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Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Deferred tax assets: |  |
Federal, State and Foreign NOL Carryforward | $ 27,356 | $ 22,235
Accrued compensation | 24 | 29
Stock Issued For Services | 957 | 1,053
Stock Issued for Acquisition of Program | 1,457 | 1,456
Stock Issued for License Agreement | 1,124 | 1,362
Amortizable License Fee | 3 | 4
Capitalized Research & Development costs | 2,422 | 1,592
Total Gross DTA | 33,343 | 27,731
Less: Val. Allowance | (28,351) | (24,562)
Total Deferred Tax Assets | 4,992 | 3,169
Deferred Tax Liabilities: |  |
IPR&D | (4,939) | (4,787)
ASC 842 Net ROU Assets | (53) |
Total Gross DTL | $ (4,992) | (4,787)
Net Deferred Tax Asset (Liability) |  | $ (1,618)

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