XML 78 R45.htm IDEA: XBRL DOCUMENT

Share-Based Payments (Assumptions Used) (Details) (Stock Options, USD $)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Expected volatility	80.00%	63.00%
Risk-free interest rate	0.93%	1.15%
Expected dividend yield	0.00%	0.00%
Expected life (in years)	6 years 9 months 25 days	6 years 3 months
Estimated fair value per option granted	$ 0.66	$ 6.82

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