CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Operating expenses
Research and development	$ 981	$ 2,000	$ 3,002	$ 5,038
General and administrative	1,088	970	3,324	3,319
Total operating expenses	2,069	2,970	6,326	8,357
Net operating loss	(2,069)	(2,970)	(6,326)	(8,357)
Other income
Interest income		2	2	25
Total other income		2	2	25
Net loss	$ (2,069)	$ (2,968)	$ (6,324)	$ (8,332)
Net loss per share, basic and diluted	$ (0.29)	$ (0.80)	$ (0.96)	$ (2.26)
Basic and diluted weighted average number of common shares outstanding	7,038	3,692	6,578	3,692