Note 14 - Variable Interest Entity - Schedule of Aggregate Net Funding (Details) - Genie Retail Energy (“GRE”) [Member] - Variable Interest Entity, Primary Beneficiary [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Net income (loss)	$ 230	$ (132)	$ 8	$ (158)
Aggregate (funding provided by) distributions paid to the Company, net	$ 373	$ (21)	$ 133	$ 71