Note 33 - Financial Instruments - Credit Risk (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 21, 2019	Dec. 31, 2018
Statement Line Items [Line Items]
Carrying amount	$ 2,684	$ 5,146	$ 3,649
Zimbabwean operations [member]
Statement Line Items [Line Items]
Carrying amount	1,581	3,123	3,639
Jersey, Channel Islands [member]
Statement Line Items [Line Items]
Carrying amount	1,100	2,003
Other [member]
Statement Line Items [Line Items]
Carrying amount	$ 3	$ 20	$ 10

The amount that best represents the maximum exposure to credit risk without taking into account any collateral held or other credit enhancements (for example, netting agreements that do not qualify for offset in accordance with IAS 32). [Refer: Credit risk [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2020-01-01
-Paragraph 35K
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_35K_a&doctype=Standard
-URIDate 2020-01-01

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2021-01-01
-Name IFRS
-Number 7
-IssueDate 2020-01-01
-Paragraph 36
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_36_a&doctype=Standard&book=b
-URIDate 2020-01-01

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