Note 5. Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Accumulated Amortization	$ (3,699)	$ (3,324)
Net Carrying Amount	2,450
Customer list
Gross Carrying Amount	1,770	1,770
Accumulated Amortization	(1,770)	(1,770)
Net Carrying Amount	0	0
Customer Relationships
Gross Carrying Amount	3,424	1,747
Accumulated Amortization	(1,099)	(811)
Net Carrying Amount	2,325	936
Proprietary software
Gross Carrying Amount	782	782
Accumulated Amortization	(717)	(680)
Net Carrying Amount	65	102
Trademarks - definite-lived [Member]
Gross Carrying Amount	173	173
Accumulated Amortization	(113)	(63)
Net Carrying Amount	60	110
Trademarks - indefinite-lived [Member]
Gross Carrying Amount	408	232
Accumulated Amortization	0	0
Net Carrying Amount	408	232
Total Intangible Assets
Gross Carrying Amount	6,557	4,704
Accumulated Amortization	(3,699)	(3,324)
Net Carrying Amount	$ 2,858	$ 1,380