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Note 3 - Acquisitions (Details Textual) $ in Millions |  |  |  | 6 Months Ended
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Jun. 27, 2022 shares | Jun. 21, 2022 shares | Mar. 25, 2022 shares | Jun. 30, 2022 USD ($) a shares
Asset Acquisition, Consideration Transferred, Total | $ |  |  |  | $ 515.4
Stock Issued During Period, Shares, Acquisitions (in shares) | shares | 3,522,117 | 371,517 |  |
Flat Top Operating Area [Member] |  |  |  |
Acquisition, Area of Working Interests in Producing Properties and Salt-water Disposal Wells (Acre) | a |  |  |  | 34,500
Stock Issued During Period, Shares, Acquisitions (in shares) | shares |  |  | 6,960,000 | 10,853,634
Payments to Acquire Oil and Gas Property and Equipment, Total | $ |  |  |  | $ 265.0

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- Definition Amount of consideration transferred in asset acquisition. Includes, but is not limited to, cash, liability incurred by acquirer, and equity interest issued by acquirer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 50 -Section 30 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=126928898&loc=d3e9215-128498 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 50 -Section 55 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6829253&loc=SL6831962-166255 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 50 -Section 25 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=127000608&loc=d3e9135-128495 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 50 -Section 30 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=126928898&loc=d3e9212-128498 + Details
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- Definition The cash outflow to purchase long lived physical asset for use in the normal oil and gas operations and to purchase mineral interests in oil and gas properties not intended for resale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3213-108585 + Details
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