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Note 5 - Property and Equipment (Details Textual) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Depreciation |  | $ 71,400 | $ 61,900 | $ 49,000
Gain (Loss) on Disposition of Property Plant Equipment |  | 207 | 26 | 33
Capital Leased Assets, Gross |  | 26,600 | 19,400 |
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation |  | 4,200 | 4,700 |
Capital Leases, Income Statement, Amortization Expense |  | $ 1,600 | 2,000 | 3,000
Revenue Equipment [Member] | Minimum [Member] |  |  |  |
Capital Leases of Lessee, Term of Contract | 5 years | 5 years |  |
Revenue Equipment [Member] | Maximum [Member] |  |  |  |
Capital Leases of Lessee, Term of Contract | 7 years | 7 years |  |
Net in Depreciation and Amortization Expense [Member] |  |  |  |
Gain (Loss) on Disposition of Property Plant Equipment |  | $ 800 | $ 600 | $ 2,700

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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 980 -SubTopic 840 -Section 55 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501752&loc=d3e56872-110439 Reference 2: 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 + 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=66902209&loc=d3e3602-108585 + Details
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