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Share-based Payments - Summary of Changes in the Number of Stock Options and the Weighted-Average Exercise Price (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Beginning	353,325	316,949
Granted	372,023	353,325
Expired	256,543	312,181
Exercised	96,782	4,768
Ending	372,023	353,325
11th grant [member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Beginning		316,949
Expired		312,181
Exercised		4,768
12th grant [member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Beginning	353,325
Granted		353,325
Expired	256,543
Exercised	96,782
Ending		353,325
13th Grant [member]
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Granted	372,023
Ending	372,023

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+ References

No definition available.

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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
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-IssueDate 2019-01-01
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- Definition

The number of share options exercised in a share-based payment arrangement.

+ References

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-Name IFRS
-Number 2
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-Paragraph 45
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- Definition

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+ References

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-Paragraph 45
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