Condensed Consolidated Statements of Operations and Comprehensive Loss (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Operating expenses:
Research and development	$ 7,505	$ 2,103	$ 12,275	$ 5,067
General and administrative	3,560	2,442	6,621	3,726
Total operating expenses	11,065	4,545	18,896	8,793
Loss from operations	(11,065)	(4,545)	(18,896)	(8,793)
Other income:
Interest income	26	5	55	21
Total other income	26	5	55	21
Net loss	(11,039)	(4,540)	(18,841)	(8,772)
Comprehensive loss	$ (11,039)	$ (4,540)	$ (18,841)	$ (8,772)
Net loss per share attributable to common stockholders—basic and diluted	$ (0.85)	$ (0.56)	$ (1.45)	$ (2.11)
Weighted-average common shares outstanding—basic and diluted	12,991,837	8,182,725	12,968,820	4,206,793