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Stock-based Compensation - Components of Compensation Expense (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 31, 2021
Aug. 01, 2020
Jul. 31, 2021
Aug. 01, 2020
Share-based Payment Arrangement [Abstract]        
Stock options $ 0 $ 0 $ 174 $ 90
Restricted stock units 1,092 587 2,880 1,647
Employee stock purchases 24 27 108 70
Director deferred compensation 15 23 21 47
Total stock-based compensation expense 1,131 637 3,183 1,854
Income tax benefit recognized 279 168 758 423
Stock-based compensation expense, net of income tax $ 852 $ 469 $ 2,425 $ 1,431