Genie Energy (GNE) 10-K 16 Mar 20 2019 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Mar. 11, 2020	Jun. 30, 2018
Entity Registrant Name	Genie Energy Ltd.
Entity Central Index Key	0001528356
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Type	10-K
Document Period End Date	Dec. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Filer Category	Accelerated Filer
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Shell Company	false
Entity Current Reporting Status	Yes
Entity Small Business	true
Entity Emerging Growth Company	false
Entity File Number	1-35327
Entity Interactive Data Current	Yes
Entity Incorporation, State or Country Code	DE
Entity Public Float			$ 191.3
Class A common stock
Entity Common Stock, Shares Outstanding		1,574,326
Class B common stock
Entity Common Stock, Shares Outstanding		24,763,416

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
CURRENT ASSETS:
Cash and cash equivalents	$ 31,242	$ 41,601
Restricted cash - short-term	6,792	1,653
Trade accounts receivable, net of allowance for doubtful accounts of $2,631 and $2,003 at December 31, 2019 and 2018, respectively	49,822	35,920
Inventory	16,632	9,893
Prepaid expenses	6,318	6,167
Other current assets	2,133	2,670
TOTAL CURRENT ASSETS	112,939	97,904
Property and equipment, net	3,607	4,301
Goodwill	12,135	11,082
Other intangibles, net	6,837	6,321
Investment in equity method investees	675	2,208
Restricted cash - long-term	520	943
Deferred income tax assets, net	12,154	15,625
Other assets	7,377	8,480
TOTAL ASSETS	156,244	146,864
CURRENT LIABILITIES:
Loans payable	921
Current portion of notes payable	116	923
Trade accounts payable	24,387	18,508
Accrued expenses	26,116	25,242
Contract liability	13,426	1,137
Income taxes payable	1,591	1,463
Due to IDT Corporation	381	234
Short-term revolving line of credit	2,514
Other current liabilities	2,704	3,279
TOTAL CURRENT LIABILITIES	72,156	50,786
Long-term notes payable	777
Long-term revolving line of credit		2,516
Other liabilities	2,381	900
TOTAL LIABILITIES	75,314	54,202
Commitments and contingencies (Note 15 and Note 16)
Genie Energy Ltd. stockholders' equity:
Preferred stock, $0.01 par value; authorized shares 10,000: Series 2012-A, designated shares – 8,750; at liquidation preference, consisting of 2,322 shares issued and outstanding at December 31, 2019 and 2018	19,743	19,743
Additional paid-in capital	139,615	136,629
Treasury stock, at cost, consisting of 1,030 and 250 shares of Class B common at December 31, 2019 and 2018, respectively	(7,675)	(1,624)
Accumulated other comprehensive income	2,519	2,591
Accumulated deficit	(59,671)	(53,939)
Total Genie Energy Ltd. stockholders' equity	94,805	103,671
Noncontrolling interests:
Noncontrolling interests	(13,875)	(11,009)
TOTAL EQUITY	80,930	92,662
TOTAL LIABILITIES AND EQUITY	156,244	146,864
Class A common stock
Genie Energy Ltd. stockholders' equity:
Common stock, value	16	16
Noncontrolling interests:
TOTAL EQUITY	16	16
Class B common stock
Genie Energy Ltd. stockholders' equity:
Common stock, value	258	255
Noncontrolling interests:
TOTAL EQUITY	$ 258	$ 255

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Allowance for doubtful accounts, trade accounts receivable (in dollars)	$ 2,631	$ 2,003
Preferred stock, par value (In dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000	10,000
Series 2012-A Preferred Stock
Designated shares	8,750	8,750
Preferred stock, shares issued	2,322	2,322
Preferred stock, shares outstanding	2,322	2,322
Class A common stock
Common stock, par value (In dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	35,000	35,000
Common stock, shares issued	1,574	1,574
Common stock, shares outstanding	1,574	1,574
Class B common stock
Common stock, par value (In dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	200,000	200,000
Common stock, shares issued	25,785	25,544
Common stock, shares outstanding	24,755	25,294
Treasury stock, shares	1,030	250

