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Note 11 - Investments in Unconsolidated Entities (Details Textual) | 12 Months Ended
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Dec. 31, 2024 USD ($) QuarterlyInvestment | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Disclosure of unconsolidated structured entities [line items] |  |  |
Share of net loss of equity-accounted investees | $ (2,000) | $ 0 | $ (6,000)
Weighted average cost of capital, measurement input [member] |  |  |
Disclosure of unconsolidated structured entities [line items] |  |  |
Significant unobservable input, assets | 0.14 |  |
OPay Digital Services Limited [member] |  |  |
Disclosure of unconsolidated structured entities [line items] |  |  |
Proportion of ownership interest in entity classified as financial asset | 9.40% |  |
Probability-weighted present value | $ 3,000,000,000 | $ 3,000,000,000 |
Shares valuation, net reduction of value, percent |  | 6.00% |
Change in fair value of preferred shares | $ 4,900,000 |  |
Discount rate applied to present value of cash flows | 18.90% |  |
OPay Digital Services Limited [member] | Weighted average cost of capital, measurement input [member] |  |  |
Disclosure of unconsolidated structured entities [line items] |  |  |
Significant unobservable input, assets | 0.189 | 0.189 |
OPay Digital Services Limited [member] | Discount rate, measurement input [member] |  |  |
Disclosure of unconsolidated structured entities [line items] |  |  |
Significant unobservable input, assets | 10 | 10 |
OPay Digital Services Limited [member] | Long term stable growth rate [member] |  |  |
Disclosure of unconsolidated structured entities [line items] |  |  |
Significant unobservable input, assets | 0.07 |  |
Explanation of period over which revenue is expected to grow | In the discounted cash flow analysis, revenue was estimated to grow at an annualized rate of 37% over the 2024-2031 period, and thereafter reaching a long-term growth rate of 7%. |  |
Annualized growth rate of revenue | 37.00% |  |
OPay Digital Services Limited [member] | Bottom of range [member] |  |  |
Disclosure of unconsolidated structured entities [line items] |  |  |
Estimated future equity values | $ 200,000,000 |  |
Estimated future equity values, number of years | 1 year |  |
Estimated Present Equity Values | $ 100,000,000 |  |
OPay Digital Services Limited [member] | Top of range [member] |  |  |
Disclosure of unconsolidated structured entities [line items] |  |  |
Estimated future equity values | $ 6,000,000,000 |  |
Estimated future equity values, number of years | 3 years |  |
Estimated Present Equity Values | $ 4,200,000,000 |  |
Verda Ventures [Member] |  |  |
Disclosure of unconsolidated structured entities [line items] |  |  |
Invested amount | $ 1,250,000 |  |
Number of equal quarterly investments committed | QuarterlyInvestment | 7 |  |
Investment commitment | $ 10,000,000 |  |
Share of net loss of equity-accounted investees | $ 2,000 |  |
nHorizon [member] |  |  |
Disclosure of unconsolidated structured entities [line items] |  |  |
Proportion of ownership interest in associate | 29.10% |  |
Unrecognized income (loss) from associates | $ 31,000 |  |
Accumulated balance of unrecognized share of losses in associates | 200,000 |  |
AB Fjord Bank [member] |  |  |
Disclosure of unconsolidated structured entities [line items] |  |  |
Proceeds from sales of financial assets | $ 800,000 |  |

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