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

Significant accounting policies, judgments and estimation uncertainty (Schedule of Depreciation Rate) (Details)

v3.19.1
Significant accounting policies, judgments and estimation uncertainty (Schedule of Depreciation Rate) (Details)
12 Months Ended
Dec. 31, 2018
Computer equipment [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Rate of depreciation of property and equipment 30%
Computer software [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Rate of depreciation of property and equipment 100%
Furniture and fixtures [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Rate of depreciation of property and equipment 20%
Laboratory equipment [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Rate of depreciation of property and equipment 20%
Leasehold improvements and leased premises [Member]  
Disclosure of detailed information about property, plant and equipment [line items]  
Rate of depreciation of property and equipment straight-line