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Intangible Assets (Tables) | 6 Months Ended
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Jun. 30, 2020
Intangible Assets |
Schedule of intangible assets | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | June 30, | ​ | December 31, |
​ | ​ | 2020 | ​ | 2019 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
License agreements | ​ | $ | 1,080 | ​ | $ | 1,067 | ​
Less: accumulated amortization | ​ | ​ | (696) | ​ | ​ | (647) | ​
License agreements, net | ​ | $ | 384 | ​ | $ | 420 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Trademarks | ​ | ​ | 350 | ​ | ​ | 334 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Patents | ​ | ​ | 1,033 | ​ | ​ | 845 | ​
Less: accumulated amortization | ​ |  | (107) | ​ |  | (84) | ​
Patents, net | ​ | $ | 926 | ​ | $ | 761 | ​
Intangible assets, net | ​ | $ | 1,660 | ​ | $ | 1,515 | ​
Schedule of future amortization | ​
​ | ​ | ​
Year Ending December 31, | ​ | ​
2020 (excluding six months ended June 30, 2020) | $ | 76
2021 | ​ | 154
2022 | ​ | 154
2023 | ​ | 112
2024 | ​ | 54
Thereafter | ​ | 760
TOTAL | $ | 1,310

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