Condensed Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Cash flows from operating activities
Net loss	$ (102,630)	$ (67,354)
Adjustments to reconcile net loss to net cash used in operating activities
Stock-based compensation expense	11,944	12,048
Vesting of common stock warrants in return for services		44
Change in fair value of derivative liability	(76)	13
Depreciation and amortization	2,217	2,367
Amortization of right-of-use assets	1,425	851
Net accretion of discount on marketable securities	(2,433)	(3,092)
Changes in operating assets and liabilities
Prepaid expenses and other current assets	(7)	(2,330)
Other assets	(5,129)	(1,636)
Accounts payable	4,314	(83)
Accrued and other liabilities	798	785
Deferred revenue	(29)	72
Operating lease liabilities	(1,529)	(1,016)
Net cash used in operating activities	(91,135)	(59,331)
Cash flows from investing activities
Purchase of marketable securities	(249,480)	(374,084)
Maturities of marketable securities	268,273	38,346
Acquisition of property and equipment	(697)	(1,059)
Net cash provided by (used in) investing activities	18,096	(336,797)
Cash flows from financing activities
Issuance of common stock upon exercise of stock options and warrants	2	3,963
Issuance of common stock - 2020 ESPP	860	707
Net cash provided by financing activities	862	336,081
Net decrease in cash and cash equivalents	(72,177)	(60,047)
Cash and cash equivalents, beginning of period	149,336	249,108	$ 249,108
Cash and cash equivalents, end of period	$ 77,159	189,061	$ 149,336
Supplemental disclosures of noncash investing and financing information
Purchases of property and equipment in accounts payable and accrued and other liabilities		177
Public offering
Cash flows from financing activities
Issuance of common stock under the offering program, net of issuance costs		316,148
ATM Offering Program
Cash flows from financing activities
Issuance of common stock under the offering program, net of issuance costs		$ 15,263