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Leases - Schedule of Future Minimum Rental Payments (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Leases [Abstract]    
2020 (remaining nine months) $ 235  
2021 59  
Total 294  
Less: imputed interest (19)  
Total lease liability 275  
Current operating lease liability $ 275 $ 292