XML 47 R34.htm IDEA: XBRL DOCUMENT v3.7.0.1
Basis of Preparation (Details) - USD ($)
Mar. 31, 2017
Dec. 31, 2016
Restricted Cash and Cash Equivalents Items [Line Items]    
Restricted Cash and Cash Equivalents $ 6,436,000  
Cash and Cash Equivalents [Member]    
Restricted Cash and Cash Equivalents Items [Line Items]    
Restricted Cash and Cash Equivalents   $ 990,000