STOCK OPTIONS (Details 1)	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
STOCK OPTIONS AND RESTRICTED STOCK
Risk-free interest rate minimum	1.09%	1.87%
Risk-free interest rate maximum	1.23%	2.06%
Expected term, maximum	6 years 6 months	6 years 6 months
Forfeiture rate (excluding fully vested stock options) minimum	15.00%	15.00%
Forfeiture rate (excluding fully vested stock options) maximum	15.00%	15.00%
Expected volatility	140.00%	136.00%
Expected volatility	141.00%	137.00%

The estimated measure of the maximum 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.

No definition available.

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