Note 24 - Derivative Financial Instruments - Hedge Reserve Evolution (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Statement Line Items [Line Items]
Hedge accounting reserve	$ (4,700)
Hedge accounting reserve	200	$ (4,700)
Cash flow hedges [member]
Statement Line Items [Line Items]
Hedge accounting reserve	(4,742)	2,783
Movements	4,502	(7,525)
Hedge accounting reserve	(240)	(4,742)
Foreign exchange derivatives contracts [member] \| Cash flow hedges [member]
Statement Line Items [Line Items]
Hedge accounting reserve	(4,742)	2,783
Movements	4,502	(7,525)
Hedge accounting reserve	$ (240)	$ (4,742)

The gain (loss) on the change in fair value of the hedged item used as a basis for recognising hedge ineffectiveness. Hedge ineffectiveness is the extent to which the changes in the fair value or the cash flows of the hedging instrument are greater or less than those on the hedged item.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2018-01-01
-Name IFRS
-Number 7
-IssueDate 2017-01-01
-Paragraph 24B
-Subparagraph a
-Clause iv
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_24B_a_iv&doctype=Standard
-URIDate 2017-03-09

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2018-01-01
-Name IFRS
-Number 7
-IssueDate 2017-01-01
-Paragraph 24B
-Subparagraph b
-Clause i
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_24B_b_i&doctype=Standard
-URIDate 2017-03-09

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration