XML 94 R67.htm IDEA: XBRL DOCUMENT v3.8.0.1
Financial investments (Details 1) - BRL (R$)
R$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Financial investments [Abstract]    
Short-term investment R$ 210,103 R$ 131,239
Total R$ 210,103 R$ 131,239