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Related Party Transactions - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Consulting Services | Former Chief Financial Officer        
Related Party Transaction [Line Items]        
Related party transaction expense $ 3 $ 34 $ 43 $ 34