Share-Based Compensation (Details) (USD $)	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Schedule of assumptions used to calculate the Black-Scholes option pricing model for stock options granted
Weighted-average risk-free interest rates:	1.32%
Dividend yield:
Weighted-average expected life of the option:	7 years
Weighted-average expected stock price volatility:	92.27%
Weighted-average fair value of the options granted:	$ 0.33

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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.

+ References

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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.

+ References

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-Topic 718

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-Subparagraph (SAB TOPIC 14.D.2)

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-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section D

-Subsection 2

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

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- Definition

The range of expected volatilities used and the weighted-average expected volatility for an entity using a valuation technique with different volatilities during the contractual term.

+ References

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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