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Note 16 - Current Tax Assets and Liabilities (Tables)

12 Months Ended

Dec. 31, 2017

Statement Line Items [Line Items]

Disclosure of detailed information about current tax assets [text block]

		Year ended December 31,
Current tax assets		2017				2016
V.A.T. credits			76,714				61,552
Prepaid taxes			55,620				79,434
			132,334				140,986

Disclosure of detailed information about tax liabilities [text block]

		Year ended December 31,
Current tax liabilities		2017				2016
Income tax liabilities			35,210				55,841
V.A.T. liabilities			14,313				11,065
Other taxes			52,882				34,291
			102,405				101,197