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Schedule of earnings per share (Details) - BRL (R$) R$ / shares in Units, R$ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Net income attributable to equity holders of the parent | R$ 223,326 | R$ 292,075 | R$ 153,916
Weighted average number of outstanding shares | 93,291,480 | 92,683,848 | 75,969,797
Effects of dilution from stock options | 811,818 | 951,920 | 221,846
Weighted average number of outstanding shares adjusted for the effect of dilution | 94,103,298 | 93,635,768 | 76,191,643
Basic earnings per share (R$) | R$ 2.39 | R$ 3.15 | R$ 2.03
Diluted earnings per share (R$) | R$ 2.37 | R$ 3.12 | R$ 2.02

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- Definition The weighted average number of ordinary shares outstanding plus the weighted average number of ordinary shares that would be issued on the conversion of all the dilutive potential ordinary shares into ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2021-01-01 -Paragraph 70 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&anchor=para_70_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition Adjustment to profit (loss) for non-participating preference share dividends to calculate profit (loss) attributable to ordinary equity holders of the parent entity. [Refer: Preference shares [member]; Profit (loss)] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 33 -IssueDate 2021-01-01 -Section Example 12 Calculation and presentation of basic and diluted earnings per share (comprehensive example) -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&doctype=Illustrative%20Examples&dita_xref=IAS33_ex12_TI -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 33 -IssueDate 2021-01-01 -Paragraph 70 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&anchor=para_70_a&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator) divided by the weighted average number of ordinary shares outstanding during the period (the denominator). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2021-01-01 -Paragraph 66 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&anchor=para_66&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2021-01-01 -Paragraph 67 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&anchor=para_67&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator), divided by the weighted average number of ordinary shares outstanding during the period (the denominator), both adjusted for the effects of all dilutive potential ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2021-01-01 -Paragraph 66 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&anchor=para_66&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2021-01-01 -Paragraph 67 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&anchor=para_67&doctype=Standard -URIDate 2021-03-24 + Details
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