v3.21.2
CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Current assets:    
Cash $ 68,757 $ 84,222
Restricted cash 3,417 1,611
Short-term equity securities 1,211  
Trade and other receivables, net 518 263
Income tax receivable   1,526
Prepaid expenses and other current assets 969 443
Total current assets 74,872 88,065
Long-term restricted cash   531
Property and equipment, net 15 21
Operating lease right-of-use assets 240 359
Long-term royalty receivables 55,075 34,575
Long-term equity securities   1,693
Other assets 301 41
Total assets 130,503 125,285
Current liabilities:    
Accounts payable 598 456
Accrued and other liabilities 1,325 642
Contingent consideration under royalty purchase agreements 75 75
Operating lease liabilities 191 179
Unearned revenue recognized under units-of-revenue method 1,541 1,452
Contingent liabilities 1,410 1,410
Current portion of long-term debt   8,088
Preferred stock dividend accrual 1,368  
Total current liabilities 6,508 12,302
Unearned revenue recognized under units-of-revenue method - long-term 12,306 13,516
Long-term debt   12,764
Long-term operating lease liabilities 85 229
Other liabilities - long-term 20 50
Total liabilities 18,919 38,861
Commitments and Contingencies (Note 10)
Stockholders' equity:    
Common stock, $0.0075 par value, 277,333,332 shares authorized, 11,311,231 and 11,228,792 shares issued and outstanding at September 30, 2021 and December 31, 2020, respectively 85 84
Additional paid-in capital 1,306,582 1,267,377
Accumulated deficit (1,195,132) (1,181,086)
Total stockholders' equity 111,584 86,424
Total liabilities and stockholders' equity 130,503 125,285
8.625% Series A Cumulative, Perpetual Preferred Stock    
Stockholders' equity:    
Preferred Stock 49 49
8.375% Series B Cumulative, Perpetual Preferred Stock    
Stockholders' equity:    
Preferred Stock
Convertible Preferred Stock [Member]    
Stockholders' equity:    
Preferred Stock

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