STATEMENTS OF OPERATIONS - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Income Statement [Abstract]
Grant income	$ 150,769	$ 114,271	$ 277,183	$ 210,586
Operating Expenses:
Research and development	2,525,460	2,962,297	5,657,648	5,288,311
General & administrative	1,931,909	1,375,410	3,960,597	4,074,723
Total operating expenses	4,457,369	4,337,707	9,618,245	9,363,034
Operating loss	(4,306,600)	(4,223,436)	(9,341,062)	(9,152,448)
Other income	18,216	17,691	36,127	35,273
(Loss) gain on derivative instruments	(967,171)	1,154,815	4,589,135	196,585
Other non-operating gain (loss)	(730,823)	(768,810)	421,353	(22,109)
Interest expense, net	(461,303)	(888,395)	(907,332)	(1,953,266)
Net loss available to common shareholders	$ (6,447,681)	$ (4,708,135)	$ (5,201,779)	$ (10,895,965)
Net loss per common share
Basic	$ (0.22)	$ (0.31)	$ (0.18)	$ (0.81)
Diluted	$ (0.22)	$ (0.31)	$ (0.19)	$ (0.81)
Weighted average common shares outstanding
Basic	29,113,910	15,210,296	28,543,417	13,403,878
Diluted	29,113,910	15,210,296	28,548,818	13,403,878