Income Taxes (Schedule of Deferred Tax Assets) (Details) - USD ($) $ in Thousands |
Dec. 31, 2023 |
Dec. 31, 2022 |
|---|---|---|
| Deferred tax assets: | ||
| Net operating loss carryovers | $ 84,651 | $ 75,011 |
| Stock compensation and other | 1,946 | 2,399 |
| Change in fair value of warrant liabilities | 59 | 59 |
| Amortization of license | 11,856 | 13,375 |
| Lease liability | 929 | 1,466 |
| Accruals and reserves | 1,841 | 1,434 |
| Startup costs | 5 | 6 |
| Tax credits | 18,189 | 15,649 |
| 174 Capitalization | 28,800 | 19,787 |
| Total deferred tax assets | 148,276 | 129,186 |
| Less valuation allowance | (147,694) | (128,101) |
| Net deferred tax assets | 582 | 1,085 |
| Deferred tax liabilities: | ||
| Right of use asset | (582) | (1,085) |
| Total deferred tax assets, net | $ 0 | $ 0 |
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- Definition The amount of deferred tax asset operating lease liabilities. No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to capitalization of research and development expenses. No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from start up costs. No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from derivative instruments. 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 temporary differences from intangible assets including goodwill. No definition available.
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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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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. 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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- References No definition available.
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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 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 allowances of deferred tax asset attributable to deductible temporary differences from compensation and benefits costs. 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 from reserves, classified as other. 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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- 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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- References No definition available.
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