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Debt Financing and Revolving Credit Facilities (Fair Value of Warrant) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Debt Financing and Revolving Credit Facilities [Abstract]    
Warrant liability beginning $ 12,730  
Change in fair value 14,894 $ 3,657
Warrants issued 4,890  
Warrant liability Ending $ 32,514 $ 12,730