Share-Based Compensation (Tables)

6 Months Ended

Jan. 31, 2019

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Stock Option Activity

A summary of our stock option activity is as follows:

	Shares			Weighted-Average Exercise Price		Aggregate Intrinsic Value
Outstanding at July 31, 2018		7,626,093		$	1.09	$	—
Granted		100,000		$	0.65		—
Exercised		—		$	—		—
Cancelled		(253,125	)	$	1.28		—
Outstanding at January 31, 2019		7,472,968		$	1.08	$	—

Schedule of Fair Value Assumptions

The fair value of stock options was estimated at the grant date using the following weighted average assumptions:

	Three Months Ended January 31, 2019			Three Months Ended January 31, 2018			Six Months Ended January 31, 2019			Six Months Ended January 31, 2018
Volatility		—	%		84.89	%		62.52	%		85.94	%
Risk-free interest rate		—	%		2.03	%		2.80	%		1.91	%
Dividend yield		—	%		0.0	%		0.0	%		0.0	%
Expected life		—			5.35 years			3.02 years			5.40 years