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INTANGIBLES | 12 Months Ended
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Dec. 31, 2024
INTANGIBLES [Abstract] |
INTANGIBLES | 4. INTANGIBLES Intangible assets consist of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Dollars in Thousands
​ | ​ | December 31, 2024
​ |  | ​ | ​ |  | Accumulated |  | Net Book
​ | ​ | Cost | ​ | Amortization | ​ | Value
Technology | ​ | $ | 18,990 | ​ | $ | 7,121 | ​ | $ | 11,869
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Dollars in Thousands
​ | ​ | December 31, 2023
​ |  | ​ | ​ |  | Accumulated |  | Net Book
​ | ​ | Cost | ​ | Amortization | ​ | Value
Technology | ​ | $ | 18,990 | ​ | $ | 6,172 | ​ | $ | 12,818
​
​ | ​ | ​ | ​
​ |  | Estimated Useful Life | ​
Technology |  | 20 | years
​ Amortization expense for intangible assets was $1.0 million during the years ended December 31, 2024 and 2023, respectively. Amortization expense for intangible assets is expected to be $1.0 million for each of the years ending December 31, 2025, 2026, 2027, 2028 and 2029, respectively.

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