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Note 4 - Shareholder Remuneration System - Shareholder System (Details) - EUR (€)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share holder Remuneration System Abstract
Par Value Per Share	€ 0.49	€ 0.49	€ 0.49

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