Quarterly report pursuant to Section 13 or 15(d)

Supplementary Information For Statement of Cash Flows (Details)

v3.10.0.1
Supplementary Information For Statement of Cash Flows (Details) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Jun. 30, 2017
Dec. 31, 2015
Supplementary Information For Statement of Cash Flows        
Cash and cash equivalents $ 7,530 $ 3,879 $ 7,320  
Restricted cash 7,459 7,558 7,557  
Total $ 14,989 $ 11,437 $ 14,877 $ 9,109