Condensed Consolidated Statement of Cash Flows - USD ($) $ in Thousands	3 Months Ended				9 Months Ended		90 Months Ended
	Sep. 30, 2026	Mar. 31, 2026	Sep. 30, 2025	Mar. 31, 2025	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026
Cash flows from operating activities:
Net loss	$ (42,309)	$ (32,588)	$ (25,579)	$ (25,473)	$ (108,996)	$ (77,872)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization					105	126
Stock-based compensation					25,156	7,555
Non-cash lease expense					416	156
Changes in operating assets and liabilities:
Other current assets and prepaid expenses					4,121	(45)
Accounts payable					315	(927)
Accrued expenses					1,869	4,875
Operating lease liabilities					(419)	(168)
Other liabilities					745	(225)
Net cash used in operating activities					(76,688)	(66,525)
Cash flows from investing activities:
Purchases of property and equipment					(355)	(150)
Net cash used in investing activities					(355)	(150)
Cash flows from financing activities:
Proceeds from exercise of stock options					321	0
Proceeds from shares issued in connection with the Company's Employee Stock Purchase Plan					86	123
Proceeds from exercise of February 2026 Common Warrants, net of issuance costs							$ 690,000
Net cash provided by financing activities					194,076	65,518
Effect of exchange rate changes on cash and cash equivalents					(553)	621
Net change in cash and cash equivalents					116,480	(536)
Cash and cash equivalents, beginning of period		$ 15,483		$ 35,668	15,483	35,668
Cash and cash equivalents, end of period	$ 131,963		$ 35,132		131,963	35,132	$ 131,963
Supplemental disclosure of noncash investing and financing activities:
Reclassification of SARs liability to equity					5,198	0
Operating lease right-of use asset obtained in exchange for lease obligation					345	0
Series B Warrants
Cash flows from financing activities:
Proceeds from the exercise of pre-funded warrants					1,377	0
February 2026 common warrants
Cash flows from financing activities:
Proceeds from the exercise of pre-funded warrants					5,029	0
May 2025 PIPE Transaction
Cash flows from financing activities:
Proceeds from offering, net of issuance costs					0	60,661
April 2025 PIPE Transaction
Cash flows from financing activities:
Proceeds from offering, net of issuance costs					0	4,734
2026 February, Private Placement
Cash flows from financing activities:
Proceeds from exercise of February 2026 Common Warrants, net of issuance costs					$ 187,263	$ 0