Condensed Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Operating Activities
Net loss	$ (50,002)	$ (76,337)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation expense	935	843
Non-cash operating lease expense	1,557	1,376
Stock-based compensation expense	5,742	9,862
Change in fair value of warrant liability	(227)
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	1,614	(687)
Other assets	615	(1,244)
Accounts payable	(4,703)	(1,058)
Accrued expenses and other current liabilities	1,308	2,503
Operating lease liabilities	(1,718)	69
Net cash used in operating activities	(44,879)	(64,673)
Investing Activities
Purchase of property and equipment	0	(94)
Net cash used in investing activities	0	(94)
Financing Activities
Proceeds from issuances of common stock under at the market equity offering program	5,032	0
Proceeds from issuance of common stock, common warrants and pre-funded warrants from public offering	37,800	0
Payments of financing costs	(125)	0
Proceeds from stock option exercise and purchases under the employee stock purchase plan	117	1,186
Net cash provided by financing activities	42,824	1,186
Net decrease in cash, cash equivalents, and restricted cash	(2,055)	(63,581)
Cash, cash equivalents, and restricted cash at the beginning of the period	58,648	177,236
Cash, cash equivalents, and restricted cash at the end of the period	56,593	113,655
Non-cash financing and investing activities:
Acquisition of property and equipment in accounts payable and accrued liabilities	0	35
Financing costs included in accounts payable and accrued liabilities	619	0
Reconciliation of cash and cash equivalents, and restricted cash:
Cash and cash equivalents	56,224	113,286
Restricted cash	369	369
Cash, cash equivalents, and restricted cash at the end of the period	$ 56,593	$ 113,655