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Stock-Based Compensation (Tables)
6 Months Ended
Mar. 31, 2022
Share-Based Payment Arrangement [Abstract]  
Schedule of stock-based compensation expense
   Three Months Ended   Six Months Ended 
   March 31,   March 31, 
   2022   2021   2022   2021 
General and administrative  $194,874   $253,586   $357,875   $435,379 
Research and development   37,842    72,773    77,913    136,809 
Total stock-based compensation expense  $232,716   $326,359   $435,788   $572,188 

 

Schedule of weighted-average assumptions used in the Black-Scholes option-pricing model
   Three Months Ended   Six Months Ended 
   March 31,   March 31, 
   2022   2021   2022   2021 
Expected stock price volatility  53.5%  56.0%  53.5%  55.9%
Expected life of options (years)   6.1    6.1    6.1    6.0 
Expected dividend yield   0%   0%   0%   0%
Risk free interest rate   1.6%   0.6%   1.6%   0.6%