XML 60 R56.htm IDEA: XBRL DOCUMENT

SIGNIFICANT ACCOUNTING POLICIES (Schedule of Fair Value Assumptions) (Details)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Risk free interest rate	0.00%	2.00%	1.13%
Dividend yield	0.00%	0.00%	0.00%
Expected volatility	0.00%	75.00%	76.00%
Expected term	0 years	5 years	5 years
Forfeiture rate	0.00%	2.00%	6.00%

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.

+ References+ Details