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v3.23.1

Income Taxes - Deferred Taxes (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Deferred tax assets: |  |
Net operating loss carryforwards | $ 53,393 | $ 34,399
Share-based compensation | 4,684 | 4,108
Amortization | 3,541 | 3,429
Orphan drug and R&D tax credit | 4,964 | 4,964
Capitalized research costs | 2,108 | 0
Other | 1,521 | 662
Interest expense carryforward | 1,216 | 1,591
Gross deferred tax assets | 71,427 | 49,153
Deferred tax liabilities: |  |
Prepaid expenses | (86) | (75)
Other | 0 | (925)
Gross deferred tax liabilities | (86) | (1,000)
Less: valuation allowances | (71,341) | (24,025)
Net deferred tax assets | $ 0 | $ 24,128

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