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Construction Backlog
12 Months Ended
Dec. 31, 2012
Construction Backlog [Abstract]  
Construction Backlog
13.  Construction Backlog
 
The following represents the backlog of signed engineering and project management contracts in existence at December 31, 2012 and 2011:
 
   
2012
   
2011
 
Balance - January 1
  $ 18,419     $ 35,789  
New contracts and change orders during the period
   
2,291,337
      510,522  
     
2,309,756
      546,311  
Less: contract revenue earned during the period
    (922,507 )     (527,892 )
      1,387,249       18,419  
Contracts signed but not started
    -       -  
Balance - December 31
  $ 1,387,249     $ 18,419  
 
Subsequent to December 31, 2012, the Company has received additional customer contracts totaling approximately $23,000.