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Note 13 - Change in Accounting Estimate
3 Months Ended
Mar. 31, 2012
Accounting Changes and Error Corrections [Text Block]
NOTE 13 CHANGE IN ACCOUNTING ESTIMATE

Effective May 1, 2011, the Company changed the time period over which it depreciates its 2005 model year and newer trailers and it changed the amount of the salvage value to which those trailers are being depreciated.  The depreciation time period was changed to 14 years from 10 years and the salvage value was changed to $500 from 25.0% of the original purchase price.  The Company believes that both of these changes more clearly and appropriately reflect the state of the current trailer market and thus, will more reasonably and accurately report the value of the trailers on the balance sheet.  This change is being accounted for as a change in estimate.  This change in estimate resulted in a reduction of depreciation expense as set forth in the following table:

 
(in thousands, except per share data)
 
 
Pre-tax Basis
 
Net of Tax
 
Per Share Effect
 
Three Months Ended
                 
March 31, 2012
  $ 573     $ 354     $ 0.03  
March 31, 2011
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