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Note 13 - Property, Plant and Equipment - Reconciliation of Changes in Property, Plant, and Equipment (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Statement Line Items [Line Items]          
Balance at beginning of period     $ 179,649    
Additions* $ 6,686 $ 9,042 16,122 $ 18,161  
Impairments     0 (878)  
Balance at end of period 183,663   183,663   $ 179,649
Gross carrying amount [member]          
Statement Line Items [Line Items]          
Balance at beginning of period     248,124 233,826 233,826
Additions* [1]     16,122   29,606
Impairments         (908)
Disposals     (131)   (33)
Reallocate to assets held for sale         (14,301)
Reallocations between asset classes     0   0
Foreign exchange movement     90   (66)
Balance at end of period 264,205   264,205   248,124
Disposals     131   33
Accumulated depreciation, amortisation and impairment [member]          
Statement Line Items [Line Items]          
Impairments         (31)
Disposals     97    
Foreign exchange movement     58   (41)
Balance at beginning of period     68,475 54,843 54,843
Depreciation     12,106   14,486
Accumulated depreciation for assets reallocated to assets held for sale         (782)
Disposals     (97)    
Balance at end of period 80,542   80,542   68,475
Land and buildings [member]          
Statement Line Items [Line Items]          
Balance at beginning of period     7,324    
Balance at end of period 6,494   6,494   7,324
Land and buildings [member] | Gross carrying amount [member]          
Statement Line Items [Line Items]          
Balance at beginning of period     16,686 15,194 15,194
Additions* [1]     0   0
Impairments         0
Disposals     0   0
Reallocate to assets held for sale         0
Reallocations between asset classes     0   1,492
Foreign exchange movement     0   0
Balance at end of period 16,686   16,686   16,686
Disposals     (0)   (0)
Land and buildings [member] | Accumulated depreciation, amortisation and impairment [member]          
Statement Line Items [Line Items]          
Impairments         0
Disposals     0    
Foreign exchange movement     0   0
Balance at beginning of period     9,362 8,350 8,350
Depreciation     830   1,012
Accumulated depreciation for assets reallocated to assets held for sale         0
Disposals     0    
Balance at end of period 10,192   10,192   9,362
Right-of-use assets [member]          
Statement Line Items [Line Items]          
Balance at beginning of period     156    
Balance at end of period 63   63   156
Right-of-use assets [member] | Gross carrying amount [member]          
Statement Line Items [Line Items]          
Balance at beginning of period     501 525 525
Additions* [1]     0   0
Impairments         0
Disposals     0   0
Reallocate to assets held for sale         0
Reallocations between asset classes     0   0
Foreign exchange movement     22   (24)
Balance at end of period 523   523   501
Disposals     (0)   (0)
Right-of-use assets [member] | Accumulated depreciation, amortisation and impairment [member]          
Statement Line Items [Line Items]          
Impairments         0
Disposals     0    
Foreign exchange movement     20   (9)
Balance at beginning of period     345 230 230
Depreciation     95   124
Accumulated depreciation for assets reallocated to assets held for sale         0
Disposals     0    
Balance at end of period 460   460   345
Mining assets [member]          
Statement Line Items [Line Items]          
Balance at beginning of period     100,592    
Balance at end of period 109,423   109,423   100,592
Mining assets [member] | Gross carrying amount [member]          
Statement Line Items [Line Items]          
Balance at beginning of period     118,398 82,154 82,154
Additions* [1]     128   0
Impairments         (872)
Disposals     0   0
Reallocate to assets held for sale         0
Reallocations between asset classes     14,048   37,116
Foreign exchange movement     0   0
Balance at end of period 132,574   132,574   118,398
Disposals     (0)   (0)
Mining assets [member] | Accumulated depreciation, amortisation and impairment [member]          
Statement Line Items [Line Items]          
Impairments         (21)
Disposals     0    
Foreign exchange movement     0   0
Balance at beginning of period     17,806 12,368 12,368
Depreciation     5,345   5,459
Accumulated depreciation for assets reallocated to assets held for sale         0
Disposals     0    
Balance at end of period 23,151   23,151   17,806
Assets under construction and decommissioning assets [member]          
Statement Line Items [Line Items]          
Balance at beginning of period     34,842    
Balance at end of period 36,443   36,443   34,842
Assets under construction and decommissioning assets [member] | Gross carrying amount [member]          
Statement Line Items [Line Items]          
Balance at beginning of period     35,628 46,453 46,453
Additions* [1]     15,151   28,276
Impairments         0
Disposals     0   0
Reallocate to assets held for sale         0
Reallocations between asset classes     (13,504)   (39,099)
Foreign exchange movement     24   (2)
Balance at end of period 37,299   37,299   35,628
Disposals     (0)   (0)
Assets under construction and decommissioning assets [member] | Accumulated depreciation, amortisation and impairment [member]          
Statement Line Items [Line Items]          
Impairments         0
Disposals     0    
Foreign exchange movement     0   0
Balance at beginning of period     786 693 693
