Quarterly report pursuant to Section 13 or 15(d)

Fair Value - Fair Value Measurements (Details)

v3.20.4
Fair Value - Fair Value Measurements (Details)
3 Months Ended
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Sep. 30, 2020
USD ($)
Liabilities      
Warrant liabilities $ 320,039   $ 950,151
Change in fair value of the warrant liabilities      
Fair value as of September 30 950,151 $ 496,343  
Change in fair value (630,112) 694,134  
Fair value at the end $ 320,039 $ 1,190,477  
Remaining contractual term (years) | Minimum      
Liabilities      
Warrants and Rights Outstanding, Term 1 year 2 years  
Remaining contractual term (years) | Maximum      
Liabilities      
Warrants and Rights Outstanding, Term 1 year 3 months 18 days 2 years 3 months 18 days  
Common stock price volatility      
Liabilities      
Warrants and Rights Outstanding, Measurement Input 73.9    
Common stock price volatility | Minimum      
Liabilities      
Warrants and Rights Outstanding, Measurement Input   84.9  
Common stock price volatility | Maximum      
Liabilities      
Warrants and Rights Outstanding, Measurement Input   86.2  
Risk-free interest rate      
Liabilities      
Warrants and Rights Outstanding, Measurement Input 0.10    
Risk-free interest rate | Minimum      
Liabilities      
Warrants and Rights Outstanding, Measurement Input   1.58  
Risk-free interest rate | Maximum      
Liabilities      
Warrants and Rights Outstanding, Measurement Input   1.63  
Fair Value Measurements Level 3 [Member]      
Liabilities      
Warrant liabilities $ 320,039   $ 950,151