CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating expenses
Research and development	$ 398	$ 932
General and administrative	1,122	987
Total operating expenses	1,520	1,919
Net operating loss	(1,520)	(1,919)
Other income (loss)
Interest income	8	3
Total other income	8	3
Net loss	$ (1,512)	$ (1,916)
Net loss per share, basic and diluted	$ (0.89)	$ (3.38)
Basic and diluted weighted average number of common shares outstanding	1,700	567