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Note 17 - Trade Receivables, Net (Tables) | 12 Months Ended
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Dec. 31, 2019
Statement Line Items [Line Items] |
Disclosure of detailed information about current trade receivables [text block] |
|  | Year ended December 31,
|  | 2019 |  | 2018
Current accounts |  |  | 1,387,494 |  |  |  | 1,778,796 |
Receivables from related parties |  |  | 9,448 |  |  |  | 25,105 |
|  |  | 1,396,942 |  |  |  | 1,803,901 |
Allowance for doubtful accounts (see Note 23 (i)) |  |  | (48,782 | ) |  |  | (66,535 | )
|  |  | 1,348,160 |  |  |  | 1,737,366 |
Disclosure if detailed information about the aging of trade receivables [text block] |
|  |  |  |  |  |  |  |  |  |  | Past due |
|  |  | Trade Receivables |  |  |  | Not Due |  |  |  | 1 - 180 days |  |  |  | >180 days |
At December 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Guaranteed |  |  | 234,427 |  |  |  | 205,764 |  |  |  | 26,899 |  |  |  | 1,764 |
Not guaranteed |  |  | 1,162,515 |  |  |  | 948,449 |  |  |  | 157,960 |  |  |  | 56,106 |
Guaranteed and not guaranteed |  |  | 1,396,942 |  |  |  | 1,154,213 |  |  |  | 184,859 |  |  |  | 57,870 |
Expected loss rate |  |  | 0.09 | % |  |  | 0.04 | % |  |  | 0.24 | % |  |  | 0.57 | %
Allowances for doubtful accounts |  |  | (1,294 | ) |  |  | (529 | ) |  |  | (455 | ) |  |  | (310 | )
Nominative allowances for doubtful accounts |  |  | (47,488 | ) |  |  | - |  |  |  | (1,922 | ) |  |  | (45,566 | )
Net Value |  |  | 1,348,160 |  |  |  | 1,153,684 |  |  |  | 182,482 |  |  |  | 11,994 |
|  |  |  |  |  |  |  |  |  |  | Past due |
|  |  | Trade Receivables |  |  |  | Not Due |  |  |  | 1 - 180 days |  |  |  | >180 days |
At December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Guaranteed |  |  | 286,250 |  |  |  | 254,743 |  |  |  | 30,884 |  |  |  | 623 |
Not guaranteed |  |  | 1,517,651 |  |  |  | 1,180,788 |  |  |  | 260,675 |  |  |  | 76,188 |
Guaranteed and not guaranteed |  |  | 1,803,901 |  |  |  | 1,435,531 |  |  |  | 291,559 |  |  |  | 76,811 |
Expected loss rate |  |  | 0.07 | % |  |  | 0.04 | % |  |  | 0.17 | % |  |  | 0.43 | %
Allowances for doubtful accounts |  |  | (1,396 | ) |  |  | (564 | ) |  |  | (510 | ) |  |  | (322 | )
Nominative allowances for doubtful accounts |  |  | (65,139 | ) |  |  | - |  |  |  | (1,436 | ) |  |  | (63,703 | )
Net Value |  |  | 1,737,366 |  |  |  | 1,434,967 |  |  |  | 289,613 |  |  |  | 12,786 |

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