Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Operating activities
Net loss	$ (17,224)	$ (35,931)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	4,494	3,562
Stock-based compensation	31,012	19,488
Change in fair value of liabilities	468	(562)
Net (accretion) amortization on securities	(2,517)	863
Benefit for deferred taxes	(20)	(258)
Impairment of long-lived assets	429	0
Non-cash operating lease cost	914	755
Non-cash acquisition-related costs	1,066	58
Non-cash other	75	0
Changes in operating assets and liabilities:
Inventory	145	(6,115)
Prepaid expenses and other current assets	(4,756)	(6,762)
Other long-term assets	(32)	(27)
Accounts payable	5,438	7,453
Accrued liabilities	7,159	150
Deferred revenue	586	(851)
Operating lease liabilities	(928)	(772)
Earn-out payable	0	(6,848)
Net cash provided by (used in) operating activities	26,309	(25,797)
Investing activities
Purchases of investments	(65,376)	(89,146)
Maturities of investments	72,334	101,259
Proceeds from sales of investments	676	22,291
Investment in website and mobile application development and internal-use software	(4,062)	(2,397)
Purchases of property, equipment, and intangible assets	(5,312)	(276)
Deferred consideration paid for acquisitions	0	(459)
Net cash (used in) provided by investing activities	(1,740)	31,272
Financing activities
Proceeds from exercise of vested stock options	560	1,470
Payments for taxes related to net share settlement of equity awards	(7,411)	(1,183)
Proceeds from employee stock purchase plan	898	553
Payments for earn-out consideration for acquisitions	0	(23,014)
Net cash used in financing activities	(5,953)	(22,174)
Foreign currency effect on cash and cash equivalents	29	(52)
Increase (decrease) in cash, cash equivalents, and restricted cash	18,645	(16,751)
Cash, cash equivalents, and restricted cash at beginning of period	47,628	72,640
Cash, cash equivalents, and restricted cash at end of period	66,273	55,889
Reconciliation of cash, cash equivalents, and restricted cash
Cash and cash equivalents	65,417	55,033
Restricted cash	856	856
Total cash, cash equivalents, and restricted cash	66,273	55,889
Supplemental disclosures of cash flow information
Cash paid for taxes	626	528
Non-cash investing and financing activities
Purchase of property and equipment included in accounts payable	466	0
Right-of-use asset obtained in exchange for lease liability	591	0
Vesting of early exercised stock options	$ 0	$ 76