Note 7 - Income Taxes - Components of Income Before Income Taxes (Details) - USD ($)	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Domestic	$ 1,086,000	$ 666,000
Foreign	151,000	30,000
Income before income taxes	$ 1,237,000	$ 696,000

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and after deduction of income (loss) attributable to noncontrolling interest.

No definition available.

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- Definition

The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-10A

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

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- Definition

The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.

+ References

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