Revenue (Tables)

3 Months Ended

Mar. 31, 2022

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following table sets forth our net revenues by category:

	Three Months Ended March 31,
	2022		2021
Platform revenue	$	2,492	$	1,646
Hardware revenue	4,286		—
Net revenues	$	6,778	$	1,646

Schedules of Concentration Risk

The following table sets forth our concentration of accounts receivable, net of specific allowances for doubtful accounts.

	March 31, 2022		December 31, 2021
Customer A	19	%	—	%
Customer B	14	%	—	%
Customer C	10	%	18	%
Customer D	—	%	20	%

The following table sets forth our concentration of revenue sources as a percentage of total net revenues.

	Three Months Ended March 31,
	2022		2021
Customer B	1	%	15	%
Customer E	—	%	17	%
Customer F	—	%	13	%
Customer G	1	%	10	%

Deferred Revenue

Our deferred revenue balance consisted of the following:

	March 31, 2022		December 31, 2021
Current deferred revenue
Platform revenue	$	1,919	$	1,824
Hardware revenue	1,344		2,149
Total current deferred revenue	$	3,263	$	3,973
Non-current deferred revenue
Platform revenue	$	1,008	$	1,299
Total non-current deferred revenue	$	1,008	$	1,299
Total deferred revenue	$	4,271	$	5,272