Annual report pursuant to Section 13 and 15(d)

Property and Equipment, net (Detail Textuals)

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Property and Equipment, net (Detail Textuals) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Property, Plant and Equipment [Line Items]    
Depreciation and amortization $ 2.8 $ 3.1
Impairment charge   0.6
Asset under construction    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross   $ 1.4