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Debt - Components (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Debt    
Total debt $ 5,000  
Less: Current portion of long-term-debt (1,167) $ (667)
Total debt, net of current portion 3,833  
Debt financing costs, net of accretion (163)  
Accretion related to final payment 62  
Long-term debt, net 3,732 $ 4,201
Credit Facility    
Debt    
Total debt $ 5,000