Note 9 - Options: Schedule of Share-based Compensation, Stock Options, Activity (Details) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures	39		13
Price Range Per Share Granted	49.18 - 50.72		33.30 - 33.30
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period	4	3	19
Price Range Per Share Expired	25.59 - 49.18	17.71 - 33.30	24.00 - 28.13
Price Range Per Share Exercised	18.00 - 33.30	17.71 - 33.30	15.01 - 31.33
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	91	91	150
Price Range Per Share Outstanding	21.68 - 50.72	18.00 - 33.30	17.71 - 33.30
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number	48	77	120
Price Range Per Share Total Exercisable	21.68 - 33.30	18.00 - 33.30	17.71 - 31.33
Common Stock
Common stock issued upon exercise of employee stock options, shares	35	55	82