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Stock-Based Compensation (Tables)

12 Months Ended

Jul. 31, 2017

Stock-Based Compensation [Abstract]

Summary of weighted average assumptions in BSM pricing model

Year ended July 31,		2017				2016
Expected term			6.1 years				6.0 years
Volatility			81	%			113	%
Risk free interest rate			1.7	%			1.3	%
Dividends			—				—
Grant date fair value		$	2.41			$	3.71

Summary of stock option activity

		Number of Options (in thousands)				Weighted-Average Exercise Price				Weighted-Average Remaining Contractual Term (in years)				Aggregate Intrinsic Value (in thousands)
Outstanding at July 31, 2016			1,440			$	0.93
Granted			279				3.80
Exercised			(281	)			0.39
Cancelled / forfeited			—				—
Outstanding at July 31, 2017			1,438			$	1.59				8.22			$	1,212
Exercisable at July 31, 2017			1,149			$	1.03				6.37			$	1,212

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- References

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- Definition

Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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