Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating expenses:
Research and development	$ 19,849	$ 10,131
General and administrative	5,259	4,608
Total operating expenses	25,108	14,739
Loss from operations	(25,108)	(14,739)
Other expenses, net	(456)	(43)
Net loss before tax	(25,564)	(14,782)
Income tax expense	(1)
Net loss	(25,565)	(14,782)
Other comprehensive income (loss):
Unrealized loss on available-for-sale securities	(195)	(4)
Foreign currency translation adjustments	3	11
Total other comprehensive income (loss)	(192)	7
Comprehensive loss	$ (25,757)	$ (14,775)
Net loss per share, basic and diluted	$ (1.26)	$ (0.74)
Weighted-average shares used to compute net loss per share, basic and diluted	20,339,416	20,010,412