CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - $ / shares	Apr. 30, 2021	Jul. 31, 2020
Preferred stock, par value	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	20,000,000	20,000,000
Preferred stock, issued	1,434	1,434
Preferred stock, outstanding	1,434	1,434
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	200,000,000	200,000,000
Common stock, issued	126,270,171	96,691,761
Common stock, outstanding	126,270,171	96,691,761
Series B Preferred Stock
Preferred stock, par value	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	20,000,000	20,000,000
Preferred stock, issued	1,347	1,347
Preferred stock, outstanding	1,347	1,347