Note 1 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

Schedule of Asset Retirement Obligations [Table Text Block]

	Year Ended December 31,
	2023			2022
Balance, beginning of year	$	20,834		$	14,125
Merom acquisition		—			7,230
Freelandville addition		—			1,631
Accretion		1,804			1,010
Change in estimate		(2,566	)		—
Payments		(3,384	)		(3,162	)
Balance, end of year		16,688			20,834
Less current portion		(2,150	)		(3,580	)
Long-term balance, end of year	$	14,538		$	17,254