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Note 13 - Income Taxes (Details) - Income Tax Expense (Benefits) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Current provision- |  |  |
Federal | $ 21,826 us-gaap_CurrentFederalTaxExpenseBenefit | $ 7,755 us-gaap_CurrentFederalTaxExpenseBenefit | $ 8,647 us-gaap_CurrentFederalTaxExpenseBenefit
State | 3,531 us-gaap_CurrentStateAndLocalTaxExpenseBenefit | 2,008 us-gaap_CurrentStateAndLocalTaxExpenseBenefit | 1,917 us-gaap_CurrentStateAndLocalTaxExpenseBenefit
| 25,357 us-gaap_CurrentIncomeTaxExpenseBenefit | 9,763 us-gaap_CurrentIncomeTaxExpenseBenefit | 10,564 us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred provision- |  |  |
Federal | 23,243 us-gaap_DeferredFederalIncomeTaxExpenseBenefit | 20,470 us-gaap_DeferredFederalIncomeTaxExpenseBenefit | 25,752 us-gaap_DeferredFederalIncomeTaxExpenseBenefit
State | 1,986 us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit | 1,611 us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit | 2,412 us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit
| 25,229 us-gaap_DeferredIncomeTaxExpenseBenefit | 22,081 us-gaap_DeferredIncomeTaxExpenseBenefit | 28,164 us-gaap_DeferredIncomeTaxExpenseBenefit
Provision (benefit) for income taxes | $ 50,586 us-gaap_IncomeTaxExpenseBenefit | $ 31,844 us-gaap_IncomeTaxExpenseBenefit | $ 38,728 us-gaap_IncomeTaxExpenseBenefit

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- Definition Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I.7) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Current Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6509736 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -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 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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section I -Paragraph Question 1-7 + Details
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- Definition Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I.7) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Current Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6509736 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -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 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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section I -Subsection 7 + Details
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