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Trade receivables - Net (Tables) | 12 Months Ended
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Dec. 31, 2019
Trade and other receivables [abstract] |
Schedule of Age of Receivables Past Due | Age of net receivables that are past due were as follows:
| At December 31,
| 2 0 1 9 |  | 2 0 1 8
30 - 60 days | $ | 279,048 |  | $ | 221,996
61 - 90 days |  | 121,790 |  |  | 57,119
91 + days |  | 535,955 |  |  | 188,262
Total | $ | 936,793 |  | $ | 467,377
Schedule of Allowance for Doubtful Accounts | During the years ended December 31, 2019 and 2018, the movement in the allowance for doubtful accounts was as follows:
| 2 0 1 9 |  | 2 0 1 8
Balance at beginning of year | $ | 231,778 |  | $ | 199,855
Provisions |  | 4,529 |  |  | 7,486
Recoveries |  | (63) |  |  |
Translations effects |  | 854 |  |  | 24,437
Balance at end of year | $ | 237,098 |  | $ | 231,778

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- Definition The disclosure of financial assets that are either past due or impaired. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2021-01-01 -Name IFRS -Number 7 -IssueDate 2019-01-01 -Paragraph 37 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_37&doctype=Standard&book=b -URIDate 2019-03-27 + Details
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