Note 9 - Liability Related to Sale of Future Royalties - Activity of Liability Related to Sale of Future Royalties (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | 78 Months Ended | |||
|---|---|---|---|---|---|---|
May 31, 2022 |
Sep. 30, 2022 |
Sep. 30, 2021 |
Sep. 30, 2022 |
Sep. 30, 2021 |
Mar. 31, 2022 |
|
| Liability related to sale of future royalties — beginning balance | $ 85,288 | $ 0 | ||||
| Proceeds from sale of future royalties | 0 | 61,184 | ||||
| Non-cash royalty revenue | 0 | (1,083) | ||||
| Non-cash interest (income) expense recognized | $ 0 | $ (764) | (1,136) | $ (2,345) | 24,051 | |
| Consideration paid for termination of Royalty Monetization | $ (100) | (100) | (100) | |||
| Gain on termination of liability related to sale of future royalties | 0 | $ 0 | (84,052) | $ 0 | (84,052) | |
| Liability related to sale of future royalties as of September 30, 2022 | $ 0 | $ 0 | $ 0 | |||