Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
OPERATING ACTIVITIES
Net Income (Loss)	$ (57,606)	$ (64,857)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation	12,128	21,768
Depreciation and amortization	4,597	4,568
Loss on disposal of property and equipment	986	270
Net amortization of premium on available-for-sale securities	1,466	2,559
Provision for inventory excess and obsolescence	87	127
Non-cash operating lease expense	(1)	72
Loss on equity method investment	4,835	861
Changes in operating assets and liabilities:
Accounts receivable, net	1,072	266
Prepaid expenses and other assets	1,575	226
Inventory	(2,424)	(1,977)
Accounts payable	(200)	(327)
Deferred revenue	78	148
Accrued liabilities and other liabilities	(234)	1,644
Net cash used in operating activities	(33,641)	(34,652)
INVESTING ACTIVITIES
Purchases of property and equipment	(1,505)	(4,120)
Proceeds from disposal of property and equipment	646	0
Purchases of available-for-sale securities	(145,805)	(209,214)
Proceeds from maturities of available-for-sale securities	197,181	273,346
Purchase of equity security	(1,945)	(10,000)
Net cash provided by investing activities	48,572	50,012
FINANCING ACTIVITIES
Proceeds from exercise of Class A common stock options	46	0
Repurchases of Class A common stock under share repurchase program	(10,141)	(10,384)
Taxes paid related to net settlement of restricted stock units	(827)	0
Proceeds from issuance of Class A common stock in connection with employee stock purchase plan	211	147
Net cash used in financing activities	(10,711)	(10,237)
Net increase in cash, cash equivalents and restricted cash	4,220	5,123
Cash, cash equivalents and restricted cash, beginning of period	41,277	33,023
Cash, cash equivalents and restricted cash, end of period	45,497	38,146
SUPPLEMENTAL DISCLOSURE OF NON-CASH ACTIVITIES
Capitalized stock-based compensation related to internal-use software development	139	164
Property and equipment purchases included in accounts payable and accrued expenses	85	47
Inventory transferred to property and equipment	1,647	0
Property and equipment transferred to inventory	$ 0	$ 594