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Interest income, Interest expense and Foreign exchange (losses) gains, net
 12 Months Ended
Dec. 31, 2025
Interest Income (Expense) And Foreign Exchange Gain (Loss) [Abstract]  
Interest income, Interest expense and Foreign exchange (losses) gains, net Interest income, Interest expense and Foreign exchange (losses) gains, net
Accounting policies
Interest income consists of interest income earned on cash and cash equivalents, short-term investments, and lease receivables. Interest expense consists of interest expense incurred on lease liabilities and loans, which includes interest on commercial borrowings. The foreign exchange gains and losses arise principally on intercompany receivable balances in the parent company, whose functional currency is the Swiss Franc.
Interest income
The table presents interest income (in USD thousands):
December 31,
202520242023
Interest income$1,872 $3,362 $4,547 
Total interest income$1,872 $3,362 $4,547 
Interest expense
The table presents interest expense (in USD thousands):

December 31,
202520242023
Interest on loans(3,953)(1,339)— 
Interest on lease liabilities(573)(567)(545)
Other interest(28)(7)(43)
Total interest expense$(4,554)$(1,913)$(588)
Foreign exchange gains (losses), net
The table presents foreign exchange gains (losses), net (in USD thousands):
December 31,
202520242023
Foreign exchange gains (losses), net(3,402)3,479 (7,628)
Total foreign exchange gains (losses), net$(3,402)$3,479 $(7,628)