STATEMENTS OF OPERATIONS - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Grant income	$ 298,726	$ 150,769	$ 334,232	$ 277,183
Operating Expenses:
Research and development	4,458,547	2,832,546	8,711,360	6,304,260
General & administrative	2,558,522	1,624,823	5,197,418	3,313,985
Total operating expenses	7,017,069	4,457,369	13,908,778	9,618,245
Operating loss	(6,718,343)	(4,306,600)	(13,574,546)	(9,341,062)
Other income	18,448	18,216	36,896	36,127
(Loss)/gain on derivative instruments	(3,049,027)	(967,171)	(2,282,518)	4,589,135
Other non-operating gain	934,511	(730,823)	1,725,180	421,353
Interest expense, net	(253,407)	(461,303)	(504,190)	(907,332)
Net loss	(9,067,818)	(6,447,681)	(14,599,178)	(5,201,779)
Modification of warrants	(21,734)	0	(21,734)	0
Net loss available to common shareholders	$ (9,089,552)	$ (6,447,681)	$ (14,620,912)	$ (5,201,779)
Net loss per common share
Basic	$ (0.25)	$ (0.22)	$ (0.41)	$ (0.18)
Diluted	$ (0.25)	$ (0.22)	$ (0.41)	$ (0.19)
Weighted average common shares outstanding
Basic	36,165,050	29,113,910	35,621,711	28,543,417
Diluted	36,165,050	29,113,910	35,621,711	28,548,818