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Note 7 - Income Taxes - Components of Provision (Benefit) for Income Taxes (Details) - USD ($)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Federal $ (83,000) $ 940,000
State (190,000) 115,000
Foreign 337,000 135,000
Total current 64,000 1,190,000
Federal (380,000) (672,000)
State 30,000 (77,000)
Foreign (9,000) (10,000)
Total deferred (359,000) (759,000)
Income Tax Expense (Benefit) $ (295,000) $ 431,000