Note 8 - Income Taxes: Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Details
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	$ 2,998	$ 2,704	$ 2,632
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	291	262	255
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount	1,270	990	1,770
Effective Income Tax Rate Reconciliation, Deduction, Qualified Production Activity, Amount	(287)	(257)	(244)
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	22	3	21
Provision for income taxes	$ 4,294	$ 3,702	$ 4,434