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Property and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Property, Plant and Equipment [Abstract]    
Computer hardware and software $ 10 $ 10
Crypto-currency mining machines 3,685 708
Property and equipment, gross 3,695 718
Less: Accumulated depreciation (579) (116)
Property and equipment, net $ 3,116 $ 602