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Accumulated Other Comprehensive Income (Tables) | 9 Months Ended
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Sep. 30, 2025
Accumulated Other Comprehensive Income |
Schedule of changes in accumulated other comprehensive income | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Unrealized | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Gain (Loss) on | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Marketable | ​ | Foreign | ​ | ​ | ​
​ |  | Securities |  | Currency Items |  | Total
​ | ​ | (In thousands)
Balance at December 31, 2024 | ​ | $ | 718 | ​ | $ | 2,596 | ​ | $ | 3,314
Other comprehensive income | ​ |  | 451 | ​ |  | — | ​ |  | 451
Balance at September 30, 2025 | ​ | $ | 1,169 | ​ | $ | 2,596 | ​ | $ | 3,765

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