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v3.24.1

Note 1 - Organization and Basis of Presentation (Details Textual) $ in Thousands |  | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Dec. 23, 2021 USD ($) | Feb. 29, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Mar. 01, 2021 USD ($) | Aug. 14, 2020 USD ($)
Proceeds from Divestiture of Businesses |  |  | $ 0 | $ 0 | $ 125,993 |  |
Milestone Payment If Achieved Under Asset Purchase Agreement | $ 200,000 |  |  |  |  |  |
Milestone Period (Year) | 4 years |  |  |  |  |  |
Milestone Payment Receivable |  |  | 0 | 200,000 |  |  |
Cash, Cash Equivalents, and Short-Term Investments |  |  | 171,800 |  |  |  |
Net Cash Provided by (Used in) Operating Activities |  |  | 74,726 | (86,483) | (109,722) |  |
Net Income (Loss) Attributable to Parent |  |  | (117,813) | 47,417 | 194,235 |  |
Cash Proceeds From Milestone Payment |  |  | 200,000 |  |  |  |
Long-Term Debt, Gross |  |  | 215,924 | 320,030 |  |  |
Proceeds From Royalty Obligation |  |  | 0 | 125,000 | 0 |  |
Equity Offering Facility, Maximum Aggregate Offering Amount |  |  | $ 150,000 |  |  | $ 150,000 |
Number of Operating Segments |  |  | 1 |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |
Proceeds From Royalty Obligation |  | $ 115,500 |  |  |  |  |
Convertible Senior Notes 2023 [Member] |  |  |  |  |  |  |
Long-Term Debt, Gross |  |  | $ 95,000 | $ 95,000 |  |  | $ 95,000
Discontinued Operations, Disposed of by Sale [Member] | Omidria Assets Disposal [Member] |  |  |  |  |  |  |
Proceeds from Divestiture of Businesses | $ 126,000 |  |  |  | $ 125,993 |  |

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