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Bank loans (Details Textual)	Dec. 31, 2018	Dec. 31, 2017
Bottom of range [member]
Disclosure Of Bank Loans [Line Items]
Borrowings, interest rate	(1.15%)
Top of range [member]
Disclosure Of Bank Loans [Line Items]
Borrowings, interest rate		3.13%

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- Definition

The interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2018-01-01
-Paragraph 7
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_7&doctype=Standard
-URIDate 2018-03-16

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