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Trade and other receivables
 12 Months Ended
Dec. 31, 2025
Subclassifications of assets, liabilities and equities [abstract]  
Trade and other receivables Trade and other receivables:
December 31, 2025December 31, 2024
Trade accounts receivable, gross$23,711 $29,475 
Allowance for doubtful accounts(2,946)(5,292)
Trade accounts receivable, net20,765 24,183 
Other receivables3,437 4,654 
Contract assets— 3,146 
$24,202 $31,983 
Contract assets
Contract assets primarily relate to the Corporation's rights to consideration for work completed but not billed as at December 31, 2025 for engineering services and technology transfer services.
Contract assetsDecember 31, 2025December 31, 2024
At January 1, 2025$3,146 $13,269 
Additions to contract assets— 1,375 
Invoiced during the year(3,146)(2,320)
Impaired during the year— (9,178)
At December 31, 2025$— $3,146 

Information about the Corporation's exposure to credit and market risks, and impairment losses for trade receivables and contract assets is included in note 31.