General form of registration statement for all companies including face-amount certificate companies

Note 7 - Derivative Liabilities - Derivative Liabilities (Details)

v3.22.2.2
Note 7 - Derivative Liabilities - Derivative Liabilities (Details)
 12 Months Ended
Sep. 30, 2021
$ / shares
Sep. 30, 2020
$ / shares
Jun. 30, 2022
$ / shares
Common Stock, Par Value (in dollars per share) $ 0.001 $ 0.001 $ 0.001
Series F Warrants Relating To 2017 Securities Purchase Agreement [Member] | Derivative Financial Instruments, Liabilities [Member]      
Common Stock, Par Value (in dollars per share) $ 0.12 $ 0.17  
Series F Warrants Relating To 2017 Securities Purchase Agreement [Member] | Derivative Financial Instruments, Liabilities [Member] | Measurement Input, Exercise Price [Member]      
Measurement Input 0.75 0.75  
Series F Warrants Relating To 2017 Securities Purchase Agreement [Member] | Derivative Financial Instruments, Liabilities [Member] | Measurement Input, Price Volatility [Member]      
Measurement Input 90.28 84.17  
Series F Warrants Relating To 2017 Securities Purchase Agreement [Member] | Derivative Financial Instruments, Liabilities [Member] | Measurement Input, Risk Free Interest Rate [Member]      
Measurement Input 0.04 0.13  
Series F Warrants Relating To 2017 Securities Purchase Agreement [Member] | Derivative Financial Instruments, Liabilities [Member] | Measurement Input, Expected Term [Member]      
Remaining expected term of underlying securities (years) (Year) 4 months 2 days 1 year 4 months 6 days  
Series G Warrants Relating To 2018 Securities Purchase Agreement [Member] | Derivative Financial Instruments, Liabilities [Member]      
Common Stock, Par Value (in dollars per share) $ 0.12 $ 0.17  
Series G Warrants Relating To 2018 Securities Purchase Agreement [Member] | Derivative Financial Instruments, Liabilities [Member] | Measurement Input, Exercise Price [Member]      
Measurement Input 0.7 0.7  
Series G Warrants Relating To 2018 Securities Purchase Agreement [Member] | Derivative Financial Instruments, Liabilities [Member] | Measurement Input, Price Volatility [Member]      
Measurement Input 87.4 83.31  
Series G Warrants Relating To 2018 Securities Purchase Agreement [Member] | Derivative Financial Instruments, Liabilities [Member] | Measurement Input, Risk Free Interest Rate [Member]      
Measurement Input 0.19 0.15  
Series G Warrants Relating To 2018 Securities Purchase Agreement [Member] | Derivative Financial Instruments, Liabilities [Member] | Measurement Input, Expected Term [Member]      
Remaining expected term of underlying securities (years) (Year) 1 year 8 months 12 days 2 years 8 months 15 days  
Series H Warrants Relating To 2019 Securities Purchase Agreement [Member] | Derivative Financial Instruments, Liabilities [Member]      
Common Stock, Par Value (in dollars per share) $ 0.12 $ 0.17  
Series H Warrants Relating To 2019 Securities Purchase Agreement [Member] | Derivative Financial Instruments, Liabilities [Member] | Measurement Input, Exercise Price [Member]      
Measurement Input 0.4 0.4  
Series H Warrants Relating To 2019 Securities Purchase Agreement [Member] | Derivative Financial Instruments, Liabilities [Member] | Measurement Input, Price Volatility [Member]      
Measurement Input 86.59 82.24  
Series H Warrants Relating To 2019 Securities Purchase Agreement [Member] | Derivative Financial Instruments, Liabilities [Member] | Measurement Input, Risk Free Interest Rate [Member]      
Measurement Input 0.41 0.22  
Series H Warrants Relating To 2019 Securities Purchase Agreement [Member] | Derivative Financial Instruments, Liabilities [Member] | Measurement Input, Expected Term [Member]      
Remaining expected term of underlying securities (years) (Year) 2 years 6 months 29 days 3 years 7 months 6 days