Note 1 - Organization, Operations and Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Accounts Receivable, Allowance for Credit Loss	$ 0	$ 0
Oil and Natural Gas Receivables, Operated Properties [Member]
Accounts Receivable, Period of Collection (Month)	1 month
Oil and Natural Gas Receivables, Joint Interest Operator [Member] | Minimum [Member]
Accounts Receivable, Period of Collection (Month)	1 month
Oil and Natural Gas Receivables, Joint Interest Operator [Member] | Maximum [Member]
Accounts Receivable, Period of Collection (Month)	3 months