Depreciation     70   93
Accumulated depreciation for assets reallocated to assets held for sale         0
Disposals     0    
Balance at end of period 856   856   786
Plant and equipment [member]          
Statement Line Items [Line Items]          
Balance at beginning of period     35,625    
Balance at end of period 30,400   30,400   35,625
Plant and equipment [member] | Gross carrying amount [member]          
Statement Line Items [Line Items]          
Balance at beginning of period     71,445 70,485 70,485
Additions* [1]     790   538
Impairments         (36)
Disposals     0   (33)
Reallocate to assets held for sale         0
Reallocations between asset classes     (544)   491
Foreign exchange movement     0   0
Balance at end of period 71,691   71,691   71,445
Disposals     (0)   33
Plant and equipment [member] | Accumulated depreciation, amortisation and impairment [member]          
Statement Line Items [Line Items]          
Impairments         (10)
Disposals     0    
Foreign exchange movement     0   0
Balance at beginning of period     35,820 29,257 29,257
Depreciation     5,471   6,573
Accumulated depreciation for assets reallocated to assets held for sale         0
Disposals     0    
Balance at end of period 41,291   41,291   35,820
Fixtures and fittings [member]          
Statement Line Items [Line Items]          
Balance at beginning of period     606    
Balance at end of period 533   533   606
Fixtures and fittings [member] | Gross carrying amount [member]          
Statement Line Items [Line Items]          
Balance at beginning of period     1,861 1,563 1,563
Additions* [1]     53   335
Impairments         0
Disposals     (3)   0
Reallocate to assets held for sale         0
Reallocations between asset classes     0   0
Foreign exchange movement     41   (37)
Balance at end of period 1,952   1,952   1,861
Disposals     3   (0)
Fixtures and fittings [member] | Accumulated depreciation, amortisation and impairment [member]          
Statement Line Items [Line Items]          
Impairments         0
Disposals     2    
Foreign exchange movement     35   (30)
Balance at beginning of period     1,255 1,100 1,100
Depreciation     131   185
Accumulated depreciation for assets reallocated to assets held for sale         0
Disposals     (2)    
Balance at end of period 1,419   1,419   1,255
Motor vehicles [member]          
Statement Line Items [Line Items]          
Balance at beginning of period     504    
Balance at end of period 307   307   504
Motor vehicles [member] | Gross carrying amount [member]          
Statement Line Items [Line Items]          
Balance at beginning of period     3,605 3,314 3,314
Additions* [1]     0   294
Impairments         0
Disposals     (128)   0
Reallocate to assets held for sale         0
Reallocations between asset classes     0   0
Foreign exchange movement     3   (3)
Balance at end of period 3,480   3,480   3,605
Disposals     128   (0)
Motor vehicles [member] | Accumulated depreciation, amortisation and impairment [member]          
Statement Line Items [Line Items]          
Impairments         0
Disposals     95    
Foreign exchange movement     3   (2)
Balance at beginning of period     3,101 2,845 2,845
Depreciation     164   258
Accumulated depreciation for assets reallocated to assets held for sale         0
Disposals     (95)    
Balance at end of period 3,173   3,173   3,101
Solar plant [member]          
Statement Line Items [Line Items]          
Balance at beginning of period     0    
Balance at end of period 0   0   0
Solar plant [member] | Gross carrying amount [member]          
Statement Line Items [Line Items]          
Balance at beginning of period [2]     0 14,138 14,138
Additions* [1],[2]     0   163
Impairments [2]         0
Disposals [2]     0   0
Reallocate to assets held for sale [2]         (14,301)
Reallocations between asset classes [2]     0   0
Foreign exchange movement [2]     0   0
Balance at end of period [2] 0   0   0
Disposals [2]     (0)   (0)
Solar plant [member] | Accumulated depreciation, amortisation and impairment [member]          
Statement Line Items [Line Items]          
Impairments         0
Disposals     0    
Foreign exchange movement     0   0
Balance at beginning of period     0 $ 0 0
Depreciation     0   782
Accumulated depreciation for assets reallocated to assets held for sale         (782)
Disposals     0    
Balance at end of period $ 0   $ 0   $ 0
[1] Included in additions is the change in estimate for the decommissioning asset of ($722) (2023: $1,962) due to change in the Life of Mine (“LoM”) estimate to 2041.
[2] The solar plant was fully commissioned on February 2, 2023 and the sale agreement between Caledonia Mining Corporation Plc and Caledonia Mining Services (Private) Limited was concluded for the sale of the solar plant. Depreciation on the solar plant commenced on February 2, 2023 and the power purchase agreement, between Caledonia Mining Services (Private) Limited and Blanket Mine, became effective. From September 28, 2023 the solar plant is classified as held for sale. In December 2022, the Caledonia board approved a proposal for Caledonia Mining Services (Private) Limited (which owns the solar plant) to issue loan notes pursuant to a loan note instrument (“bonds”) up to a value of $12 million. The decision was taken in order to optimise the capital structure of the Group and provide additional debt instruments to the Zimbabwean financial market. Refer to note 21.1 for more information on these loan notes.