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Note 26 - Cash Flow Information
 12 Months Ended
Dec. 31, 2017
Statement Line Items [Line Items]  
Disclosure of cash flow statement [text block]
26
Cash flow information
 
Non-cash items and information presented separately on the cash flow statement:
 
    2017     2016     2015  
Profit for the year    
11,896
      
11,085
      
5,590
  
Adjustments for:                        
Tax expense    
8,691
      
7,717
      
2,370
  
Net finance cost    
31
      
176
      
535
  
Loss on sale of Property, plant and equipment    
2
      
44
      
-
  
Impairment of Property, plant and equipment    
12
      
20
      
33
  
Foreign exchange gains on cash held    
121
      
(105
 )    
(2,865
 )
Site restoration    
36
      
32
      
-
  
Cash-settled share-based payment expense    
1,208
      
788
      
-
  
Equity-settled share-based payment expense    
835
      
-
      
24
  
Depreciation    
3,763
      
3,491
      
3,322
  
Allowance for obsolete stock    
32
      
862
      
46
  
Provision for impairment - royalty rebate (note 17)    
181
      
-
      
-
  
Cash generated by operations before working capital changes    
26,808
      
24,110
      
9,055
  
Inventories    
(1,975
 )    
(1,990
 )    
375
  
Prepayments    
82
      
(99
 )    
(321
 )
Trade and other receivables    
(1,437
 )    
555
      
(1,472
 )
Trade and other payables    
5,407
      
3,095
      
1,186
  
Cash flows from operating activities    
28,885
      
25,671
      
8,823