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Employee benefits (Tables) | 12 Months Ended
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Dec. 31, 2019
Disclosure of defined benefit plans [abstract] |
Schedule of Net Cost of Period Related to Retirement Benefits Plan | The most important actuarial hypothesis used for the purposes of the determination of the net cost of the period related to the retirement benefits plan were as follows:
| 2 0 1 9 |  | 2 0 1 8 |  | 2 0 1 7
Discount rate |  | 7.7 |  |  | 9.5 |  |  | 7.5
Rate of salary increase |  | 4.5 |  |  | 4.5 |  |  | 4.5
Schedule of Components of Net Cost of Benefits Plan to Employees | Components of net cost of benefits plan to employees are as follows:
| 2 0 1 9 |  | 2 0 1 8 |  | 2 0 1 7
Current service cost | $ | 2,179 |  | $ | 2,839 |  | $ | 5,697
Financial cost |  | 4,242 |  |  | 4,025 |  |  | 6,637
Past service cost |  | 1,947 |  |  | 1,481 |  |  | (3,575)
Anticipated reduction obligations |  | 296 |  |  | (327) |  |  | (12,517)
Actuarial losses (gains) recognized in the year |  | 32,934 |  |  | (17,928) |  |  | (4,339)
| $ | 41,598 |  | $ | (9,910) |  | $ | (8,097)
Schedule of Components of Expense | The expense for the years 2019, 2018 and 2017 was recorded as follows:
| 2 0 1 9 |  | 2 0 1 8 |  | 2 0 1 7
Cost of sales | $ | 23,296 |  | $ | (5,550) |  | $ | (4,534)
Administrative expenses |  | 18,302 |  |  | (4,360) |  |  | (3,563)
| $ | 41,598 |  | $ | (9,910) |  | $ | (8,097)
Schedule of Defined Benefit Obligation and Balance of Liability | Changes in the present value of the defined benefit obligation and the balance of the liability consist of the following:
| 2 0 1 9 |  | 2 0 1 8
Opening balance of the defined benefit obligation | $ | 81,770 |  | $ | 91,822
Current service cost |  | 2,179 |  |  | 2,697
Past service cost |  | 1,947 |  |  | 1,481
Financial cost |  | 4,242 |  |  | 4,025
Actuarial losses (gains) |  | 32,934 |  |  | (17,928)
Benefits paid |  | 296 |  |  | (327)
Closing balance of the defined benefit obligation | $ | 123,368 |  | $ | 81,770

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- Definition The disclosure of defined benefit plans. [Refer: Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 138 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_138&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The disclosure of a net defined benefit liability (asset). [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 140 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_140_a&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The disclosure of detailed information about components of expense. + References No definition available. + Details
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- Definition The disclosure of detailed information about components of net cost of benefits plan to employees. + References No definition available. + Details
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