Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Cash, Cash Equivalents and Restricted Cash (Details)

v3.20.1
Summary of Significant Accounting Policies - Cash, Cash Equivalents and Restricted Cash (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Accounting Policies [Abstract]      
Cash $ 276 $ 844 $ 308
Restricted cash 86 5,500 0
Total cash, cash equivalents, and restricted cash shown in the consolidated statement of cash flows $ 362 $ 6,344 $ 308