Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (29,836)	$ (8,431)
Adjustments to reconcile loss to net cash used in operating activities:
Depreciation and amortization	2	65
Accretion of investments	(2,189)	(2,745)
Stock-based compensation	10,366	9,605
Amortization of intangible asset	1,457	1,458
Changes in assets and liabilities:
Accounts receivable, net	3,149	9,872
Inventory	19,958	25,529
Prepaid and other current assets	(5,239)	(19,934)
Other long-term assets	78	73
Interest receivable	420	(1)
Deferred revenue		(4,850)
Accounts payable and other current liabilities	5,997	(26,394)
Other long-term liabilities	(16)	403
Net cash provided by (used in) operating activities	4,147	(15,350)
CASH FLOWS FROM INVESTING ACTIVITIES:
Maturities of securities	105,300	133,000
Purchases of securities	(80,826)	(99,586)
Net cash provided by investing activities	24,474	33,414
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common stock under employee stock purchase plan	57	122
Proceeds from exercise of stock options		10
Taxes paid related to stock-based awards	(1,839)	(1,524)
Net cash used in financing activities	(1,782)	(1,392)
NET INCREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH	26,839	16,672
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD	121,338	199,777
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD	148,177	216,449
Cash paid during the year for:
Income taxes	(147)	(669)
Supplemental disclosure of non-cash transactions:
Initial recognition of operating lease right-of-use asset	$ 856	$ 189