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v3.20.1

Summary of significant accounting policies (Details Textual) | 12 Months Ended
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Dec. 31, 2019
Statement [Line Items] |
Credit Insurance Coverage Deduction Rate | 10.00%
Description of how entity determines economic relationship between hedged item and hedging instrument for purpose of assessing hedge effectiveness | A hedge is considered effective when changes in the cash flows of the underlying directly attributable to the risk hedged are offset with the changes in fair value, or in the cash flows of the hedging instrument with effectiveness between 80% to 125%.
Domestic Market [Member] | Trade receivables [member] |
Statement [Line Items] |
Credit Insurance Coverage Deduction Rate | 90.00%
International Market [Member] | Trade receivables [member] |
Statement [Line Items] |
Credit Insurance Coverage Deduction Rate | 99.00%

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- Definition The description of how the entity determines the economic relationship between the hedged item and the hedging instrument for the purpose of assessing the hedge effectiveness. Hedge effectiveness is the extent to which changes in the fair value or the cash flows of the hedging instrument offset changes in the fair value or the cash flows of the hedged item. [Refer: Hedging instruments [member]; Hedged items [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2019-01-01 -Paragraph 22B -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2019-en-r&anchor=para_22B_b&doctype=Standard -URIDate 2019-03-27 + Details
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