Basis of preparation (Tables)

12 Months Ended

Dec. 31, 2017

Basis of Preparation [Abstract]

Disclosure of major categories of property and equipment amortization

The major categories of property and equipment are amortized on a straight-line basis as follows:

Leasehold improvements	term of the lease
Office equipment and furniture	5 years
Computer equipment and software	3 years

	Leasehold improvements $		Office equipment and furniture $		Computer equipment and software $		Total $
Year ended December 31, 2017
As at January 1, 2017	5		5		19		29
Additions	—		—		25		25
Disposal	—		—		(1	)	(1	)
Amortization	(5	)	(2	)	(15	)	(22	)
Net book value	—		3		28		31
As at December 31, 2017
Cost	34		41		156		231
Accumulated amortization	(34	)	(38	)	(128	)	(200	)
Net book value	—		3		28		31
Year ended
Year ended December 31, 2016
As at January 1, 2016	16		8		12		36
Additions	—		—		15		15
Amortization	(11	)	(3	)	(8	)	(22	)
Net book value	5		5		19		29
As at December 31, 2016
Cost	34		41		139		214
Accumulated amortization	(29	)	(36	)	(120	)	(185	)
Net book value	5		5		19		29