Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Research and development	$ 5,973	$ 4,630	$ 16,733	$ 12,451
General and administrative	2,798	3,106	8,973	7,197
Loss from operations	(8,771)	(7,736)	(25,706)	(19,648)
Interest expense	(389)	(437)	(1,186)	(944)
Interest and other (expense) income, net	213	63	286	69
Total other (expense) income, net	(176)	(374)	(900)	(875)
Provision for income taxes	0	0	0	0
Net loss	$ (8,947)	$ (8,110)	$ (26,606)	$ (20,523)
Net loss per share of common stock, basic (in dollars per share)	$ (0.66)	$ (1.21)	$ (2.46)	$ (7.49)
Net loss per share of common stock, diluted (in dollars per share)	$ (0.66)	$ (1.21)	$ (2.46)	$ (7.49)
Weighted-average shares of common stock outstanding, basic (in shares)	13,635,927	6,717,655	10,815,900	2,739,602
Weighted-average shares of common stock outstanding, diluted (in shares)	13,635,927	6,717,655	10,815,900	2,739,602
Foreign currency translation adjustment	$ 0	$ (89)	$ 0	$ (89)
Comprehensive loss	$ (8,947)	$ (8,199)	$ (26,606)	$ (20,612)