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Note 16 - Subsequent Events (Details Textual) - USD ($)			1 Months Ended	3 Months Ended				9 Months Ended		12 Months Ended
	Oct. 21, 2025	Oct. 09, 2025	Oct. 31, 2025	Dec. 31, 2025	Sep. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Impairment, Oil and Gas, Property with Unproved and Proved Reserves					$ 869,000		$ 1,424,000	$ 3,628,000	$ 6,843,000
Stock Issued During Period, Value, New Issues						$ 11,877,000
Asset Retirement Obligation, Liabilities Settled								$ 493,000		$ 5,435,000
Subsequent Event [Member] | West Texas Assets [Member]
Proceeds from Sale of Oil and Gas Property and Equipment	$ 60,000
Asset Retirement Obligation, Liabilities Settled			$ 5,100,000
Subsequent Event [Member] | Common Stock Purchase Agreement [Member]
Equity Agreement, Maximum Amount		$ 25,000,000
Equity Agreement, Discount on Stock Price, Percent		2.50%
Equity Agreement, Outstanding Shares, Percent		19.99%
Equity Agreement, Beneficial-Ownership Blocker, Percent		4.99%
Equity Agreement, Structuring Fee		$ 25,000
Stock Issued During Period, Shares, New Issues (in shares)		223,141
Stock Issued During Period, Value, New Issues		$ 270,000
Equity Agreement, Cash Commitment Fee		180,000
Credit Agreement [Member] | Subsequent Event [Member]
Proceeds from Lines of Credit			$ 1,000,000
Minimum [Member] | Forecast [Member]
Impairment, Oil and Gas, Property with Unproved and Proved Reserves				$ 800,000
Maximum [Member] | Subsequent Event [Member] | Common Stock Purchase Agreement [Member]
Equity Agreement, Cash Proceeds from Resale of Shares		$ 270,000
Maximum [Member] | Forecast [Member]
Impairment, Oil and Gas, Property with Unproved and Proved Reserves				$ 1,800,000

X

- Definition

Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset.

+ References

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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