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(LOSS)/PROFIT BEFORE TAX (Tables)
 12 Months Ended
Dec. 31, 2022
Disclosure of loss profit before tax [Abstract]  
Schedule of Loss/profit Before Tax
 
 
  
December 31,
2022
US$‘000
    
December 31,
2021
US$‘000
    
December 31,
2020
US$‘000
  
Directors’ emoluments (including non- executive directors):
                  
Remuneration
    
1,639
      
1,391
      
2,020
  
Pension
    
24
      
24
      
41
  
Share based payments
    
1,707
      
986
      
678
  
Auditor’s remuneration
                        
Audit fees
    
888
       580       558  
Tax fees
    
89
      
77
      
146
  
Depreciation (Note 11)1
    
1,410
      
1,827
      
1,674
  
Amortisation (Note 12)
    
923
      
917
      
1,403
  
Loss/(profit) on the disposal of property, plant and equipment
    
2
      
(1
)
    
30
  
Selling, General and Administrative Expenses – Closure Costs
     -       -       2,425  
Net foreign exchange differences
    
(1,210
)
    
(789
)
    
583
  

1 In 2022, no depreciation was capitalised to research and development projects (2021: US$38,000) (2020: US$40,000).