CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Cash flows from operating activities:
Net loss	$ (58,241)	$ (76,404)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	1,644	1,900
Non-cash interest (income) expense		157
Stock-based compensation expense	6,434	7,382
Loss on disposal of property and equipment	3	3
Changes in operating assets and liabilities:
Prepaid and other assets	(1,520)	688
Operating lease right-of-use asset	539	460
Accounts payable	1,526	(2,063)
Accrued expenses and other liabilities	(496)	175
Deferred revenue	32,780
Operating lease liability	(1,047)	(918)
Net cash used in operating activities	(18,378)	(68,620)
Cash flows from investing activities:
Purchases of property and equipment	(36)	(486)
Net cash used in investing activities	(36)	(486)
Cash flows from financing activities:
Repayments of debt principal	(3,333)	(6,667)
Payments of finance lease	(49)	(85)
Proceeds from issuance of common stock under employee stock purchase plan	68	194
Proceeds from exercise of stock options	5	8
Proceeds from issuance of common stock in connection with at-the-market offering	6,825
Net cash provided by (used in) financing activities	29,196	(6,550)
Increase (decrease) in cash, cash equivalents and restricted cash	10,782	(75,656)
Cash, cash equivalents and restricted cash, beginning of period	46,291	121,947
Cash, cash equivalents and restricted cash, end of period	57,073	46,291
Supplemental cash flow disclosure:
Cash paid for interest	62	573
Supplemental disclosure of non-cash activities:
Transfer of finance lease asset to property and equipment	85
Reconciliation to amounts within the consolidated balance sheets:
Cash and cash equivalents	55,291	44,704
Restricted cash	1,782	1,587
Cash, cash equivalents and restricted cash, end of period	57,073	$ 46,291
Gilead Stock Purchase Agreement
Cash flows from financing activities:
Proceeds from issuance of common stock and prefunded warrants in connection with the stock purchase agreement/private placement, net of issuance costs	15,772
Private Placement
Cash flows from financing activities:
Proceeds from issuance of common stock and prefunded warrants in connection with the stock purchase agreement/private placement, net of issuance costs	$ 9,908