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Note 17 - Commitments (Details Textual) |  |  |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Dec. 07, 2022 USD ($) | Dec. 14, 2012 USD ($) | Nov. 15, 2011 | May 31, 2024 CAD ($) | Dec. 31, 2023 CAD ($) | May 31, 2023 CAD ($) | Dec. 31, 2022 CAD ($) | Dec. 31, 2022 BRL (R$) | May 31, 2019 BRL (R$) | Sep. 30, 2018 BRL (R$) | Dec. 31, 2022 USD ($) | Nov. 30, 2022 CAD ($)
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Low-value assets |  |  |  |  |  |  |  |  |  |  |  | $ 21,000
Short-term leases assets |  |  |  |  |  |  |  |  |  |  |  | $ 79,000
Jarbas agreement, exploration licenses [member] |  |  |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Purchase of intangible assets |  |  |  |  |  |  |  |  |  |  | $ 628,660 |
Altoro agreement, exploration licenses [member] |  |  |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Purchase of intangible assets |  | $ 850,000 |  |  |  |  |  |  |  |  |  |
Payments to counterparty upon ANM granting mining license over exploration concession |  | $ 650,000 |  |  |  |  |  |  |  |  |  |
Surfacec rights lease payment [member] |  |  |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Option agreement, option payment |  |  |  |  |  |  | $ 55,000 |  |  |  |  |
Surface rights lease payment agreement on November 18, 2016 [member] |  |  |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Option agreement, option payment | $ 650,000 |  |  | $ 162,500 | $ 162,500 | $ 162,500 | 162,500 |  |  |  |  |
Boa Vista Gold Inc. [member] |  |  |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Payments to counterparty | R$ |  |  |  |  |  |  |  |  | R$ 400,000 | R$ 3,620,000 |  |
Boa Vista Gold Inc. [member] | Mineral rights agreement [member] |  |  |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Payments to counterparty |  |  |  |  |  |  | $ 832,000 | R$ 3,220,000 |  |  |  |
D'Gold [member] |  |  |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Proportion of ownership interest in joint venture |  |  |  |  |  |  |  |  |  |  |  | 84.05%
Net smelter return royalty, percentage |  |  | 1.50% |  |  |  |  |  |  |  |  |
D'Gold [member] | Additional payable if holdings drop below 10% [member] |  |  |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net smelter return royalty, percentage |  |  | 1.50% |  |  |  |  |  |  |  |  |

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