Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenue
Customer revenue	$ 15,569	$ 5,112	$ 37,665	$ 19,760
Collaboration revenue	3,951	258	3,846	296
Total revenue	19,520	5,370	41,511	20,056
Operating expenses
Research and development	9,595	13,589	37,347	39,602
General and administrative	6,839	3,949	14,526	12,409
Asset impairment	14,893	0	14,893	0
Total operating expenses	31,327	17,538	66,766	52,011
Loss from operations	(11,807)	(12,168)	(25,255)	(31,955)
Other income (expense)
Interest income	549	241	1,396	370
Grant income	0	1,468	3,612	4,782
Other income (loss)	506	723	288	1,628
Net loss	(10,752)	(9,736)	(19,959)	(25,175)
Other comprehensive income loss:
Foreign currency translation	(204)	(31)	(159)	(387)
Unrealized gain on available-for-sale securities	2	(70)	74	82
Comprehensive loss	$ (10,954)	$ (9,837)	$ (20,044)	$ (25,480)
Net loss per share
Basic and diluted (in dollars per share)	$ (0.11)	$ (0.13)	$ (0.23)	$ (0.34)
Weighted average number of common shares outstanding
Basic and diluted (in shares)	98,852	74,397	87,093	74,080