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Goodwill and Intangible Assets (Tables) | 3 Months Ended
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Mar. 31, 2023
Goodwill and Intangible Assets. |
Schedule of finite lived intangible assets | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Weighted- | ​ | At March 31, 2023
​ | ​ | Average | ​ | Gross | ​ | ​ | ​ | ​
​ | ​ | Amortization | ​ | Carrying | ​ | Accumulated | ​ | Net
(In thousands) |  | Period | ​ | Amount | ​ | Amortization | ​ | Amount
Definite-lived intangible assets: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Patents | ​ | 12 years | ​ | $ | 903 | ​ | $ | 192 | ​ | $ | 711
Defensive intangible assets | ​ | 2 years | ​ | ​ | 1,125 | ​ | ​ | 807 | ​ | ​ | 318
Customer accounts | ​ | < 1 year | ​ | ​ | 125 | ​ | ​ | 121 | ​ | ​ | 4
Customer relationships | ​ | 11 years | ​ | ​ | 31,000 | ​ | ​ | 3,722 | ​ | ​ | 27,278
Developed technology | ​ | 9 years | ​ | ​ | 13,000 | ​ | ​ | 1,845 | ​ | ​ | 11,155
Subtotal | ​ | ​ | ​ | ​ | 46,153 | ​ | ​ | 6,687 | ​ | ​ | 39,466
Unamortized intangible assets: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Tradenames | ​ | ​ | ​ | ​ | 9,500 | ​ | ​ | — | ​ | ​ | 9,500
Patents pending | ​ | ​ | ​ | ​ | 499 | ​ | ​ | — | ​ | ​ | 499
Total intangible assets | ​ | ​ | ​ | $ | 56,152 | ​ | $ | 6,687 | ​ | $ | 49,465
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Weighted- | ​ | At December 31, 2022
​ | ​ | Average | ​ | Gross | ​ | ​ | ​ | ​
​ | ​ | Amortization | ​ | Carrying | ​ | Accumulated | ​ | Net
(In thousands) |  | Period | ​ | Amount | ​ | Amortization | ​ | Amount
Definite-lived intangible assets: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Patents | ​ | 12 years | ​ | $ | 897 | ​ | $ | 173 | ​ | $ | 724
Defensive intangible assets | ​ | 2 years | ​ | ​ | 1,126 | ​ | ​ | 764 | ​ | ​ | 362
Customer accounts | ​ | < 1 year | ​ |  | 125 | ​ |  | 114 | ​ |  | 11
Customer relationships | ​ | 12 years | ​ | ​ | 31,000 | ​ | ​ | 3,127 | ​ | ​ | 27,873
Developed technology | ​ | 10 years | ​ | ​ | 13,000 | ​ | ​ | 1,550 | ​ | ​ | 11,450
Subtotal | ​ | ​ | ​ | ​ | 46,148 | ​ | ​ | 5,728 | ​ | ​ | 40,420
Unamortized intangible assets: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Tradenames | ​ | ​ | ​ | ​ | 9,500 | ​ | ​ | — | ​ | ​ | 9,500
Patents pending | ​ | ​ | ​ | ​ | 455 | ​ | ​ | — | ​ | ​ | 455
Total intangible assets | ​ | ​ | ​ | $ | 56,103 | ​ | $ | 5,728 | ​ | $ | 50,375
​
Schedule of future amortization expense | ​
​ | ​ | ​ | ​
(In thousands) | ​ | ​ | ​
2023 (April 1 - December 31) |  | $ | 2,849
2024 | ​ | ​ | 3,787
2025 | ​ |  | 3,698
2026 | ​ |  | 3,633
2027 | ​ |  | 3,623
Thereafter | ​ |  | 21,876
Total | ​ | $ | 39,466

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