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Note 1 - Accounting Policies (Details) (USD $) | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Note 1 - Accounting Policies (Details) [Line Items] |  |  |
Bank Overdrafts | $ 3,179,000 | $ 4,803,000 |
Due from Employees, Current | 707,000 | 882,000 |
Decrease In Depreciation Expense As Result Of Adjustments To Estimated Lives And Salvage Values | 550,000 | 450,000 |
Increase Decrease In Net Income Loss As Result Of Adjustments To Estimated Lives And Salvage Values | 340,000 | 300,000 | (2,600,000)
Increase Decrease In Net Income Loss Per Share As Result Of Adjustments To Estimated Lives And Salvage Values (in Dollars per share) | $ 0.04 | $ 0.03 | $ (0.29)
Other Depreciation and Amortization |  |  | 4,200,000
Period For Amortizing Prepaid Tires | 24 months |  |
Advertising Expense | $ 662,000 | $ 685,000 | $ 437,000
Truckload Services [Member] | Product Concentration Risk [Member] | Sales Revenue, Services, Net [Member] |  |  |
Note 1 - Accounting Policies (Details) [Line Items] |  |  |
Concentration Risk, Percentage | 92.60% | 91.80% | 93.50%

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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848 + Details
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