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Debt - Schedule of Debt (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Debt Disclosure [Abstract]    
Unsecured promissory note $ 1,080 $ 0
Secured term note payable - related party 1,077 2,077
Secured promissory note - related party 5,000 5,000
Insurance and other notes payable 744 558
Less: amounts due within one year (3,928) (1,558)
Total long-term debt $ 3,973 $ 6,077