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4. SUPPLEMENTAL CASH FLOW INFORMATION
 6 Months Ended
Jun. 30, 2013
Cash Flow, Supplemental Disclosures [Text Block]  
Cash Flow, Supplemental Disclosures [Text Block]
4. SUPPLEMENTAL CASH FLOW INFORMATION

Supplemental cash flow information is as follows:


    (Unaudited)  
    Six Months Ended  
    June 30,  
    2013     2012  
             
Interest   $ 269,953     $ 319,432  
                 
Federal, state and local income taxes, net of refunds   $ 2,020,008     $ 273,766  
                 
Fixed asset purchases in accounts payable   $ 281,812     $ 207,731