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Income Tax (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Dec. 31, 2013
Income Tax (Textual)        
PRC statutory rate 15.00%      
Tax Expiration Dec. 31, 2017      
Tax liability       $ 3,200
Income taxes paid $ 1,853 $ 2,851    
Non-U.S. subsidiaries [Member]        
Income Tax (Textual)        
U.S. deferred income taxes $ 84,400      
Minimum [Member]        
Income Tax (Textual)        
Effective income tax reduction, Percent 9.00%      
Maximum [Member]        
Income Tax (Textual)        
Effective income tax reduction, Percent 15.00%      
PRC [Member]        
Income Tax (Textual)        
PRC statutory rate 25.00% 25.00%    
Tax liability $ 3,200      
Income taxes paid     $ 3,200  
Income tax rate for dividends distribution 10.00%      
HK [ Member]        
Income Tax (Textual)        
PRC statutory rate 25.00%