Stock-Based Compensation (Tables)

9 Months Ended

Apr. 30, 2016

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

Common stock options granted, forfeited or expired and exercised

	Options		Weighted Average Exercise Price per Share		Aggregate Intrinsic Value
Outstanding, August 1, 2015		30,233,074	$	0.0468
Add: Granted (note 7)		18,345,768		0.001
Less: Expired		3,000,000		0.2820
Less: Exercised		25,939,365		0.0010
Outstanding, April 30, 2016		19,639,477	$	0.0287	$	93,947
Exercisable April 30, 2016		19,639,477	$	0.0287	$	93,947