CASH AND CASH EQUIVALENTS (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended
Mar. 31, 2018	Dec. 31, 2017
Statements Line Items
Restricted cash		$ 1,000
Payment of letter of credit to owner of Las Torres Facility	$ 500

The amount of current restricted cash and cash equivalents. [Refer: Restricted cash and cash equivalents]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_55&doctype=Standard
-URIDate 2018-03-16

Name:	ifrs-full_CurrentRestrictedCashAndCashEquivalents
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant