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4. SUPPLEMENTAL CASH FLOW INFORMATION
 9 Months Ended
Sep. 30, 2016
Supplemental Cash Flow Elements [Abstract]  
Cash Flow, Supplemental Disclosures [Text Block]
4.SUPPLEMENTAL CASH FLOW INFORMATION

Supplemental cash flow information is as follows:


   (Unaudited) 
   Nine Months Ended 
   September 30, 
   2016   2015 
         
Interest  $431,591   $516,984 
          
Federal, state and local income taxes, net of refunds  $231,707   $5,541,408 
           
Fixed asset purchases in accounts payable  $253,303   $430,594