Note 3 - Liabilities Subject To Compromise (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013
Retiree Committee Agreement [Member]
Note 3 - Liabilities Subject To Compromise (Details) [Line Items]
Bankruptcy Claims, Amount of Claims Settled	$ 650
KERIP and KURIP Stipulation Agreement [Member]
Note 3 - Liabilities Subject To Compromise (Details) [Line Items]
Bankruptcy Claims, Amount of Claims Settled	$ 244