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Share-Based Compensation (Details 2) (USD $)
3 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Weighted-average assumptions    
Volatility 81.00%   
Risk-free interest rate 0.90%   
Forfeiture rate 10.00%   
Dividend yield 0.00%   
Expected life 6 years 4 months 24 days   
Weighted-average estimated fair value of options granted during the period $ 0.70