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Commitments and Contingencies (Details Textual) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Commitments and Contingencies [Line Items]    
Litigation Settlement, Expense $ 100  
Estimated Litigation Liability 8,000  
Property, Plant and Equipment, Net, Total 5,898 $ 5,397
Liens Under Foreign Tax Authority [Member]    
Commitments and Contingencies [Line Items]    
Property, Plant and Equipment, Net, Total $ 400