XML 28 R14.htm IDEA: XBRL DOCUMENT  v2.3.0.11
Cash and cash equivalents
3 Months Ended
Mar. 31, 2011
Cash and cash equivalents [Abstract]  
Cash and cash equivalents
7   Cash and cash equivalents
                 
         March 31,
2011
    December 31,
2010
 
    (unaudited)          
Cash
    923       560  
Short-term investments
    10,348       7,024  
 
           
 
    11,271       7,584  
 
           
    All the above mentioned short-term investments are made through the use of low risk fixed income securities, in a way that: those denominated in Brazilian Reais are concentrated in investments indexed to the CDI, and those denominated in US dollars are mainly time deposits, with the original due date less than three months.