Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.3
Summary of Significant Accounting Policies - Cash and Cash Equivalents (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Sep. 30, 2018
Dec. 31, 2017
Cash and Cash Equivalents [Abstract]        
Cash and cash equivalents $ 2,815 $ 3,631 $ 3,005  
Restricted cash 3,011 1,212 817  
Total cash and cash equivalents and restricted cash $ 5,826 $ 4,843 $ 3,822 $ 7,114