v3.26.1
Financial Liabilities and Lease Debts - Schedule of reconciliation of movements of liabilities to cash flows arising from financing liabilities (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
BPI Refundable Advance Agreement [Member]    
Disclosure of reconciliation of liabilities arising from financing activities [line items]    
Financial liabilities and lease debts, Beginning balance $ 3,189 $ 1,448
Proceeds from new debts non-current financial liabilities and non-current lease debts   1,656
Other non-cash movements financial liabilities and lease debts   16
Interest expense financial liabilities and lease debts 419 232
Currency translation adjustment financial liabilities and lease debts 435 (163)
Financial liabilities and lease debts, Ending balance 4,042 3,189
Current Lease Debts [Member]    
Disclosure of reconciliation of liabilities arising from financing activities [line items]    
Financial liabilities and lease debts, Beginning balance [1] 8,385 8,502
Debt repayments financial liabilities and lease debts [1] (8,589) (8,426)
Reclassifications financial liabilities and lease debts [1] 7,512 8,513
Interest expense financial liabilities and lease debts [1] 2,225 2,636
Interest paid financial liabilities and lease debts [1] (2,225) (2,636)
Currency translation adjustment financial liabilities and lease debts [1] 392 (203)
Financial liabilities and lease debts, Ending balance [1] 7,701 8,385
Non Current Lease Debts [Member]    
Disclosure of reconciliation of liabilities arising from financing activities [line items]    
Financial liabilities and lease debts, Beginning balance 34,245 42,948
Other non-cash movements financial liabilities and lease debts   408
Reclassifications financial liabilities and lease debts (7,512) (8,513)
Currency translation adjustment financial liabilities and lease debts 992 (597)
Financial liabilities and lease debts, Ending balance 27,725 34,245
Current Portion of State-Guaranteed Loan [Member]    
Disclosure of reconciliation of liabilities arising from financing activities [line items]    
Financial liabilities and lease debts, Beginning balance 4,841 5,162
Debt repayments financial liabilities and lease debts (5,235) (5,001)
Other non-cash movements financial liabilities and lease debts 9  
Reclassifications financial liabilities and lease debts 3,912 5,017
Interest expense financial liabilities and lease debts 138 130
Interest paid financial liabilities and lease debts (156) (145)
Currency translation adjustment financial liabilities and lease debts 579 (322)
Financial liabilities and lease debts, Ending balance 4,090 4,841
Non-Current Portion of State-Guaranteed Loan [Member]    
Disclosure of reconciliation of liabilities arising from financing activities [line items]    
Financial liabilities and lease debts, Beginning balance 3,599 8,950
Reclassifications financial liabilities and lease debts (3,912) (5,017)
Currency translation adjustment financial liabilities and lease debts 313 (334)
Financial liabilities and lease debts, Ending balance   3,599
European Investment Bank Loan [Member]    
Disclosure of reconciliation of liabilities arising from financing activities [line items]    
Financial liabilities and lease debts, Beginning balance 37,202 18,046
Proceeds from new debts non-current financial liabilities and non-current lease debts   17,248
Other non-cash movements financial liabilities and lease debts (11) 79
Interest expense financial liabilities and lease debts 4,913 3,751
Currency translation adjustment financial liabilities and lease debts 5,072 (1,921)
Financial liabilities and lease debts, Ending balance 47,175 37,202
European Investment Bank Warrants [Member]    
Disclosure of reconciliation of liabilities arising from financing activities [line items]    
Financial liabilities and lease debts, Beginning balance 6,010 7,797
Proceeds from new debts non-current financial liabilities and non-current lease debts   4,297
Non-cash change in fair value financial liabilities and lease debts 14,668 (5,673)
Currency translation adjustment financial liabilities and lease debts 1,381 (412)
Financial liabilities and lease debts, Ending balance 22,059 6,010
Other Current Financial Liabilities [Member]    
Disclosure of reconciliation of liabilities arising from financing activities [line items]    
Financial liabilities and lease debts, Beginning balance 11,293 [2] 126
Debt repayments financial liabilities and lease debts [2] (136)  
Other non-cash movements financial liabilities and lease debts [2] (6,119)  
Reclassifications financial liabilities and lease debts 146 [2] 11,757
Interest expense financial liabilities and lease debts 434 [2] 705
Interest paid financial liabilities and lease debts (456) [2] (702)
Currency translation adjustment financial liabilities and lease debts 1,206 [2] (594)
Financial liabilities and lease debts, Ending balance [2] 6,369 11,293
Other Non-Current Financial Liabilities [member]    
Disclosure of reconciliation of liabilities arising from financing activities [line items]    
Financial liabilities and lease debts, Beginning balance 881 12,884
Reclassifications financial liabilities and lease debts (146) (11,757)
Currency translation adjustment financial liabilities and lease debts   (246)
Financial liabilities and lease debts, Ending balance 735 881
Total Current Financial Liabilities and Current Lease Debts [Member]    
Disclosure of reconciliation of liabilities arising from financing activities [line items]    
Financial liabilities and lease debts, Beginning balance 24,519 13,790
Debt repayments financial liabilities and lease debts (13,959) (13,427)
Other non-cash movements financial liabilities and lease debts (6,110)  
Reclassifications financial liabilities and lease debts 11,571 25,288
Interest expense financial liabilities and lease debts 2,798 3,471
Interest paid financial liabilities and lease debts (2,837) (3,483)
Currency translation adjustment financial liabilities and lease debts 2,178 (1,119)
Financial liabilities and lease debts, Ending balance 18,161 24,519
Total Non-Current Financial Liabilities and Non-Current Lease Debts [Member]    
Disclosure of reconciliation of liabilities arising from financing activities [line items]    
Financial liabilities and lease debts, Beginning balance 85,127 92,073
Proceeds from new debts non-current financial liabilities and non-current lease debts   23,201
Other non-cash movements financial liabilities and lease debts (11) 502
Reclassifications financial liabilities and lease debts (11,571) (25,288)
Interest expense financial liabilities and lease debts 5,332 3,983
Non-cash change in fair value financial liabilities and lease debts 14,668 (5,673)
Currency translation adjustment financial liabilities and lease debts 8,193 (3,671)
Financial liabilities and lease debts, Ending balance $ 101,738 $ 85,127
[1] Payments on lease debts as presented on the Company's statements of consolidated cash flows include debt repayments and related interests paid
[2] Other non-cash transactions of $6.1 million in 2025 relate to the settlement by the French tax authorities of our 2021 Research Tax Credit partial financing directly to the lender (Bpifrance).