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13. INTANGIBLE ASSETS (Details Narrative) | 12 Months Ended
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Dec. 31, 2020 BRL (R$)
Assets held for sale [member] |
Disclosure of detailed information about intangible assets [line items] |
Transfer of intangible assets | R$ 6,970
Cash-Generating Units [Member] |
Disclosure of detailed information about intangible assets [line items] |
Cash generating units percentage | 3.25%
Cash-Generating Units [Member] | Bottom of range [member] |
Disclosure of detailed information about intangible assets [line items] |
Discounted cash flows percentage | 11.21%
Cash-Generating Units [Member] | Top Of Range [member] |
Disclosure of detailed information about intangible assets [line items] |
Discounted cash flows percentage | 13.22%

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