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Note 1 - Accounting Policies (Details) (USD $)
 12 Months Ended
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%