Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2022	Dec. 31, 2020
Income Statement [Abstract]
Revenue, net, including related parties (Note 16)	$ 2,425	$ 24,050	$ 11,371
Cost of goods sold	1,788	12,530	6,682
Gross profit	637	11,520	4,689
Operating expenses:
Research and development	1,780	6,655	5,584
Sales and marketing	663	3,535	2,174
General and administrative	2,733	11,226	10,328
Total operating expenses	5,176	21,416	18,086
Loss from operations	(4,539)	(9,896)	(13,397)
Interest expense	187	792	760
Loss in joint venture	1,468	3,971	6,836
Changes in fair value of promissory note	699	(605)	(927)
Other income, net	(314)	(3,819)	(2,157)
Loss before tax expense	(6,579)	(10,235)	(17,909)
Tax expense	0	0	0
Net loss	$ (6,579)	$ (10,235)	$ (17,909)
Net loss per share - basic (in usd per share)	$ (0.16)	$ (0.22)	$ (0.56)
Net loss per share - diluted (in usd per share)	$ (0.16)	$ (0.22)	$ (0.56)
Weighted average common shares outstanding - basic (in shares)	40,274,660	46,056,331	31,739,801
Weighted average common shares outstanding - diluted (in shares)	40,274,660	46,056,331	31,739,801