Income Taxes	6 Months Ended
Jun. 30, 2019
Income Taxes
Income Taxes	11 — Income Taxes For the three and six months ended June 30, 2019, we recorded a provision for income tax expense of $364,987 and $125,841, respectively. Our effective tax rate was 14.9 percent and 3.1 percent and differed from the U.S. Federal statutory rate primarily due to discrete items related to tax benefits associated with stock-based compensation and the foreign derived intangible income deduction, partially offset by U.S. state tax expense. For the three and six months ended June 30, 2018, we recorded a provision for income tax expense of $348,377 and $634,575, respectively. Our effective tax rate was 20.5 percent and 22.4 percent and differed from the U.S. Federal statutory rate primarily due to the foreign derived intangible income deduction and research and development credits, partially offset by U.S. state tax expense. As of June 30, 2019 and December 31, 2018, we had not identified or accrued for any uncertain tax positions. We are currently unaware of any uncertain tax positions that could result in significant payments, accruals or other material deviations in this estimate over the next 12 months. We believe that our tax positions comply in all material respects with applicable tax law. However, tax law is subject to interpretation, and interpretations by taxing authorities could be different from ours, which could result in the imposition of additional taxes and penalties. We file tax returns in the United States Federal jurisdiction and many U.S. state jurisdictions. The Company is subject to income tax examinations for our United States Federal and certain U.S. state income taxes for 2015 and subsequent years and various other U.S. state income taxes for 2014 and subsequent years.

11 — Income Taxes

For the three and six months ended June 30, 2019, we recorded a provision for income tax expense of $364,987 and $125,841, respectively. Our effective tax rate was 14.9 percent and 3.1 percent and differed from the U.S. Federal statutory rate primarily due to discrete items related to tax benefits associated with stock-based compensation and the foreign derived intangible income deduction, partially offset by U.S. state tax expense.

For the three and six months ended June 30, 2018, we recorded a provision for income tax expense of $348,377 and $634,575, respectively. Our effective tax rate was 20.5 percent and 22.4 percent and differed from the U.S. Federal statutory rate primarily due to the foreign derived intangible income deduction and research and development credits, partially offset by U.S. state tax expense.

As of June 30, 2019 and December 31, 2018, we had not identified or accrued for any uncertain tax positions. We are currently unaware of any uncertain tax positions that could result in significant payments, accruals or other material deviations in this estimate over the next 12 months. We believe that our tax positions comply in all material respects with applicable tax law. However, tax law is subject to interpretation, and interpretations by taxing authorities could be different from ours, which could result in the imposition of additional taxes and penalties.

We file tax returns in the United States Federal jurisdiction and many U.S. state jurisdictions. The Company is subject to income tax examinations for our United States Federal and certain U.S. state income taxes for 2015 and subsequent years and various other U.S. state income taxes for 2014 and subsequent years.