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Summary of Changes in Fair Value of Level 3 Financial Instrument Liability (Details) (Significant Unobservable Inputs [Member], USD $)
9 Months Ended
Jul. 31, 2012
Significant Unobservable Inputs [Member]
 
Balance October 31, 2011 $ 175,865
Additions 112,885
Net gain included in earnings (55,195)
Settlements (182,831)
Balance July 31, 2012 $ 50,724