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Note 6 - Other Investments (Details Textual) - RGC Midstream LLC [Member] | Dec. 31, 2023
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MVP Southgate Investment [Member] |
Subsidiary, Ownership Percentage, Noncontrolling Owner | 1.00%
MVP [Member] |
Equity Method Investment, Ownership Percentage | 1.00%

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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481687/323-10-50-3 + Details
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- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. + References No definition available. + Details
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- Details
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- Details
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- Details
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