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Stock Option Plans (Detail 2)
12 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Stock Option Plans Detail 2    
Expected option life (years) 10 years 9 years
Expected stock price volatility 104.00% 95.00%
Expected dividend yield 0.00% 0.00%
Risk-free interest rate 2.20% 2.75%