Goodwill and Intangible Assets - Schedule of Change in Carrying Amount of Goodwill (Detail) $ in Thousands |
6 Months Ended |
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Jul. 31, 2019
USD ($)
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| Goodwill And Intangible Assets [Line Items] | |
| Goodwill, beginning balance | $ 8,753 |
| Cumulative translation adjustment | (191) |
| Goodwill, ending balance | 9,783 |
| Xstream A/S [Member] | |
| Goodwill And Intangible Assets [Line Items] | |
| Goodwill arising from the Xstream acquisition | $ 1,221 |
| X | ||||||||||
- Definition Goodwill And Intangible Assets [Line Items] No definition available.
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| X | ||||||||||
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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