Note 10 - Income Taxes (Details Textual) $ in Thousands	12 Months Ended
Dec. 31, 2022 USD ($)
Unrecognized Tax Benefits, Ending Balance	$ 0
Domestic Tax Authority [Member]
Open Tax Year	2019
State and Local Jurisdiction [Member]
Open Tax Year	2018 2019 2020 2021 2022
Operating Loss Carryforwards	$ 1,700

Tax year that remains open to examination under enacted tax laws, in YYYY format.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

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-Publisher FASB
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Amount of unrecognized tax benefits.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 10
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