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Income Taxes (Details 1) - USD ($) | 12 Months Ended
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Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2016
Income Tax Disclosure [Abstract] |  |  |
Income benefit at statutory rate | $ (4,215,000) | $ (4,577,000) | $ (5,010,000)
Foreign income taxed at other rates | (173,000) | 68,000 | 132,000
Permanent differences |  |  |
Non-deductible finance and accretion expenses |  |  | 5,000
Non-deductible compensation costs |  |  | 738,000
Other permanent differences | 1,000 | 2,000 |
Research and development tax credit | (77,000) | (23,000) | 628,000
Expiry of foreign net operating loss carryforwards |  |  | 333,000
Adjustment and true up to prior years' tax provision | 336,000 | (55,000) | 176,000
Effect of changes in tax rates | 7,166,000 |  | (11,000)
Change in valuation allowance related to current year provision | (3,038,000) | 4,585,000 | 3,009,000
Income Tax Recovery |  |  |

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