Consolidated Statements of Operations - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018
REVENUES:
Electricity		$ 263,091	$ 227,883
Natural gas		39,926	46,560
Other		12,274	5,866
Total revenues		315,291	280,309
Cost of revenues		232,392	203,762
GROSS PROFIT		82,899	76,547
OPERATING EXPENSES AND LOSSES:
Selling, general and administrative	[1]	72,467	61,544
Exploration			244
Research and development expense		207	39
Impairment of assets		400	2,742
Income from operations		9,825	11,978
Interest income		448	557
Interest expense		(530)	(401)
Equity in the net loss in equity method investees		(4,830)	(3,430)
Gain on extinguishment of liability			164
Other income, net		1,066	156
Income before income taxes		5,979	9,024
(PROVISION FOR) BENEFIT FROM INCOME TAXES		(4,600)	12,376
NET INCOME		1,379	21,400
Net loss attributable to noncontrolling interests		2,796	1,385
NET INCOME ATTRIBUTABLE TO GENIE ENERGY LTD.		4,175	22,785
Dividends on preferred stock		(1,481)	(1,481)
NET INCOME ATTRIBUTABLE TO GENIE ENERGY LTD. COMMON STOCKHOLDERS		$ 2,694	$ 21,304
Earnings per share attributed to Genie Energy Ltd. common stockholder
Basic		$ 0.10	$ 0.85
Diluted		$ 0.10	$ 0.83
Weighted-average number of shares used in calculation of earnings per share
Basic		26,607	25,154
Diluted		27,464	25,695
Dividends declared per common share		$ 0.30	$ 0.30

[1] Stock-based compensation included in selling, general and administrative expenses