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Revenues (Tables) | 12 Months Ended
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Dec. 31, 2025
Revenue from Contract with Customer [Abstract] |
Schedule of Disaggregated Revenue | The following table presents disaggregated revenue in the following categories (in thousands):
|  |  | Years Ended December 31,
|  |  |  |  | 2025 |  | 2024
Contract Types: |  |  |  |  |  |  |
Licensing |  |  |  |  | $ | 19,843 |  |  | $ | 11,297 |
Engineering and other services |  |  |  |  | 16,186 |  |  | 19,761 |
Biorefining revenue |  |  |  |  | $ | 36,029 |  |  | $ | 31,058 |
Joint development agreements |  |  |  |  | 2,425 |  |  | 6,226 |
Contract research |  |  |  |  | 2,766 |  |  | 4,365 |
Joint development and contract research revenue |  |  |  |  | $ | 5,191 |  |  | $ | 10,591 |
CarbonSmart product |  |  |  |  | 14,625 |  |  | 7,943 |
Total Revenue |  |  |  |  | $ | 55,845 |  |  | $ | 49,592 |
The following table presents revenue from partners in collaborative arrangements and from grant contributions which are included in the table above as follows (in thousands):
|  |  | Years Ended December 31,
|  |  |  |  | 2025 |  | 2024
Revenue from partners in collaborative agreements included in the Joint development agreements above |  |  |  |  | $ | 2,425 |  |  | $ | 5,573 |
Revenue from grant contributions included in Engineering and other services above |  |  |  |  | 5,766 |  |  | 6,403 |
The following table presents disaggregation of the Company’s revenues by customer location for the years ended December 31, 2025 and 2024 (in thousands):
|  |  | Years Ended December 31,
|  |  |  |  | 2025 |  | 2024
North America |  |  |  |  | $ | 24,682 |  |  | $ | 23,587 |
Europe, Middle East, Africa (EMEA) |  |  |  |  | 14,644 |  |  | 16,260 |
Asia |  |  |  |  | 16,519 |  |  | 8,862 |
Australia |  |  |  |  | — |  |  | 883 |
Total Revenue |  |  |  |  | $ | 55,845 |  |  | $ | 49,592 |
Schedule of Changes in Contract Assets and Liabilities | The following table provides changes in contract assets and liabilities (in thousands):
| Current Contract Assets |  | Current Contract Liabilities |  | Non-current Contract Liabilities
Balance as of December 31, 2024 | $ | 18,975 |  |  | $ | 6,168 |  |  | $ | 5,233 |
Additions to unbilled accounts receivable | 21,204 |  |  | — |  |  | — |
Increases due to consideration received | — |  |  | 6,692 |  |  | — |
Unbilled accounts receivable recognized in trade receivables | (32,001) |  |  | — |  |  | — |
Allowance on doubtful contract assets | (1,864) |  |  |  |  |
Increase on revaluation on currency | 227 |  |  | 2 |  |  | 665 |
Reclassification from long-term to short-term | — |  |  | 2 |  |  | (2) |
Reclassification to revenue because of performance obligations satisfied | — |  |  | (12,441) |  |  | — |
Balance as of December 31, 2025 | $ | 6,541 |  |  | $ | 423 |  |  | $ | 5,896 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-10 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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