Unaudited Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Collaboration revenues	$ 3,397	$ 3,243
Operating expenses:
Research and development	17,462	16,641
General and administrative	5,445	9,574
Total operating expenses	22,907	26,215
Operating loss	(19,510)	(22,972)
Change in fair value of derivative liability	0	(84)
Interest income (expense), net	532	(1,477)
Pre-tax loss	(18,978)	(24,533)
Income tax expense	0	(109)
Net loss	$ (18,978)	$ (24,642)
Share information:
Net loss per share of common stock, basic (in USD per share)	$ (0.46)	$ (1.93)
Net loss per share of common stock, diluted (in USD per share)	$ (0.46)	$ (1.93)
Weighted-average shares of common stock outstanding, basic (in shares)	40,938,464	12,783,523
Weighted-average shares of common stock outstanding, diluted (in shares)	40,938,464	12,783,523
Comprehensive loss
Net loss	$ (18,978)	$ (24,642)
Unrealized gain on marketable securities	0	177
Comprehensive loss	$ (18,978)	$ (24,465)