Condensed Statements of Operations - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating expenses:
Research and development	$ 2,322,905	$ 3,946,220
General and administrative	2,648,551	4,230,698
Total operating expenses	4,971,456	8,176,918
Loss from operations	(4,971,456)	(8,176,918)
Other income, net:
Interest income	25,742	185,143
Foreign currency transaction (loss) gain	(2,993)	23,070
Total other income, net	22,749	208,213
Net loss	$ (4,948,707)	$ (7,968,705)
Net loss per share - basic and diluted	$ (0.49)	$ (0.79)
Weighted average common shares outstanding - basic and diluted	10,097,107	10,087,363