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Commitments and Contingencies (Details Textual) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2017
Dec. 31, 2016
Commitments and Contingencies [Line Items]    
Litigation Settlement, Expense $ 300  
Estimated Litigation Liability 7,000  
Property, Plant and Equipment, Net, Total $ 7,262 $ 5,397
Interest Rate Description, Litigation The payment ordered by the Philippine courts accrued legal interest at the rate of 12% per annum from August 13, 2008 to June 30, 2013, and has thereafter accrued and continues to accrue legal interest at the rate of 6% per annum.  
Liens Under Foreign Tax Authority [Member]    
Commitments and Contingencies [Line Items]    
Property, Plant and Equipment, Net, Total $ 400