CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Operating expenses
Research and development	$ 760	$ 1,030	$ 2,021	$ 3,038
General and administrative	1,049	1,013	2,236	2,349
Total operating expenses	1,809	2,043	4,257	5,387
Net operating loss	(1,809)	(2,043)	(4,257)	(5,387)
Other income
Interest income	1	3	2	23
Total other income	1	3	2	23
Net loss	$ (1,808)	$ (2,040)	$ (4,255)	$ (5,364)
Net loss per share, basic and diluted	$ (0.26)	$ (0.55)	$ (0.67)	$ (1.45)
Basic and diluted weighted average number of common shares outstanding	6,960	3,692	6,344	3,692