XML 66 R55.htm IDEA: XBRL DOCUMENT v3.21.1
Royalty Obligation - Additional Information (Detail) - USD ($)
 3 Months Ended
May 01, 2021
Jan. 31, 2021
Jan. 31, 2018
Guaranteed Minimum Royalty Payment $ 6,000,000.0    
Royalty Obligation, Current 2,000,000 $ 2,000,000  
Royalty Obligation Non Current 5,711,000 6,161,000  
Accrued Royalties, Current, Excess Royalty Payment Due $ 200,000 $ 177,000  
Honeywell Asset Purchase and License Agreement [Member]      
Payment Term Period 10 years    
Minimum Royalty Payment Obligations     $ 15,000,000.0
Fair Value Assumption Percentage Of Present Value Factor 2.80%    
Royalty Obligation, Current $ 2,000,000.0    
Royalty Obligation Non Current 5,700,000    
Excess Royalty Payments $ 0