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Significant Concentrations (Narrative) (Details)
 9 Months Ended
Jun. 30, 2013
Significant Concentrations 1 10.00%
Significant Concentrations 2 12.00%
Significant Concentrations 3 11.20%
Significant Concentrations 4 10.40%
Significant Concentrations 5 10.00%
Significant Concentrations 6 11.30%