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Goodwill and Other Intangible Assets - Schedule of Net Carrying Amount (Detail) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jul. 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 | 19,719 | 19,688
Accumulated Amortization | (11,718) | (10,792)
Impairment | (760) | (760)
Net Carrying Amount | $ 7,241 | 8,136
Proprietary rights |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Life | 6 years 7 months 6 days |
Gross Carrying Amount | $ 9,265 | 9,247
Accumulated Amortization | (5,286) | (4,950)
Net Carrying Amount | $ 3,979 | 4,297
Customer relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Life | 1 year 3 months 18 days |
Gross Carrying Amount | $ 5,024 | 5,024
Accumulated Amortization | (4,173) | (3,831)
Net Carrying Amount | $ 851 | 1,193
Patents |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Life | 4 years |
Gross Carrying Amount | $ 2,440 | 2,440
Accumulated Amortization | (1,401) | (1,277)
Net Carrying Amount | $ 1,039 | 1,163
Trade name |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Life | 5 years 9 months 18 days |
Gross Carrying Amount | $ 894 | 894
Accumulated Amortization | (69) | (63)
Impairment | (760) | (760)
Net Carrying Amount | $ 65 | 71
Developed technology |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Life | 5 years 4 months 24 days |
Gross Carrying Amount | $ 1,430 | 1,430
Accumulated Amortization | (655) | (584)
Net Carrying Amount | $ 775 | 846
Other |  |
Finite-Lived Intangible Assets [Line Items] |  |
Weighted Average Life | 3 years 10 months 24 days |
Gross Carrying Amount | $ 666 | 653
Accumulated Amortization | (134) | (87)
Net Carrying Amount | $ 532 | $ 566

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