CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues
Technology development revenue	$ 2,004	$ 1,390	$ 3,094	$ 2,922
Collaboration revenue	365	149	1,096	408
Total revenues	2,369	1,539	4,190	3,330
Operating expenses
Research and development	15,525	10,730	47,593	28,820
Selling, general and administrative	11,407	9,733	32,803	19,597
Depreciation and amortization	3,404	2,218	9,451	3,895
Total operating expenses	30,336	22,681	89,847	52,312
Operating loss	(27,967)	(21,142)	(85,657)	(48,982)
Other income (expense)
Interest expense	(279)	(768)	(685)	(3,232)
Other income (expense), net	675	(3,427)	948	(31,377)
Total other income (expense), net	396	(4,195)	263	(34,609)
Loss before income taxes	(27,571)	(25,337)	(85,394)	(83,591)
Income tax (expense) benefit	312	1,703	(39)	7,797
Net loss	(27,259)	(23,634)	(85,433)	(75,794)
Cumulative undeclared preferred stock dividends	0	(242)	0	(2,284)
Net loss applicable to common stockholders basic	(27,259)	(23,876)	(85,433)	(78,078)
Net loss applicable to common stockholders diluted	$ (27,259)	$ (23,876)	$ (85,433)	$ (78,078)
Net loss per share attributable to common stockholders: basic (usd per share)	$ (0.30)	$ (0.33)	$ (0.94)	$ (2.16)
Net loss per share attributable to common stockholders: diluted (usd per share)	$ (0.30)	$ (0.33)	$ (0.94)	$ (2.16)
Weighted-average common shares outstanding: basic (in shares)	91,105,265	73,291,288	90,686,517	36,177,105
Weighted-average common shares outstanding: diluted (in shares)	91,105,265	73,291,288	90,686,517	36,177,105
Comprehensive loss:
Net loss	$ (27,259)	$ (23,634)	$ (85,433)	$ (75,794)
Foreign currency translation adjustments	(27)	(4)	(77)	(15)
Unrealized gain on investments	114	0	116	0
Comprehensive loss	$ (27,172)	$ (23,638)	$ (85,394)	$ (75,809)