Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Net sales	$ 1,627	$ 0
Grant and other income	1,095	2,423
Cost of goods sold	1,603	0
Gross Profit	1,119	2,423
Operating expenses
Research and development	60,438	40,654
Selling, general and administrative	63,061	21,113
Total operating expenses	123,499	61,767
Loss from operations	(122,380)	(59,344)
Other income (expense)
Interest and other income	2,813	1,613
Interest expense	(7,163)	(2,545)
Change in fair value of warrants	692	196
Other income (expense)	(3,658)	(736)
Net loss before benefit from income taxes	(126,038)	(60,080)
Benefit from income taxes	458	0
Net loss	(125,580)	(60,080)
Other comprehensive gain (loss), net of tax
Unrealized gains (losses) on investments	93	(52)
Foreign currency translation adjustments	2	0
Comprehensive gain (loss)	$ (125,485)	$ (60,132)
Net loss per common share - basic and diluted	$ (4.81)	$ (4.99)
Weighted average common shares outstanding - basic and diluted	26,110,297	12,045,999