v3.26.1
Note 8 - Acquisitions (Details Textual)
Jun. 10, 2025
USD ($)
Apr. 02, 2025
USD ($)
Aug. 06, 2024
USD ($)
Jul. 10, 2024
USD ($)
$ / shares
shares
May 01, 2024
USD ($)
Dec. 31, 2025
$ / shares
Jul. 09, 2025
shares
Dec. 31, 2024
$ / shares
Business Combination [Line Items]                
Common stock, par value per share | $ / shares           $ 0.01   $ 0.01
Balance of the Equity | shares             207,945  
Issuance paid | shares             11,216  
Highgold Acquisition [Member]                
Business Combination [Line Items]                
Asset acquisition, total consideration       $ 35,000,000        
Asset acquisition, consideration in shares       33,800,000        
Asset acquisition, consideration in direct transactions costs       $ 1,200,000        
Avidian Gold Corp. [Member]                
Business Combination [Line Items]                
Asset acquisition, total consideration     $ 2,100,000          
Asset acquisition, consideration in shares     1,700,000          
Asset acquisition, cash consideration     400,000          
Contingent payable     1,000,000          
Asset acquisition, liability recognized for deferred consideration     0          
Asset Acquisition, recognized amount for deferred consideration     $ 0          
HighGold Acquisition [Member]                
Business Combination [Line Items]                
Outstanding equity interests acquired         100.00%      
Agreement date         May 01, 2024      
HighGold Acquisition [Member] | Contango Shareholders [Member]                
Business Combination [Line Items]                
Shareholders ownership percentage       85.90%        
Avidian Gold Corp. [Member]                
Business Combination [Line Items]                
Percentage of Ownership Purchase         100.00%      
Initial consideration         $ 2,400,000      
Contingent payment         $ 1,000,000      
Acquisition date     Aug. 06, 2024          
Total equity value     $ 1,663,539          
Shares withheld at closing     207,945          
Cash consideration     400,000          
Initial purchase price     2,063,539          
Contango Mining Canada Inc. [Member] | HighGold Acquisition [Member]                
Business Combination [Line Items]                
Shareholders ownership percentage in combined company       14.10%        
Deposit [Member] | Avidian Gold Corp. [Member]                
Business Combination [Line Items]                
Cash consideration     50,000          
Due on Settlement of Withholding Contingency [Member] | Avidian Gold Corp. [Member]                
Business Combination [Line Items]                
Cash consideration $ 100,000 $ 50,000            
Shares to be paid upon settlement of withholding contingency     150,000          
Due on or Before the 6-month Anniversary [Member] | Avidian Gold Corp. [Member]                
Business Combination [Line Items]                
Cash consideration     $ 200,000          
Common Stock [Member] | HighGold Acquisition [Member]                
Business Combination [Line Items]                
Exchange ratio       0.019        
Common stock, par value per share | $ / shares       $ 0.01        
Shares issued | shares       1,698,887        
Value of share       $ 33,800,000