Consolidated Statements of Oper

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

Consolidated Statements of Op_2

Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Statements of Operations [Abstract]
Other Selling, General and Administrative Expense	$ 1,102	$ 4,523

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Statements of Comprehensive (Loss) Income [Abstract]
NET INCOME	$ 1,379	$ 21,400
Other comprehensive income:
Foreign currency translation adjustments	(519)	3
COMPREHENSIVE INCOME	860	21,403
Comprehensive loss attributable to noncontrolling interests	3,243	930
COMPREHENSIVE INCOME ATTRIBUTABLE TO GENIE ENERGY LTD.	$ 4,103	$ 22,333

Consolidated Statements of Equi

Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Class A common stock	Class B common stock	Preferred Stock	Additional Paid-In Capital	Treasury Stock	Accumulated Other Comprehensive Income	Accumulated Deficit	Noncontrolling Interests
Beginning Balance at Dec. 31, 2017	$ 67,128	$ 16	$ 236	$ 19,743	$ 130,870	$ (2,428)	$ 3,045	$ (67,469)	$ (16,885)
Beginning Balance, Shares at Dec. 31, 2017		1,574	23,601	2,322
Dividends on preferred stock	(1,481)							(1,481)
Dividends on common stock ($0.30 per share)	(7,774)							(7,774)
Restricted Class B common stock purchased from employees	(889)					(889)
Stock-based compensation	3,725		$ 4		3,721
Stock-based compensation, Shares			439
Sale of Class B common stock and warrants	6,000		$ 12		4,295	1,693
Sale of Class B common stock and warrants, Shares			1,152
Purchases of equity of subsidiary					(4,140)				4,140
Purchases of equity of subsidiary, Shares			42
Class B common stock issued for GRE deferred stock units	1,886		$ 3		1,883
Class B common stock issued for GRE deferred stock units, Shares			310
Noncontrolling interest from acquisition of Prism	2,667								2,667
Other comprehensive income							(454)		454
Net loss for the year ended	21,400							22,785	(1,385)
Ending Balance at Dec. 31, 2018	92,662	$ 16	$ 255	$ 19,743	136,629	(1,624)	2,591	(53,939)	(11,009)
Ending Balance, Shares at Dec. 31, 2018		1,574	25,544	2,322
Dividends on preferred stock	(1,481)							(1,481)
Adoption of ASU 2018-07					312			(312)
Dividends on common stock ($0.30 per share)	(8,114)							(8,114)
Purchase of Luma	410								410
Restricted Class B common stock purchased from employees	(467)					(467)
Stock-based compensation	1,103		$ 1		1,102
Stock-based compensation, Shares			36
Exercise of stock options	$ 1,407		$ 2		1,405
Exercise of stock options, Shares	205		205
Sale of Class B common stock and warrants	$ 325				325
Sale of Class B common stock and warrants, Shares
Purchases of equity of subsidiary	(191)				(158)				(33)
Class B common stock issued for GRE deferred stock units	(5,584)					(5,584)
Class B common stock issued for GRE deferred stock units, Shares
Other comprehensive income	(519)						(72)		(447)
Net loss for the year ended	1,379							4,175	(2,796)
Ending Balance at Dec. 31, 2019	$ 80,930	$ 16	$ 258	$ 19,743	$ 139,615	$ (7,675)	$ 2,519	$ (59,671)	$ (13,875)
Ending Balance, Shares at Dec. 31, 2019		1,574	25,785	2,322

Consolidated Statements of Eq_2

Consolidated Statements of Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Statement of Stockholders' Equity [Abstract]
Dividends on common stock	$ 0.30	$ 0.30

