Note 12. Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Current:
Federal	$ 116	$ 500
State	13	95
Foreign	62	56
Total current	191	651
Deferred:
Federal	(59)	(130)
State	23	(17)
Foreign	(24)	(40)
Total deferred	(60)	(187)
Total expense (benefit) for income taxes	$ 131	$ 464