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Note 2 - Construction Contracts in Progress (Tables)
12 Months Ended
Dec. 31, 2012
Contracts in Progress [Table Text Block]
   
2012
   
2011
 
Costs incurred on uncompleted contracts
  $ 24,667     $ 17,673  
Estimated earnings
    13,047       13,476  
Earned revenue
    37,714       31,149  
Less billings to date
    (26,744 )     (27,782 )
Total
  $ 10,970     $ 3,367  
Classified as follows:
               
Costs and estimated earnings in excess of billings on uncompleted contracts
  $ 12,673     $ 7,262  
Billings in excess of costs and estimated earnings on uncompleted contracts
    (1,703 )     (3,895 )
Total
  $ 10,970     $ 3,367