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Debt - Schedule of Interest Expense (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Debt Instrument [Line Items]    
Interest expense $ 309 $ 429
Unsecured promissory note    
Debt Instrument [Line Items]    
Interest expense 4 0
Secured term note payable - related party    
Debt Instrument [Line Items]    
Interest expense 57 339
Secured promissory note - related party    
Debt Instrument [Line Items]    
Interest expense 224 56
Insurance and other notes payable    
Debt Instrument [Line Items]    
Interest expense $ 24 $ 34