Note 4 Fair Value (Narratives) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Auction Market Preferred Securities [Abstract]
Collateralized Asset Value Exceeding Value of ARPS Percentage	300.00%
Auction Rate Preferred Securities, Credit Ratings	at least AA
Auction Rate Preferred Securities, Percentage Collateralized	100.00%
Debt, Long-term and Short-term, Combined Amount [Abstract]
Debt, Fair Value	$ 51.6	$ 21.4