Annual report pursuant to Section 13 and 15(d)

Note 17 - Financial Instruments (Details)

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Note 17 - Financial Instruments (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Disclosure Text Block Supplement [Abstract]    
Restricted Cash and Investments, Noncurrent $ 15.4 $ 15.4
Municipal Debt Securities, at Carrying Value 14.0 7.5
Financial Instruments, Owned, Corporate Debt, at Fair Value 1.5 1.5
Proceeds from Sale of Available-for-sale Securities $ 11.2 $ 7.2