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v3.23.1

Note 8 - Income Taxes (Details Textual) | 3 Months Ended
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Mar. 31, 2023
Domestic Tax Authority [Member] |
Open Tax Year | 2018 2019 2020 2021 2022

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- Definition Tax year that remains open to examination under enacted tax laws, in YYYY format. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-15 + Details
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Data Type: | dtr-types:gYearListItemType
Balance Type: | na
Period Type: | duration

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- Details
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Data Type: | na
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Period Type: |