Concentration of credit risk (Tables)

3 Months Ended

Mar. 31, 2016

Accounts Receivable

Concentration of credit risk

Schedule of concentrations of 10% and greater

	As of		As of
	March 31,		December 31,
	2016		2015
Customer A	12	%	15	%
Customer C	20		*
Customer H	*		11

* Less than 10% accounts receivable concentration.

Revenue

Concentration of credit risk

Schedule of concentrations of 10% and greater

	Three Months Ended
	March 31,
	2016		2015
Customer A	17	%	20	%
Customer C	12		11
Customer G	11		*

* Less than 10% revenue concentration.