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Intangible Assets (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2019
Intangible Assets |
Schedule of intangible assets | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, |  | December 31, |
​ | ​ | 2019 | ​ | 2018 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
License agreements | ​ | $ | 1,067 | ​ | $ | 1,034 | ​
Less: accumulated amortization | ​ | ​ | (647) | ​ | ​ | (553) | ​
License agreements, net | ​ | $ | 420 | ​ | $ | 481 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Trademarks | ​ | ​ | 334 | ​ | ​ | 255 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Patents | ​ | ​ | 845 | ​ | ​ | 500 | ​
Less: accumulated amortization | ​ |  | (84) | ​ |  | (55) | ​
Patents, net | ​ | $ | 761 | ​ | $ | 445 | ​
Intangible assets, net | ​ | $ | 1,515 | ​ | $ | 1,181 | ​
Schedule of future amortization | ​
​ | ​
Year Ending December 31, | ​
2020 | 137
2021 | 137
2022 | 138
2023 | 119
2024 | 47
Thereafter | 603
TOTAL | 1,181

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