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Intangible Assets - Summary of Carrying Values of Intangible Assets Other than Goodwill (Details) - USD ($) $ in Thousands	Apr. 30, 2019	Jan. 31, 2019
Finite Lived Intangible Assets [Line Items]
Gross Value, Intangible Assets	$ 4,783	$ 4,783
Accumulated Amortization, Intangible Assets	(2,355)	(2,148)
Carrying Value, Intangible Assets	2,428	2,635
Developed technology
Finite Lived Intangible Assets [Line Items]
Gross Value, Intangible Assets	2,716	2,716
Accumulated Amortization, Intangible Assets	(1,257)	(1,121)
Carrying Value, Intangible Assets	1,459	1,595
Customer relationships
Finite Lived Intangible Assets [Line Items]
Gross Value, Intangible Assets	902	902
Accumulated Amortization, Intangible Assets	(203)	(157)
Carrying Value, Intangible Assets	699	745
Trade name
Finite Lived Intangible Assets [Line Items]
Gross Value, Intangible Assets	451	451
Accumulated Amortization, Intangible Assets	(189)	(166)
Carrying Value, Intangible Assets	262	285
Patents and licenses
Finite Lived Intangible Assets [Line Items]
Gross Value, Intangible Assets	714	714
Accumulated Amortization, Intangible Assets	(706)	(704)
Carrying Value, Intangible Assets	$ 8	$ 10

X

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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-Publisher FASB
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-Topic 350
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-Section 50
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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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