CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Operating expenses
Research and development	$ 1,851	$ 760	$ 3,949	$ 2,021
General and administrative	1,159	1,049	2,420	2,236
Total operating expenses	3,010	1,809	6,369	4,257
Net operating loss	(3,010)	(1,809)	(6,369)	(4,257)
Other income
Interest income	2	1	2	2
Total other income	2	1	2	2
Net loss	$ (3,008)	$ (1,808)	$ (6,367)	$ (4,255)
Net loss per share, basic (in dollars per share)	$ (0.42)	$ (0.26)	$ (0.89)	$ (0.67)
Net loss per share, diluted (in dollars per share)	$ (0.42)	$ (0.26)	$ (0.89)	$ (0.67)
Weighted average number of common shares outstanding, basic (in shares)	7,160	6,960	7,160	6,344
Weighted average number of common shares outstanding, diluted (in shares)	7,160	6,960	7,160	6,344