Note 15 - Financial Assets and Financial Liabilities (Details Textual) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
OPay Limited [member]
Statement Line Items [Line Items]
Investments in associates reported in separate financial statements	$ 253.3	$ 86.1
AB Fjord Bank [member] \| Ordinary shares [member]
Statement Line Items [Line Items]
Investments in associates reported in separate financial statements	$ 0.9	$ 0.9

The amount of investments in associates in an entity's separate financial statements. [Refer: Associates [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2023-01-01
-Paragraph 10
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2023-en-r&anchor=para_10&doctype=Standard
-URIDate 2023-03-23

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant