Note 7. Revenue (Tables)

3 Months Ended

Mar. 31, 2019

Revenue from Contract with Customer [Abstract]

Concentration of revenue as a percentage of total revenue

	Three months ended March 31,
Revenue Streams	2019				2018
Platform and Technology	$	2,665	63.8	%	$	2,032	57.6	%
Services		1,514	36.2	%		1,498	42.4	%
Total	$	4,179	100.0	%	$	3,530	100.0	%

Revenue by geographic region

	Three months ended
	March 31,
	2019		2018
Geographic region
North America	$	4,027	$	3,323
Europe		152		207
Total revenues	$	4,179	$	3,530