Convertible Debentures (Detail) - Fair value of the embedded conversion feature of the Convertible Debenture (USD $)	12 Months Ended	3 Months Ended
Oct. 31, 2012	Oct. 31, 2011	Jan. 31, 2013 Convertible debentures due January 2015 [Member]
Stock price on valuation date (in Dollars per share)			$ 0.21
Conversion price (in Dollars per share)			$ 0.15
Stock premium for liquidity			57.00%
Term (years)			2 years
Expected volatility	109.00%	107.00%	110.00%
Weighted average risk-free interest rate	1.16%	0.88%	0.30%
Trials (in Shares)			100,000
Aggregate fair value (in Dollars)			$ 1,180,000

Aggregate fair value

No definition available.

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- Definition

Stock premium for liquidity rate.

+ References

No definition available.

+ Details

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- Definition

Trials

+ References

No definition available.

+ Details

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- Definition

The price per share of the conversion feature embedded in the debt instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number APB14-1

-Paragraph 32

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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- Definition

Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

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- Definition

Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price.

+ References

+ Details

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- Definition

Risk-free interest rate assumption used in valuing an instrument.

+ References

+ Details

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

+ Details

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