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Goodwill and Intangible Assets, Net (Tables) | 6 Months Ended
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Jun. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract] |
Changes in the Carrying Amount of Goodwill | Changes in the carrying amount of goodwill were as follows:
(In thousands) |
Balance at December 31, 2021 | $ | 48,463 |
Goodwill acquired during the period (1) | 713 |
Foreign exchange effects | (132) |
Balance at June 30, 2022 | $ | 49,044 |
(1) During the six months ended June 30, 2022, we recognized $0.7 million of goodwill related to the Qterics, Inc. ("Qterics") acquisition. Refer to Note 19 for further information about this acquisition.
Components of Intangible Assets, Net | The components of intangible assets, net were as follows:
| June 30, 2022 |  | December 31, 2021
(In thousands) | Gross (1) |  | Accumulated Amortization (1) |  | Net |  | Gross (1) |  | Accumulated Amortization (1) |  | Net
Capitalized software development costs | $ | 1,391 |  |  | $ | (52) |  |  | $ | 1,339 |  |  | $ | 1,066 |  |  | $ | (27) |  |  | $ | 1,039 |
Customer relationships | 6,340 |  |  | (2,718) |  |  | 3,622 |  |  | 5,000 |  |  | (2,375) |  |  | 2,625 |
Developed and core technology | 4,520 |  |  | (3,511) |  |  | 1,009 |  |  | 4,080 |  |  | (3,335) |  |  | 745 |
Distribution rights | 300 |  |  | (261) |  |  | 39 |  |  | 325 |  |  | (269) |  |  | 56 |
Patents | 26,650 |  |  | (9,773) |  |  | 16,877 |  |  | 24,518 |  |  | (9,015) |  |  | 15,503 |
Trademarks and trade names | 850 |  |  | (656) |  |  | 194 |  |  | 800 |  |  | (599) |  |  | 201 |
Total intangible assets, net | $ | 40,051 |  |  | $ | (16,971) |  |  | $ | 23,080 |  |  | $ | 35,789 |  |  | $ | (15,620) |  |  | $ | 20,169 |
(1)This table excludes the gross value of fully amortized intangible assets totaling $43.6 million and $43.2 million at June 30, 2022 and December 31, 2021, respectively.
Finite-lived Intangible Assets Amortization Expense | Amortization expense by statement of operations caption was as follows:
(In thousands) | Three Months Ended June 30, |  | Six Months Ended June 30,
2022 |  | 2021 |  | 2022 |  | 2021
Cost of sales | $ | 12 |  |  | $ | 4 |  |  | $ | 24 |  |  | $ | 8 |
Selling, general and administrative expenses | 989 |  |  | 712 |  |  | 1,910 |  |  | 1,546 |
Total amortization expense | $ | 1,001 |  |  | $ | 716 |  |  | $ | 1,934 |  |  | $ | 1,554 |
Estimated Future Amortization Expense Related to Intangible Assets | Estimated future annual amortization expense related to our intangible assets at June 30, 2022, was as follows:
(In thousands) |
2022 (remaining 6 months) | $ | 2,295 |
2023 | 4,592 |
2024 | 3,792 |
2025 | 3,031 |
2026 | 2,814 |
Thereafter | 6,556 |
Total | $ | 23,080 |

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