Warrants (Details 1) - Warrant [Member] - $ / shares	3 Months Ended	12 Months Ended
	Oct. 31, 2018	Jul. 31, 2018
Class of Warrant or Right [Line Items]
Options/Warrants, Outstanding at July 31, 2018	2,370,000	510,000
Options/Warrants, Granted	215,000	2,010,000
Options/Warrants, Exercised		(150,000)
Warrants, Forfeited and cancelled	(240,000)
Options/Warrants, Outstanding at October 31, 2018	2,345,000	2,370,000
Options/Warrants, Exercisable at October 31, 2018	2,045,000
Options/Warrants, Weighted-average exercise price, Outstanding at July 31, 2018	$ 0.28	$ 0.29
Options/Warrants, Weighted-average exercise price, Granted	0.13	0.26
Options/Warrants, Weighted-average exercise price, Exercised		0.10
Options/Warrants, Weighted-average exercise price, Forfeited and cancelled	0.15
Options/Warrants, Weighted-average exercise price, Outstanding at October 31, 2018	0.34	$ 0.28
Options/Warrants, Weighted-average exercise price, Exercisable at October 31, 2018	$ 0.24
Options/Warrants, Weighted-average remaining contractual term (years), Outstanding		2 years 10 months 14 days
Options/Warrants, Weighted-average remaining contractual term (years), Exercisable at October 31, 2018	2 years 5 months 23 days	2 years 10 months 25 days
Options/Warrants, Granted, Weighted-average remaining contractual term (years)	3 years	3 years 4 months 2 days
Options/Warrants, Forfeited and cancelled, Weighted-average remaining contractual term (years)	3 years 5 months 5 days	3 years
Options/Warrants, Weighted-average remaining contractual term (years), Outstanding, Ending	2 years 7 months 6 days	2 years 10 months 25 days