Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Operating expenses
Research and development	$ 5,160	$ 2,206	$ 10,097	$ 7,383
General and administrative	3,045	2,952	9,456	8,310
Total operating expenses	8,205	5,158	19,553	15,693
Operating loss	(8,205)	(5,158)	(19,553)	(15,693)
Other income (expense), net	194	(39)	84	(81)
Loss before income taxes	(8,011)	(5,197)	(19,469)	(15,774)
Income taxes	0	0	0	0
Net loss	(8,011)	(5,197)	(19,469)	(15,774)
Foreign currency translation adjustment	(54)	0	(54)	0
Comprehensive loss	$ (8,065)	$ (5,197)	$ (19,523)	$ (15,774)
Loss per share of common stock - basic and diluted (in dollars per share)	$ (0.06)	$ (0.04)	$ (0.15)	$ (0.14)
Weighted average shares outstanding - basic and diluted (in shares)	126,624	126,538	126,624	113,690