CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
CONSOLIDATED STATEMENTS OF OPERATIONS
Revenues	$ 0	$ 0
Operating expenses:
Research and development	1,592	2,069
General and administrative	7,044	3,256
Total operating expenses	8,636	5,325
Operating loss	(8,636)	(5,325)
Other income (expense), net:
Forgiveness of notes payable	408	0
Grant income	165	447
Change in fair value of warrant liability	15	16
Other income (expense), net	70	(3)
Total other income, net	658	460
Net loss	$ (7,978)	$ (4,865)
Basic net loss per share (in dollars per share)	$ (0.79)	$ (0.55)
Diluted net loss per share (in dollars per share)	$ (0.79)	$ (0.55)
Weighted-average common shares, basic	10,062,432	8,793,545
Weighted-average common shares, diluted	10,062,432	8,793,545