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Summary of Significant Accounting Policies - Recent Accounting Pronouncements (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Jan. 01, 2019
Recent Accounting Pronouncements    
Lease liability $ 172  
ASU 2016-02 | Adjustment    
Recent Accounting Pronouncements    
Right of use and other assets   $ 300
Lease liability   $ 300