CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Operating expenses:
Research and development	$ 52,417	$ 54,845
General and administrative	20,951	15,708
Loss from operations	(73,368)	(70,553)
Other income (expenses):
Interest income	32	1,174
Interest expense	(7,194)	(4,880)
Foreign currency gain (loss)	(4)	25
Loss before income tax benefit	(80,534)	(74,234)
Income tax benefit	0	16
Net loss	$ (80,534)	$ (74,218)
Net loss per share of common stock, basic and diluted	$ (3.12)	$ (2.98)
Weighted-average shares of common stock outstanding, basic and diluted	25,789,458	24,869,770