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Stock-Based Compensation (Tables)

3 Months Ended

Apr. 30, 2019

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Total Stock-Based Compensation Recognized for Stock-Based Awards in Condensed Consolidated Statements of Operations

Total stock-based compensation recognized for stock-based awards in the condensed consolidated statements of operations was as follows (in thousands):

		Three Months Ended
		April 30, 2019				April 30, 2018
Cost of revenue		$	285			$	192
Sales and marketing			446				326
Research and development			1,096				863
General and administrative			1,155				933
Total stock-based compensation expense		$	2,982			$	2,314

Summary of Assumptions Used to Estimate Fair Value of Employee Stock Options Grants and Employee Stock Purchase Plan Using Black-Scholes Option Pricing Model

The fair value of employee stock options and ESPP purchases was estimated using the Black–Scholes model with the following assumptions:

		Three Months Ended
		April 30, 2019				April 30, 2018
Stock Options:
Expected volatility		44%				43%
Expected term (in years)		6.1				6.1
Risk-free interest rate		2.5%				2.7%
Dividend yield		NA				NA
		Three Months Ended
		April 30, 2019				April 30, 2018
ESPP:
Expected volatility		40%-49%				47%-56%
Expected term (in years)		0.5-2.0				0.5-2.0
Risk-free interest rate		2.4%-2.5%				2.0%-2.3%
Dividend yield		NA				NA

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- References

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- Definition

Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901

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- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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