CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY STATEMENTS - USD ($)	Common Stock [Member]	Additional Paid-In Capital [Member]	Share Issuance Obligation [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]	Total
Beginning Balance at Jul. 31, 2012	$ 84,975	$ 196,486,881	$ 194,700	$ (120,823,948)	$ (22,127)	$ 75,920,481
Beginning Balance (Shares) at Jul. 31, 2012	84,975,155
Common stock Issued for debt financing as bonus shares	$ 408	1,064,992				1,065,400
Common stock Issued for debt financing as bonus shares (Shares)	407,239
Common stock issued for exercise of stock options and warrants	$ 461	46,003				46,464
Common stock issued for exercise of stock options and warrants (Shares)	459,891
Common stock issued for Everest Settlement Agreement	$ 56	194,644	$ (194,700)
Common stock issued for Everest Settlement Agreement (Shares)	55,000
Common stock issued for consulting services	$ 60	119,940				120,000
Common stock issued for consulting services (Shares)	60,000
Common stock issued for Yuty Settlement Agreement	$ 76	190,424				190,500
Common stock issued for Yuty Settlement Agreement (Shares)	75,000
Stock options issued to consultants		297,400				297,400
Stock options issued to employees		407,887				407,887
Warrants issued for debt financing		1,237,910				1,237,910
Net loss for the year				(21,863,091)		(21,863,091)
Other comprehensive loss					22,127	22,127
Ending Balance at Jul. 31, 2013	$ 86,036	200,046,081		(142,687,039)		57,445,078
Ending Balance (Shares) at Jul. 31, 2013	86,032,285
Common stock Issued for equity financing, net of issuance costs	$ 3,381	5,944,411				5,947,792
Common stock Issued for equity financing, net of issuance costs (Shares)	3,380,954
Common stock Issued for debt financing as bonus shares	$ 388	675,670				676,058
Common stock Issued for debt financing as bonus shares (Shares)	386,834
Common stock issued for exercise of stock options	$ 471	26,930				27,401
Common stock issued for exercise of stock options (Shares)	470,492
Common stock issued for advance royalty payment	$ 30	34,820				34,850
Common stock issued for advance royalty payment (Shares)	30,304
Common stock issued for consulting services	$ 636	1,101,296				1,101,932
Common stock issued for consulting services (Shares)	635,303
Common stock issued for bonuses	$ 30	54,970				55,000
Common stock issued for bonuses (Shares)	30,386
Stock options issued to consultants		74,992				74,992
Stock options issued to employees		82,321				82,321
Warrants issued for equity financing		584,331				584,331
Amendment of debt financing related instruments		(617,510)				(617,510)
Net loss for the year				(25,975,107)		(25,975,107)
Other comprehensive loss					(13,539)	(13,539)
Ending Balance at Jul. 31, 2014	$ 90,972	208,008,312		(168,662,146)	(13,539)	39,423,599
Ending Balance (Shares) at Jul. 31, 2014	90,966,558
Common stock Issued for equity financing, net of issuance costs	$ 5,280	7,653,859				7,659,139
Common stock Issued for equity financing, net of issuance costs (Shares)	5,280,045
Common stock issued for exercise of stock options	$ 305	24,245				24,550
Common stock issued for exercise of stock options (Shares)	304,657
Common stock issued for consulting services	$ 1,111	1,849,963				1,851,074
Common stock issued for consulting services (Shares)	1,108,390
Common stock issued for bonuses	$ 173	235,317				235,490
Common stock issued for bonuses (Shares)	174,437
Stock options issued to consultants		588,207				588,207
Stock options issued to management		1,617,937				1,617,937
Stock options issued to employees		1,325,040				1,325,040
Warrants issued for equity financing		1,418,116				1,418,116
Warrants Issued for equity financing as share issuance costs		206,533				206,533
Net loss for the year				(23,361,928)		(23,361,928)
Other comprehensive loss					(1,092)	(1,092)
Ending Balance at Jul. 31, 2015	$ 97,841	$ 222,927,529		$ (192,024,074)	$ (14,631)	$ 30,986,665
Ending Balance (Shares) at Jul. 31, 2015	97,834,087