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Note 4 - Property and Equipment
6 Months Ended
Jun. 30, 2012
Property, Plant and Equipment Disclosure [Text Block]
4.  
Property and Equipment

Property and equipment are summarized as follows (in thousands):

   
June 30,
2012
   
December 31,
2011
 
Construction equipment
  $ 135,511     $ 125,222  
Transportation equipment
    16,428       17,963  
Buildings
    7,186       4, 729  
Office equipment
    1,292       1,077  
Construction in progress
    1,051       2,544  
Land
    4,886       3,026  
Water rights
    200       200  
      166,554       154,761  
Less accumulated depreciation
    (64,151 )     (71,332 )
    $ 102,403     $ 83,429  

Construction in progress at June 30, 2012 consisted primarily of expenditures for a new office in San Antonio, Texas.  In addition to the expenditures for the new office in San Antonio, construction in progress at December 31, 2011 consisted primarily of expenditures for a new office in Dallas, Texas, which was completed during the three months ended March 31, 2012.