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Note 26 - Acquisition of subsidiaries (Details Textual) - Garrett [member] $ in Millions	Sep. 30, 2017 USD ($)
Statement Line Items [Line Items]
Percentage of voting equity interests acquired	100.00%
Total consideration transferred, acquisition-date fair value	$ 10.4

X

- Definition

The fair value, at acquisition date, of the consideration transferred in a business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2017-01-01
-Paragraph B64
-Subparagraph f
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-URIDate 2017-03-09

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- Definition

The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2017-01-01
-Paragraph B64
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-URIDate 2017-03-09

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