CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Current Assets:
Cash and cash equivalents	$ 8,289	$ 18,257
Subscription receivable	635	0
Prepaid expenses and other current assets	1,077	3,372
Total current assets	10,001	21,629
Property and equipment, net	0	71
Acquired intangible asset	0	2,258
Goodwill	0	881
Right-of-use lease assets	0	1,212
Other assets	100	90
Total Assets	10,101	26,141
Current Liabilities:
Accounts payable	1,275	1,375
Accrued expenses	391	3,449
Lease liabilities	0	133
Total current liabilities	1,666	4,957
Royalty purchase liability	151,049	151,049
Lease liabilities, net of current portion	0	1,117
Warrant liability	1,055	0
Deferred tax liability	0	203
Total liabilities	153,770	157,326
Commitments and contingencies (Note 10)
Stockholders’ Equity:
Common stock, $0.001 par value: 200,000,000 shares authorized; 75,462,390 and 54,392,170 shares issued and outstanding at December 31, 2024 and 2023, respectively	75	54
Additional paid-in capital	308,247	306,167
Accumulated deficit	(456,363)	(437,406)
Total stockholders' deficit	(148,041)	(131,185)
Total liabilities, redeemable convertible preferred stock and stockholders' deficit	10,101	26,141
Series B Redeemable Convertible Preferred Stock [Member]
Current Liabilities:
Series B convertible preferred stock, $0.001 par value: 10,000,000 shares authorized;119,318 and 0 shares issued and outstanding at December 31, 2024 and 2023, respectively	$ 4,372	$ 0