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11. SUPPLEMENTAL INFORMATION OF CASH FLOWS (Tables)
12 Months Ended
May 31, 2014
Supplemental Information Of Cash Flows Tables  
Supplemental information of cash flows
    2014     2013  
Non-cash investing and financing activities:            

   Acquisition of equipment in exchange for net

      related party receivable

   $ 1,087,302          $ -  

   Reduction in net carrying value  of equipment

      resulting from capital lease termination

   $ 212,311      $ -  

    Settlement of related party note payable in

      acquisition of equipment

  $ 527,716      $ -  
   Preferred dividend accrual    $ 27,603      $ 326,781  
                 
Supplemental information:                
       Interest paid    $ 567,507      $ 423,530  
   Taxes paid    $ 26,045      $ -