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Commitments and Contingencies - Schedule of Future Minimum Lease Payments Related to Non-cancellable Operating Lease Commitments (Details) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2021
Dec. 31, 2020
Operating Leases Future Minimum Payments Due [Abstract]    
Operating lease cost $ 5  
Operating lease - operating cash flows $ 31  
Weighted average remaining lease term 1 year  
Weighted average discount rate 7.20%  
2021 (remaining six months) $ 32  
2022 32  
Total future minimum lease payments 64  
Less imputed interest (2)  
Total liability 62  
Current operating lease liability 62 $ 59
Non-current operating lease liability   $ 32
Total $ 62