Note 17 - Supplemental Crude Oil and Natural Gas Disclosures (Unaudited) - Changes in Proved and Unproven Reserves (Details) Mcfe in Thousands	12 Months Ended
	Dec. 31, 2024 MMBoe MBoe Mcfe	Dec. 31, 2023 MMBoe MBoe Mcfe	Dec. 31, 2022 MBoe Mcfe
Proved Reserves (Thousand Barrels of Oil Equivalent)	154,162	122,958	64,213
Beginning proved undeveloped reserves (Millions of Barrels of Oil Equivalent) | MMBoe	74,569
Undeveloped reserves transferred to proved developed (Millions of Barrels of Oil Equivalent) | MMBoe	(18,050)
Extensions and discoveries (Millions of Barrels of Oil Equivalent) | MMBoe	33,540
Purchase of reserves-in-place (Millions of Barrels of Oil Equivalent) | MMBoe	(0)
Extensions and discoveries (Thousand Barrels of Oil Equivalent)	45,104	65,148	57,987
Revisions (Millions of Barrels of Oil Equivalent) | MMBoe	820
Ending proved undeveloped reserves (Millions of Barrels of Oil Equivalent) | MMBoe	90,879	74,569
Purchase of reserves-in-place (Thousand Barrels of Oil Equivalent)		171	18,906
Revisions of previous estimates (Thousand Barrels of Oil Equivalent)	18,017	(16,093)	(9,211)
Production (Thousand Barrels of Oil Equivalent)	(18,285)	(16,635)	(8,937)
Sales of reserves-in-place (Thousand Barrels of Oil Equivalent)		(1,387)
Proved Reserves (Thousand Barrels of Oil Equivalent)	198,998	154,162	122,958
Oil [Member]
Proved Reserves (Thousand Barrels of Oil Equivalent)	119,554	98,816	51,825
Extensions and discoveries (Thousand Barrels of Oil Equivalent)	34,971	54,137	47,677
Purchase of reserves-in-place (Thousand Barrels of Oil Equivalent)		89	13,031
Revisions of previous estimates (Thousand Barrels of Oil Equivalent)	(5,378)	(18,432)	(6,155)
Production (Thousand Barrels of Oil Equivalent)	(13,876)	(13,885)	(7,562)
Sales of reserves-in-place (Thousand Barrels of Oil Equivalent)		(1,171)
Proved Reserves (Thousand Barrels of Oil Equivalent)	135,271	119,554	98,816
Natural Gas Liquids (NGL) [Member]
Proved Reserves (Thousand Barrels of Oil Equivalent)	20,096	14,369	7,378
Extensions and discoveries (Thousand Barrels of Oil Equivalent)	5,387	6,456	6,162
Purchase of reserves-in-place (Thousand Barrels of Oil Equivalent)		47	3,467
Revisions of previous estimates (Thousand Barrels of Oil Equivalent)	10,919	898	(1,817)
Production (Thousand Barrels of Oil Equivalent)	(2,284)	(1,547)	(821)
Sales of reserves-in-place (Thousand Barrels of Oil Equivalent)		(127)
Proved Reserves (Thousand Barrels of Oil Equivalent)	34,118	20,096	14,369
Natural Gas [Member]
Proved Reserves (Thousand Barrels of Oil Equivalent) | Mcfe	87,071	58,638	30,061
Extensions and discoveries (Thousand Barrels of Oil Equivalent) | Mcfe	28,476	27,330	24,887
Purchase of reserves-in-place (Thousand Barrels of Oil Equivalent) | Mcfe		208	14,448
Revisions of previous estimates (Thousand Barrels of Oil Equivalent) | Mcfe	74,854	8,644	(7,435)
Production (Thousand Barrels of Oil Equivalent) | Mcfe	(12,747)	(7,218)	(3,323)
Sales of reserves-in-place (Thousand Barrels of Oil Equivalent) | Mcfe		(531)
Proved Reserves (Thousand Barrels of Oil Equivalent) | Mcfe	177,654	87,071	58,638