Note 9 - Income Taxes (Details Textual)	60 Months Ended
Dec. 31, 2022 USD ($)
Operating Loss Carryforwards	$ 23,900,000
Net Operating Loss That Can Be Carried Forward Indefinitely	12,994,000
Tax Year 2022 [Member]
Operating Loss Carryforwards	$ 9,100,000

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319

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