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Trade and other receivables (Details Textual)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Statement [Line Items]    
Percentage of entity's revenue 29.60% 33.40%
Country of domicile [member] | Credit Risk [Member]    
Statement [Line Items]    
Credit Insurance Coverage Rate 90.00%  
Foreign countries [member] | Credit Risk [Member]    
Statement [Line Items]    
Credit Insurance Coverage Rate 99.00%