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Discontinued Operations (Details 1) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Schedule of Equity Method Investments [Line Items]
Income from operations	$ 11,275	$ 26,962
Income before income taxes	15,405	25,779
(Provision for) benefit from income taxes	(4,068)	(7,112)
Net income (loss) from discontinued operations, net of tax	3,055	(1,932)
Lumo Finland and Lumo Sweden [Member]
Schedule of Equity Method Investments [Line Items]
Revenues		12,603
Cost of revenues		14,169
Gross loss		(1,566)
Selling, general and administrative expenses		965
Income from operations		(2,531)
Other income	250
Income before income taxes	250	(2,531)
(Provision for) benefit from income taxes	(68)	599
Net income (loss) from discontinued operations, net of tax	182	(1,932)
Income (loss) before income taxes attributable to Genie Energy Ltd.	$ 250	$ (2,343)

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