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Intangible Assets (Tables)
9 Months Ended
Sep. 30, 2019
Intangible Assets  
Schedule of intangible assets

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September 30,

    

December 31,

    

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2019

​

2018

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License agreements

​

$

1,067

​

$

1,034

​

Less: accumulated amortization

​

​

(624)

​

​

(553)

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License agreements, net

​

$

443

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$

481

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​

​

​

​

​

​

​

​

Patents

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​

1,118

​

​

755

​

Less: accumulated amortization

​

 

(73)

​

 

(55)

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Patents, net

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$

1,045

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$

700

​

Intangible assets, net

​

$

1,488

​

$

1,181

​