CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash flows from operating activities:
Net loss	$ (122,773)	$ (87,349)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	373	220
Accretion and amortization on investments, net	(4,893)	(4,963)
Amortization of debt issuance costs/debt discounts	1,492	487
Stock-based compensation for services by non-employees	107	211
Stock-based compensation for employees and directors	17,502	6,906
Amortization of right-of-use assets	331	306
Changes in assets and liabilities:
Inventory	(774)
Accounts receivable, net	(874)
Prepaid expenses, interest receivable and other assets	(1,309)	2,411
Current and noncurrent liabilities	(4,913)	5,805
Net cash used in operating activities	(115,731)	(75,966)
Cash flows from investing activities:
Purchases of property and equipment	(821)	(574)
Purchases of marketable securities	(226,333)	(355,718)
Proceeds from maturities of marketable securities	225,215	133,115
Net cash used in investing activities	(1,939)	(223,177)
Cash flows from financing activities:
Proceeds from issuances of common stock from equity plans	23,122	8,448
Proceeds from issuance of common stock from public offering and pre-funded warrant, net of paid issuance costs	140,729	213,337
Proceeds from exercise of warrants	414	77,602
Proceeds from employee stock purchase plan	366
Net cash provided by financing activities	164,631	299,387
Effect of exchange rates on cash, cash equivalents and restricted cash	(31)	(15)
Net increase in cash, cash equivalents and restricted cash	46,930	229
Cash, cash equivalents and restricted cash at the beginning of the period	71,138	57,209
Cash, cash equivalents and restricted cash at the end of the period	$ 118,068	$ 57,438