Note 10 - Income Taxes - Income Tax Reconciliation (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Income taxes based on U.S. statutory rate of 21% and 34%, respectively	$ 1,054,000	$ 1,150,000
Non-deductible meals & entertainment	9,000	12,000
FDII deduction	5,000	6,000
Foreign taxes	(136,000)	(82,000)
State taxes	200,000	169,000
Stock Compensation	(33,000)	18,000
Other	2,000	(25,000)
Provision for income taxes	$ 1,091,000	$ 1,236,000