Current report filing

Stock-based compensation - Stock option activity (Details)

v3.22.2.2
Stock-based compensation - Stock option activity (Details) - Stock Options - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
Apr. 30, 2022
Apr. 30, 2021
Jan. 31, 2022
Shares      
Outstanding at beginning of period (in shares) 2,825,752    
Outstanding at end period (in shares) 2,825,752   2,825,752
Vested and exercisable (in shares) 187,500    
Weighted Average Exercise Price      
Weighted Average Exercise Price Outstanding at beginning period (in dollars per share) $ 10.76    
Weighted Average Exercise Price Outstanding at end period (in dollars per share) 10.76   $ 10.76
Weighted Average Exercise Price Vested and Exercisable (in dollars per share) $ 10.75    
Weighted Average Remaining Contractual Term (Years)      
Weighted Average Remaining Contractual Term Outstanding (in Years)   9 years 2 months 12 days 9 years 4 months 24 days
Aggregate Intrinsic Value      
Unrecognized equity-based compensation costs $ 7.6    
Cost expected to be recognized over a weighted-average period 3 years 2 months 12 days