Commitments and contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and contingencies [Abstract]

Disclosure of future minimum lease payments

Future minimum lease payments for its premises and the minimum amount to exit the Company’s contractual commitments are as follows:

	Operating leases $	Purchase obligations $
2018	152	3,198
2019	56	2,716
	208	5,914