Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Schedule of unvested restricted stock (Details)

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Stockholders' Equity - Schedule of unvested restricted stock (Details) - Restricted stock units - $ / shares
6 Months Ended
Jul. 31, 2022
Aug. 01, 2021
Number of shares    
Number of shares, unvested, beginning balance (in shares) 533,333 655,558
Number of shares, granted (in shares) 278,087 63,456
Number of shares, forfeited (in shares) (21,243) (7,904)
Number of shares, vested (in shares) (102,649) (153,089)
Number of shares, unvested, ending balance (in shares) 687,528 558,021
Weighted average grant date fair value    
Weighted average grant date fair value, unvested, beginning balance (in dollars per share) $ 28.41 $ 18.86
Weighted average grant date fair value, granted (in dollars per share) 45.58 80.40
Weighted average grant date fair value, forfeited (in dollars per share) 23.12 19.27
Weighted average grant date fair value, vested (in dollars per share) 34.86 20.20
Weighted average grant date fair value, unvested, ending balance (in dollars per share) $ 34.87 $ 25.52