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Accounts Receivable
 12 Months Ended
Dec. 31, 2011
Receivables [Abstract]  
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]
 
5.            Accounts Receivable
 
At December 31, 2011 and 2010, the Company’s accounts receivable consisted of the following:
 
   
2011
    
2010
  
Billed:
            
SG Block sales
   $ 137,560     $ 120,318  
Engineering services
     33,317       33,317  
Project management
     19,578       69,962  
Unbilled project management
     43,388       -  
Total gross receivables
     233,843       223,597  
Less: allowance for doubtful accounts
     (50,015 )     (34,362 )
Total net receivables
   $ 183,828     $ 189,235