Note 2 - Derivative Instruments and Hedging Activities (Details) - Fair Value of Derivatives (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Commodity Contract [Member]
Note 2 - Derivative Instruments and Hedging Activities (Details) - Fair Value of Derivatives [Line Items]
Net derivatives	$ (55)	$ 69
Foreign Exchange Contract [Member]
Note 2 - Derivative Instruments and Hedging Activities (Details) - Fair Value of Derivatives [Line Items]
Net derivatives	(190)	56
Interest Rate Swap [Member]
Note 2 - Derivative Instruments and Hedging Activities (Details) - Fair Value of Derivatives [Line Items]
Net derivatives	$ 103	$ 1,236

Fair value of the assets less the liabilities of a derivative or group of derivatives.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 45

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 15

-URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13495-108611

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 45

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant