XML 58 R47.htm IDEA: XBRL DOCUMENT v3.20.4
STOCK COMPENSATION (Details 1)
12 Months Ended
Sep. 30, 2020
Sep. 30, 2019
STOCK COMPENSATION    
Expected stock price volatility, min 87.36% 87.67%
Expected stock price volatility, max 90.26% 92.84%
Risk-free interest rate, min 0.62% 1.62%
Risk-free interest rate, max 1.87% 2.82%
Expected life of options, min 9 years 8 months 4 days 9 years 8 months 1 day
Expected life of options, max 9 years 8 months 8 days 9 years 8 months 4 days
Expected dividend yield 0.00% 0.00%