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

Property and equipment - Property, Plant and Equipment Rollforward (Details)

v3.19.1
Property and equipment - Property, Plant and Equipment Rollforward (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Changes in property, plant and equipment [abstract]    
As of beginning of period $ 31 $ 29
Additions 30 25
Disposal   (1)
Amortization (20) (22)
Net book value 41 31
Cost    
Changes in property, plant and equipment [abstract]    
As of beginning of period 231  
Net book value 169 231
Accumulated amortization    
Changes in property, plant and equipment [abstract]    
As of beginning of period (200)  
Net book value (128) (200)
Computer equipment and software    
Changes in property, plant and equipment [abstract]    
As of beginning of period 28 19
Additions 30 25
Disposal   (1)
Amortization (19) (15)
Net book value 39 28
Computer equipment and software | Cost    
Changes in property, plant and equipment [abstract]    
As of beginning of period 156  
Net book value 94 156
Computer equipment and software | Accumulated amortization    
Changes in property, plant and equipment [abstract]    
As of beginning of period (128)  
Net book value (55) (128)
Office equipment and furniture    
Changes in property, plant and equipment [abstract]    
As of beginning of period 3 5
Additions 0 0
Disposal   0
Amortization (1) (2)
Net book value 2 3
Office equipment and furniture | Cost    
Changes in property, plant and equipment [abstract]    
As of beginning of period 41  
Net book value 41 41
Office equipment and furniture | Accumulated amortization    
Changes in property, plant and equipment [abstract]    
As of beginning of period (38)  
Net book value (39) (38)
Leasehold improvements    
Changes in property, plant and equipment [abstract]    
As of beginning of period 0 5
Additions 0 0
Disposal   0
Amortization 0 (5)
Net book value 0 0
Leasehold improvements | Cost    
Changes in property, plant and equipment [abstract]    
As of beginning of period 34  
Net book value 34 34
Leasehold improvements | Accumulated amortization    
Changes in property, plant and equipment [abstract]    
As of beginning of period (34)  
Net book value $ (34) $ (34)