Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Operating activities
Net loss	$ (35,931)	$ (60,557)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	3,562	899
Stock-based compensation	19,488	43,390
Change in fair value of liabilities	(562)	(5,282)
Warrant expense in connection with Merger	0	154
Amortization of debt issuance costs	0	144
Net amortization on securities	863	560
Benefit for deferred taxes	(258)	0
Non-cash operating lease cost	755	756
Non-cash other	58	399
Changes in operating assets and liabilities:
Inventory	(6,115)	(3,047)
Prepaid expenses and other current assets	(6,762)	(4,635)
Other long-term assets	(27)	(58)
Accounts payable	7,453	7,353
Accrued liabilities	150	5,583
Deferred revenue	(851)	(253)
Operating lease liabilities	(772)	(753)
Earn-out payable	(6,848)	0
Net cash used in operating activities	(25,797)	(15,347)
Investing activities
Purchases of investments	(89,146)	(187,521)
Maturities of investments	101,259	48,421
Proceeds from sales of investments	22,291	1,215
Investment in website and mobile application development and internal-use software	(2,397)	(1,833)
Purchases of property, equipment, and intangible assets	(276)	(122)
Deferred consideration paid for acquisitions	(459)	0
Acquisition of business, net of cash acquired	0	(748)
Net cash provided by (used in) investing activities	31,272	(140,588)
Financing activities
Pre-closing stock repurchase	0	(22,027)
Proceeds from issuance of common stock upon Merger	0	197,686
Proceeds from PIPE	0	75,000
Payments for transaction costs related to securities issuances	0	(12,851)
Proceeds from repayment of promissory notes associated with vested and unvested shares	0	1,193
Proceeds from exercise of Class A common stock warrants	0	808
Proceeds from exercise of vested and unvested stock options, net of repurchases and cancelations	1,470	254
Payments for taxes related to net share settlement of equity awards	(1,183)	(4,458)
Payments for earn-out consideration for acquisitions	(23,014)	0
Proceeds from employee stock purchase plan	553	0
Net cash (used in) provided by financing activities	(22,174)	235,605
Foreign currency effect on cash and cash equivalents	(52)	(19)
(Decrease) increase in cash, cash equivalents, and restricted cash	(16,751)	79,651
Cash, cash equivalents, and restricted cash at beginning of period	72,640	28,350
Cash, cash equivalents, and restricted cash at end of period	55,889	108,001
Reconciliation of cash, cash equivalents, and restricted cash
Cash and cash equivalents	55,033	107,145
Restricted cash	856	856
Total cash, cash equivalents, and restricted cash	55,889	108,001
Supplemental disclosures of cash flow information
Cash paid for taxes	528	227
Non-cash investing and financing activities
Recapitalization from redeemable convertible preferred stock pre-closing stock repurchase	0	125
Conversion of redeemable convertible preferred stock to common stock	0	249,837
Assumption of Merger warrants liability	0	51,814
Exercise of Private Placement Warrants and Public Warrants	0	20,872
Conversion of Series D preferred stock warrants to Class A common warrants	0	1,160
Vesting of early exercised stock options	76	106
Common stock issued, contingent consideration, and payables for acquisition of business	$ 0	$ 4,064