Quarterly report pursuant to Section 13 or 15(d)

Stock Options (Details 1)

v3.22.2
Stock Options (Details 1)
9 Months Ended
May 31, 2022
$ / shares
Stock Options  
Expected life 5 years
Estimated fair value per option Minimum $ 2.50
Estimated fair value per option Maximum $ 5.10
Expected volatility Minimum 98.00%
Expected volatility Maximum 119.00%
Risk-free interest rate Minimum 0.85%
Risk-free interest rate Maximum 1.78%
Dividend yield 0.00%