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Stock Options And Restricted Stock (Details 1)	12 Months Ended
Stock Options And Restricted Stock (Details 1)	Jun. 30, 2012
January 2012 Grant [Member]
Expected dividend yield	1.50%
Stock price volatility	34.00%
Expected life (years)	5 years
Expected forfeiture rate	0.00%
Risk-free interest rate	0.80%
November 2011 Grant [Member]
Expected dividend yield	0.00%
Stock price volatility	33.00%
Expected life (years)	5 years
Expected forfeiture rate	0.00%
Risk-free interest rate	0.90%

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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