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Share-Based Compensation - Share-Based Compensation Expense (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 31, 2020
Nov. 02, 2019
Oct. 31, 2020
Nov. 02, 2019
Share-based Compensation [Abstract]        
Stock Options $ 126 $ 148 $ 390 $ 487
Restricted Stock Awards and Restricted Stock Units 462 371 1,284 1,074
Employee Stock Purchase Plan 3 6 13 15
Total $ 591 $ 525 $ 1,687 $ 1,576