CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating expenses
Research and development	$ 9,165	$ 5,910
General and administrative	4,736	4,533
Total operating expenses	13,901	10,443
Net operating loss	(13,901)	(10,443)
Other income
Interest income	33	3
Total other income	33	3
Net loss	$ (13,868)	$ (10,440)
Net loss per share, basic (in dollars per share)	$ (1.91)	$ (1.55)
Weighted average number of common shares outstanding, basic (in shares)	7,276	6,725
Net loss per share, diluted (in dollars per share)	$ (1.91)	$ (1.55)
Weighted average number of common shares outstanding, diluted (in shares)	7,276	6,725