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Income Taxes (Details 1) - USD ($) | Sep. 30, 2019 | Sep. 30, 2018
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Income Tax Disclosure [Abstract] |  |
Net operating loss carryforwards | $ 18,704,000 | $ 13,556,000
Research and development tax credit carryforwards | 1,162,000 | 1,605,000
Stock-based compensation | 6,570,000 | 4,677,000
Unpaid charges | 69,000 | 91,000
Intangible asset costs | 30,000 | 35,000
Foreign exchange and other | 15,000 | 16,000
Valuation allowance for deferred tax assets | (26,551,000) | (19,981,000)
Net deferred tax assets |  |

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