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Income Taxes (Details 2) - USD ($) | 12 Months Ended
--- | ---
Sep. 30, 2019 | Sep. 30, 2018
Income Tax Disclosure [Abstract] |  |
Income benefit at statutory federal rate | $ (5,505,000) | $ (4,215,000)
Foreign income taxed at other rates | (825,000) | (173,000)
Other permanent differences | 140,000 | 131,000
Research and development credit benefit | 914,000 | (102,000)
Adjustment and true up to prior years' tax provision | 194,000 | (82,000)
Effect of changes in tax rates |  | 6,832,000
State minimum and excise taxes | 82,181 | 72,746
Change in Federal valuation allowance | 5,082,000 | (2,391,000)
Income tax expense | $ 82,181 | $ 72,746

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