CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Oct. 31, 2019	Jul. 31, 2019	Jan. 24, 2017
Stockholders' equity (deficit)
Common stock, shares par value	$ 0.001	$ 0.001
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	14,817,839	14,434,098
Common stock, shares outstanding	14,817,839	14,434,098
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	216,000	217,000
Preferred stock, shares outstanding	216,000	217,000
Preferred stock, par value	$ 0.001	$ 0.001
Series B Preferred stock [Member]
Stockholders' equity (deficit)
Preferred stock, shares authorized	16,500	16,500
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Preferred stock, par value	$ 0.001	$ 0.001
Series A Preferred Stock [Member]
Stockholders' equity (deficit)
Preferred stock, shares authorized	3,000,000	3,000,000	3,000,000
Preferred stock, shares issued	216,000	217,000
Preferred stock, shares outstanding	216,000	217,000
Preferred stock, par value	$ 0.001	$ 0.001	$ 0.001