7. Derivative liability (Details) (USD $)
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3 Months Ended | 12 Months Ended |
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Mar. 31, 2013
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Dec. 31, 2012
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Derivative [Line Items] | ||
Risk-free interest rate | 0.09% | 0.02% |
Expected volatility | 165.00% | 165.00% |
Expected life (in years) | 14 days | 14 days |
Expected dividend yield | 0.00% | 0.00% |
Fair Value: | ||
2009 Fall Warrants | $ 3,221,138 | |
Fair value of derivative liabilities | 3,221,138 | |
2009 Fall Warrants [Member]
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Fair Value: | ||
2009 Fall Warrants | 3,441,752 | 3,221,138 |
Fair value of derivative liabilities | $ 3,441,752 | $ 3,221,138 |
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- Definition
Fair values as of the balance sheet date of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, and which are expected to be extinguished or otherwise disposed of within a year or the normal operating cycle, if longer, net of the effects of master netting arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Details
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- Definition
Expected dividends to be paid to holders of the underlying shares or financial instruments (expressed as a percentage of the share or instrument's price). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Risk-free interest rate assumption used in valuing an instrument. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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