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Summary of significant accounting policies (Details Textual)	12 Months Ended
	Dec. 31, 2017
Disclosure of significant accounting policies [Abstract]
Amortisation method, intangible assets other than goodwill	straight–line method
Useful lives or amortisation rates, intangible assets other than goodwill	5 Years

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- References

No definition available.

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- Definition

The amortisation method used for intangible assets other than goodwill with finite useful lives. [Refer: Intangible assets other than goodwill; Depreciation and amortisation expense]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 38
-IssueDate 2017-01-01
-Paragraph 118
-Subparagraph b
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-URIDate 2017-03-09

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- Definition

The useful lives or amortisation rates used for intangible assets other than goodwill. [Refer: Intangible assets other than goodwill]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 38
-IssueDate 2017-01-01
-Paragraph 118
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2017-03-01&anchor=para_118_a&doctype=Standard
-URIDate 2017-03-09

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