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Non-operating expenses (Tables)
12 Months Ended
Dec. 31, 2022
Non-operating Expenses  
Non-Operating Expenses - Schedule of Non-Operating Expenses

Non-operating expenses consisted of the following:

           
  12 months ended December 31,
USD'000 2022   2021   2020
Foreign exchange losses 3,618   2,146   2,195
Financial charges 56   158   104
Interest expense 565   893   685
Other components of defined benefit plans, net 14   (78)   248
Impairment of equity securities at cost -   -   7,000
Accounts receivable write-off 1,282   -   -
Other 16   307   847
Total non-operating expenses from continuing operations 5,551   3,426   11,079