CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current Assets:
Cash and cash equivalents	$ 25,028	$ 7,703
Restricted cash	25	500
Marketable securities	0	37,955
Prepaid expenses and other current assets	1,297	577
Total current assets	26,350	46,735
Property and equipment, net	2,101	808
Ownership interests and advances	77,129	95,585
Other assets	1,997	2,609
Total Assets	107,577	145,737
Current Liabilities:
Accounts payable	39	165
Accrued compensation and benefits	1,364	3,433
Accrued expenses and other current liabilities	627	2,182
Credit facility - current	0	22,100
Credit facility repayment feature	0	5,060
Lease liability - current	399
Total current liabilities	2,429	32,940
Other long-term liabilities	1,027	2,804
Lease liability - non-current	2,380
Credit facility - non-current	0	43,014
Total Liabilities	5,836	78,758
Commitments and contingencies (Note 12)
Equity:
Preferred stock, $0.10 par value; 1,000 shares authorized	0	0
Common stock, $0.10 par value; 83,333 shares authorized; 21,573 issued at December 31, 2019 and 2018, respectively	2,157	2,157
Additional paid-in capital	810,856	810,928
Treasury stock, at cost; 930 and 914 shares at December 31, 2019 and 2018, respectively	(14,024)	(15,001)
Accumulated deficit	(697,223)	(731,105)
Accumulated other comprehensive loss	(25)	0
Total Equity	101,741	66,979
Total Liabilities and Equity	$ 107,577	$ 145,737