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Note 18 - Exploration and Evaluation Assets - Exploration and Evaluation Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Statement Line Items [Line Items] |  |  |  |  |
Balance |  | $ 7,139 | [1] | $ 6,967 |
- Consumables and drilling |  | 189 |  | 3 |
- Contractor |  |  |  | 93 |
- Labour |  | 46 |  | 40 |
- Power |  | 24 |  | 36 |
- Option payments |  | 2,800 |  |  |
Reallocate to assets held for sale (note 21.1) ~ | [2] | (500) |  |  |
Impairment ~ | [2] | (2,930) |  |  |
Balance |  | 6,768 |  | 7,139 | [1]
Glen Hume [Member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Balance |  |  |  |  |
- Consumables and drilling |  | 161 |  |  |
- Contractor |  |  |  |  |
- Labour |  |  |  |  |
- Power |  |  |  |  |
- Option payments |  | 2,500 |  |  |
Reallocate to assets held for sale (note 21.1) ~ | [2] |  |  |  |
Impairment ~ | [2] |  |  |  |
Balance |  | 2,661 |  |  |
Connemara North [Member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Balance |  |  |  |  |
- Consumables and drilling |  |  |  |  |
- Contractor |  |  |  |  |
- Labour |  |  |  |  |
- Power |  |  |  |  |
- Option payments |  | 300 |  |  |
Reallocate to assets held for sale (note 21.1) ~ | [2] |  |  |  |
Impairment ~ | [2] |  |  |  |
Balance |  | 300 |  |  |
GG [member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Balance |  | 3,441 |  | 3,347 |
- Consumables and drilling |  | 28 |  | 6 |
- Contractor |  |  |  | 36 |
- Labour |  | 35 |  | 32 |
- Power |  | 19 |  | 20 |
- Option payments |  |  |  |  |
Reallocate to assets held for sale (note 21.1) ~ | [2] |  |  |  |
Impairment ~ | [2] |  |  |  |
Balance |  | 3,523 |  | 3,441 |
Eagle Vulture, Mascot and Penzance [member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Balance |  | 3,416 |  | 3,344 |
- Consumables and drilling |  |  |  | (3) |
- Contractor |  |  |  | 57 |
- Labour |  | 11 |  | 8 |
- Power |  | 3 |  | 10 |
- Option payments |  |  |  |  |
Reallocate to assets held for sale (note 21.1) ~ | [2] | (500) |  |  |
Impairment ~ | [2] | (2,930) |  |  |
Balance |  |  |  | 3,416 |
Sabiwa [member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Balance |  | 282 |  | 276 |
- Consumables and drilling |  |  |  |  |
- Contractor |  |  |  |  |
- Labour |  |  |  |  |
- Power |  | 2 |  | 6 |
- Option payments |  |  |  |  |
Reallocate to assets held for sale (note 21.1) ~ | [2] |  |  |  |
Impairment ~ | [2] |  |  |  |
Balance |  | $ 284 |  | $ 282 |
[1] | The Group voluntarily changed its disclosure policy for exploration and evaluation assets to be disclosed separately as Exploration and evaluation assets rather than as part of Property, plant and equipment; similarly lease liabilities were classified separately from trade and other payables (refer to note 4(b)(i) and 4(b)(ii)). The new disclosure policies were adopted from December, 2020 and have been applied retrospectively.
[2] | Management determined the fair value of Eagle Vulture, Mascot and Penzance as the future sale price as agreed by independent parties in the sale contract that amounted to $500. The carrying amount of Eagle Vulture, Mascot and Penzance before the impairment was $3,430 and the write down resulted in an impairment expense of $2,930. The $500 carrying value was reallocated to Assets held for sale in December, 2020.

X
- Definition The amount of decrease in exploration and evaluation assets from reclassification to assets held for sale. + References No definition available. + Details
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- Definition The amount of impairment loss recognised in profit or loss for exploration and evaluation assets. + References No definition available. + Details
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- Definition The amount of assets arising from the search for mineral resources, including minerals, oil, natural gas and similar non-regenerative resources after the entity has obtained legal rights to explore in a specific area, as well as the determination of the technical feasibility and commercial viability of extracting the mineral resource. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 6 -IssueDate 2020-01-01 -Paragraph 24 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=6&code=ifrs-tx-2020-en-r&anchor=para_24_b&doctype=Standard -URIDate 2020-01-01 + Details
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