Basis of presentation and summary of significant accounting policies (Tables)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Schedules of Concentration of Risk

The following table shows number of customers exceeding 10% of the Company’s billed and unbilled receivable balances at December 31, 2021 and 2020:

	As of December 31,
	2021	2020
Accounts receivable	1	3
Unbilled receivable	1	3

The following table shows the amount of revenue derived from each customer exceeding 10% of the Company’s revenue during the years ended December 31, 2021, 2020 and 2019:

	For the years ended December 31,
	2021		2020		2019
Customer 1	11.6	%	21.3	%	23.1	%
Customer 2	11.0	%	11.8	%	14.8	%
Customer 3	n/a		n/a		13.0	%