Quarterly report pursuant to sections 13 or 15(d)

Net Loss Per Share Of Common Stock (Detail)

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Net Loss Per Share Of Common Stock (Detail)
9 Months Ended
Jul. 31, 2012
Jul. 31, 2011
Stock Options [Member]
   
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 17,340,045 18,817,045
Warrant [Member]
   
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 7,500,000 7,500,000