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Note 7 - Discontinued Operations - Sale of OMIDRIA - Net Income From Discontinued Operations (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Income tax expense (1) |  | $ 462 | $ 3,952 | $ 1,006
Discontinued Operations, Disposed of by Sale [Member] | Omidria Assets Disposal [Member] |  |  |  |
Costs and expenses |  | 0 | 0 | 30,631
Gross margin |  | 0 | 0 | 80,104
Gain on sale of OMIDRIA |  | 0 | 0 | 305,648
Interest on OMIDRIA contract royalty asset |  | 15,315 | 18,634 | 0
Remeasurement adjustments |  | 41,167 | 14,457 | 0
Other income |  | 1,087 | 307 | 1,035
Income before income tax |  | 57,569 | 233,398 | 386,787
Income tax expense (1) |  | (462) | (3,952) | (1,006)
Net income from discontinued operations, net of tax |  | 57,107 | 229,446 | 385,781
Discontinued Operations, Disposed of by Sale [Member] | Omidria Assets Disposal [Member] | Product [Member] |  |  |  |
Revenue | [1] | 0 | 0 | 110,735
Discontinued Operations, Disposed of by Sale [Member] | Omidria Assets Disposal [Member] | Development Milestones [Member] |  |  |  |
Revenue |  | $ 0 | $ 200,000 | $ 0
[1] | For further discussion of income tax expense refer to “Note 13 – Income Taxes”.

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