Annual report pursuant to Section 13 and 15(d)

Stock-based compensation - Assumptions for grant date fair value of the stock options (Details)

v3.22.1
Stock-based compensation - Assumptions for grant date fair value of the stock options (Details) - Stock Options
8 Months Ended
Jan. 31, 2022
Assumptions for grant date fair value of the stock options  
Risk-free interest rates 0.01%
Volatility factor, minimum 0.30%
Volatility factor, maximum 0.31%
Expected lives (years) 6 years 1 month 6 days