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Income Taxes
9 Months Ended
Sep. 30, 2015
Income Taxes

17. Income TaxesIncome tax expense was $958 for the nine months ended September 30, 2015, as compared to an expense of $856 for the nine months ended September 30, 2014. The effective tax rate was 19% in 2015 and 21% in 2014. Income tax expense was $1,643 for the three months ended September 30, 2015. There was no tax expense for the three months ended September 30, 2014. The tax rate is based on management’s estimate of the full year income tax rate and is subject to ongoing review and revision.