CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS UNAUDITED - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenue:
Revenue	$ 111	$ 92	$ 363	$ 462
Expenses:
Research and development	2,083	1,636	5,862	4,603
General and administrative	1,518	1,547	4,748	4,583
Total expenses	3,601	3,183	10,610	9,186
Loss from operations	(3,490)	(3,091)	(10,247)	(8,724)
Other income (expense):
Gain on investment in related party	0	700	0	700
Other income (expense), net	10	(1)	11	(2)
Total other income (expense)	10	699	11	698
Loss from operations before income taxes	(3,480)	(2,392)	(10,236)	(8,026)
Income tax provision	(9)	(6)	(27)	(25)
Net loss	$ (3,489)	$ (2,398)	$ (10,263)	$ (8,051)
Basic net loss per share (in USD per share)	$ (0.71)	$ (0.49)	$ (2.09)	$ (1.72)
Diluted net loss per share (in USD per share)	$ (0.71)	$ (0.49)	$ (2.09)	$ (1.72)
Number of shares used in per share calculations:
Basic (in shares)	4,924,606	4,873,248	4,904,737	4,681,292
Diluted (in shares)	4,924,606	4,873,248	4,904,737	4,681,292
Grant
Revenue:
Revenue	$ 111	$ 92	$ 363	$ 462