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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

+ Details

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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

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Convertible debentures (Fair value assumptions) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Sep. 04, 2013	Aug. 28, 2013	Aug. 07, 2012	Mar. 27, 2012
Debt Instrument [Line Items]
Company stock price	$ 1.64	$ 1.50	$ 1.55	$ 1.6	$ 1.6
Term	4 years 9 months 10 days
Volatility	68.80%
Minimum
Debt Instrument [Line Items]
Risk -free rate	1.43%
Maximum
Debt Instrument [Line Items]
Risk -free rate	1.45%