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Note 5 - Other Operating Income and Expenses - Components of Other Operating Income and Expenses (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Other operating income: |  |  |
Net income from other sales | $ 3,604 | $ 4,395 | $ 16,275
Net rents | 4,909 | 4,325 | 4,852
Other | 6,546 | 1,796 |
| 15,059 | 10,516 | 21,127
Other operating expenses: |  |  |
Contributions to welfare projects and non-profits organizations | 11,379 | 9,158 | 9,534
Loss on fixed assets and material supplies disposed / scrapped |  | 118 | 57
Allowance for doubtful receivables | 1,179 | 84 | 432
Other |  |  | 1,388
| 12,558 | 9,360 | 11,411
From discontinued operations |  | (1) | (248)
| $ 12,558 | $ 9,359 | $ 11,163

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- Definition The amount of expenses that the entity does not separately disclose in the same statement or note when the entity uses the 'function of expense' form for its analysis of expenses. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 26 -IssueDate 2017-01-01 -Paragraph 35 -Subparagraph b -Clause vii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=26&date=2017-03-01&anchor=para_35_b_vii&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 103 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_103&doctype=Standard -URIDate 2017-03-09 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 99 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_99&doctype=Standard -URIDate 2017-03-09 + Details
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