Goodwill and Other Intangible Assets - Schedule of Net Carrying Amount (Detail) - USD ($) $ in Thousands	9 Months Ended
	Oct. 31, 2020	Jan. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, Gross Carrying Amount	$ 7,060	$ 7,060
Goodwill, Impairment	(7,060)	(4,529)
Goodwill, Net Carrying Amount	0	2,531
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	17,884	19,688
Accumulated Amortization	(10,293)	(10,792)
Impairment	(760)	(760)
Net Carrying Amount	$ 6,831	8,136
Proprietary rights
Finite-Lived Intangible Assets [Line Items]
Weighted Average Life	7 years 9 months 18 days
Gross Carrying Amount	$ 7,430	9,247
Accumulated Amortization	(3,547)	(4,950)
Net Carrying Amount	$ 3,883	4,297
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted Average Life	1 year 1 month 6 days
Gross Carrying Amount	$ 5,024	5,024
Accumulated Amortization	(4,344)	(3,831)
Net Carrying Amount	$ 680	1,193
Patents
Finite-Lived Intangible Assets [Line Items]
Weighted Average Life	3 years 9 months 18 days
Gross Carrying Amount	$ 2,440	2,440
Accumulated Amortization	(1,463)	(1,277)
Net Carrying Amount	$ 977	1,163
Trade name
Finite-Lived Intangible Assets [Line Items]
Weighted Average Life	5 years 7 months 6 days
Gross Carrying Amount	$ 894	894
Accumulated Amortization	(72)	(63)
Impairment	(760)	(760)
Net Carrying Amount	$ 62	71
Developed technology
Finite-Lived Intangible Assets [Line Items]
Weighted Average Life	5 years 2 months 12 days
Gross Carrying Amount	$ 1,430	1,430
Accumulated Amortization	(691)	(584)
Net Carrying Amount	$ 739	846
Other
Finite-Lived Intangible Assets [Line Items]
Weighted Average Life	3 years 7 months 6 days
Gross Carrying Amount	$ 666	653
Accumulated Amortization	(176)	(87)
Net Carrying Amount	$ 490	$ 566