Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheets (Parenthetical)

v3.21.2
Consolidated Balance Sheets (Parenthetical) - $ / shares
Jul. 31, 2021
Jul. 31, 2020
Statement of Financial Position [Abstract]    
Common stock, shares authorized 100,000,000 100,000,000
Common stock, par value $ 0.0001 $ 0.0001
Common stock, shares issued 39,152,610 23,054,474
Common stock, shares outstanding 39,152,610 23,054,474
Warrants issued 1,706,190 3,114,288
Warrants outstanding 1,706,190 3,114,288