Note 7. Revenue (Tables)

6 Months Ended

Jun. 30, 2019

Revenue from Contract with Customer [Abstract]

Concentration of revenue as a percentage of total revenue

	Three months ended June 30,
Revenue Streams	2019				2018
Platform and Technology	$	2,661	64.3	%	$	2,246	59.1	%
Services		1,477	35.7	%		1,553	40.9	%
Total	$	4,138	100.0	%	$	3,799	100.0	%

	Six months ended June 30,
Revenue Streams	2019				2018
Platform and Technology	$	5,326	64.0	%	$	4,277	58.4	%
Services		2,991	36.0	%		3,052	41.6	%
Total	$	8,317	100.0	%	$	7,329	100.0	%

Revenue by geographic region

	Three months ended				Six months ended
	June 30,				June 30,
	2019		2018		2019		2018
Geographic region
North America	$	3,993	$	3,599	$	8,020	$	6,922
Europe		145		200		297		407
Total revenues	$	4,138	$	3,799	$	8,317	$	7,329