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23. SHAREHOLDERS' EQUITY (Details 2) - BRL (R$) R$ / shares in Units, R$ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019
Disclosure of classes of share capital [line items] |  |  |
Quantity purchased (in units) |  | 7,409,500 |
Amount paid for the shares |  | R$ 58,264 | R$ 58,264
Treasury share market price | [1] | R$ 235,993 |
Bottom of range [member] |  |  |
Disclosure of classes of share capital [line items] |  |  |
Share price |  | R$ 4.48 |
Top of range [member] |  |  |
Disclosure of classes of share capital [line items] |  |  |
Share price |  | 10.07 |
Average [member] |  |  |
Disclosure of classes of share capital [line items] |  |  |
Share price |  | R$ 7.86 |
[1] | The average share price on December 31, 2020 was used in the amount of R$31.85 per share.

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