Quarterly report pursuant to Section 13 or 15(d)

Supplementary Information For Statement of Cash Flows (Details)

v3.8.0.1
Supplementary Information For Statement of Cash Flows (Details) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Mar. 31, 2017
Dec. 31, 2015
Supplementary Information For Statement of Cash Flows        
Cash and cash equivalents $ 9,169 $ 3,879 $ 8,393  
Restricted cash 7,458 7,558 7,557  
Total $ 16,627 $ 11,437 $ 15,950 $ 9,109