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Note 18 - Lease Income (Details Textual) - USD ($) | Dec. 31, 2018 | Dec. 31, 2017
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Trucks [Member] |  |
Property Subject to or Available for Operating Lease, Gross | $ 61,061,000 | $ 42,206,000
Property Subject to or Available for Operating Lease, Net, Total | 34,299,000 | 17,028,000
Operating Leases, Future Minimum Payments Receivable, Total | $ 22,319,000 | 9,360,000
Trucks [Member] | Minimum [Member] |  |
Lessor, Operating Lease, Term of Contract | 210 days |
Trucks [Member] | Maximum [Member] |  |
Lessor, Operating Lease, Term of Contract | 5 years |
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, Total | 1,138,000 | $ 1,195,000
Operating Leases, Future Minimum Payments Receivable, Total | $ 12,000 |

X
- Definition Term of lessor's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=77888428&loc=SL77919359-209981 + Details
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- Definition Future minimum rental payments in aggregate as of the balance sheet date under operating leases. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84164653&loc=d3e41551-112718 + Details
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- 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84164653&loc=d3e41551-112718 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=77907726&loc=d3e41457-112716 + Details
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- 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84164653&loc=d3e41551-112718 + Details
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- Details
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- Details
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