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4. SUPPLEMENTAL CASH FLOW INFORMATION
3 Months Ended
Mar. 31, 2013
Cash Flow, Supplemental Disclosures [Text Block]
4. SUPPLEMENTAL CASH FLOW INFORMATION

Supplemental cash flow information is as follows:


    (Unaudited)  
    Three Months Ended  
    March 31,  
    2013     2012  
             
Interest   $ 130,957     $ 177,125  
                 
Federal, state and local income taxes, net of refunds   $ 1,872,280     $ 165,910  
                 
Fixed asset purchases in accounts payable   $ 404,855     $ 469,908