Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenue	$ 11,351	$ 3,461	$ 31,868	$ 3,833
Cost of revenue	1,244	309	3,568	357
Gross profit	10,107	3,152	28,300	3,476
Operating expense:
Research and development expense	11,923	10,211	34,560	34,905
Selling, general and administrative expense	21,624	22,065	66,117	68,056
Operating loss	(23,440)	(29,124)	(72,377)	(99,485)
Financing on prepaid forward obligation	(6,828)	0	(9,948)	0
Interest and other income, net	57	308	269	1,527
Loss before income taxes	(30,211)	(28,816)	(82,056)	(97,958)
Income tax expense	0	0	312	0
Net Loss	(30,211)	(28,816)	(82,368)	(97,958)
Statements of Comprehensive Loss
Net loss	(30,211)	(28,816)	(82,368)	(97,958)
Other comprehensive income
Unrealized (loss) gain on marketable securities	(41)	(268)	(267)	216
Comprehensive Loss	$ (30,252)	$ (29,084)	$ (82,635)	$ (97,742)
Net loss per ordinary share basic and diluted (in dollars per share)	$ (1.35)	$ (1.31)	$ (3.69)	$ (4.52)
Weighted average number of shares outstanding used in computation of basic and diluted loss per ordinary share (in shares)	22,380,598	22,058,343	22,318,589	21,657,712