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Note 5 - Property and Equipment (Details) (USD $) | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Note 5 - Property and Equipment (Details) [Line Items] |  |  |
Depreciation | $ 44,200,000 | $ 47,800,000 | $ 52,600,000
Gain (Loss) on Disposition of Property Plant Equipment | (81,000) | (198,000) | (562,000)
Capital Leased Assets, Gross | 29,400,000 | 21,300,000 |
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation | 7,600,000 | 5,500,000 |
Capital Leases, Income Statement, Amortization Expense | 2,200,000 | 2,100,000 | 1,800,000
Revenue Equipment [Member] | Minimum [Member] |  |  |
Note 5 - Property and Equipment (Details) [Line Items] |  |  |
Capital Leases of Lessee, Term of Contract | 60 months |  |
Revenue Equipment [Member] | Maximum [Member] |  |  |
Note 5 - Property and Equipment (Details) [Line Items] |  |  |
Capital Leases of Lessee, Term of Contract | 84 months |  |
Net In Depreciation And Amortization Expense [Member] |  |  |
Note 5 - Property and Equipment (Details) [Line Items] |  |  |
Gain (Loss) on Disposition of Property Plant Equipment | $ 800,000 | $ 4,900,000 | $ 6,700,000

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- Definition Term of the capital leases' leasing arrangement. + References No definition available. + Details
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- Definition Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6455314&loc=d3e45014-112735 + Details
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- Definition The charge for the use of long-lived depreciable capital leased assets for the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6455314&loc=d3e45031-112735 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 840 -Section 55 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501752&loc=d3e56872-110439 + Details
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- Definition The total charge for the use of long-lived depreciable assets subject to a lease meeting the criteria for capitalization. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6455314&loc=d3e45014-112735 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 2) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 + Details
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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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