Note 12 - Foreign Exchange Contracts (Details) - Realized and Unrealized Gains From Foreign Currency Forward Exchange Contracts (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Realized and Unrealized Gains From Foreign Currency Forward Exchange Contracts [Abstract]
Foreign exchange forward contracts		Other Income (Loss)
Foreign exchange forward contracts	$ 197	$ (145)	$ 9

Amount of realized and unrealized gain of derivative instruments not designated or qualifying as hedging instruments.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959

Name:	us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGain
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration