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Property and Equipment, Net (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Property, Plant and Equipment [Abstract]        
Depreciation expense $ 800 $ 700 $ 1,566 $ 1,387