19 %     117.94 %
Compensation Expense Recognized Under 2024 Plan
Compensation expense recognized under the 2024 Plan is summarized as follows:
 
             
  March 31, 2025   March 31, 2024  
  $   $  
Research and development expenses
 216     198   
General and administrative expenses
 514     715   
   730     913