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Note 26 - Cash Flow Disclosures | 12 Months Ended
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Dec. 31, 2018
Statement Line Items [Line Items] |
Disclosure of cash flow statement [text block] |
| 26 | Cash flow disclosures
|  |  |  | Year ended December 31,
(i) |  |  | Changes in working capital |  | 2018 |  | 2017 |  | 2016
|  |  | Inventories |  |  | (176,443 | ) |  |  | (804,415 | ) |  |  | 244,720 |
|  |  | Receivables and prepayments and Current tax assets |  |  | 30,144 |  |  |  | (4,564 | ) |  |  | 53,639 |
|  |  | Trade receivables |  |  | (517,579 | ) |  |  | (259,375 | ) |  |  | 146,824 |
|  |  | Other liabilities |  |  | (22,984 | ) |  |  | 4,226 |  |  |  | (79,046 | )
|  |  | Customer advances |  |  | 5,976 |  |  |  | 17,039 |  |  |  | (95,112 | )
|  |  | Trade payables |  |  | (57,066 | ) |  |  | 193,905 |  |  |  | 59,939 |
|  |  |  |  |  | (737,952 | ) |  |  | (853,184 | ) |  |  | 330,964 |
(ii) |  |  | Income tax accruals less payments |  |  |  |  |  |  |  |  |  |  |  |
|  |  | Tax accrued |  |  | 229,207 |  |  |  | (17,136 | ) |  |  | 41,441 |
|  |  | Taxes paid |  |  | (170,713 | ) |  |  | (176,853 | ) |  |  | (169,520 | )
|  |  |  |  |  | 58,494 |  |  |  | (193,989 | ) |  |  | (128,079 | )
(iii) |  |  | Interest accruals less payments, net |  |  |  |  |  |  |  |  |  |  |  |
|  |  | Interest accrued |  |  | (2,914 | ) |  |  | (20,534 | ) |  |  | (43,872 | )
|  |  | Interest received |  |  | 40,613 |  |  |  | 50,001 |  |  |  | 60,163 |
|  |  | Interest paid |  |  | (31,548 | ) |  |  | (17,917 | ) |  |  | (18,858 | )
|  |  |  |  |  | 6,151 |  |  |  | 11,550 |  |  |  | (2,567 | )
(iv) |  |  | Cash and cash equivalents |  |  |  |  |  |  |  |  |  |  |  |
|  |  | Cash at banks, liquidity funds and short - term investments |  |  | 428,361 |  |  |  | 330,221 |  |  |  | 399,900 |
|  |  | Bank overdrafts |  |  | (1,644 | ) |  |  | (131 | ) |  |  | (1,320 | )
|  |  |  |  |  | 426,717 |  |  |  | 330,090 |  |  |  | 398,580 |

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