Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenue:
Total revenue	$ 3,312,000	$ 62,000
Total cost of revenue	2,068,000	0
Gross profit	1,244,000	62,000
Operating expenses:
Research and development	10,732,000	6,227,000
Selling, general and administrative	14,298,000	10,333,000
Total operating expenses	25,030,000	16,560,000
Loss from operations	(23,786,000)	(16,498,000)
Other income (expense):
Interest income	144,000	69,000
Other expense	(4,000)	0
Total other income	140,000	69,000
Net loss	(23,646,000)	(16,429,000)
Other comprehensive loss:
Unrealized loss on available-for-sale securities	(1,691,000)	(26,000)
Comprehensive loss	$ (25,337,000)	$ (16,455,000)
Net loss per share attributable to common shareholders, basic (in usd per share)	$ (0.38)	$ (0.27)
Net loss per share attributable to common shareholders, diluted (in usd per share)	$ (0.38)	$ (0.27)
Weighted-average common shares outstanding, basic (in shares)	62,003,504	59,887,842
Weighted average number of shares outstanding, diluted (in shares)	62,003,504	59,887,842
Product
Revenue:
Total revenue	$ 2,149,000	$ 0
Total cost of revenue	1,660,000	0
Service
Revenue:
Total revenue	79,000	0
Total cost of revenue	14,000	0
Related party
Revenue:
Total revenue	1,070,000	0
Total cost of revenue	394,000	0
Grant and other
Revenue:
Total revenue	$ 14,000	$ 62,000