Annual report pursuant to Section 13 and 15(d)

Basis of Presentation and Significant Accounting Policies - Schedule of Reconciliation of Cash And Restricted Cash (Details)

v3.20.4
Basis of Presentation and Significant Accounting Policies - Schedule of Reconciliation of Cash And Restricted Cash (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Accounting Policies [Abstract]      
Cash $ 33,010 $ 7,418  
Restricted cash 50 50  
Total cash and restricted cash shown in the statements of cash flows $ 33,060 $ 7,468 $ 2,752