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, 2019
Dec. 31, 2018
Deferred tax assets (liabilities)    
Deferred tax assets $ 65,333 $ 50,374
Potential tax assets not recognized (65,333) (50,374)
Net deferred tax assets 0 0
Loss carry-forwards    
Deferred tax assets (liabilities)    
Deferred tax assets (liabilities) 56,533 44,264
Share issue costs    
Deferred tax assets (liabilities)    
Deferred tax assets (liabilities) 4,734 2,433
Deferred revenue, contingent consideration and royalty obligation    
Deferred tax assets (liabilities)    
Deferred tax assets (liabilities) 1,330 1,207
Property and equipment    
Deferred tax assets (liabilities)    
Deferred tax assets (liabilities) (14) 0
Intangible assets    
Deferred tax assets (liabilities)    
Deferred tax assets (liabilities) 1,128 1,248
SRED    
Deferred tax assets (liabilities)    
Deferred tax assets (liabilities) 1,354 991
Other    
Deferred tax assets (liabilities)    
Deferred tax assets (liabilities) $ 268 $ 231