Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Details)

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Stockholders' Equity (Details) - $ / shares
 12 Months Ended
Aug. 31, 2019
Aug. 31, 2018
Number of shares    
Number of shares outstanding, beginning balance 3,778,796 2,595,413
Issued 2,975,478 1,220,883
(Exercised) (267,500) (37,500)
(Cancelled)
(Expired) (2,190,413)
Number of shares outstanding, ending balance 4,296,361 3,778,796
Weighted remaining life (years)    
Weighted remaining life (years), beginning 2 years 1 month 16 days 1 year 6 months
Weighted remaining life (years), issued 5 years 5 years 3 months 19 days
Weighted remaining life (years), exercised 5 months 12 days 1 year 2 months 12 days
Weighted remaining life (years), cancelled
Weighted remaining life (years), expired
Weighted remaining life (years), ending 4 years 5 months 1 day 2 years 1 month 16 days
Weighted average exercise prices    
Weighted average exercise prices, beginning $ 2.84 $ 2.99
Weighted average exercise prices, issued 1.75 2.49
Weighted average exercise prices, exercised 2.47 2.00
Weighted average exercise prices, cancelled
Weighted average exercise prices, expired 2.87
Weighted average exercise prices, ending $ 1.87 $ 2.84