Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenues:
Total revenues	$ 0	$ 0
Cost and expenses:
Research and development	6,741	5,829
General and administrative	3,874	3,733
Total cost and expenses	10,615	9,562
Loss from operations	(10,615)	(9,562)
Other income (expense):
Interest income (expense), net	478	(239)
Total other income (expense)	478	(239)
Loss from operations, before income taxes	(10,137)	(9,801)
Income tax benefit	0	0
Net loss	(10,137)	(9,801)
Comprehensive loss	$ (10,137)	$ (9,801)
Net loss per share:
Basic and diluted net loss per share (in dollars per share)	$ (0.18)	$ (0.26)
Weighted average shares used to compute net loss per common share — basic and diluted (in shares)	55,172	37,390