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Non-controlling interest (Tables) | 12 Months Ended
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Dec. 31, 2018
Disclosure of Non-controlling interest [Abstract] |
Schedule of Non-controlling Interest Changes |
The table below shows the changes for the years ended December 31, 2018 and 2017:
| 2 0 1 8 |  | 2 0 1 7
Balance at beginning of year | $ | (108,572) |  | $ | (105,186)
Share of profits and losses for the year |  | (206,417) |  |  | (145)
Share of translation effects of foreign subsidiaries |  | (8,380) |  |  | (3,241)
Balance at the end of the year | $ | (323,369) |  | $ | (108,572)

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