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Income Taxes (Schedule of Income before Income Tax, Domestic and Foreign) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Income Taxes [Abstract]      
Domestic $ (2,392) $ (2,583) $ (20,404)
Foreign (3,191) (1,503) (3,080)
Income/ (loss) before income tax expense / (benefit) $ (5,583) $ (4,086) $ (23,484)