Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Revenue	$ 72,916	$ 38,715	$ 193,766	$ 91,059
Cost of goods sold	7,040	3,228	16,477	9,420
Gross profit	65,876	35,487	177,289	81,639
Operating expenses
Research and development	12,499	5,217	32,292	11,863
Selling, general and administrative	56,104	23,080	135,899	58,353
Total operating expenses	68,603	28,297	168,191	70,216
(Loss) Income from operations	(2,727)	7,190	9,098	11,423
Other income (expense)
Interest income	27	208	130	409
Interest expense	(73)	(251)	(220)	(1,060)
Change in fair value of warrant liabilities	0	0	0	(3,317)
Other income (expense)	30	(651)	(4)	(651)
Total other expenses	(16)	(694)	(94)	(4,619)
(Loss) Income before income taxes	(2,743)	6,496	9,004	6,804
Provision for income taxes	61	0	271	0
Net (loss) income	(2,804)	6,496	8,733	6,804
Other comprehensive (loss) income
Foreign currency translation adjustments	(146)	0	(269)	0
Unrealized gain on available-for-sale securities	7	0	19	0
Total other comprehensive loss	(139)	0	(250)	0
Comprehensive (loss) income	$ (2,943)	$ 6,496	$ 8,483	$ 6,804
Net (loss) income per share
Basic	$ (0.06)	$ 0.13	$ 0.18	$ 0.26
Diluted	$ (0.06)	$ 0.12	$ 0.16	$ 0.14
Weighted average common shares used to compute net (loss) income per share
Basic	50,001,996	48,335,443	49,664,037	26,423,681
Diluted	50,001,996	55,355,846	55,511,061	49,940,409