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Note 10 - Income Taxes - Operating Loss Carryforwards (Details) - USD ($) | Dec. 31, 2022 | Dec. 31, 2021
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Domestic Tax Authority [Member] |  |
Operating loss carryforwards | $ 34,116,553 | $ 23,442,045
State and Local Jurisdiction [Member] |  |
Operating loss carryforwards | $ 30,727,733 | $ 23,436,624

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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References 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 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
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Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |