Annual reports filed by certain Canadian issuers pursuant to Section 15(d) and Rule 15d-4

Income taxes - Disclosure of deferred tax assets (liabilities) (Details)

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Income taxes - Disclosure of deferred tax assets (liabilities) (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Deferred tax assets (liabilities)    
Deferred tax assets $ 50,374 $ 37,907
Potential tax assets not recognized (50,374) (37,907)
Net deferred tax assets 0 0
Loss carry-forwards    
Deferred tax assets (liabilities)    
Deferred tax assets (liabilities) 44,264 31,700
Deferred revenue and contingent consideration    
Deferred tax assets (liabilities)    
Deferred tax assets (liabilities) 1,207 1,175
Share issue costs    
Deferred tax assets (liabilities)    
Deferred tax assets (liabilities) 2,433 3,364
Property and equipment    
Deferred tax assets (liabilities)    
Deferred tax assets (liabilities) 0 2
Intangible assets    
Deferred tax assets (liabilities)    
Deferred tax assets (liabilities) 1,248 1,507
SRED    
Deferred tax assets (liabilities)    
Deferred tax assets (liabilities) 991 0
Other    
Deferred tax assets (liabilities)    
Deferred tax assets (liabilities) $ 231 $ 159