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Note 22 - Provisions | 12 Months Ended
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Dec. 31, 2017
Statement Line Items [Line Items] |
Disclosure of provisions [text block] |
22 |  | Provisions
Site restoration Site restoration relates to the estimated cost of closing down the mines and represents the site and environmental restoration costs, estimated to be paid throughout the period up until closure due to areas of environmental disturbance present at the reporting date as a result of mining activities. In the case of Blanket Mine the costs of site restoration are discounted based on the estimated life of mine. The Eersteling mine is under care and maintenance and the provision is not discounted. Site restoration costs at Blanket mine are capitalised to mineral properties depreciated at initial recognition and amortised systematically over the estimated life of the mine for costs relating to the decommissioning of property, plant and equipment.
Reconciliation of site restoration provision |  | 2017 |  |  | 2016 |
Balance at January 1 |  |  | 3,456 |  |  |  | 2,762 |
Foreign exchange movement |  |  | 62 |  |  |  | 80 |
Unwinding of discount |  |  | 25 |  |  |  | 25 |
Rehabilitation performed |  |  | (22 | ) |  |  | - |
Change in estimate during the year |  |  |  |  |  |  |  |
- adjusted through profit or loss |  |  | 58 |  |  |  | 32 |
- adjustment capitalised in Property, plant and equipment |  |  | 218 |  |  |  | 557 |
Balance at December 31 |  |  | 3,797 |  |  |  | 3,456 |
The discount rates currently applied in the calculation of the net present value of the Blanket mine provision is 0.64% ( 2016: 0.86% ), based on a risk free rate and cash flows estimated at 0% inflation ( 2016: 0% ). The gross rehabilitation costs before discounting amounted to $3,354 ( 2016: $3,159; 2015: $3,006 ) for Blanket mine and $669 ( 2016: $571 ) for Eersteling mine.

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- Definition The disclosure of provisions. [Refer: Provisions] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_10_e&doctype=Standard -URIDate 2017-03-09 + Details
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