Quarterly report pursuant to Section 13 or 15(d)

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

v3.24.1.1.u2
Note 9 - Stock-based Compensation - Summary of RSU Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended
Apr. 30, 2024
Jan. 31, 2024
Forfeited, shares (in shares) (589)  
Forfeited, weighted average grant date fair value (in dollars per share) $ 46.92  
Forfeited, shares (in shares) (589)  
Restricted Stock Units (RSUs) [Member]    
Unvested balance, shares (in shares) 735,998  
Unvested balance, weighted average grant date fair value (in dollars per share) $ 64.77  
Unvested balance, aggregate intrinsic value $ 5,030 $ 10,319
Granted, shares (in shares) 0  
Granted, weighted average grant date fair value (in dollars per share) $ 0  
Vested, shares (in shares) (20,596)  
Vested, weighted average grant date fair value (in dollars per share) $ 135.11  
Forfeited, shares (in shares) (15,819)  
Forfeited, weighted average grant date fair value (in dollars per share) $ 71.72  
Unvested balance, shares (in shares) 699,583  
Unvested balance, weighted average grant date fair value (in dollars per share) $ 62.55  
Forfeited, shares (in shares) (15,819)  
Market-based Restricted Stock Units (MBRSUs) [Member]    
Unvested balance, shares (in shares) 182,742  
Unvested balance, weighted average grant date fair value (in dollars per share) $ 72.6  
Unvested balance, aggregate intrinsic value $ 1,310 $ 2,562
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) 182,153  
Unvested balance, weighted average grant date fair value (in dollars per share) $ 72.68