CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Cash flows from operating activities:
Net income (loss)	$ (68,566)	$ 22,806
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization	2	367
Non-cash lease cost	1,043	969
Impairment of assets	0	5,306
Share-based compensation	7,793	7,932
Changes in operating assets and liabilities:
Collaboration receivable, current and non-current - related party	46,351	(95,742)
Other receivables	(1,540)	(461)
Prepaid expenses and other current assets	2,267	(799)
Other assets	282	(1)
Accounts payable	5,928	761
Accrued expenses and other current liabilities	11,167	(2,416)
Deferred revenue	(370)	(933)
Deferred revenue - related party	(26,255)	29,942
Other long-term liabilities	(87)	(9)
Operating lease liabilities	(1,246)	(1,104)
Income taxes payable	(213)	387
Net cash used in operating activities	(23,444)	(32,995)
Cash flows from financing activities:
Proceeds from the issuance of common stock, net of issuance costs	0	221
Net cash provided by financing activities	0	221
Net decrease in cash and cash equivalents	(23,444)	(32,774)
Cash and cash equivalents at beginning of period	76,333	109,107
Cash and cash equivalents at end of period	52,889	76,333
Supplemental disclosure of cash flow information
Cash paid for income taxes	$ 99	$ 2,212