Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Operating activities
Net loss	$ (43,055)	$ (22,001)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization expense	2,790	2,344
Inventory step-up amortization		275
Credit loss expense on accounts receivable	581	20
Reduction in the carrying amount of right-of-use assets	925	246
Stock-based compensation expense	9,013	7,036
Non-cash interest expense		43
Loss on disposal of fixed assets	6
Changes in operating assets and liabilities:
Accounts receivable	3,479	1,740
Prepaid expenses and other assets	930	(2,952)
Inventory	180	(6,793)
Other non-current assets	2	(20)
Accounts payable	(3,220)	40
Accrued compensation and benefits, other accrued expenses and other current liabilities	(4,387)	(3,925)
Contract acquisition costs	30	(72)
Operating lease liabilities	(3,128)	(590)
Other non-current liabilities	(9)	(120)
Deferred revenue	6,228	891
Net cash used in operating activities	(29,635)	(23,838)
Investing activities
Purchases of property and equipment	(6,454)	(7,339)
Proceeds from grant on assets purchased	520	5,210
Net cash used in investing activities	(5,934)	(2,129)
Financing activities
Proceeds from stock options exercised	596	5,469
Sale of common stock in underwritten public offering, net		269,718
Proceeds from ESPP purchase	594	519
Net cash provided by financing activities	1,190	275,706
Net (decrease) increase in cash, cash equivalents and restricted cash	(34,379)	249,739
Effect of foreign currency exchange rate on cash	(776)	(143)
Cash, restricted cash, and cash equivalents at beginning of period	399,042	182,584
Cash, restricted cash, and cash equivalents at end of period	$ 363,887	$ 432,180