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Note 33 - Financial Instruments (Tables)
 12 Months Ended
Dec. 31, 2020
Statement Line Items [Line Items]  
Disclosure of credit risk exposure [text block]
Carrying amount     2020       2019      
January 1,
2019
  
                         
Zimbabwe    
1,581
      
3,123
      
3,639
  
Jersey, Channel Islands    
1,100
      
2,003
      
–
  
Other regions    
3
      
20
      
10
  
     
2,684
      
5,146
      
3,649
  
Disclosure of maturity analysis for non-derivative financial liabilities [text block]
December 31, 2020    
Carrying
amount
      
12 months
or less
      
1-3 Years
  
                         
Trade and other payables    
4,622
      
4,622
      
-
  
Term loan facility    
408
      
408
      
-
  
     
5,030
      
5,030
      
-
  
                         
December 31, 2019    
Carrying
amount
      
12 months
or less
      
1-3 Years
  
                         
Trade and other payables    
5,116
      
5,116
      
-
  
Term loan facility    
2,471
      
-
      
2,471
  
     
7,587
      
5,116
      
2,471
  
                         
January 1, 2019    
Carrying
amount
      
12 months
or less
      
1-3 Years
  
                         
Trade and other payables    
7,493
      
7,493
      
-
  
Term loan facility    
5,960
      
-
      
5,960
  
     
13,453
      
7,493
      
5,960
  
Sensitivity analysis for types of market risk [text block]
    2020   2019   January 1, 2019
    $'000   $'000   $'000
    Functional currency   Functional currency   Functional currency
    ZAR   $   ZAR   $   ZAR   $
                                                 
Cash and cash equivalents    
59
      
1,959
      
57
      
4,176
      
57
      
8,147
  
Trade and other receivables    
-
      
249
      
-
      
1,735
      
-
      
126
  
Trade and other payables    
-
      
(174
 )    
-
      
(179
 )    
-
      
(345
 )
Term loan    
-
      
408
      
-
      
(2,471
 )    
-
      
(5,960
 )
Overdraft    
-
      
-
      
-
      
(490
 )    
-
      
-
  
     
59
      
2,442
      
57
      
2,771
      
57
      
1,968
  
    2020   2019   January 1, 2019
    $'000   $'000   $'000
    Functional currency   Functional currency   Functional currency
    ZAR   $   ZAR   $   ZAR   $
                                                 
Cash and cash equivalents    
3
      
103
      
3
      
199
      
3
      
388
  
Trade and other receivables    
-
      
12
      
-
      
82
      
-
      
6
  
Trade and other payables    
-
      
(8
 )    
-
      
9
      
-
      
(16
 )
Term loan    
-
      
19
      
-
      
(117
 )    
-
      
(283
 )
Overdraft    
-
      
-
      
-
      
(23
 )    
-
      
-
  
     
3
      
126
      
3
      
150
      
3
      
95
  
      2020       2019      
January 1,
2019
  
                         
Cash and cash equivalents    
19,092
      
9,383
      
11,187
  
Term loan    
(408
 )    
(2,471
 )    
(5,960
 )
Overdraft    
–
      
(490
 )    
–
  
Sensitivity analysis - Cash and cash equivalents     2020       2019      
January 1,
2019
  
                         
Increase by 100 basis points    
191
      
94
      
111
  
Decrease by 100 basis points    
(191
 )    
(94
 )    
(111
 )
                         
Sensitivity analysis - Term loan                        
                         
Increase by 100 basis points    
4
      
(25
 )    
(60
 )
Decrease by 100 basis points    
(4
 )    
25
      
60
  
                         
Sensitivity analysis - Overdraft                        
                         
Increase by 100 basis points    
-
      
(5
 )    
-
  
Decrease by 100 basis points    
-
      
5
      
-