XML 111 R82.htm IDEA: XBRL DOCUMENT

Fair Value of Warrants Estimated Using Black-Scholes Method (Detail) (Warrant)	1 Months Ended
	Sep. 12, 2012
Warrant
Class of Warrant or Right [Line Items]
Risk-free interest rate	0.70%
Expected volatility	42.28%
Expected life (years)	5 years
Expected dividend yield	2.50%

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