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v3.25.1

CONVERTIBLE NOTES (Tables) | 12 Months Ended
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Dec. 31, 2024
2024 Notes |
Schedule of Interest Expense Recognized | The following table sets forth total interest expense recognized related to the 2024 Notes:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
(U.S. dollars in thousands) | ​ | 2022 | ​ | 2023 |  | 2024*
Contractual interest expense | ​ | $ | 2,156 | ​ | $ | 2,534 | ​ | $ | 1,022
Amortization of debt issuance costs and debt discount | ​ |  | 300 | ​ |  | 267 | ​ |  | —
Total | ​ | $ | 2,456 | ​ | $ | 2,801 | ​ | $ | 1,022
* See also Note 1(r).

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