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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%