Segment reporting - Other segment expenses (Details) - USD ($) |
6 Months Ended | |
|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
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| Other segment reporting | ||
| Research and development tax and expenditure of credits | $ 3,901,000 | $ 5,879,000 |
| Depreciation | 4,620,000 | 5,457,000 |
| Amortization | $ 355,000 | $ 115,000 |
| X | ||||||||||
- Definition NA No definition available.
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| X | ||||||||||
- Definition The amount of credit for research and development expenses as they relate to direct expenditures relating to a company's efforts to develop, design, and enhance its products, services, technologies, or processes. No definition available.
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| X | ||||||||||
- Definition The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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