Note 5 - Fair Value of Financial Instruments (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Note 5 - Fair Value of Financial Instruments (Details) [Line Items]
Derivative, Collateral, Right to Reclaim Cash, Net	$ 2.9	$ 5.0
Trade Receivables Held-for-sale, Net, Not Part of Disposal Group	15.5
Allowance for Doubtful Accounts Receivable	0.2
Collateral for Collection Issues [Member]
Note 5 - Fair Value of Financial Instruments (Details) [Line Items]
Accounts Payable	$ 0.5

Amount of right to receive cash collateral under master netting arrangements that has been offset against derivative liabilities.

No definition available.

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Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.15(5))

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For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Amount, after allowance for bad debt, of trade receivables held-for-sale that are not part of a disposal group.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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