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Royalty Obligation - Additional Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Oct. 31, 2020
Nov. 02, 2019
Oct. 31, 2020
Nov. 02, 2019
Jan. 31, 2020
Jan. 31, 2018
Guaranteed Minimum Royalty Payment     $ 5,000      
Royalty Obligation, Current $ 2,000   2,000   $ 2,000  
Royalty Obligation Non Current 6,624   6,624   8,012  
Accrued Royalties, Current, Excess Royalty Payment Due 147   $ 147   $ 773  
Honeywell Asset Purchase and License Agreement [Member]            
Payment Term Period     10 years      
Minimum Royalty Payment Obligations           $ 15,000
Fair Value Assumption Percentage Of Present Value Factor     2.80%      
Royalty Obligation, Current 2,000   $ 2,000      
Royalty Obligation Non Current 6,600   6,600      
Excess Royalty Payments $ 0 $ 100 $ 0 $ 800