CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenues
Technology development revenue	$ 636	$ 592	$ 1,090	$ 1,532
Collaboration revenue	366	136	731	259
Total revenues	1,002	728	1,821	1,791
Operating expenses
Research and development	16,241	11,040	32,068	18,090
Selling, general and administrative	10,507	5,179	21,396	9,864
Depreciation and amortization	3,141	1,201	6,047	1,677
Total operating expenses	29,889	17,420	59,511	29,631
Operating loss	(28,887)	(16,692)	(57,690)	(27,840)
Other expense
Interest expense	(211)	(2,009)	(406)	(2,464)
Other income (expense), net	148	(28,114)	273	(27,950)
Total other expense, net	(63)	(30,123)	(133)	(30,414)
Loss before income taxes	(28,950)	(46,815)	(57,823)	(58,254)
Income tax (expense) benefit	270	5,617	(351)	6,094
Net loss	(28,680)	(41,198)	(58,174)	(52,160)
Cumulative undeclared preferred stock dividends	0	(1,047)	0	(2,042)
Net loss applicable to common stockholders basic	(28,680)	(42,245)	(58,174)	(54,202)
Net loss applicable to common stockholders diluted	$ (28,680)	$ (42,245)	$ (58,174)	$ (54,202)
Net loss per share attributable to common stockholders: basic (usd per share)	$ (0.32)	$ (2.39)	$ (0.64)	$ (3.13)
Net loss per share attributable to common stockholders: diluted (usd per share)	$ (0.32)	$ (2.39)	$ (0.64)	$ (3.13)
Weighted-average common shares outstanding: basic (in shares)	90,669,499	17,641,147	90,471,950	17,312,437
Weighted-average common shares outstanding: diluted (in shares)	90,669,499	17,641,147	90,471,950	17,312,437
Comprehensive loss:
Net loss	$ (28,680)	$ (41,198)	$ (58,174)	$ (52,160)
Foreign currency translation adjustments	(40)	(11)	(50)	(11)
Unrealized gain on investments	2	0	2	0
Comprehensive loss	$ (28,718)	$ (41,209)	$ (58,222)	$ (52,171)