CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenues
Technology development revenue	$ 454	$ 940
Collaboration revenue	365	123
Total revenues	819	1,063
Operating expenses
Research and development	15,827	7,050
Selling, general and administrative	10,889	4,685
Depreciation and amortization	2,906	476
Total operating expenses	29,622	12,211
Operating loss	(28,803)	(11,148)
Other expense
Interest expense	(195)	(455)
Other income, net	125	164
Total other expense, net	(70)	(291)
Loss before income taxes	(28,873)	(11,439)
Income tax (expense) benefit	(621)	477
Net loss	(29,494)	(10,962)
Cumulative undeclared preferred stock dividends	0	(995)
Net loss applicable to common stockholders and unitholders, basic	(29,494)	(11,957)
Net loss applicable to common stockholders and unitholders, diluted	$ (29,494)	$ (11,957)
Net loss per share attributable to common stockholders: basic (usd per share)	$ (0.33)	$ (0.70)
Net loss per share attributable to common stockholders: diluted (usd per share)	$ (0.33)	$ (0.70)
Weighted-average common shares outstanding: basic (in shares)	90,272,205	16,980,074
Weighted-average common shares outstanding: diluted (in shares)	90,272,205	16,980,074
Comprehensive loss:
Net loss	$ (29,494)	$ (10,962)
Foreign currency translation adjustments	(10)	0
Comprehensive loss	$ (29,504)	$ (10,962)