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Note 15 - Property, Plant, and Equipment
 12 Months Ended
Dec. 31, 2017
Statement Line Items [Line Items]  
Disclosure of property, plant and equipment [text block]
15
Property, plant and equipment
 
Cost   Land and buildings     Mine development, infrastructure and other     Exploration and Evaluation assets     Plant and equipment     Fixtures and fittings     Motor vehicles     Total  
Balance at January 1, 2016    
7,989
      
31,158
      
6,224
      
20,626
      
1,277
      
2,069
      
69,343
  
Additions
**
    
-
      
*17,545
      
739
      
572
      
73
      
230
      
19,159
  
Disposals and scrappings    
-
      
-
      
-
      
-
      
(502
 )    
(55
 )    
(557
 )
Reallocations between asset classes    
361
      
(3,699
 )    
-
      
3,338
      
-
      
-
      
-
  
Foreign exchange movement    
17
      
74
      
4
      
-
      
28
      
11
      
134
  
Balance at December 31, 2016    
8,367
      
45,078
      
6,967
      
24,536
      
876
      
2,255
      
88,079
  
Balance at January 1, 2017    
8,367
      
45,078
      
6,967
      
24,536
      
876
      
2,255
      
88,079
  
Additions
**
    
-
      
*17,464
      
-
      
3,377
      
36
      
72
      
20,949
  
Impairments    
-
      
-
      
-
      
(12
 )    
-
      
-
      
(12
 )
Disposals and scrappings    
-
      
-
      
-
      
-
      
-
      
(2
 )    
(2
 )
Reallocations between asset classes    
1,051
      
(1,051
 )    
-
      
(20
 )    
20
      
-
      
-
  
Foreign exchange movement    
16
      
7
      
-
      
-
      
11
      
4
      
38
  
Balance at December 31, 2017    
9,434
      
61,498
      
6,967
      
27,881
      
943
      
2,329
      
109,052
  
 
There are commitments to purchase plant and equipment totalling
$2,125
(
2016:
$2,122
) at year end.
 
* Included in additions to mine development, infrastructure and other assets is an amount of
$218
(
2016:
$557
) relating to rehabilitation asset capitalised refer note
22.
** Included in additions is an amount of
$19,556
(
2016:
$17,731
) relating to capital work in progress (“CWIP”) and contains
$155
(
2016:$103
) of borrowing costs capitalized from the term loan. As at year end
$48,943
of CWIP was included in the closing balance (
2016:
$34,086
).
 
    Land and buildings     Mine development, infrastructure and other     Exploration and Evaluation assets     Plant and equipment     Fixtures and fittings     Motor vehicles     Total  
Accumulated depreciation and Impairment losses                                                        
Balance at January 1, 2016    
2,321
      
3,781
      
-
      
11,524
      
996
      
1,503
      
20,125
  
Disposals and scrappings    
-
      
-
      
-
      
-
      
(502
 )    
(8
 )    
(510
 )
Impairments    
-
      
-
      
-
      
-
      
20
      
-
      
20
  
Depreciation for the year    
629
      
699
      
-
      
1,705
      
106
      
352
      
3,491
  
Foreign exchange movement    
-
      
61
      
-
      
-
      
22
      
(3
 )    
80
  
Balance at December 31, 2016    
2,950
      
4,541
      
-
      
13,229
      
642
      
1,844
      
23,206
  
Balance at January 1, 2017    
2,950
      
4,541
      
-
      
13,229
      
642
      
1,844
      
23,206
  
Depreciation for the year    
686
      
631
      
-
      
2,153
      
115
      
178
      
3,763
  
Foreign exchange movement    
-
      
-
      
-
      
-
      
4
      
1
      
5
  
Balance at December 31, 2017    
3,636
      
5,172
      
-
      
15,382
      
761
      
2,023
      
26,974
  
                                                         
Carrying amounts                                                        
At December 31, 2016    
5,417
      
40,537
      
6,967
      
11,307
      
234
      
411
      
64,873
  
At December 31, 2017    
5,798
      
56,326
      
6,967
      
12,499
      
182
      
306
      
82,078
  
 
Economic recovery
 
Items of Property, plant and equipment depreciated over the LoMP are depreciated inclusive of inferred resources included in the LoMP. These inferred resources are included in the calculation when the economic recovery thereof is demonstrated by the achieved recovered grade relative to the mine’s pay limit for the period
2006
to
2016.
The pay limit has ranged from
2.3
g/t in
2008
to
1.9
g/t in
2017
while the recovered grade has ranged from
4.0
g/t to
3.42
g/t over the period. All-in-sustaining-cost
*
has remained consistently below the gold price received over this period resulting in economic recovery of the inferred resources.
 
* All-in sustaining cost (“AISC”) per ounce
, is calculated as the on-mine cost per ounce to produce gold (which includes production costs before intercompany eliminations and exploration costs)
plus
royalty paid, additional costs incurred outside the mine (i.e. at offices in Harare, Johannesburg, London and Jersey), costs associated with maintaining the operating infrastructure and resource base that are required to maintain production at the current levels (sustaining capital investment), the share-based expense arising from the LTIP less silver by-product revenue and the export incentive credit