Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating expenses:
Research and development	$ 60,795	$ 61,307	$ 30,214
General and administrative	29,523	17,586	8,954
Total operating expenses	90,318	78,893	39,168
Loss from operations	(90,318)	(78,893)	(39,168)
Interest income	620	2,044	2,188
Other expense	(247)	0	0
Net loss	(89,945)	(76,849)	(36,980)
Other comprehensive income / (loss):
Foreign currency translation adjustments	20	0	0
Unrealized gain / (loss) on available for sales securities	(412)	253	109
Total comprehensive loss	$ (90,337)	$ (76,596)	$ (36,871)
Net loss per share - basic and diluted	$ (3.03)	$ (2.63)	$ (1.94)
Weighted average shares of common stock outstanding - basic and diluted	29,718,506	29,176,232	19,031,940