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Income Taxes (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Income (loss) before income tax:    
Loss from continuing operations before income taxes (As Restated) $ (16,933)
Foregin    
Income tax expense (benefit)
Israel Tax Authority [Member] | Foreign Tax Authority [Member]    
Income (loss) before income tax:    
Foregin income (loss) before income tax (453)
Foregin    
Current
Deferred
Internal Revenue Service (IRS) [Member] | Federal Tax Authority [Member]    
Income (loss) before income tax:    
Domestic income (loss) before income tax (16,261)
Her Majesty's Revenue and Customs (HMRC) [Member] | Foreign Tax Authority [Member]    
Income (loss) before income tax:    
Foregin income (loss) before income tax $ (219)