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Incentive Plans Incentive Plans: Equity Incentive Plan Policy: Valuation Assumptions (Details) (Equity Incentive Plans, Stock Options)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Equity Incentive Plans \| Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility range	55.20%	0.00%	55.40%
Weighted-average volatility	55.20%	0.00%	55.40%
Expected dividend yield	1.20%	0.00%	1.60%
Expected term	7 years 8 months 8 days	0 years	7 years 1 month 6 days
Risk-free interest rate	1.20%	0.00%	2.30%

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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