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Income Taxes ((Loss) Income from Continuing Operations Before Income Taxes) (Details) - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Income Taxes [Abstract]    
United States $ (6,934,000) $ (6,358,000)
Foreign (7,206,000) (13,036,000)
Loss before taxes $ (14,140,000) $ (19,394,000)