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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 |

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