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Property, Plant and Equipment, Net (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Property, Plant and Equipment [Abstract]        
Depreciation expense $ 4,525 $ 3,535 $ 8,820 $ 6,672