Quarterly report pursuant to Section 13 or 15(d)

Property and Equipment, Net (Details Textual)

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Property and Equipment, Net (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Property and Equipment, Net (Textual)        
Depreciation expense $ 17 $ 7 $ 37 $ 53