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Goodwill and Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2020
Goodwill And Intangible Assets Disclosure [Abstract] |
Schedule of Changes in Goodwill | Changes in goodwill for the years ended December 31, 2020 and 2019 were (in thousands):
Balance at January 1, 2019 |  | $ | 14,204 |
Attributable to acquisition of Oncimmune, Ltd. |  |  | 827 |
Balance at December 31 2019 |  | $ | 15,031 |
Balance at December 31, 2020 |  | $ | 15,031 |
Schedule of Intangible Assets | Intangible assets consist of the following (in thousands):
|  | December 31, 2020 |  |  | December 31, 2019 |
|  | Cost |  |  | Accumulated Amortization |  |  | Net Carrying Value |  |  | Cost |  |  | Accumulated Amortization |  |  | Net Carrying Value |
Intangible assets subject to amortization |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Patents |  | $ | 1,474 |  |  | $ | (494 | ) |  | $ | 980 |  |  | $ | 1,245 |  |  | $ | (411 | ) |  | $ | 834 |
Purchased technology |  |  | 16,900 |  |  |  | (4,694 | ) |  |  | 12,206 |  |  |  | 16,900 |  |  |  | (2,817 | ) |  |  | 14,083 |
Purchase option |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 121 |  |  |  | (17 | ) |  |  | 104 |
Intangible assets not subject to amortization |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trademarks |  |  | 74 |  |  |  | — |  |  |  | 74 |  |  |  | 71 |  |  |  | — |  |  |  | 71 |
Total |  | $ | 18,448 |  |  | $ | (5,188 | ) |  | $ | 13,260 |  |  | $ | 18,337 |  |  | $ | (3,245 | ) |  | $ | 15,092 |
Schedule of Amortization Expense Related to Definite-Lived Intangible Assets | Amortization expense related to definite-lived intangible assets was (in thousands):
|  | Year ended December 31, |
|  | 2020 |  |  | 2019 |
Direct costs and expenses |  | $ | 13 |  |  | $ | 15 |
Sales, marketing, general and administrative |  |  | 2,051 |  |  |  | 1,959 |
Total |  | $ | 2,064 |  |  | $ | 1,974 |
Schedule of Future Estimated Amortization Expense of Intangible Assets | Future estimated amortization expense of intangible assets is (in thousands):
|  | As of December 31, 2020 |
2021 |  | $ | 1,946 |
2022 |  |  | 1,940 |
2023 |  |  | 1,936 |
2024 |  |  | 1,928 |
2025 |  |  | 1,924 |
Thereafter |  |  | 3,512 |
Total |  | $ | 13,186 |

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