CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Cash flows from operating activities
Net income (loss)	$ 7,195	$ (9,963)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	51	44
Accretion related to marketable securities	(625)	(375)
Stock-based compensation	2,507	1,457
Change in fair value of warrant liability	(27,141)	(1,816)
Loss (gain) from equity method investment	928	341
Changes in operating assets and liabilities:
Accounts receivable - related party	(11)	(9)
Prepaid and other current assets	1,081	(196)
Operating lease right-of-use assets	165	571
Other assets	6	(40)
Accounts payable	555	(312)
Accrued and other liabilities	1,288	334
Operating lease liability	(39)	(674)
Net cash used in operating activities	(14,040)	(10,638)
Net Cash Provided by (Used in) Investing Activities [Abstract]
Purchases of marketable securities	(47,183)	(30,922)
Maturities of marketable securities	31,274	13,411
Purchases of property and equipment	(149)
Net cash (used in) provided by investing activities	(16,058)	(17,511)
Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]
Proceeds from issuance of common stock, net (includes $1,794 in aggregate gross proceeds from related parties)		16,405
Proceeds from issuance of pre-funded warrants, net (includes $1,769 in aggregate gross proceeds from related parties)		5,031
Proceeds from issuance of common warrants (includes $1,472 in aggregate gross proceeds from related parties)		8,934
Proceeds from the exercise of common stock warrants (includes $4,960 in aggregate proceeds from related parties)	35,745
Proceeds from exercise of common stock options	304
Net cash provided by financing activities	36,049	30,370
Net increase in cash and cash equivalents	5,951	2,221
Cash and cash equivalents at beginning of the period	8,740	12,620
Cash and cash equivalents at end of the period	$ 14,691	$ 14,841