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Impairment evaluations for intangible assets and goodwill (Tables)
6 Months Ended
Jun. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]  
Summary of carrying values, net of impairment of the intangible assets
The following table summarizes the carrying values, net of impairment of the intangible assets as at June 30, 2016:

 
June 30, 2016

December 31, 2015

IPR&D – Immune Modulators
73,243

183,103

IPR&D – Antigen Inhibitors
36,437

36,437

IPR&D – cccDNA Sterilizers
86,638

133,102

Total IPR&D
$
196,318

$
352,642