Note 8 - Income Taxes: Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Details
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	$ 2,704	$ 2,632	$ 2,580
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	262	255	250
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount	990	1,770	542
Effective Income Tax Rate Reconciliation, Deduction, Qualified Production Activity, Amount	(257)	(244)	(244)
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	3	21	(58)
Provision for income taxes	$ 3,702	$ 4,434	$ 3,070