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The Nature of Expenses (Details 1) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Amortisation, intangible assets other than goodwill $ 1,980 $ 1,408
Cost of Revenues [Member]    
Amortisation, intangible assets other than goodwill 3 2
Operating Expenses [Member]    
Amortisation, intangible assets other than goodwill $ 1,977 $ 1,406