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Income Taxes - Components of Deferred Income Taxes (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Deferred Tax Assets: |  |
Accumulated net operating losses (tax effected) | $ 12,736 | $ 13,132
Lease liability | 86 | 136
Share-based compensation | 2,370 | 3,027
Intangibles | 889 | 944
Capitalized research and development | 6,662 | 5,018
Accumulated depreciation | 10 | 14
Accrued payroll | 218 | 118
Other | 638 | 579
Deferred tax assets | 23,609 | 22,968
Deferred Tax Liabilities: |  |
Right-of-use asset | (87) | (137)
Cash to accrual | 0 | (99)
Deferred tax liabilities | (87) | (236)
Net deferred tax asset | 23,522 | 22,732
Valuation allowance | (23,522) | (22,732)
Net deferred tax asset | $ 0 | $ 0

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