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Note 10 - Income Taxes	9 Months Ended
	Sep. 30, 2017
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 September 30, 2017 and 2016, the Company recorded an income tax provision of $6.4 million and $5.6 million, respectively. For the nine months ended September 30, 2017 and 2016, the Company recorded an income tax provision of $17.7 million and $15.9 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 September 30, 2017 was 32.8 percent compared to 31.8 percent in the same period of the prior year. The effective income tax rate for the nine months ended September 30, 2017 was 32.1 percent compared to 32.4 percent in the same period of the prior year. The effective income ta x rate for the three and nine months ended September 30, 2017 differs from the U.S. federal statutory rate of 35.0 percent due primarily to the mix of income earned in domestic and foreign tax jurisdictions and deductions for which the Company qualifies. The Company had reserves against unrecog nized tax benefits totaling $4.0 million and $3.8 million at September 30, 2017 and December 31, 2016, 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.

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- 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-URI http://asc.fasb.org/topic&trid=2144680

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