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Income Taxes - Income (loss) From Continuing Operations Before Income Taxes (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Income Taxes    
U.S.-based operations $ (7,770) $ (9,979)
Non U.S.-based operations (1,051) 1,004
Loss from continuing operations before income taxes $ (8,821) $ (8,975)