v3.26.1
Property, plant and equipment (Tables)
 12 Months Ended
Dec. 31, 2025
Property, plant and equipment [abstract]  
Schedule of Property, Plant and Equipment Including Right-of-Use Assets
Property, plant and equipment include:
Leasehold
improvements		Plant and
equipment		IT and office
equipment		Right of useTotal
 (in thousands)
Cost:
At January 1, 2023$1,417 $32,380 $4,387 7,079 $45,263 
Additions75 1,812 220 767 2,874 
Disposals— (2)(3)(414)(419)
Exchange difference10 107 16 — 133 
At December 31, 20231,502 34,297 4,620 7,432 47,851 
Additions— 772 70 462 1,304 
Disposals(77)(727)(275)(705)(1,784)
Exchange difference(4)(22)(19)— (45)
At December 31, 20241,421 34,320 4,396 7,189 47,326 
Additions20 304 162 1,255 1,741 
Acquisition of ACP Advanced Circuit Pursuit AG— 951 — — 951 
Disposals(38)(88)(459)(302)(887)
Exchange difference30 235 160 — 425 
At December 31, 2025$1,433 $35,722 $4,259 $8,142 $49,556 
Depreciation and impairment:
At January 1, 20231,333 26,971 3,993 4,477 36,774 
Depreciation charge for the year41 2,421 198 1,223 3,883 
Impairment— 711 — — 711 
Disposals— (2)— (414)(416)
Exchange difference7 69 8 — 84 
At December 31, 20231,381 30,170 4,199 5,286 41,036 
Depreciation charge for the year21 1,656 225 1,201 3,103 
Impairment— 251 — — 251 
Disposals(23)(606)(224)(483)(1,336)
Exchange difference(4)(15)(17)— (36)
At December 31, 20241,375 31,456 4,183 6,004 43,018 
Depreciation charge for the year14 1,571 192 980 2,757 
Disposals(37)(88)(448)(304)(877)
Exchange difference208 262 (112)— 358 
At December 31, 2025$1,422 $33,111 $4,044 6,680 $45,257 
Net book value:
At January 1, 2023$84 $5,409 $394 2,602 $8,489 
At December 31, 2023121 4,127 421 2,146 6,815 
At December 31, 202446 2,864 213 1,185 4,308 
At December 31, 2025$11 $2,611 $215 1,462 $4,299