CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating expenses
Research and development	$ 2,098	$ 1,261
General and administrative	1,261	1,187
Total operating expenses	3,359	2,448
Net operating loss	(3,359)	(2,448)
Other income
Interest income		1
Total other income		1
Net loss	$ (3,359)	$ (2,447)
Net loss per share, basic (in dollars per share)	$ (0.47)	$ (0.43)
Net loss per share, diluted (in dollars per share)	$ (0.47)	$ (0.43)
Weighted average number of common shares outstanding, basic (in shares)	7,160	5,721
Weighted average number of common shares outstanding, diluted (in shares)	7,160	5,721