Quarterly report pursuant to Section 13 or 15(d)

Debt and Interest (Interest Expense) (Details)

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Debt and Interest (Interest Expense) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Debt Instrument [Line Items]          
Interest expense, interest $ 2,597 $ 2,166 $ 4,558 $ 4,046  
Amortization of fees 557 594 946 903  
Interest expense, Total 3,154 2,760 5,504 4,949  
Unamortized debt discount fees 10,439   10,439   $ 7,063
Letter of Credit [Member]          
Debt Instrument [Line Items]          
Interest expense, interest 11 14 26 23  
Amortization of fees 0 0 0 0  
Interest expense, Total 11 14 26 23  
Oaktree Note [Member]          
Debt Instrument [Line Items]          
Interest expense, interest 1,390 1,669 2,765 3,319  
Amortization of fees 375 324 731 633  
Interest expense, Total 1,765 1,993 3,496 3,952  
Partner Company Dividend Payable [Member]          
Debt Instrument [Line Items]          
Interest expense, interest 0 263 0 263  
Amortization of fees 0 0 0 0  
Interest expense, Total 0 263 0 263  
Partner Company Convertible Preferred Shares [Member]          
Debt Instrument [Line Items]          
Interest expense, interest 0 0 0 0  
Amortization of fees 0 270 0 270  
Interest expense, Total 0 270 0 270  
Partner company installment payments - licenses [Member]          
Debt Instrument [Line Items]          
Interest expense, interest 215 220 418 441  
Amortization of fees 0 0 0 0  
Interest expense, Total 215 220 418 441  
Partner Company Notes Payable [Member]          
Debt Instrument [Line Items]          
Interest expense, interest 981 0 1,349 0  
Amortization of fees 182 0 215 0  
Interest expense, Total $ 1,163 $ 0 $ 1,564 $ 0