Note 4 - Shareholder Remuneration System - Dividens (Details)	6 Months Ended
Jun. 30, 2019 € / shares
Share holder Remuneration System Abstract
Dividends Paid per share	€ 0.16
Net Dividends Paid per share	€ 0.1296

The amount of dividends paid per ordinary share.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 34
-IssueDate 2018-01-01
-Paragraph 16A
-Subparagraph f
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=34&date=2018-03-01&anchor=para_16A_f&doctype=Standard
-URIDate 2018-03-16

Name:	ifrs-full_DividendsPaidOrdinarySharesPerShare
Namespace Prefix:	ifrs-full_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration