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Note 17 - Exploration and Evaluation Assets - Exploration and Evaluation Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Statement Line Items [Line Items]    
Balance at beginning of period $ 17,579 $ 8,648
- Mining claims acquired 73,198 7,844
- Consumables and drilling 1,005 1,206
- Contractor 2 4
- Labour 488 308
- Power 7 36
Impairment * 0 (467) [1]
Decommissioning asset estimation adjustment 1,618  
- Other 375  
Balance 94,272 17,579
Bilboes [member]    
Statement Line Items [Line Items]    
Balance at beginning of period 0 0
- Mining claims acquired 73,198 0
- Consumables and drilling 0 0
- Contractor 0 0
- Labour 0 0
- Power 0 0
Impairment * [1]   0
Decommissioning asset estimation adjustment 0  
- Other 375  
Balance 73,573 0
Motapa [member]    
Statement Line Items [Line Items]    
Balance at beginning of period 7,844 0
- Mining claims acquired 0 7,844
- Consumables and drilling 903 0
- Contractor 2 0
- Labour 377 0
- Power 0 0
Impairment * [1]   0
Decommissioning asset estimation adjustment 1,466  
- Other 0  
Balance 10,592 7,844
Maligreen [member]    
Statement Line Items [Line Items]    
Balance at beginning of period 5,626 4,196
- Mining claims acquired 0 0
- Consumables and drilling 102 1,170
- Contractor 0 0
- Labour 111 260
- Power 7 0
Impairment * [1]   0
Decommissioning asset estimation adjustment 152  
- Other 0  
Balance 5,998 5,626
Connemara North [member]    
Statement Line Items [Line Items]    
Balance at beginning of period 0 463
- Mining claims acquired 0 0
- Consumables and drilling 0 0
- Contractor 0 4
- Labour 0 0
- Power 0 0
Impairment * [1]   (467)
Decommissioning asset estimation adjustment 0  
- Other 0  
Balance 0 0
GG [member]    
Statement Line Items [Line Items]    
Balance at beginning of period 3,723 3,618
- Mining claims acquired 0 0
- Consumables and drilling 0 36
- Contractor 0 0
- Labour 0 37
- Power 0 32
Impairment * [1]   0
Decommissioning asset estimation adjustment 0  
- Other 0  
Balance 3,723 3,723
Sabiwa [member]    
Statement Line Items [Line Items]    
Balance at beginning of period 294 290
- Mining claims acquired 0 0
- Consumables and drilling 0 0
- Contractor 0 0
- Labour 0 0
- Power 0 4
Impairment * [1]   0
Decommissioning asset estimation adjustment 0  
- Other 0  
Balance 294 294
Abercorn [member]    
Statement Line Items [Line Items]    
Balance at beginning of period 27 16
- Mining claims acquired 0 0
- Consumables and drilling 0 0
- Contractor 0 0
- Labour 0 11
- Power 0 0
Impairment * [1]   0
Decommissioning asset estimation adjustment 0  
- Other 0  
Balance 27 27
Valentine [member]    
Statement Line Items [Line Items]    
Balance at beginning of period 65 65
- Mining claims acquired 0 0
- Consumables and drilling 0 0
- Contractor 0 0
- Labour 0 0
- Power 0 0
Impairment * [1]   0
Decommissioning asset estimation adjustment 0  
- Other 0  
Balance $ 65 $ 65
[1] Caledonia completed sufficient work to establish that the potential orebody at the Connemara North property would not meet Caledonia’s requirements in terms of size, grade and width. Accordingly, Caledonia did not exercise the option to acquire the property. The costs have been impaired to $Nil.