Note 17. Concentrations (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Sales
Concentration Risk, Customer	three customers in China accounted for 21%, 13% and 11% of total sales	three customers accounted for 12%, 27% and 31% of the total sales
Accounts Receivable
Concentration Risk, Customer	three customers accounted for 18%, 14% and 13% of total accounts receivable	three customers accounted for 29%, 13% and 12% of the total accounts receivable