STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net loss	$ (25,011)	$ (23,945)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	261	253
Stock-based compensation expense	4,958	3,614
Accretion of discount on investments, net	(2,227)	(861)
Changes in operating assets and liabilities:
Prepaid expenses and other assets	(2,409)	1,103
Accounts payable and accrued other liabilities	(5,758)	(792)
Net cash used in operating activities	(30,186)	(20,628)
Cash flows from investing activities:
Acquisitions of property and equipment	(218)	(310)
Purchases of investments	(114,395)	(43,387)
Maturities of investments	52,745	56,475
Net cash provided by (used in) investing activities	(61,868)	12,778
Cash flows from financing activities:
Issuance costs associated with financings	(168)	0
Proceeds from issuance of common stock	125,000	0
Proceeds from stock option exercises	198	0
Net cash provided by financing activities	125,030	0
Net decrease in cash, cash equivalents and restricted cash	32,976	(7,850)
Cash, cash equivalents and restricted cash at beginning of period	23,875	67,308
Cash, cash equivalents and restricted cash at end of period	56,851	59,458
Cash and cash equivalents	56,360	58,990
Restricted cash included in other assets	491	468
Total cash, cash equivalents and restricted cash	$ 56,851	$ 59,458