Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating expenses:
Research and development	$ 1,110	$ 1,398
General and administrative	1,668	3,434
Total operating expenses	2,778	4,832
Operating loss	(2,778)	(4,832)
Other income / (expense):
Interest income / (expense), net	99	18
Other income / (expense), net	44	42
Derivatives loss		(12)
Other income / (expense), net	143	48
Net loss	$ (2,635)	$ (4,784)
Net loss per share, basic and diluted (in dollars per share)	$ (0.28)	$ (3.34)
Weighted average number of common shares outstanding, basic and diluted	9,310,448	1,432,963