Condensed Consolidated Statements of Operations - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Operating expenses:
Research and development	$ 2,377,916	$ 2,057,421	$ 7,140,046	$ 6,948,816
General and administrative	1,729,446	1,302,401	5,874,423	2,792,424
Total operating expenses	4,107,362	3,359,822	13,014,469	9,741,240
Loss from operations	(4,107,362)	(3,359,822)	(13,014,469)	(9,741,240)
Other income (expense):
Interest income	138,671	2,993	205,916	4,819
Interest expense	0	(120,229)	0	(242,982)
Loss on disposal of asset	0	(967)	0	(967)
Foreign currency transaction gain	3,180	0	23,948	0
Total other income (expense), net	141,851	(118,203)	229,864	(239,130)
Net loss	$ (3,965,511)	$ (3,478,025)	$ (12,784,605)	$ (9,980,370)
Net loss per share - basic and diluted	$ (0.43)	$ (1.09)	$ (1.59)	$ (3.69)
Weighted average common shares outstanding - basic and diluted	9,136,321	3,199,796	8,049,732	2,702,678