XML 51 R65.htm IDEA: XBRL DOCUMENT v2.4.0.6
Concentrations (Details Narrative) (USD $)
12 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Transportation Top Ten Customers
   
Customer revenue concentration 52.90%  
Accounts receivable concentration $ 2,988,000 $ 3,115,000
Transportation Top Customer
   
Customer revenue concentration 19.20%  
Mining Top Customer
   
Customer revenue concentration 77.20%  
Accounts receivable concentration $ 169,000