Note 3 Fair Value (Narratives) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Sep. 30, 2012	Mar. 31, 2012
Auction Market Preferred Securities [Abstract]
Collateralized Asset Value Exceeding Value of ARPS Percentage	300.00%
Auction Rate Preferred Securities, Credit Ratings	AAA
Auction Rate Preferred Securities, Percentage Collateralized	100.00%
Debt, Long-term and Short-term, Combined Amount [Abstract]
Long-term Debt, Fair Value	$ 21.9	$ 23.4

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

No definition available.

Name:	us-gaap_LongTermDebtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant