Note 8 - Asset Retirement Obligations - Asset Retirement Obligations Activity (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Beginning asset retirement obligations		$ 13,245	$ 7,502	$ 4,260
Liabilities incurred from new wells		747	445	573
Liabilities assumed in acquisitions		0	2,638	3,219
Liabilities divested		(208)	(81)	0
Revision of estimates (a)	[1]	0	2,219	(920)
Accretion of discount		966	522	370
Ending asset retirement obligations		$ 14,750	$ 13,245	$ 7,502

[1] The revisions to the Company’s asset retirement obligation estimates are primarily due to changes in the ultimate expected useful lives of the properties.