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Stock Plans (Summary Of Assumptions Used For Options Granted) (Details)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Stock Plans [Abstract]
Expected dividend yield	0.00%	0.00%	0.00%
Expected price volatility	58.00%	58.00%	56.00%
Risk-free interest rate, minimum	0.70%	1.29%	1.68%
Risk-free interest rate, maximum	0.80%	1.91%	2.22%
Expected life of options in years	4 years	4 years	4 years

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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