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Net Loss per Share (Narrative) (Details) (USD $) | 3 Months Ended
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Dec. 31, 2012
Net Loss Per Share 2 | $ 25,224,918
Net Loss Per Share 3 | $ 1,819,754
Net Loss Per Share 4 | 12,619,597
Net Loss Per Share 5 | 12,619,049
Net Loss Per Share 6 | 791,671
Net Loss Per Share 7 | 35,000
Net Loss Per Share 8 | 828,631
Net Loss Per Share 9 | 60,000

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