Unaudited Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenues	$ 2,500	$ 2,500
Operating expenses:
Research and development expenses	2,902,086	3,065,590
General and administrative expenses	1,332,421	3,170,522
Total operating expenses	4,234,507	6,236,112
Operating loss	(4,232,007)	(6,233,612)
Other income (expense):
Interest income	20,883	11,136
Interest expense	(138,732)	(386,506)
Change in fair value of derivative instruments	(2,741,314)
Warrant inducement and other expenses	(476,084)	3,199
Total other income (expense)	(3,335,247)	(372,171)
Net loss	$ (7,567,254)	$ (6,605,783)
Net loss per share - basic and diluted (in dollars per share)	$ (0.68)	$ (0.93)
Weighted average common shares outstanding - basic and diluted (in shares)	11,140,898	7,077,676
Comprehensive loss:
Net loss	$ (7,567,254)	$ (6,605,783)
Foreign currency translation adjustment	(171)	(1,773)
Comprehensive loss	$ (7,567,425)	$ (6,607,556)