Note 5 - Derivative Financial Instruments - Price Risk Derivative Contracts (Details) - Not Designated as Hedging Instrument [Member] - Forecast [Member]	3 Months Ended
	Mar. 31, 2027 MMBTU $ / MMBTU	Dec. 31, 2026 MMBTU $ / MMBTU	Sep. 30, 2026 MMBTU $ / MMBTU	Jun. 30, 2026 MMBTU $ / MMBTU	Mar. 31, 2026 MMBTU $ / MMBTU $ / bbl bbl	Dec. 31, 2025 MMBTU $ / MMBTU $ / bbl bbl	Sep. 30, 2025 MMBTU $ / MMBTU $ / bbl bbl	Jun. 30, 2025 MMBTU $ / MMBTU $ / bbl bbl
Natural Gas Derivative Swap [Member]
MMBtu Per Day (Millions of British Thermal Unit) | MMBTU	19,667	30,000	30,000	30,000	19,667	30,000	30,000	30,000
Price per MMBtu (in USD per Millions of British Thermal Unit) | $ / MMBTU	4.3	4.3	4.3	4.3	4.43	4.43	4.43	4.43
Crude Oil Derivative Swap [Member]
Bbls per day (Barrel of Oil) | bbl							3,000	5,500
Price per Bbl (in USD per Barrel of Oil)							75.85	76.37
Floor or Strike Price per Bbl (in USD per Barrel of Oil)							0	0
Ceiling Price per Bbl (in USD per Barrel of Oil)							0	0
Deferred Premium Payable per Bbl (in USD per Barrel of Oil)							0	0
Crude Oil Derivative Collar [Member]
Bbls per day (Barrel of Oil) | bbl					5,000	5,000	7,000	7,989
Price per Bbl (in USD per Barrel of Oil)					0	0	0	0
Floor or Strike Price per Bbl (in USD per Barrel of Oil)					60	60	65	64.38
Ceiling Price per Bbl (in USD per Barrel of Oil)					72.8	72.8	90.08	88.55
Deferred Premium Payable per Bbl (in USD per Barrel of Oil)					0	0	2.28	2
Crude Oil Derivative Put [Member]
Bbls per day (Barrel of Oil) | bbl							9,000	9,000
Price per Bbl (in USD per Barrel of Oil)							0	0
Floor or Strike Price per Bbl (in USD per Barrel of Oil)							65.78	65.78
Ceiling Price per Bbl (in USD per Barrel of Oil)							0	0
Deferred Premium Payable per Bbl (in USD per Barrel of Oil)							5	5