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	$ (31,355)	$ (18,229)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation expense	45	28
Stock-based compensation expense	5,136	995
Accretion of discount on short-term investments	(940)	(566)
Amortization of right-of-use operating lease assets	173	137
Changes in operating assets and liabilities:
Receivable from related party	(546)	4,338
Unbilled receivable from related party	(651)	520
Prepaid expenses and other current assets	(50)	656
Deferred transaction costs	0	(1,163)
Other assets	(1,487)	12
Accounts payable, accrued expenses and operating lease liabilities	260	(1,715)
Deferred revenue - related party	(54)	(28)
Net cash used in operating activities	(29,469)	(15,015)
Cash flows from investing activities:
Capital expenditures	(49)	(35)
Purchases of short-term investments	(27,289)	(3,855)
Proceeds from maturities of short-term investments	23,000	43,885
Net cash (used in)/provided by investing activities	(4,338)	39,995
Cash flows from financing activities:
Proceeds from exercise of stock options	318	0
Proceeds from the private placement	229,998	0
Payment of issuance costs in connection with the private placement	(14,665)	0
Proceeds from issuance of promissory notes payable to related party	0	377
Repayment of promissory notes payable to related party	0	(377)
Net cash provided by financing activities	215,651	0
Increase in cash, cash equivalents and restricted cash	181,844	24,980
Cash, cash equivalents and restricted cash, beginning of period	132,391	15,425
Cash, cash equivalents and restricted cash, end of period	314,235	40,405
Supplemental Disclosure
Cash and cash equivalents	314,169	40,280
Restricted cash	66	125
Total cash, cash equivalents and restricted cash	$ 314,235	$ 40,405