Quarterly report [Sections 13 or 15(d)]

Note 9 - Stock-based Compensation - Summary of RSU Activity (Details)

v3.25.1
Note 9 - Stock-based Compensation - Summary of RSU Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended
Apr. 30, 2025
Jan. 31, 2025
Forfeited, shares (in shares) 0  
Forfeited, weighted average grant date fair value (in dollars per share) $ 0  
Forfeited, shares (in shares) 0  
Restricted Stock Units (RSUs) [Member]    
Unvested balance, shares (in shares) 1,390,273  
Unvested balance, weighted average grant date fair value (in dollars per share) $ 24.15  
Unvested balance, aggregate intrinsic value $ 32,651 $ 41,708
Granted, shares (in shares) 359,450  
Granted, weighted average grant date fair value (in dollars per share) $ 17.51  
Vested, shares (in shares) (37,518)  
Vested, weighted average grant date fair value (in dollars per share) $ 24.46  
Forfeited, shares (in shares) (5,407)  
Forfeited, weighted average grant date fair value (in dollars per share) $ 59.21  
Unvested balance, shares (in shares) [1] 1,706,798  
Unvested balance, weighted average grant date fair value (in dollars per share) $ 22.63  
Forfeited, shares (in shares) (5,407)  
Market-based Restricted Stock Units (MBRSUs) [Member]    
Unvested balance, shares (in shares) 105,923  
Unvested balance, weighted average grant date fair value (in dollars per share) $ 62.21  
Unvested balance, aggregate intrinsic value $ 2,026 3,178
Granted, shares (in shares) 0  
Granted, weighted average grant date fair value (in dollars per share) $ 0  
Vested, shares (in shares) 0  
Vested, weighted average grant date fair value (in dollars per share) $ 0  
Unvested balance, shares (in shares) 105,923  
Unvested balance, weighted average grant date fair value (in dollars per share) $ 62.21  
Performance-based Restricted Stock Units [Member]    
Unvested balance, shares (in shares) 51,250  
Unvested balance, weighted average grant date fair value (in dollars per share) $ 17.12  
Unvested balance, aggregate intrinsic value $ 3,233 $ 1,538
Granted, shares (in shares) [2] 121,500  
Granted, weighted average grant date fair value (in dollars per share) $ 17.45  
Vested, shares (in shares) 0  
Vested, weighted average grant date fair value (in dollars per share) $ 0  
Forfeited, shares (in shares) (3,750)  
Forfeited, weighted average grant date fair value (in dollars per share) $ 11.25  
Unvested balance, shares (in shares) 169,000  
Unvested balance, weighted average grant date fair value (in dollars per share) $ 17.49  
Forfeited, shares (in shares) (3,750)  
[1] Includes 19,806 shares, which are vested, but have been elected to be deferred by the recipients.
[2] Reflects the number of shares that would vest based on achieving the “Target” level of performance.