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Note 14 - Commitments and Contingencies (Details Textual) | Dec. 31, 2016 USD ($)
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Operating Leases, Future Minimum Payments Due | $ 430,000
Revenue Equipment Expenditure [Member] |
Contractual Obligation, Future Minimum Payments Due, Remainder of Fiscal Year | 50,700,000
Building Construction and Acquisition Expenditures [Member] |
Contractual Obligation, Future Minimum Payments Due, Remainder of Fiscal Year | $ 95,000

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- Definition Amount of contractual obligation maturing in the remainder of the fiscal year following the latest fiscal year ended. + References No definition available. + Details
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- Definition Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 + Details
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