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Intangible Assets (Tables) | 9 Months Ended
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Sep. 30, 2020
Intangible Assets |
Schedule of intangible assets | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | September 30, 2020 |  | December 31, 2019 |
​ | ​ | Gross Carrying Amount | ​ | Accumulated Amortization | ​ | Net Carrying Amount | ​ | Gross Carrying Amount | ​ | Accumulated Amortization | ​ | Net Carrying Amount | ​
Amortized intangible assets | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Patents | ​ | $ | 1,201 | ​ | $ | (122) | ​ | $ | 1,079 | ​ | $ | 845 | ​ | $ | (84) | ​ | $ | 761 | ​
License agreements | ​ | ​ | 1,089 | ​ | ​ | (720) | ​ | ​ | 369 | ​ | ​ | 1,067 | ​ | ​ | (647) | ​ | ​ | 420 | ​
Total amortizable intangible assets | ​ | $ | 2,290 | ​ | $ | (842) | ​ | $ | 1,448 | ​ | $ | 1,912 | ​ | $ | (731) | ​ | $ | 1,181 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unamortized intangible assets | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Trademarks | ​ | $ | 349 | ​ | $ | — | ​ | $ | 369 | ​ | $ | 334 | ​ | $ | — | ​ | $ | 334 | ​
Total intangible asset, net | ​ | $ | 2,639 | ​ | $ | (842) | ​ | $ | 1,797 | ​ | $ | 2,246 | ​ | $ | (731) | ​ | $ | 1,515 | ​
Schedule of future amortization | ​
​ | ​ | ​
Year Ending December 31, | ​ | ​
2020 (excluding nine months ended September 30, 2020) | $ | 40
2021 | ​ | 160
2022 | ​ | 160
2023 | ​ | 151
2024 | ​ | 67
Thereafter | ​ | 870
TOTAL | $ | 1,448

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