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Transactions in Soles (Details Textual)	Dec. 31, 2017	Dec. 31, 2016
Purchased call options [member]
Disclosure of Transactions in Soles [Line Items]
Closing foreign exchange rate	0.3088	0.2983
Written put options [member]
Disclosure of Transactions in Soles [Line Items]
Closing foreign exchange rate	0.3082	0.2976

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- References

No definition available.

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- Definition

The spot exchange rate at the end of the reporting period. Exchange rate is the ratio of exchange for two currencies. Spot exchange rate is the exchange rate for immediate delivery.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_112_c&doctype=Standard
-URIDate 2017-03-09

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