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Note 1 - Nature of Activities and Summary of Significant Accounting Policies - Schedule of Dilutive Securities (Details) (Parentheticals) - $ / shares | Dec. 31, 2022 | Dec. 31, 2021
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Debt with Conversion Feature [Member] |  |
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ 30 | $ 30

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- Definition The price per share of the conversion feature embedded in the debt instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123466204&loc=SL6031898-161870 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 + Details
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- Details
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