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Note 8 - Income Taxes	6 Months Ended
	Jun. 30, 2017
Notes to Financial Statements
Income Tax Disclosure [Text Block]	8 – Income Taxes The Company had unrecognized income tax benefits totaling $2.4 million as a component of accrued liabilities at June 30, 2017 and December 31, 2016, the total of which, if recognized, would impact the Company’s effective tax rate. An unfavorable settlement may require a charge to income tax expense and a favorable resolution would be recognized as a reduction to income tax expense. The Company recognizes interest accrued related to unrecognized tax benefits in income tax expense. No amounts were accrued for penalties. The Company had approximately $ 145,000 accrued for the payment of interest at June 30, 2017 and December 31, 2016. The Company does not anticipate a significant change in the amount of unrecognized tax benefits in the next 12 months. As of June 30, 2017, the tax years ended December 31, 2013 through 2016, remain subject to audit by federal tax authorities and the tax years ended December 31, 2012 through 2016, remain subject to audit by state tax authorities. In March 2016, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2016 - 09, “ Compensation – Stock Compensation (Topic 718 ), ” which changed the accounting for certain aspects of share-based payments to employees. The Company adopted the new standard on January  1, 2017. The new guidance requires excess tax benefits and tax deficiencies to be recognized as income tax benefit or expense in the income statement and presented as an operating activity in the statement of cash flows when the awards are vested or are settled. The Company recorded excess tax benefits of $0.9 million for the three months ended June 30, 2017, and $2.0 million for the six months ended June 30, 2017, which was recorded as a reduction to income tax expense in the Consolidated Statement of Income and Comprehensive Income.

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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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