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v3.23.1

Other Long-Term Liabilities (Tables) | 3 Months Ended
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Mar. 31, 2023
Other Long-Term Liabilities |
Schedule of other long-term liabilities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | March 31, |  | December 31,
​ | ​ | 2023 | ​ | 2022
​ | ​ | (In thousands)
Net deferred tax liabilities related to IPR&D (Note 11) | ​ | $ | 1,613 | ​ | $ | 1,613
Deferred Income From Sale of Tax Benefits | ​ |  | 3,720 | ​ |  | 4,650
Deferred revenue (Note 10) | ​ |  | 48 | ​ |  | 60
Total | ​ |  | 5,381 | ​ |  | 6,323
Less current portion | ​ |  | (978) | ​ |  | (990)
Long-term portion | ​ | $ | 4,403 | ​ | $ | 5,333
​

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