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Income Taxes (Details 1) - USD ($)	12 Months Ended
	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
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