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Note 5 - Property and Equipment
12 Months Ended
Dec. 31, 2012
Property, Plant and Equipment Disclosure [Text Block]
5.           PROPERTY AND EQUIPMENT

A summary of property and equipment, at cost, as of December 31, 2012 and 2011 is as follows:

(in thousands)
 
Estimated
Useful Lives
(years)
   
2012
   
2011
 
Revenue equipment
  3 -
10
    $ 331,761     $ 351,433  
Communications equipment
  5 -
10
      13,089       12,706  
Land and improvements
  0 -
10
      16,658       18,910  
Buildings and leasehold improvements
  7 -
40
      41,050       39,025  
Construction in-progress
    -         1,310       1,221  
Other
  2 -
7
      16,079       16,756  
              $ 419,947     $ 440,051  

Depreciation expense was $47.8 million, $52.6 million, and $55.5 million in 2012, 2011, and 2010, respectively.  The aforementioned depreciation expense excludes net gains on the sale of property and equipment totaling $4.9 million, $6.7 million and $4.3 million in 2012, 2011 and 2010, respectively, which are presented net in depreciation and amortization expense in the consolidated statements of operations.

We lease certain revenue equipment under capital leases with terms of 60 months. At December 31, 2012 and 2011, property and equipment included capitalized leases, which had capitalized costs of $21.3 million and accumulated amortization of $5.5 million and $3.4 million, respectively.  Amortization of these leased assets is included in depreciation and amortization expense in the consolidated statement of operations and totaled $2.1 million, $1.8 million, and $1.4 million during 2012, 2011, and 2010, respectively.