STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating expenses:
Research and development	$ 21,834	$ 22,821
General and administrative	7,281	7,467
Total operating expenses	29,115	30,288
Loss from operations	(29,115)	(30,288)
Other income, net	1,397	823
Net loss	$ (27,718)	$ (29,465)
Per share information:
Net loss per share of common stock, basic	$ (0.58)	$ (0.63)
Net loss per share of common stock, diluted	$ (0.58)	$ (0.63)
Weighted average common shares outstanding, basic	47,737,190	47,066,427
Weighted average common shares outstanding, diluted	47,737,190	47,066,427
Comprehensive loss
Net loss	$ (27,718)	$ (29,465)
Unrealized gain (loss) on marketable securities, net of tax	1,294	(1,602)
Comprehensive loss	$ (26,424)	$ (31,067)