CAPITAL STOCK (Details 7) - Employee Stock Option [Member] - $ / shares	12 Months Ended
	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2016
Number of Unvest Stock Options, Begining Balance	765,750	2,323,000	3,820,000
Number of Unvest Stock Options, Granted	4,083,000	672,500	3,033,000
Number of Unvest Stock Options, Vested	(1,303,000)	(2,224,750)	(4,350,000)
Number of Unvest Stock Options, Forfeited	(66,250)	(5,000)	(180,000)
Number of Unvest Stock Options, Ending balance	3,479,500	765,750	2,323,000
Weighted Average Grant-Date Fair Value, Begining Balance	$ 0.58	$ 0.51	$ 0.51
Weighted Average Grant-Date Fair Value, Granted	0.68	0.77	0.51
Weighted Average Grant-Date Fair Value, Vested	0.65	0.56	0.51
Weighted Average Grant-Date Fair Value, Forfeited	0.62	0.49	0.50
Weighted Average Grant-Date Fair Value, Ending balance	$ 0.68	$ 0.58	$ 0.51