At December 31, 2016 and 2017, respectively, the aging of trade accounts receivable was as follows:
| As at December 31, 2016 | ||||||||||||
| Gross amount | Allowance for doubtful accounts |
Trade accounts receivable, net |
||||||||||
| BRL | BRL | BRL | ||||||||||
|
Not past due |
R$ | 197,631 | R$ | — | R$ | 197,631 | ||||||
|
Past due 1-30 days |
9,497 | — | 9,497 | |||||||||
|
Past due 31-90 days |
3,455 | — | 3,455 | |||||||||
|
Past due 91-120 days |
1,314 | — | 1,314 | |||||||||
|
Past due 120-180 days |
2,097 | — | 2,097 | |||||||||
|
Past due over 180 days |
1,722 | (1,722 | ) | — | ||||||||
|
|
|
|
|
|
|
|||||||
|
Total |
R$ | 215,716 | R$ | (1,722 | ) | R$ | 213,994 | |||||
|
|
|
|
|
|
|
|||||||
| As at December 31, 2017 | ||||||||||||||||
| Gross amount | Allowance for doubtful accounts |
Trade accounts receivable, net |
Trade accounts receivable, net |
|||||||||||||
| BRL | BRL | BRL | USD | |||||||||||||
|
Not past due |
R$ | 109,135 | R$ | (8,199 | ) | R$ | 100,936 | US$ | 30,513 | |||||||
|
Past due 1-30 days |
5,449 | (2,134 | ) | 3,315 | 1,002 | |||||||||||
|
Past due 31-90 days |
5,304 | (3,686 | ) | 1,618 | 489 | |||||||||||
|
Past due 91-120 days |
3,551 | (1,845 | ) | 1,706 | 516 | |||||||||||
|
Past due 120-180 days |
4,278 | (3,108 | ) | 1,170 | 354 | |||||||||||
|
Past due over 180 days |
6,322 | (1,899 | ) | 4,423 | 1,336 | |||||||||||
|
|
|
|
|
|
|
|
|
|||||||||
|
Total |
R$ | 134,039 | R$ | (20,871 | ) | R$ | 113,168 | US$ | 34,210 | |||||||
|
|
|
|
|
|
|
|
|
|||||||||