Annual report pursuant to Section 13 and 15(d)

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

v3.19.1
Summary of Significant Accounting Policies (Cash and Cash Equivalents) (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Cash and cash equivalents $ 3,631 $ 5,109    
Restricted cash 1,212 2,005    
Total cash and cash equivalents and restricted cash $ 4,843 $ 7,114 $ 20,612 $ 9,632