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Note 4 - Property and Equipment (Tables)
3 Months Ended
Mar. 31, 2014
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment [Table Text Block]
   
March 31,
2014
   
December 31,
2013
 
Construction equipment
  $ 126,183     $ 127,199  
Transportation equipment
    18,602       19,132  
Buildings
    10,512       10,512  
Office equipment
    2,025       2,025  
Leasehold Improvement
    828       816  
Construction in progress
    280       -  
Land
    5,306       5,309  
Water rights
    200       200  
      163,936       165,193  
Less accumulated depreciation
    (74,504 )     (71,510 )
    $ 89,432     $ 93,683