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Stock Options and Grants (Details 1) (Stock Option [Member])	6 Months Ended
	Jun. 30, 2012
Significant assumptions used to measure the fair value of warrants
Expected dividend yield	0.00%
Expected stock volatility	50.00%
Minimum [Member]
Significant assumptions used to measure the fair value of warrants
Risk-free interest rate	0.67%
Expected life	5 years 3 months
Maximum [Member]
Significant assumptions used to measure the fair value of warrants
Risk-free interest rate	1.22%
Expected life	5 years 6 months

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.

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