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Leases - Additional Information (Details) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2020
Dec. 31, 2019
Jan. 01, 2019
Leases [Abstract]      
Right-of-use lease asset $ 63 $ 156 $ 400
Short-term lease liability $ 66 $ 166 200
Long-term lease liability     $ 200
Interest rate 8.00%    
Operating leases expense $ 100    
Operating leases expiration period 2020-10    
Option to extend additional lease term 20 months 15 days    
Operating lease, option to extend option to extend the lease for an additional 20.5 month period