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Concentrations (Details Narrative) (USD $)
9 Months Ended
Jun. 30, 2013
Sep. 30, 2012
Transportation Top Ten Customers
   
Customer revenue concentration 54.30%  
Accounts receivable concentration $ 3,703,000 $ 2,988,000
Transportation Top Customer
   
Customer revenue concentration 20.00%  
Mining Top Customer
   
Customer revenue concentration 73.20%  
Accounts receivable concentration $ 134,000