Quarterly report pursuant to Section 13 or 15(d)

Summary of significant accounting policies - Weighted average dilutive common shares (Details)

v3.20.4
Summary of significant accounting policies - Weighted average dilutive common shares (Details) - shares
 3 Months Ended
Nov. 30, 2020
Nov. 30, 2019
Total potentially dilutive stock 5,913,398 1,042,814
Options [Member]    
Total potentially dilutive stock 1,517,189 45,463
Senior Secured Convertible Notes [Member]    
Total potentially dilutive stock   889,935
Warrant [Member]    
Total potentially dilutive stock 4,396,209 107,416