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Income Taxes (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Income Taxes [Abstract]    
Tax provisions $ 431 $ (1,317)
Pretax losses $ (1,991) $ (4,149)
Effective income tax rate, Percent (21.60%) 31.70%