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v3.19.1

Share-based Payments - Summary of Changes in the Number of Stock Options and the Weighted-Average Exercise Price (Detail) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |
Beginning | 316,949 | 318,506
Granted | 353,325 | 316,949
Expired | 312,181 | 193,094
Exercised | 4,768 | 125,412
Ending | 353,325 | 316,949
Number of shares exercisable | 0 | 0
10th Grant [member] |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |
Beginning |  | 318,506
Expired |  | 193,094
Exercised |  | 125,412
Number of shares exercisable |  | 0
11th grant [member] |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |
Beginning | 316,949 |
Granted |  | 316,949
Expired | 312,181 |
Exercised | 4,768 |
Ending |  | 316,949
Number of shares exercisable | 0 | 0
12th grant [member] |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |
Granted | 353,325 |
Ending | 353,325 |
Number of shares exercisable | 0 |

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- Definition The number of share options outstanding in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2018-01-01 -Paragraph 45 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2018-03-01&anchor=para_45_d&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2018-01-01 -Paragraph 45 -Subparagraph b -Clause i -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2018-03-01&anchor=para_45_b_i&doctype=Standard -URIDate 2018-03-16 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2018-01-01 -Paragraph 45 -Subparagraph b -Clause vi -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2018-03-01&anchor=para_45_b_vi&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The number of share options exercisable in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2018-01-01 -Paragraph 45 -Subparagraph b -Clause vii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2018-03-01&anchor=para_45_b_vii&doctype=Standard -URIDate 2018-03-16 + Details
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