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v2.4.1.9

Note 9 - Income Taxes (Details) - Deferred Tax Assets and Liabilities (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Deferred tax assets: |  |
Insurance and claims | $ 16,153 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance | $ 11,691 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance
Net operating loss carryovers | 18,160 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards | 13,681 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
Other | 7,750 us-gaap_DeferredTaxAssetsOther | 6,035 us-gaap_DeferredTaxAssetsOther
Deferred fuel hedge | 8,144 us-gaap_DeferredTaxAssetsDerivativeInstruments |
Valuation allowance | (1,001)us-gaap_DeferredTaxAssetsValuationAllowance | (983)us-gaap_DeferredTaxAssetsValuationAllowance
Total deferred tax assets | 49,206 us-gaap_DeferredTaxAssetsNet | 30,424 us-gaap_DeferredTaxAssetsNet
Deferred tax liabilities: |  |
Property and equipment | (103,186)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment | (76,280)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment
Other | (2,186)us-gaap_DeferredTaxLiabilitiesOther | (4,793)us-gaap_DeferredTaxLiabilitiesOther
Prepaid expenses | (2,838)us-gaap_DeferredTaxLiabilitiesPrepaidExpenses | (3,194)us-gaap_DeferredTaxLiabilitiesPrepaidExpenses
Total net deferred tax liabilities | (108,210)us-gaap_DeferredIncomeTaxLiabilities | (84,267)us-gaap_DeferredIncomeTaxLiabilities
Net deferred tax liability | $ (59,004)us-gaap_DeferredTaxLiabilities | $ (53,843)us-gaap_DeferredTaxLiabilities

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences not separately disclosed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 + Details
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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