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19 SHAREHOLDERS' EQUITY (Details 2) - BRL (R$) R$ / shares in Units, R$ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018
Treasury share purchased		7,409,500
Amount paid for treasury share		R$ 58,264	R$ 58,264
Treasury share market price	[1]	R$ 104,548
Bottom of Range [Member]
Share price		R$ 4.48
Average [Member]
Share price		7.86
Top of Range [Member]
Share price		R$ 10.07
[1] The average quotation as of December 31, 2019 in the amount R$ 14.11 per share was used.

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An entity’s own equity instruments, held by the entity or other members of the consolidated group.

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