Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Summary of warrants outstanding (Details)

v3.20.2
Stockholders' Equity - Summary of warrants outstanding (Details) - $ / shares
 9 Months Ended 12 Months Ended
May 31, 2020
Aug. 31, 2019
Number of shares    
Number of shares outstanding, beginning balance 107,409  
Issued 1,840,773  
(Cancelled) (45,698)  
(Exercised) (6,275)  
Number of shares outstanding, ending balance 1,896,209  
Number of shares Exercisable 1,472,540  
Weighted remaining life (years)    
Weighted remaining life (years), beginning   4 years 3 months 18 days
Weighted remaining life (years), issued 5 years 1 month 6 days  
Weighted remaining life (years), cancelled 4 years 3 months 18 days  
Weighted remaining life (years), exercised 3 years 7 months 6 days  
Weighted remaining life (years), ending 5 years  
Weighted Remaining Life (Years) Exercisable 4 years 10 months 24 days  
Weighted average exercise prices    
Weighted average exercise prices, beginning $ 83.21  
Weighted average exercise prices, issued 7.03  
Weighted average exercise prices, cancelled 78.13  
Weighted average exercise prices, exercised 5.29  
Weighted average exercise prices, ending 8.42  
Weighted Average Exercise Prices Exercisable $ 7.91