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Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions (Details) - USD ($)
9 Months Ended
May 31, 2019
May 31, 2018
Expected volatility 0.00% 204.00%
Risk-free interest rate 0.00% 1.93%
Expected life 0 years 5 years
Dividend yield 0.00% 0.00%
Estimated fair value per option $ 0 $ 0.05