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Patent Licenses (Tables)
9 Months Ended
Sep. 30, 2015
Goodwill And Intangible Assets Disclosure [Abstract]  
Summary of Future Amortization Expense Related to Intangible Assets Subject to Amortization

At September 30, 2015, future amortization expense related to intangible assets subject to amortization is expected to be as follows (in thousands):

 

 

 

Amount

 

2015 (remaining three months)

 

$

26

 

2016

 

 

83

 

2017

 

 

83

 

2018

 

 

83

 

2019

 

 

50

 

Thereafter

 

 

2,750

 

Total

 

$

3,075