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5. Risk Management (Details Narrative) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Risk Management Details Narrative |  |
Total exposure | R$ 5,702,375 | R$ 5,692,984
Financial instrument assets from related parties | 815,160 | 871,709
Effects on profit for the year before taxes | 87,133 | 86,910
Effects on results before taxes | R$ 570,238 | R$ 569,298
Leverage ratio | 36.00% | 40.00%
Financial instrument assets receivables from related parties | R$ 815,160 | R$ 871,709
Reimbursement of additional retirement and pension plan | R$ 709,208 | R$ 788,180

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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 -Note Effective 2018-01-01 -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 35K -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_35K_a&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2018-01-01 -Name IFRS -Number 7 -IssueDate 2017-01-01 -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 2017-03-09 + Details
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