Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating activities
Net loss	$ (10,067)	$ (16,252)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	2,117	1,741
Stock-based compensation	14,167	8,856
Change in fair value of liabilities	295	(441)
Net (accretion) amortization on securities	(1,041)	971
Provision (benefit) for deferred taxes	49	(112)
Impairment of long-lived assets	429	0
Non-cash operating lease cost	448	377
Non-cash acquisition-related costs	566	69
Non-cash other	75	(163)
Changes in operating assets and liabilities:
Inventory	865	1,415
Prepaid expenses and other current assets	(4,984)	(7,677)
Other long-term assets	5	(30)
Accounts payable	3,955	4,266
Accrued liabilities	1,673	(3,148)
Deferred revenue	1,394	(2,043)
Operating lease liabilities	(463)	(384)
Earn-out payable	0	(6,848)
Net cash provided by (used in) operating activities	9,483	(19,403)
Investing activities
Purchases of investments	(40,687)	(84,881)
Maturities of investments	39,084	82,340
Proceeds from sales of investments	0	22,291
Investment in website and mobile application development and internal-use software	(1,875)	(1,197)
Purchases of property, equipment, and intangible assets	(635)	(100)
Net cash (used in) provided by investing activities	(4,113)	18,453
Financing activities
Proceeds from exercise of vested stock options	245	891
Payments for taxes related to net share settlement of equity awards	(3,657)	(404)
Payments for earn-out consideration for acquisitions	0	(23,014)
Net cash used in financing activities	(3,412)	(22,527)
Foreign currency effect on cash and cash equivalents	15	(23)
Increase (decrease) in cash, cash equivalents, and restricted cash	1,973	(23,500)
Cash, cash equivalents, and restricted cash at beginning of period	47,628	72,640
Cash, cash equivalents, and restricted cash at end of period	49,601	49,140
Reconciliation of cash, cash equivalents, and restricted cash
Cash and cash equivalents	48,745	48,284
Restricted cash	856	856
Total cash, cash equivalents, and restricted cash	49,601	49,140
Supplemental disclosures of cash flow information
Cash paid for taxes	286	36
Non-cash investing and financing activities
Purchase of property and equipment included in accounts payable	1,290	0
Vesting of early exercised stock options	$ 0	$ 38