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Commitments and Contingencies - Schedule of Aggregate Future Minimum Lease Payments Under Operating Leases (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Commitments And Contingencies Disclosure [Abstract]    
2020 (remaining six months) $ 298  
2021 509  
2022 65  
Total 872  
Less effects of discounting (39)  
Lease liabilities recognized $ 833 $ 1,067