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Share-Based Payments (Assumptions Used) (Details) (Stock Options [Member], USD $)	3 Months Ended		9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Expected volatility	80.00%	69.00%	80.00%	60.00%
Risk-free interest rate	0.32%	1.14%	0.92%	1.22%
Expected dividend yield	0.00%	0.00%	0.00%	0.00%
Expected life (in years)	6 years 2 months 16 days	6 years 3 months	6 years 5 months 16 days	6 years 3 months
Estimated fair value per option granted	$ 0.81	$ 3.81	$ 0.95	$ 4.12

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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