| Name | IAS | http://www.xbrl.org/2009/role/commonPracticeRef |
| Number | 1 | http://www.xbrl.org/2009/role/commonPracticeRef |
| IssueDate | 2018-01-01 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Paragraph | 117 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Subparagraph | b | http://www.xbrl.org/2009/role/commonPracticeRef |
| URI | http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_117_b&doctype=Standard | http://www.xbrl.org/2009/role/commonPracticeRef |
| URIDate | 2018-03-16 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Note | Expiry date 2021-01-01 | http://www.xbrl.org/2003/role/disclosureRef |
| Name | IFRS | http://www.xbrl.org/2003/role/disclosureRef |
| Number | 4 | http://www.xbrl.org/2003/role/disclosureRef |
| IssueDate | 2018-01-01 | http://www.xbrl.org/2003/role/disclosureRef |
| Paragraph | 37 | http://www.xbrl.org/2003/role/disclosureRef |
| Subparagraph | a | http://www.xbrl.org/2003/role/disclosureRef |
| URI | http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=4&date=2018-03-02&anchor=para_37_a&doctype=Standard&book=b | http://www.xbrl.org/2003/role/disclosureRef |
| URIDate | 2018-03-16 | http://www.xbrl.org/2003/role/disclosureRef |