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Note 16 - Lease Income (Details Textual) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014
Minimum [Member] | Tractors [Member] |  |
Lessor Leasing Arrangements, Operating Leases, Term of Contract | 300 days |
Maximum [Member] | Tractors [Member] |  |
Lessor Leasing Arrangements, Operating Leases, Term of Contract | 2 years 180 days |
Tractors [Member] |  |
Property Subject to or Available for Operating Lease, Gross | $ 35,199,000 | $ 14,143,000
Property Subject to or Available for Operating Lease, Net | 15,382,000 | 6,136,000
Operating Leases, Future Minimum Payments Receivable | 7,970,000 | 4,712,000
Building [Member] |  |
Property Subject to or Available for Operating Lease, Gross | 1,697,000 | 1,697,000
Property Subject to or Available for Operating Lease, Net | 1,310,000 | $ 1,368,000
Operating Leases, Future Minimum Payments Receivable | $ 48,000 |

X
- Definition Term of the lessor's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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Balance Type: | na
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X
- Definition Future minimum rental payments in aggregate as of the balance sheet date under operating leases. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6454179&loc=d3e41551-112718 + Details
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X
- Definition Amount before accumulated depreciation of physical assets used in the normal conduct of business to produce goods and services subject to or available for lease. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6453916&loc=d3e41457-112716 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6454179&loc=d3e41551-112718 + Details
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X
- Definition The amount of property, by major property class, net of accumulated depreciation, subject to or available for lease as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6454179&loc=d3e41551-112718 + Details
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- Details
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- Details
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- Details
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- Details
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