Stockholders' Equity (Summary Of Warrant Activity) (Details) - USD ($)	12 Months Ended
	Jul. 31, 2015	Jul. 31, 2014
Comprehensive Loss [Abstract]
Outstanding, Beginning Balance	$ 849,012	$ 1,434,121
Issued	4,652,312	118,000
Exercised	(413,332)	(640,711)
Expired	(52,836)	(62,398)
Outstanding, Ending Balance	$ 5,035,156	$ 849,012