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5. Risk Management (Details Narrative) - BRL (R$) R$ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Risk Management Details Narrative Abstract |  |
Total exposure | R$ 6,694,912 | R$ 5,702,375
Effects on results before taxes | 669,491 | 570,238
Effects on profit for the year before taxes | R$ 92,188 | R$ 87,133
Leverage ratio | 34.00% | 36.00%
Financial instrument assets receivables from related parties | R$ 843,250 | R$ 815,160
Reimbursement of additional retirement and pension plan | R$ 737,503 | R$ 709,208

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- Definition The amount that best represents the maximum exposure to credit risk without taking into account any collateral held or other credit enhancements (for example, netting agreements that do not qualify for offset in accordance with IAS 32). [Refer: Credit risk [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 35K -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_35K_a&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2021-01-01 -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 36 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-02&anchor=para_36_a&doctype=Standard&book=b -URIDate 2018-03-16 + Details
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