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Income Taxes (Details Textual) - USD ($) | 12 Months Ended
--- | ---
Sep. 30, 2019 | Sep. 30, 2018
Income tax (Textual) |  |
Valuation allowance increased | $ 3,017,000 | $ 1,764,000
Net operating loss carryforward | $ 49,291,000 |
Begins expiring | Expiring in 2034. |
federal research and development credits | $ 852,000 |
federal research and development credits [member] |  |
Income tax (Textual) |  |
Begins expiring | The tax credit carryforwards will begin to expire in 2036. |
Minimum [Member] |  |
Income tax (Textual) |  |
U.S. corporate tax rate | 35.00% |
U.S. federal income tax rate | 35.00% |
Maximum [Member] |  |
Income tax (Textual) |  |
U.S. corporate tax rate |  | 21.00%
U.S. federal income tax rate |  | 21.00%

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