Note 2 - Acquisitions and Divestitures (Details Textual)				3 Months Ended	12 Months Ended
	Jul. 27, 2022 USD ($) a	May 03, 2022 USD ($) a	Jan. 05, 2022 USD ($) shares	Dec. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) a
Repayments of Debt					$ 7,500,000	$ 6,547,000
Asset Retirement Obligation Assumed					1,831,000	13,040,000
Proceeds from Sale of Oil and Gas Property and Equipment					6,693,000	2,335,000
Gain (Loss) on Disposition of Oil and Gas Property						0
Asset Retirement Obligations, Relief Through Disposals				$ 500,000	500,000	200,000
Wells and Overriding Royalty Interests in North Dakota, New Mexico, and Texas [Member]
Proceeds from Sale of Oil and Gas Property and Equipment					7,000,000
Disposal Group,Transaction Costs					$ 400,000
Number of Wells Sold					152
Number of Overriding Royalty Interests Sold					7
Gain (Loss) on Disposition of Oil and Gas Property					$ 0
Waterflood Unit [Member]
Proceeds from Sale of Oil and Gas Property and Equipment						$ 1,200,000
Non-Operated Wells in Zavala County, Texas [Member]
Area of Land (Acre) | a						4,500
Proceeds from Sale of Oil and Gas Property and Equipment						$ 1,100,000
Number of Wells Sold						2
Percentage of Property Sold						30.00%
Lubbock Acquisition [Member]
Payments to Acquire Productive Assets			$ 125,000
Asset Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | shares			6,568,828
Banner Acquisition [Member]
Payments to Acquire Productive Assets			$ 1,000,000
Asset Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | shares			6,790,524
Banner Acquisition [Member] | Long-Term Debt [Member]
Asset Acquisition, Consideration Transferred, Liabilities Incurred			$ 3,300,000
Banner Acquisition [Member] | Derivative Financial Instruments, Liabilities [Member]
Asset Acquisition, Consideration Transferred, Liabilities Incurred			3,100,000
Synergy Acquisition [Member]
Payments to Acquire Productive Assets			$ 125,000
Asset Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | shares			6,546,384
January 2022 Acquisition [Member]
Payments to Acquire Productive Assets			$ 1,250,000
Asset Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | shares			19,905,736
Asset Acquisition, Consideration Transferred, Net			$ 66,400,000
Asset Acquisition, Consideration Transferred, Equity Interest Issued and Issuable			64,694,000
Asset Acquisition, Purchase Price Adjustment			487,000
Repayments of Debt			3,347,000
Asset Acquisition, Oil in Temporary Storage In Tank Batteries			1,286,000
Asset Retirement Obligation Assumed			9,614,000
January 2022 Acquisition [Member] | Derivative Financial Instruments, Liabilities [Member]
Asset Acquisition, Consideration Transferred, Liabilities Incurred			$ 3,100,000
Liberty County, Texas Acquisition [Member]
Payments to Acquire Oil and Gas Property		$ 1,000,000
Area of Land (Acre) | a		1,022
Suspense Accounts		$ 200,000
Asset Retirement Obligation Assumed		$ 500,000
East Texas Acquisition [Member]
Payments to Acquire Productive Assets	$ 11,875,000
Asset Acquisition, Purchase Price Adjustment	(1,048,000)
Asset Acquisition, Oil in Temporary Storage In Tank Batteries	$ 557,000
Area of Land (Acre) | a	16,600
Asset Retirement Obligation Assumed	$ 1,689,000