| Schedule of Derivative Liabilities at Fair Value [Table Text Block] |
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Fair Value Measurements Using Significant Unobservable Inputs – Nine Months Ended June 30, 2023
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(Level 3)
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Series G
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Series H
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| |
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Beginning balance at September 30, 2022
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|
$ |
748,275 |
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$ |
459,200 |
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Exchange of warrants into common stock
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(13,948 |
)
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(35,330 |
)
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| Extinguishment of derivative liabilities |
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(734,327 |
) |
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(423,870 |
) |
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Ending balance at June 30, 2023
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$ |
— |
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$ |
— |
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Fair Value Measurements Using Significant Unobservable Inputs - Nine Months Ended June 30, 2022
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(Level 3)
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Series F
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Series G
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Series H
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Beginning balance at September 30, 2021
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$ |
1,000,000 |
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|
$ |
748,275 |
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|
$ |
459,200 |
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|
Issuances
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|
— |
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— |
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— |
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Adjustments to estimated fair value
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— |
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— |
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— |
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| Expiration of derivative liability |
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(1,000,000 |
) |
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— |
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— |
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Ending balance at June 30, 2022
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|
$ |
— |
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|
$ |
748,275 |
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|
$ |
459,200 |
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| |
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Series F
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Series G
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Series H
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Beginning balance at September 30, 2021
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|
$ |
1,000,000 |
|
|
$ |
748,275 |
|
|
$ |
459,200 |
|
|
Issuances
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|
— |
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— |
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— |
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Adjustments for the expiration of warrant
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(1,000,000 |
)
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— |
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— |
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Ending balance at September 30, 2022
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|
$ |
— |
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|
$ |
748,275 |
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|
$ |
459,200 |
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| |
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Series F
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|
Series G
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|
Series H
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|
Beginning balance at September 30, 2020
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|
$ |
1,000,000 |
|
|
$ |
748,275 |
|
|
$ |
568,144 |
|
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Issuances
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|
— |
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|
— |
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— |
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Adjustments to estimated fair value
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|
— |
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— |
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(108,944 |
)
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|
Ending balance at September 30, 2021
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|
$ |
1,000,000 |
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|
$ |
748,275 |
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|
$ |
459,200 |
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| Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] |
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Series G
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Series H
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Closing price per share of Common Stock
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$ |
4.10 |
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$ |
4.10 |
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Exercise price per share
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$ |
140.00 |
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$ |
80.00 |
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|
Expected volatility
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|
179.41 |
%
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|
141.03 |
%
|
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Risk-free interest rate
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|
4.91 |
%
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|
4.75 |
%
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Dividend yield
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|
— |
|
|
|
— |
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|
Remaining expected term of underlying securities (years)
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|
0.24 |
|
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|
1.31 |
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| |
|
Series G
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|
Series H
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|
Closing price per share of Common Stock
|
|
$ |
3.84 |
|
|
$ |
3.84 |
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Exercise price per share
|
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$ |
140.00 |
|
|
$ |
80.00 |
|
|
Expected volatility
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|
132.97 |
%
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|
122.50 |
%
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|
Risk-free interest rate
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|
4.05 |
%
|
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|
4.14 |
%
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Dividend yield
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|
— |
|
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— |
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Remaining expected term of underlying securities (years)
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|
0.69 |
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|
1.57 |
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| |
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Series G
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Series H
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| Closing price per share of Common Stock |
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|
|
|
|
|
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| |
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|
Exercise price per share
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|
$ |
140.00 |
|
|
$ |
80.00 |
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| |
|
|
|
|
|
|
|
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|
Expected volatility
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|
132.97 |
%
|
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|
122.50 |
%
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| |
|
|
|
|
|
|
|
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|
Risk-free interest rate
|
|
|
4.05 |
%
|
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|
4.14 |
%
|
| |
|
|
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|
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Dividend yield
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|
|
— |
|
|
|
— |
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| |
|
|
|
|
|
|
|
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Remaining expected term of underlying securities (years)
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|
|
0.69 |
|
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|
1.57 |
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| |
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Series F
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Series G
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Series H
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|
Closing price per share of Common Stock
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|
$ |
0.12 |
|
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$ |
0.12 |
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$ |
0.12 |
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|
Exercise price per share
|
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$ |
150.00 |
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$ |
140.00 |
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$ |
80.00 |
|
|
Expected volatility
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|
90.28 |
%
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|
87.40 |
%
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|
86.59 |
%
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|
Risk-free interest rate
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|
0.04 |
%
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|
0.19 |
%
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|
0.41 |
%
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Dividend yield
|
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|
— |
|
|
|
— |
|
|
|
— |
|
|
Remaining expected term of underlying securities (years)
|
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|
0.34 |
|
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|
1.70 |
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|
2.58 |
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|