XML 185 R165.htm IDEA: XBRL DOCUMENT v3.21.1
23. FINANCIAL INSTRUMENTS AND RISK MANAGEMENT (Details Narrative) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Financial Instruments And Risks Management    
Risk policy validity 1 year  
Financial investment R$ 100,000  
Percentage of long term gross debt 93.66% 82.50%
Gain (loss) in financial results R$ 579,946 R$ (189,816)
Time value of the foreign exchange option 6,251  
Time value of the commodity option R$ 6,178