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Material Agreements (Details) $ in Thousands |  |  |  |  |  |  |  | 2 Months Ended | 3 Months Ended | 12 Months Ended | 17 Months Ended | 26 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 02, 2023 USD ($) | Nov. 01, 2022 USD ($) | Oct. 26, 2022 USD ($) | Sep. 26, 2022 USD ($) | May 17, 2022 USD ($) vestingPeriod day | Nov. 03, 2020 USD ($) | Apr. 01, 2016 USD ($) | Dec. 31, 2020 USD ($) | Jun. 30, 2020 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Feb. 20, 2019 USD ($) | Dec. 31, 2022 USD ($) | Mar. 03, 2022 USD ($)
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  | $ 47,680 | $ 50,832 |  |  |  |
Pro rata portion of target bonus |  |  |  |  | $ 280 |  |  |  |  |  |  |  |  |  |
Cash payment representing 90 days of base pay |  |  |  |  | $ 150 |  |  |  |  |  |  |  |  |  |
Days of base pay | day |  |  |  |  | 90 |  |  |  |  |  |  |  |  |  |
Severance costs |  |  |  |  | $ 263 |  |  |  |  |  |  |  |  |  |
Number of installments | vestingPeriod |  |  |  |  | 3 |  |  |  |  |  |  |  |  |  |
Severance period (in months) |  |  |  |  | 18 months |  |  |  |  |  |  |  |  |  |
Coverage duration |  |  |  |  | 18 months |  |  |  |  |  |  |  |  |  |
Consulting fee |  |  |  |  | $ 10 |  |  |  |  |  |  |  |  |  |
Assertio Holdings, Inc |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from collaborators |  |  | $ 9,000 |  |  |  |  |  |  |  |  |  |  |  |
Contingent consideration, milestone payments |  | $ 6,000 |  |  |  |  |  |  |  |  |  |  |  |  |
First Seven Months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Severance costs |  |  |  |  | 53 |  |  |  |  |  |  |  |  |  |
Eighth Month |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Severance costs |  |  |  |  | 70 |  |  |  |  |  |  |  |  |  |
Ninth through Eighteenth Month |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Severance costs |  |  |  |  | $ 88 |  |  |  |  |  |  |  |  |  |
License and royalty revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  | 2,351 | 5,380 |  |  |  |
Royalty |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  | $ (916) |  |  |  |  |
Royalty | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  | $ 8,000 |  |  |
Commercial Exploitation Agreement with Indivior |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
License agreement term |  |  |  |  |  |  |  |  |  | 7 years |  |  |  |  |
Automatic renewal period of agreement |  |  |  |  |  |  |  |  |  | 1 year |  |  |  |  |
Commercial Exploitation Agreement with Indivior | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Automatic renewal period of agreement | 1 year |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial Exploitation Agreement with Indivior | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notice period of intent not to renew agreement |  |  |  |  |  |  |  |  |  | 1 year |  |  |  |  |
Supplemental Agreement with Indivior |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  | $ 40,750 |  |
License Agreement with Sunovion Pharmaceuticals, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  | $ 22 |  |  |  |  |  |  |  |
Milestone payment, no longer receivable |  |  |  |  |  |  | 23,000 |  |  |  |  |  |  |  |
License Agreement with Sunovion Pharmaceuticals, Inc. | Royalty |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | $ 8,000 |  |  |  |  |  |
License Agreement with Sunovion Pharmaceuticals, Inc Milestones |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  | 17,000 |  |  |  |  |  |  |  |
License Agreement with Sunovion Pharmaceuticals, Inc Milestones | License and royalty revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  | $ 4,000 |  |  |
License Agreement with Sunovion Pharmaceuticals, Inc. Upfront |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  | $ 5,000 |  |  |  |  |  |  |  |
Marathon Pangolin Royalty LLC | Monetization Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of future revenue |  |  |  |  |  | $ 40,000 |  | $ 10,000 |  |  |  |  |  | $ 50,000 |
Proceeds from debt, contingent on additional milestones |  |  |  |  |  | 75,000 |  |  |  |  |  |  |  |  |
Marathon Pangolin Royalty LLC | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of future revenue |  |  |  |  |  | $ 125,000 |  |  |  |  |  |  |  |  |
Atnahs Pharma UK Limited | License & Supply Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of future revenue |  |  |  | $ 3,500 |  |  |  |  |  |  |  |  |  |  |
Haisco Pharmaceutical Group Co., Ltd, Upfront Payment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract with customer, receivable, after allowance for credit loss |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7,000
CLA KemPharm | License and royalty revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  | $ 2 |  |  |  |
Suboxone Agreements Settlement | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 11,482 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred revenue, revenue recognized | $ 5,482 |  |  |  |  |  |  |  |  |  |  |  |  |  |

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