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Commitments and Contingencies - Schedule of Aggregate Future Minimum Lease Payments Under Operating Leases (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Commitments And Contingencies Disclosure [Abstract]    
2020 (remaining three months) $ 197  
2021 740  
2022 266  
Total 1,203  
Less effects of discounting (50)  
Lease liabilities recognized $ 1,153 $ 1,067