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Note 9 - Income Taxes | 3 Months Ended
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Mar. 31, 2015
Income Tax Disclosure [Abstract] |
Income Tax Disclosure [Text Block] |
9. | Income Taxes
For the three-month periods ended March 31, 2015 and 2014, our income tax expense and effective income tax rates were as follows (dollars in thousands):
|  | Three Months Ended March 31, |
|  | 2015 |  |  | 2014 |
Income tax expense |  | $ | 3,940 |  |  | $ | 859 |
Effective income tax rate |  |  | 41.3 | % |  |  | 40.2 | %
We estimate our differences between taxable income or loss and recorded income or loss on an annual basis. Our tax provision for each quarter is based upon these full year projections, which are revised each reporting period. These projections incorporate estimates of permanent differences between U.S. GAAP income or loss and taxable income or loss, state income taxes and adjustments to our liability for unrecognized tax benefits to adjust our statutory Federal income tax rate of 35.0% to our effective income tax rate. For the three-month period ended March 31, 2015, these estimates increased or decreased our statutory Federal income tax rate of 35.0% to our effective income tax rate of 41.3% as follows: state income taxes added 4.6%, permanent differences between our U.S. GAAP income and taxable income added 1.6%, a discrete share based compensation adjustment added 1.0% and adjustments to our reserve for uncertain tax positions resulted in a reduction of 0.9%. For the three-month period ended March 31, 2014, these estimates increased or decreased our statutory Federal income tax rate of 35.0% to our effective income tax rate of 40.2% as follows: state income taxes added 4.4%, permanent differences between our U.S. GAAP income and taxable income added 1.0%, and adjustments to our reserve for uncertain tax positions resulted in a reduction of 0.2%.

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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 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 + Details
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