Note 10 - Income Taxes	6 Months Ended
Jun. 30, 2020
Notes to Financial Statements
Income Tax Disclosure [Text Block]	Note 10 – Income Taxes The Company is subject to income tax in multiple jurisdictions and the use of estimates is required to determine the provision for income taxes. For the three months ended June 30, 2020 and 2019, the Company recorded an income tax provision of $2.5 million and $4.5 million, respectively. For the six months ended June 30, 2020 and 2019, the Company recorded an income tax provision of $6.4 million and $8.7 million, respectively. The income tax provision is based on the estimated annual effective tax rate for the year applied to pre-tax income. The effective income tax rate for the three months ended June 30, 2020 was 16.6 percent compared to 21.9 percent in the same period of the prior year. The effective tax rate decreased by 5.3 percent for the three months ended June 30, 2020 when compared to the same period in 2019 primarily due to an increase in tax benefits from the vesting of restricted stock and the exercise of stock options and an increase in the research and development tax credit. The effective income tax rate for the six months ended June 30, 2020 was 19.4 percent compared to 21.5 percent in the same period of the prior year. The effective tax rate decreased by 2.1 percent for the six months ended June 30, 2020 when compared to the same period in 2019 primarily due to an increase in tax benefits from the vesting of restricted stock and the exercise of stock options and an increase in the research and development tax credit. The effective income tax rate for the six months ended June 30, 2020 differs from the U.S. federal statutory rate of 21.0 percent due to various factors, including operating in multiple state and foreign jurisdictions and tax credits for which the Company qualifies. The Company had unrecognized tax benefits totaling $4.7 million as of June 30, 2020 and $4.6 million as of December 31, 2019, respectively, all of which, if recognized, would affect the Company’s effective tax rate. The Company recognizes interest and penalties related to income tax matters in income tax expense, and reports the liability in current or long-term income taxes payable as appropriate. The Coronavirus Aid, Relief, and Economic Security (CARES) Act was signed into law on March 27, 2020. The CARES Act is meant to infuse companies with various income and payroll tax cash benefits to ease the impact of the pandemic. A technical correction to the Tax Cuts and Jobs Act of 2017 was included in the CARES Act allowing qualified improvement property to claim bonus depreciation for respective assets placed in service in 2018 and 2019. The impact of the CARES Act to the Company was a $2.6 million reduction in our income taxes payable and a corresponding increase to our deferred tax liability. In addition, the Company has elected to defer deposits of the employer portion of the Social Security tax for the quarter ended June 30, 2020 through the quarter ended December 31, 2020. The Social Security taxes are being accrued for and will be paid beginning in 2021.

Note 10 - Income Taxes

6 Months Ended

Jun. 30, 2020

Note 10 – Income Taxes

The Company is subject to income tax in multiple jurisdictions and the use of estimates is required to determine the provision for income taxes. For the three months ended June 30, 2020 and 2019, the Company recorded an income tax provision of $2.5 million and $4.5 million, respectively. For the six months ended June 30, 2020 and 2019, the Company recorded an income tax provision of $6.4 million and $8.7 million, respectively. The income tax provision is based on the estimated annual effective tax rate for the year applied to pre-tax income. The effective income tax rate for the three months ended June 30, 2020 was 16.6 percent compared to 21.9 percent in the same period of the prior year. The effective tax rate decreased by 5.3 percent for the three months ended June 30, 2020 when compared to the same period in 2019 primarily due to an increase in tax benefits from the vesting of restricted stock and the exercise of stock options and an increase in the research and development tax credit. The effective income tax rate for the six months ended June 30, 2020 was 19.4 percent compared to 21.5 percent in the same period of the prior year. The effective tax rate decreased by 2.1 percent for the six months ended June 30, 2020 when compared to the same period in 2019 primarily due to an increase in tax benefits from the vesting of restricted stock and the exercise of stock options and an increase in the research and development tax credit.

The effective income tax rate for the six months ended June 30, 2020 differs from the U.S. federal statutory rate of 21.0 percent due to various factors, including operating in multiple state and foreign jurisdictions and tax credits for which the Company qualifies.

The Company had unrecognized tax benefits totaling $4.7 million as of June 30, 2020 and $4.6 million as of December 31, 2019, respectively, all of which, if recognized, would affect the Company’s effective tax rate. The Company recognizes interest and penalties related to income tax matters in income tax expense, and reports the liability in current or long-term income taxes payable as appropriate.

The Coronavirus Aid, Relief, and Economic Security (CARES) Act was signed into law on March 27, 2020. The CARES Act is meant to infuse companies with various income and payroll tax cash benefits to ease the impact of the pandemic. A technical correction to the Tax Cuts and Jobs Act of 2017 was included in the CARES Act allowing qualified improvement property to claim bonus depreciation for respective assets placed in service in 2018 and 2019. The impact of the CARES Act to the Company was a $2.6 million reduction in our income taxes payable and a corresponding increase to our deferred tax liability. In addition, the Company has elected to defer deposits of the employer portion of the Social Security tax for the quarter ended June 30, 2020 through the quarter ended December 31, 2020. The Social Security taxes are being accrued for and will be paid beginning in 2021.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

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