Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Collaboration revenue	$ 3,637	$ 0
Operating expenses:
Research and development (includes related party amounts of $1,609 and $1,640, respectively)	26,237	3,041
General and administrative (includes related party amounts of $325 and $861, respectively)	10,329	1,802
Total operating expenses	36,566	4,843
Loss from operations	(32,929)	(4,843)
Other income (expense):
Interest income	257	0
Interest expense – related parties	0	(206)
Change in fair value of convertible promissory notes - related parties	0	(1,735)
Total other income (expense)	257	(1,941)
Net loss	(32,672)	(6,784)
Other comprehensive loss:
Unrealized gain (loss) on available-for-sale securities, net	(270)	0
Comprehensive loss	$ (32,942)	$ (6,784)
Net loss per common share, basic and diluted	$ (1.39)	$ (7.41)
Weighted-average shares of common stock outstanding, basic and diluted	23,530,252	915,146