CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $)	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income [Member]	Total
Beginning Balance at Jul. 31, 2013	$ 86,036	$ 200,046,081	$ (142,687,039)		$ 57,445,078
Beginning Balance (Shares) at Jul. 31, 2013	86,032,285
Common stock issued for equity financing	3,381	5,905,670			5,909,051
Common stock issued for equity financing (Shares)	3,380,954
Common stock issued for exercise of stock options and warrants	68	22,433			22,501
Common stock issued for exercise of stock options and warrants (Shares)	67,803
Common stock issued for consulting services	281	556,637			556,918
Common stock issued for consulting services (Shares)	281,299
Common stock issued for bonuses	30	54,970			55,000
Common stock issued for bonuses (Shares)	30,386
Options issued for consulting services		73,718			73,718
Options issued for employees benefits		68,573			68,573
Warrants issued for equity financing		580,525			580,525
Net loss for the period			(13,058,828)		(13,058,828)
Other comprehensive loss				(6,327)	(6,327)
Ending Balance at Jan. 31, 2014	$ 89,796	$ 207,308,607	$ (155,745,867)	$ (6,327)	$ 51,646,209
Ending Balance (Shares) at Jan. 31, 2014	89,792,727