| Schedule of finite lived intangible assets |
| | | | | | | | | | | | | | Weighted- | | At June 30, 2025 | | | Average | | Gross | | | | | | | Amortization | | Carrying | | Accumulated | | Net | (In thousands) | | Period | | Amount | | Amortization | | Amount | Definite-lived intangible assets: | | | | | | | | | | | | Patents | | 11 years | | $ | 1,065 | | $ | 315 | | $ | 750 | Defensive intangible assets | | — | | | 1,125 | | | 1,125 | | | — | Customer accounts | | — | | | 125 | | | 125 | | | — | Customer relationships | | 9 years | | | 31,000 | | | 9,088 | | | 21,912 | Developed technology | | 7 years | | | 13,000 | | | 4,504 | | | 8,496 | Subtotal | | | | | 46,315 | | | 15,157 | | | 31,158 | Unamortized intangible assets: | | | | | | | | | | | | Tradenames | | | | | 9,500 | | | — | | | 9,500 | Patents pending | | | | | 246 | | | — | | | 246 | Total intangible assets | | | | $ | 56,061 | | $ | 15,157 | | $ | 40,904 |
| | | | | | | | | | | | | | Weighted- | | At December 31, 2024 | | | Average | | Gross | | | | | | | Amortization | | Carrying | | Accumulated | | Net | (In thousands) | | Period | | Amount | | Amortization | | Amount | Definite-lived intangible assets: | | | | | | | | | | | | Patents | | 12 years | | $ | 1,148 | | $ | 333 | | $ | 815 | Defensive intangible assets | | < 1 year | | | 1,125 | | | 1,065 | | | 60 | Customer accounts | | — | | | 125 | | | 125 | | | — | Customer relationships | | 10 years | | | 31,000 | | | 7,896 | | | 23,104 | Developed technology | | 8 years | | | 13,000 | | | 3,913 | | | 9,087 | Subtotal | | | | | 46,398 | | | 13,332 | | | 33,066 | Unamortized intangible assets: | | | | | | | | | | | | Tradenames | | | | | 9,500 | | | — | | | 9,500 | Patents pending | | | | | 223 | | | — | | | 223 | Total intangible assets | | | | $ | 56,121 | | $ | 13,332 | | $ | 42,789 |
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