Condensed Consolidated Statement of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Cash flows from operating activities:
Net loss	$ (52,293)	$ (50,964)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	86	57
Unrealized foreign currency gain	0	(147)
Stock-based compensation	3,941	4,632
Non-cash lease expense	108	342
Change in fair value of tranche rights	0	4,796
Fees expensed as part of January 2024 Financing	0	1,690
Changes in operating assets and liabilities:
Other current assets and prepaid expenses	(429)	375
Accounts payable	(896)	2,977
Accrued expenses	3,447	(4,420)
Other liabilities	(231)	4
Operating lease liability	(118)	(350)
Net cash used in operating activities	(46,385)	(41,008)
Cash flows from investing activities:
Purchases of property and equipment	(83)	(211)
Net cash used in investing activities	(83)	(211)
Cash flows from financing activities:
Proceeds from public offering of common stock through At The Market Sales Agreement, net	0	191
Proceeds from shares issued in connection with the Company's employee stock purchase plan	123	0
Net cash provided by financing activities	65,518	74,464
Effect of exchange rate changes on cash and cash equivalents	592	(221)
Net change in cash and cash equivalents	19,642	33,024
Cash and cash equivalents, beginning of period	35,668	46,674
Cash and cash equivalents, end of period	55,310	79,698
Supplemental disclosure of noncash investing and financing activities:
Conversion of tranche rights liability to equity upon increase in authorized shares	0	28,396
January 2024 PIPE Transaction
Cash flows from financing activities:
Proceeds from offering, net of issuance costs	0	74,273
May 2025 PIPE Transaction
Cash flows from financing activities:
Proceeds from offering, net of issuance costs	60,661	0
April 2025 PIPE Transaction
Cash flows from financing activities:
Proceeds from offering, net of issuance costs	$ 4,734	$ 0