Note 7 - Income Taxes: Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands			12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Details
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	$ 2,794	$ 2,346			$ 2,620
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	504	439			490
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount	(1)	951			1,129
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount	(18)	(3)			(3)
Interest Income, Securities, Operating, Tax Exempt	(201)	(195)			0
Adjustment To Deferred Tax Liability	0	0			0
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	(150)	(84)			(50)
Provision for income taxes (note 7)	$ 2,928	$ 3,454	$ 2,928	$ 3,454	$ 4,186