Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Oct. 31, 2018	Jul. 31, 2018
Statement of Financial Position [Abstract]
Preferred stock par value	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Common stock par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	400,000,000	400,000,000
Common stock, shares issued	234,008,162	233,891,841
Common stock, shares outstanding	234,008,162	233,891,841