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Accounts Receivable
 3 Months Ended
Mar. 31, 2012
Receivables [Abstract]  
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]
 
4.           Accounts Receivable
 
At March 31, 2012 and December 31, 2011, the Company’s accounts receivable consisted of the following:
 
   
2012
    
2011
  
Billed:
            
             
SG block sales
   $ 268,015     $ 137,560  
Engineering services
     54,307       33,317  
Project management
     23,077       19,578  
Unbilled:
                
Engineering services
     11,125       -  
Project management
     -       2,880  
Total gross receivables
     356,524       193,335  
Less: allowance for doubtful accounts
     (50,015 )     (50,015 )
Total net receivables
   $ 306,509     $ 143,320