Note 29 - Related Party Transactions and Key Management Personnel Remuneration (Details Textual)	Mar. 31, 2019	Mar. 31, 2018
Key management personnel of entity or parent [member] \| Restricted share grants and performance bonus grants [member]
Statement Line Items [Line Items]
Number of other equity instruments outstanding in share-based payment arrangement at end of period	669,688	1,774,094

The number of other equity instruments (ie other than share options) outstanding in a share-based payment arrangement.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 2
-IssueDate 2017-01-01
-Paragraph 45
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2017-03-01&anchor=para_45&doctype=Standard
-URIDate 2017-03-09

Name:	ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant