Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Operating activities
Net loss	$ (20,557)	$ (35,144)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	1,701	714
Stock-based compensation	7,191	8,552
Non-cash operating lease expense	335	319
Accretion of discount on marketable debt securities	(2,924)	(1,867)
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	(8)	678
Accounts payable	1,812	(2,313)
Accrued expenses and other current liabilities	(2,951)	(11,147)
Operating lease liabilities	(594)	2,336
Financing lease liabilities	(62)
Deferred revenues	(7,660)
Net cash used in operating activities	(23,717)	(37,872)
Investing activities
Redemption of marketable debt securities	113,848	15,193
Purchase of marketable debt securities	(132,105)	(130,176)
Purchase of property and equipment	(237)	(6,665)
Net cash used in investing activities	(18,494)	(121,648)
Financing activities
Proceeds from issuance of common stock and pre-funded warrants in private placement, net of offering costs	46,872
Proceeds from issuance of common stock pursuant to ATM program, net of offering costs	10,590	6,122
Tax withholding payments related to net settlement of restricted common stock	(239)
Proceeds from the exercise of stock options	293	3
Proceeds from issuance of common stock under ESPP	105
Net cash provided by financing activities	57,621	6,125
Net increase (decrease) in cash, cash equivalents and restricted cash	15,410	(153,395)
Cash, cash equivalents and restricted cash at beginning of year	11,136	180,765
Cash, cash equivalents and restricted cash at end of period	26,546	27,370
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	25,074	25,898
Restricted cash	1,472	1,472
Total cash, cash equivalents and restricted cash shown in the statement of cash flows	$ 26,546	$ 27,370