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Note 15 - Income Taxes	6 Months Ended
	Jun. 30, 2019
Notes to Financial Statements
Income Tax Disclosure [Text Block]	15. Income Taxes The effective income tax rates for the six months ended June 30, 2019 and 2018 were 23.9% and 25.3%, respectively. The decrease in the effective income tax rate in 2019 was primarily due to the mix of taxable income in the jurisdictions where we pay tax and additional tax deductions related to stock compensation.

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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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-URI http://asc.fasb.org/topic&trid=2144680

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