Note 11. Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Beginning Balance	$ (2,273)	$ (2,997)	$ (3,584)	$ (3,679)
Other comprehensive income (loss) before reclassifications	608	79	1,919	568
Reclassification to (earnings) loss	0	0	0	193
Ending Balance	(1,665)	(2,918)	(1,665)	(2,918)
Foreign Currency Translation Adjustments
Beginning Balance	(2,259)	(2,871)	(3,447)	(2,992)
Other comprehensive income (loss) before reclassifications	562	42	1,750	163
Reclassification to (earnings) loss	0	0	0	0
Ending Balance	(1,697)	(2,829)	(1,697)	(2,829)
Investment Gain (Loss)
Beginning Balance	(14)	(126)	(137)	(687)
Other comprehensive income (loss) before reclassifications	46	37	169	405
Reclassification to (earnings) loss	0	0	0	193
Ending Balance	$ 32	$ (89)	$ 32	$ (89)