Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Condensed Consolidated Statements of Operations and Comprehensive Loss
Revenue, net	$ 31	$ 1,243
Revenue, net - related parties	5	2,180
Total revenue	36	3,423
Cost of sales	19,670	6,733
Gross profit	(19,634)	(3,310)
Expenses:
Sales and marketing expenses	11,145	12,834
Research and development expenses	7,362	7,108
General and administrative expenses	5,690	6,516
Operating loss	(43,831)	(29,768)
Other income, net:
Interest income	209	627
Loss on extinguishment of debt	(4,546)
Interest expense	(4,373)	(2,034)
Change in fair value of derivative liabilities	10,311	2,072
Other expense	(363)	(262)
Total other income, net	1,238	403
Net loss	(42,593)	(29,365)
Total comprehensive loss	$ (42,593)	$ (29,365)
Basic and diluted net loss per common share	$ (0.21)	$ (0.17)
Basic and diluted weighted-average shares outstanding	203,745,974	176,954,116