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Accounts receivable (Tables) | 3 Months Ended
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Mar. 31, 2026
Receivables [Abstract] |
Schedule of Accounts Receivable |
| March 31, 2026 |  | December 31, 2025
Trade accounts receivable | $ | 157 |  |  | $ | 14 |
Other receivables (Note a) | 11,047 |  |  | 10,816 |
Provision for expected credit loss (Note a) | (5,304) |  |  | (10,304) |
| $ | 5,900 |  |  | $ | 526 |
(a) As at December 31, 2025, VRB was owed the remaining tranche of $10.3 million from its sale of 51% of the shares in VRB China to China Energy Storage Industry Co., Ltd. (“Red Sun”). At December 31, 2025, the Company recorded a provision for expected credit loss in the amount of the full second tranche payment as it was due on June 30, 2025 and had not been received.

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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