Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Operating activities
Net loss	$ (18,331)	$ (12,433)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	520	421
Stock-based compensation expense	1,472	861
Change in fair value of derivative tranche liability	6,188	0
Non-cash lease expense	34	475
Non-cash interest expense	1	111
Change in operating assets and liabilities:
Prepaid expenses and other current assets	974	(7)
Accounts payable	592	175
Accrued expenses and other liabilities	(1,369)	(2,786)
Deferred revenue	(1,210)	(385)
Operating lease liabilities	148	(718)
Net cash used in operating activities	(10,981)	(14,286)
Investing activities
Purchases of property and equipment	0	(279)
Net cash used in investing activities	0	(279)
Financing activities
Proceeds from exercise of stock options and issuance of common stock under employee stock purchase plan	57	0
Principal payments on finance leases	0	(36)
Principal payments on financing obligation	0	(115)
Net cash provided by (used in) financing activities	57	(151)
Net change in cash, cash equivalents, and restricted cash	(10,924)	(14,716)
Cash, cash equivalents and restricted cash at beginning of period	111,757	65,663
Cash, cash equivalents and restricted cash at end of period	100,833	50,947
Supplemental disclosures of cash flow information:
Finance lease right-of-use asset converted to fixed asset	0	70
Purchase of property and equipment in accounts payable and accrued expenses	$ 102	$ 0