CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 955	$ 2,548
Restricted cash	169,388	0
Prepaid expenses and other current assets	1,563	2,064
Assets held for sale, current	0	15,597
Total current assets	171,906	20,209
Property and equipment, net	534	704
Operating lease right-of-use assets	344	370
Equity investments	96,768	96,768
Other assets	182	207
Assets held for sale, noncurrent	0	113,550
Total assets	269,734	231,808
Current liabilities:
Accounts payable	3,739	6,889
Accrued expenses	9,513	8,232
Due to related party	1,533	948
Lease liabilities, current	188	183
Income taxes payable	18,662	0
Debt, current	111,891	0
Liabilities held for sale, current	0	10,579
Total current liabilities	145,526	26,831
Debt, noncurrent	37,268	146,524
Lease liabilities, noncurrent	560	610
Other liabilities, noncurrent	4,595	76
Liabilities held for sale, noncurrent	0	2,663
Total liabilities	187,949	176,704
Commitments and contingencies (Note 14)
Stockholders’ equity:
Preferred stock, $0.0001 par value, 1,000,000 shares authorized; none issued or outstanding at March 31, 2024 and December 31, 2023, respectively.	0	0
Common stock, $0.0001 par value, 300,000 shares authorized, 18,981 and 18,841 shares issued, 18,811 and 18,671 shares outstanding as of March 31, 2024 and December 31, December 31, 2023, respectively	2	2
Additional paid-in capital	697,410	696,150
Treasury stock, at cost	(17,000)	(17,000)
Accumulated deficit	(598,627)	(624,048)
Total stockholders’ equity	81,785	55,104
Total liabilities and stockholders’ equity	$ 269,734	$ 231,808