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Shareholders' Equity (Details Textual) - shares
Dec. 31, 2016
Dec. 31, 2015
Sep. 16, 2015
Preferred Stock, Shares Authorized 1,000,000 1,000,000  
Common Stock [Member]      
Common Stock, Shares Authorized 400,000,000    
Common Class A [Member]      
Common Stock, Shares Authorized 380,000,000 380,000,000  
Common Stock Outstanding Including Temporary Equity 50,000,000 50,000,000  
Temporary Equity, Shares Outstanding 47,702,674 47,646,408
Common Stock, Shares, Outstanding 2,297,326 2,353,592  
Common Class B [Member]      
Common Stock, Shares Authorized 20,000,000 20,000,000  
Common Stock, Shares, Outstanding 12,500,000 12,500,000