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Note 31 - Financial Instruments (Tables)
 12 Months Ended
Dec. 31, 2019
Statement Line Items [Line Items]  
Disclosure of credit risk exposure [text block]
Carrying amount   December 31, 2019     December 31, 2018  
             
Zimbabwe    
3, 123
      
3,639
  
Jersey, Channel Islands    
2,003
      
-
  
Other regions    
20
      
10
  
     
5,146
      
3,649
  
Disclosure of maturity analysis for non-derivative financial liabilities [text block]
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
  
December 31, 2018   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]
   
2019
$‘000
     2018
$‘000		  
    Functional currency     Functional currency  
    ZAR     $     ZAR     $  
Cash and cash equivalents    
57
      
4,176
      
57
      
8,147
  
Trade and other receivables    
-
      
1,735
      
-
      
126
  
Trade and other payables    
-
      
(179
 )    
-
      
(345
 )
Term loan    
-
      
(2,471
 )    
-
      
(5,960
 )
Overdraft    
-
      
(490
 )    
-
      
-
  
     
57
      
2,771
      
57
      
1,968
  
   
2019
$‘000
     2018
$’000		  
    Functional currency     Functional currency  
    ZAR     $     ZAR     $  
Cash and cash equivalents    
3
      
199
      
3
      
388
  
Trade and other receivables    
-
      
82
      
-
      
6
  
Trade and other payables    
-
      
9
      
-
      
(16
 )
Term loan    
-
      
(117
 )    
-
      
(283
 )
Overdraft    
-
      
(23
 )    
-
      
-
  
     
3
      
150
      
3
      
95
  
    2019     2018  
Cash and cash equivalents    
9,383
      
11,187
  
Term loan    
(2,471
 )    
(5,960
 )
Overdraft    
(490
 )    
-
  
Sensitivity analysis – Cash and cash equivalents   2019     2018  
Increase by 100 basis points    
94
      
111
  
Decrease by 100 basis points    
(94
 )    
(111
 )
Sensitivity analysis – Term loan   2019     2018  
             
Increase by 100 basis points    
(25
 )    
(60
 )
Decrease by 100 basis points    
25
      
60
  
Sensitivity analysis – Overdraft   2019     2018  
             
Increase by 100 basis points    
(5
 )    
-
  
Decrease by 100 basis points    
5
      
-