Royalty Obligation - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	May 02, 2020	May 04, 2019	Jan. 31, 2020	Jan. 31, 2018
Guaranteed Minimum Royalty Payment	$ 4,000
Royalty Obligation, Current	2,000		$ 2,000
Royalty Obligation Non Current	7,550		8,012
Accrued Royalties, Current, Excess Royalty Payment Due	$ 586		$ 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
Royalty Obligation Non Current	7,500
Excess Royalty Payments	$ 0	$ 600