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4. SUPPLEMENTAL CASH FLOW INFORMATION (Tables)
 9 Months Ended
Sep. 30, 2013
Supplemental Cash Flow Elements [Abstract]  
Supplemental Cash Flow Information Related Text Supplemental cash flow information is as follows:

    (Unaudited)  
    Nine Months Ended  
    September 30,  
    2013     2012  
             
Interest   $ 479,280     $ 518,111  
                 
Federal, state and local income taxes, net of refunds   $ 2,081,478     $ 340,764  
                 
Fixed asset purchases in accounts payable   $ 414,961     $ 235,902