Note 7 - Commodity Derivatives - Schedule of Derivative Gains and Losses (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Jan. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Total derivative settlement gains (losses)		$ (656)	$ (7,140)
Derivative, Gain (Loss) on Derivative, Net	$ 3,100	2,882	(5,682)
Oil Contracts [Member]
Total derivative settlement gains (losses)		(628)	(6,277)
Derivative, Gain (Loss) on Derivative, Net		2,822	(4,941)
Gas Contracts [Member]
Total derivative settlement gains (losses)		(28)	(863)
Derivative, Gain (Loss) on Derivative, Net		$ 60	$ (741)