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Note 8 - OMIDRIA Royalty Obligation (Tables) | 6 Months Ended
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Jun. 30, 2025
Notes Tables |
Schedule of Royalty Obligation [Table Text Block] |
Balance at December 31, 2024 |  | $ | 216,257 |
Remeasurement on the OMIDRIA royalty obligation |  |  | (11,878 | )
Principal payments |  |  | (6,701 | )
Balance at June 30, 2025 |  | $ | 197,678 |
Schedule of Interest Expense on Royalty Obligation [Table Text Block] |
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 30, |  |  | June 30, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
|  | (In thousands) |
Pass through interest remitted through administrative agent |  | $ | 5,069 |  |  | $ | 5,701 |  |  | $ | 10,286 |  |  | $ | 9,646 |
Non-cash remeasurement adjustment |  |  | (8,506 | ) |  |  | 728 |  |  |  | (11,878 | ) |  |  | 1,806 |
Interest (income)/expense on OMIDRIA royalty obligation |  | $ | (3,437 | ) |  | $ | 6,429 |  |  | $ | (1,592 | ) |  | $ | 11,452 |
Maximum Scheduled Principal and Interest Payments of Royalty Obligation [Table Text Block] |
​ |  | ​ |  |  | ​ |  |  |  |  |
​ |  | Principal |  |  | Interest |  |  | Total |
​ |  | (In thousands) |
2025 |  | $ | 8,799 |  |  | $ | 9,416 |  |  | $ | 18,215 |
2026 |  |  | 22,439 |  |  |  | 17,322 |  |  |  | 39,761 |
2027 |  |  | 25,654 |  |  |  | 15,004 |  |  |  | 40,658 |
2028 |  |  | 29,068 |  |  |  | 12,372 |  |  |  | 41,440 |
2029 and thereafter |  |  | 111,718 |  |  |  | 17,645 |  |  |  | 129,363 |
Total scheduled payments |  | $ | 197,678 |  |  | $ | 71,759 |  |  | $ | 269,437 |

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