INCOME TAXES (Details 1) - USD ($)	12 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2014
Loss before income taxes	$ (17,362,111)	$ (23,397,341)	$ (26,044,816)
Corporate tax rate	35.35%	35.32%	35.22%
Expected tax recovery	$ (6,137,506)	$ (8,263,941)	$ (9,172,984)
Foreign tax rate differences	230,148	223,980	286,071
Permanent differences	806,736	1,473,225	585,482
Prior year true-up	(647,307)	50,025	(79,672)
State tax rate true-up	(105,843)	(205,285)	(199,795)
Foreign exchange rate differences	129,015	144,242	97,565
Other	59,705	62,398	(10,431)
Change in valuation allowance	5,627,606	6,474,775	8,419,286
Tax adjustment from operations	(37,446)	(40,581)	(74,478)
Unrealized loss, other comprehensive loss	5,207	5,168	4,769
Deferred income tax benefit	$ (32,239)	$ (35,413)	$ (69,709)