Unaudited Condensed Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Cash flows from operating activities
Net loss	$ (49,823)	$ (54,892)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	354	697
Change in fair value of warrant liability	536	0
Stock-based compensation	4,314	6,990
Changes in operating assets and liabilities:
Prepaid expenses and other assets	673	1,038
Accounts payable and accrued expenses	3,551	(10,284)
Accounts payable and accrued expenses - related parties	0	1,775
Right-of-use assets and lease liabilities, net	106	(477)
Net cash used in operating activities	(40,289)	(55,153)
Cash flows from financing activities
Payment of financing costs	(444)	0
Proceeds from issuance of common stock under Employee Stock Purchase Plan	47	244
Payments for taxes related to net settlement of equity awards	(40)	(46)
Net cash provided by (used in) financing activities	(437)	198
Net decrease in cash and cash equivalents	(40,726)	(54,955)
Cash and cash equivalents, beginning of period	49,046	111,471
Cash and cash equivalents, end of period	8,320	56,516
Supplemental disclosure of non-cash investing and financing activities
Increase in right-of-use assets and operating lease liabilities resulting from contract modification	$ 5,999	$ 0