| 14. | Trade accounts payable |
| Year ended December 31, | ||||||||||||
| 2016 | 2017 | 2017 | ||||||||||
| BRL | BRL | USD | ||||||||||
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Trade accounts payable - domestic |
R$ | 315,072 | R$ | 339,634 | US$ | 102,671 | ||||||
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Trade accounts payable - foreign |
20,358 | 26,201 | 7,920 | |||||||||
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Total trade accounts payable |
R$ | 335,430 | R$ | 365,835 | US$ | 110,591 | ||||||
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Information about the Company’s exposure to currency and liquidity risks is included in note 19.