Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenues:
Revenues	$ 105,251	$ 90,696	$ 242,058	$ 210,384
Cost of revenues	81,771	57,360	181,215	143,262
Gross profit	23,480	33,336	60,843	67,122
Operating expenses:
Selling, general and administrative (i)	21,177	22,015	45,064	44,916
Provision for captive insurance liability	265	640	910	1,676
Impairment of assets	35	118	35	118
Income from operations	2,003	10,563	14,834	20,412
Interest income	1,998	1,362	3,979	2,702
Interest expense	(156)	(331)	(345)	(363)
Gain on marketable equity securities and other investments	505	110	673	227
Other (loss) income, net	(451)	1,262	(457)	1,342
Income before income taxes	3,899	12,966	18,684	24,320
Provision for income taxes	(1,079)	(3,465)	(5,458)	(6,385)
Net income from continuing operations	2,820	9,501	13,226	17,935
Income (loss) from discontinued operations, net of taxes	47	(145)	(57)	(410)
Net income (loss)	2,867	9,356	13,169	17,525
Net income (loss) attributable to noncontrolling interests, net	45	(256)	(284)	(210)
Net income attributable to Genie Energy Ltd. common stockholders	2,822	9,612	13,453	17,735
Net income (loss) attributable to Genie Energy Ltd. common stockholders
Continuing operations	2,775	9,757	13,510	18,145
Discontinued operations	47	(145)	(57)	(410)
Net income attributable to Genie Energy Ltd. common stockholders	$ 2,822	$ 9,612	$ 13,453	$ 17,735
Basic:
Continuing operations, basic (in dollars per share)	$ 0.11	$ 0.37	$ 0.51	$ 0.68
Discontinued operations, basic (in dollars per share)	0	(0.01)	0	(0.02)
Earnings per share attributable to Genie Energy Ltd. common stockholders (in dollars per share)	0.11	0.36	0.51	0.66
Diluted
Continuing operations, diluted (in dollars per share)	0.11	0.37	0.51	0.67
Discontinued operations, diluted (in dollars per share)	0	(0.01)	0	(0.02)
Earnings per share attributable to Genie Energy Ltd. common stockholders (in dollars per share)	$ 0.11	$ 0.36	$ 0.51	$ 0.65
Weighted-average number of shares used in calculation of earnings per share:
Basic (in shares)	26,173	26,569	26,287	26,760
Diluted (in shares)	26,516	27,033	26,631	27,272
Dividends on common stock declared (in dollars per share)	$ 0.075	$ 0.075	$ 0.15	$ 0.15
(i) Stock-based compensation included in selling, general and administrative expenses	$ 606	$ 458	$ 1,345	$ 1,207
Electricity [Member]
Revenues:
Revenues	89,885	78,301	193,948	167,697
Oil and Gas [Member]
Revenues:
Revenues	9,107	8,414	37,516	30,812
Product and Service, Other [Member]
Revenues:
Revenues	$ 6,259	$ 3,981	$ 10,594	$ 11,875