Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Operating expenses:
Research and development	$ 1,459	$ 928	$ 4,285	$ 3,352
General and administrative	1,273	1,185	4,473	6,405
Total operating expenses	2,732	2,113	8,758	9,757
Operating loss	(2,732)	(2,113)	(8,758)	(9,757)
Other income / (expense):
Interest income	51	71	222	122
Other income	2	834	78	902
Derivatives loss		(1,967)		(12,165)
Other income / (expense), net	53	(1,062)	300	(11,141)
Net loss	$ (2,679)	$ (3,175)	$ (8,458)	$ (20,898)
Net loss per share, basic and diluted (in dollars per share)	$ (0.29)	$ (0.42)	$ (0.91)	$ (5.81)
Weighted average number of common shares outstanding, basic and diluted (In Shares)	9,311,956	7,562,807	9,311,258	3,597,460