Condensed Consolidated Statements of Operations - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Operating expenses:
Research and development	$ 2,688,159	$ 1,857,856	$ 4,762,130	$ 4,891,395
General and administrative	2,227,947	1,156,494	4,144,977	1,490,023
Total operating expenses	4,916,106	3,014,350	8,907,107	6,381,418
Loss from operations	(4,916,106)	(3,014,350)	(8,907,107)	(6,381,418)
Other income (expense):
Interest income	36,555	1,425	67,245	1,826
Interest expense	0	(109,722)	0	(122,753)
Foreign currency transaction gain	44,061	0	20,768	0
Total other income (expense), net	80,616	(108,297)	88,013	(120,927)
Net loss	$ (4,835,490)	$ (3,122,647)	$ (8,819,094)	$ (6,502,345)
Net loss per share - basic and diluted	$ (0.64)	$ (1.29)	$ (1.18)	$ (2.65)
Weighted average common shares outstanding - basic and diluted	7,497,433	2,423,370	7,497,433	2,450,000