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Common Stock (Details 1) (USD $)
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12 Months Ended | |
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Dec. 31, 2012
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Dec. 31, 2011
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| Summary of weighted-average significant assumptions used to determine fair value of options | ||
| Significant assumptions (weighted-average): | $ 0.30 | $ 0.30 |
| Risk-free interest rate at grant date | 0.69% | 0.72% |
| Expected stock price volatility | 22.79% | 56.03% |
| Expected dividend payout | 0.00% | 0.00% |
| Expected option life (in years) | 2 years 9 months 18 days | 3 years 9 months 18 days |
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- Details
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- Definition
Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award. No definition available.
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- Definition
The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Expected term of share-based compensation awards, 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
The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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