Note 15 - Share-Based and Other Compensation Plans (Phantom Stock) (Details) (Phantom Stock [Member], USD $)	Dec. 31, 2014
Phantom Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Exercise Price	$ 0
Share-based Compensation Arrangement, Dividend Equivalent Shares Accrued	4,452

Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

No definition available.

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant