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Goodwill and Intangible Assets (Tables) | 9 Months Ended
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Sep. 30, 2020
Goodwill And Intangible Assets Disclosure [Abstract] |
Schedule of Change in Carrying Amount of Goodwill | The change in the carrying amount of goodwill for the year ended and nine-month period ended was as follows (in thousands):
|  | December 31, |  |  | September 30, |
|  | 2019 |  |  | 2020 |
|  |  |  |  |  | (unaudited) |
Beginning balance |  | $ | 8,060 |  |  | $ | 8,552 |
Additions attributable to acquisition |  |  | 492 |  |  |  | — |
Acquisition adjustments |  |  | — |  |  |  | 1,290 |
Ending balance |  | $ | 8,552 |  |  | $ | 9,842 |
Schedule of Carrying Amount and Amortization of Software and Intangible Assets | The useful life, gross carrying value, accumulated amortization, and net balance for each major class of definite-lived intangible assets at each balance sheet date were as follows (in thousands):
|  |  |  | December 31, 2019 |  |  | September 30, 2020 |
|  | Useful Life |  | Gross carrying amount |  |  | Accumulated amortization |  |  | Net balance |  |  | Gross carrying amount |  |  | Accumulated amortization |  |  | Net balance |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (unaudited) |  |  | (unaudited) |  |  | (unaudited) |
Unpatented technology |  | 3 - 7 years |  | $ | 14,660 |  |  | $ | (14,195 | ) |  | $ | 465 |  |  | $ | 14,660 |  |  | $ | (14,330 | ) |  | $ | 330 |
Customer relationships |  | 5 - 18 years |  |  | 19,300 |  |  |  | (5,631 | ) |  |  | 13,669 |  |  |  | 19,300 |  |  |  | (6,754 | ) |  |  | 12,546 |
Patents |  | 7 years |  |  | 11,300 |  |  |  | (11,300 | ) |  |  | — |  |  |  | 11,300 |  |  |  | (11,300 | ) |  |  | — |
Trademarks |  | 10 years |  |  | 5,270 |  |  |  | (4,304 | ) |  |  | 966 |  |  |  | 5,270 |  |  |  | (4,700 | ) |  |  | 570 |
Total |  |  |  | $ | 50,530 |  |  | $ | (35,430 | ) |  | $ | 15,100 |  |  | $ | 50,530 |  |  | $ | (37,084 | ) |  | $ | 13,446 |
Schedule of Estimated Amortization Expense of Capitalized Software and Intangible Assets | Based on capitalized intangible assets as of September 30, 2020, estimated amortization expense amounts in future fiscal years are as follows (unaudited and in thousands):
Year ending December 31, |  | Amortization |
2020 (October - December) |  | $ | 552 |
2021 |  |  | 2,118 |
2022 |  |  | 1,603 |
2023 |  |  | 1,498 |
2024 |  |  | 1,498 |
Thereafter |  |  | 6,177 |
Total amortization |  | $ | 13,446 |

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