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Stockholders' Equity (Details 3) (USD $) | 12 Months Ended
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Sep. 30, 2012
Share based compensation arrangement by share based payment award options vested and unvested [Abstract] |
Number of shares, vested | 2,074,410
Weighted Average Exercise Price Per Share, vested | $ 1.44
Weighted Average Remaining Contractual Life, vested | 4 years 8 months 19 days
Aggregate Intrinsic Value, vested | $ 4,322,186
Number of shares, unvested | 1,437,876
Weighted Average Exercise Price Per Share, unvested | $ 6.20
Weighted Average Remaining Contractual Life, unvested | 8 years 11 months 19 days
Aggregate Intrinsic Value, unvested | 440,698
Number of shares, total | 3,512,286
Weighted Average Exercise Price Per Share, total | $ 3.39
Weighted Average Remaining Contractual Life, total | 6 years 5 months 16 days
Aggregate Intrinsic Value, total | $ 4,762,884

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