CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Operating expenses:
Research and development	$ 13,937	$ 17,399	$ 48,643	$ 45,776
General and administrative	6,267	5,513	19,595	16,068
Total operating expenses	20,204	22,912	68,238	61,844
Loss from operations	(20,204)	(22,912)	(68,238)	(61,844)
Other income (expense):
Interest income	522	483	1,074	1,546
Other expense, net	(157)	(477)	(489)	(1,434)
Total other income, net	365	6	585	112
Net loss	$ (19,839)	$ (22,906)	$ (67,653)	$ (61,732)
Net loss per share attributable to common stockholders, basic	$ (0.54)	$ (0.67)	$ (1.89)	$ (1.80)
Net loss per share attributable to common stockholders, diluted	$ (0.54)	$ (0.67)	$ (1.89)	$ (1.80)
Weighted-average common shares outstanding, basic	36,905,818	34,436,793	35,766,217	34,360,274
Weighted-average common shares outstanding, diluted	36,905,818	34,436,793	35,766,217	34,360,274
Unrealized gain (loss) on marketable securities	$ 169	$ (31)	$ (540)	$ (26)
Total other comprehensive income (loss)	169	(31)	(540)	(26)
Total comprehensive loss	$ (19,670)	$ (22,937)	$ (68,193)	$ (61,758)