Quarterly report [Sections 13 or 15(d)]

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

v3.25.2
Note 9 - Stock-based Compensation - Summary of RSU Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 6 Months Ended
Jul. 31, 2025
Jan. 31, 2025
Forfeited, shares (in shares) (38,387)  
Forfeited, weighted average grant date fair value (in dollars per share) $ 75.42  
Forfeited, shares (in shares) (38,387)  
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 $ 21,859 $ 41,708
Granted, shares (in shares) 633,123  
Granted, weighted average grant date fair value (in dollars per share) $ 18.31  
Vested, shares (in shares) (321,329)  
Vested, weighted average grant date fair value (in dollars per share) $ 27.4  
Forfeited, shares (in shares) (169,188)  
Forfeited, weighted average grant date fair value (in dollars per share) $ 24.92  
Unvested balance, shares (in shares) [1] 1,532,879  
Unvested balance, weighted average grant date fair value (in dollars per share) $ 20.97  
Forfeited, shares (in shares) (169,188)  
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 $ 600 3,178
Granted, shares (in shares) 3,333  
Granted, weighted average grant date fair value (in dollars per share) $ 12.94  
Vested, shares (in shares) (29,676)  
Vested, weighted average grant date fair value (in dollars per share) $ 38  
Unvested balance, shares (in shares) 41,193  
Unvested balance, weighted average grant date fair value (in dollars per share) $ 63.36  
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 $ 4,710 $ 1,538
Granted, shares (in shares) [2] 314,139  
Granted, weighted average grant date fair value (in dollars per share) $ 20.08  
Vested, shares (in shares) (7,968)  
Vested, weighted average grant date fair value (in dollars per share) $ 19.54  
Forfeited, shares (in shares) (33,907)  
Forfeited, weighted average grant date fair value (in dollars per share) $ 19.35  
Unvested balance, shares (in shares) 323,514  
Unvested balance, weighted average grant date fair value (in dollars per share) $ 19.7  
Forfeited, shares (in shares) (33,907)  
[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.