Income taxes - Net Deferred Tax Assets (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Deferred tax assets: | ||
| Net operating loss carryforwards | $ 77,655 | $ 65,302 |
| Research and development credit carryforwards | 6,644 | 6,042 |
| Research and development capitalized costs | 5,978 | 8,297 |
| Inventories | 473 | 326 |
| Lease liability | 1,137 | 1,413 |
| Accrued expenses | 1,509 | 1,244 |
| Unrealized loss | 0 | 0 |
| Other | 1,640 | 1,500 |
| Total deferred tax assets | 95,036 | 84,124 |
| Deferred tax liabilities: | ||
| Right-of-use assets | (947) | (1,188) |
| Unrealized gain | 0 | (9) |
| Depreciation | (82) | (353) |
| Total deferred tax liabilities | (1,029) | (1,550) |
| Valuation allowance | (94,007) | (82,574) |
| Net deferred tax assets | $ 0 | $ 0 |
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued expenses. No definition available.
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- Definition Deferred Tax Assets, Leasing Arrangements No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from research and development capitalized costs. No definition available.
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- Definition Deferred Tax Liabilities, Debt Securities, Available-For-Sale, Unrealized Gain No definition available.
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- Definition Amount of deferred tax consequences attributable to taxable temporary differences derived from depreciation. No definition available.
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- Definition Amount of deferred tax liability attributable to taxable temporary differences. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, before allocation of a valuation allowances, of deferred tax assets attributable to deductible tax credit carryforwards including, but not limited to, research, foreign, general business, alternative minimum tax, and other deductible tax credit carryforwards. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary difference from unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from leasing arrangements. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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