Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Operating expenses:
Research and development	$ 9,388	$ 7,422	$ 21,950	$ 20,743
General and administrative	3,841	3,498	12,111	11,649
Restructuring charges	0	0	0	5,107
Total operating expenses	13,229	10,920	34,061	37,499
Loss from operations	(13,229)	(10,920)	(34,061)	(37,499)
Interest income (expense), net	360	295	988	(285)
Loss on extinguishment of debt	0	0	(942)	0
Total other income (expense), net	360	295	46	(285)
Loss before income taxes	(12,869)	(10,625)	(34,015)	(37,784)
Income tax expense	12	11	34	21
Net loss	$ (12,881)	$ (10,636)	$ (34,049)	$ (37,805)
Net loss per share
Net loss per share, basic (in dollars per share)	$ (0.22)	$ (0.23)	$ (0.60)	$ (1.14)
Net loss per share, diluted (in dollars per share)	$ (0.22)	$ (0.23)	$ (0.60)	$ (1.14)
Weighted average common shares outstanding, basic (in shares)	59,108,724	46,842,489	56,655,302	33,040,434
Weighted average common shares outstanding, diluted (in shares)	59,108,724	46,842,489	56,655,302	33,040,434
Other comprehensive income:
Unrealized gain on marketable securities	$ 154	$ 1	$ 119	$ 160
Total other comprehensive income	154	1	119	160
Total comprehensive loss	$ (12,727)	$ (10,635)	$ (33,930)	$ (37,645)