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Net Loss per Share (Narrative) (Details) (USD $)
 3 Months Ended
Dec. 31, 2012
Net Loss Per Share 1 $ 28,165,749
Net Loss Per Share 2 $ 1,819,754
Net Loss Per Share 3 12,619,597
Net Loss Per Share 4 12,619,049
Net Loss Per Share 5 791,671
Net Loss Per Share 6 35,000
Net Loss Per Share 7 828,631
Net Loss Per Share 8 60,000