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
OPERATING ACTIVITIES
Net income (loss)	$ 1,379	$ 21,400
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,627	2,062
Deferred income taxes	3,471	(13,483)
Provision for doubtful accounts receivable	658	904
Stock-based compensation	1,102	4,523
Gain on sale disposal of property and equipment		(18)
Gain on extinguishment of liability		(164)
Impairment of goodwill	400
Impairment of assets		2,742
Equity in the net loss of equity method investees	4,830	3,430
Change in assets and liabilities, net of effect of acquisition:
Trade accounts receivable	(12,041)	7,817
Inventory	(6,739)	(4,764)
Prepaid expenses	(124)	219
Other current assets and other assets	1,137	2,726
Trade accounts payable, accrued expenses and other current liabilities	5,506	(7,846)
Contract liability	12,271	547
Due to IDT Corporation	147	20
Income taxes payable	128	(741)
Net cash provided by operating activities	15,752	19,374
INVESTING ACTIVITIES
Capital expenditures	(404)	(584)
Investments in notes receivable	(214)
Proceeds from disposal of property		62
Payment for acquisition of license in Japan		(745)
Cash transferred to Atid 613		(209)
Payment for acquisition, net of cash acquired	(2,044)	(250)
Repayment of notes receivable	124	94
Investments in equity method investees	(3,235)	(1,306)
Net cash used in investing activities	(5,773)	(2,938)
FINANCING ACTIVITIES
Dividends paid	(9,595)	(9,256)
Purchases of Class B common stock	(5,584)
Repayment of short-term debt-Lumo Energia	(2,260)
Repayment of notes payable	(45)	(10)
Proceeds from exercise of stock options	1,407
Proceeds from sales of Class B common stock and warrants		6,000
Proceeds from Other Debt	921
Repurchases of Class B common stock from employees	(467)	(889)
Net cash used in financing activities	(15,623)	(4,155)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	1	(11)
Net (decrease) increase in cash, cash equivalents and restricted cash	(5,643)	12,270
Cash, cash equivalents and restricted cash at beginning of year	44,197	31,927
Cash, cash equivalents and restricted cash at end of year	38,554	44,197
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash payments made for interest	529	400
Cash payments made for income taxes	702	1,771
SUPPLEMENTAL SCHEDULE OF NON-CASH FINANCING AND INVESTING ACTIVITIES
Class B common stock issued for GRE deferred stock units
Purchase of equity of subsidiary (Note 12)		4,140
Carrying value of assets contributed to New Atid (Note 2)		$ 1,000

Description of Business and Sum

Description of Business and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2019
Description of Business and Summary of Significant Accounting Policies [Abstract]
Description of Business and Summary of Significant Accounting Policies	Note 1 Description of Business Genie Energy Ltd. (“Genie”), a Delaware corporation, was incorporated in January 2011. Genie owns 99.3 100 100 100 97.0 GRE, owns and operates retail energy providers (“REPs”), including IDT Energy, Inc. (“IDT Energy”), Residents Energy, LLC (“Residents Energy”), Town Square Energy, LLC and Town Square Energy East, LLC (collectivity, “TSE”), Southern Federal Power, LLC ("Southern Power") and Mirabito Natural Gas (“Mirabito”). GRE's REP businesses resell electricity and natural gas primarily to residential and small business customers in the Eastern and Midwestern United States. GRE International holds the Company's 73.0 80.0 2 89.0 GES oversees LLC (" "), a retail energy advisory and brokerage company that serves commercial and industrial customers throughout the United States ("U.S.") and manages 60.0 Prism Solar Technology, Inc. ("Prism") (see Note 2 GOGAS is an oil and gas exploration company and owns an interest in a contracted drilling services operation. 86.1 controlling interests in inactive oil and gas projects. GOGAS also holds a 37.5 613 2 Seasonality and Weather The weather and the seasons, among other things, affect GRE’s revenues. Weather conditions have a significant impact on the demand for natural gas used for heating and electricity used for heating and cooling. Typically, colder winters increase demand for natural gas and electricity, and hotter summers increase demand for electricity. Milder winters and/or summers have the opposite effect. Unseasonal temperatures in other periods may also impact demand levels. Natural gas revenues typically increase in the first quarter due to increased heating demands and electricity revenues typically increase in the third quarter due to increased air conditioning use. Approximately 46.9 50.3 2019 2018 31.8 29.5 2019 2018 Basis of Consolidation The method of accounting applied to long-term investments, whether consolidated, equity or cost, involves an evaluation of the significant terms of each investment that explicitly grant or suggest evidence of control or influence over the operations of the investee and also includes the identification of any variable interests in which the Company is the primary beneficiary. The consolidated financial statements include the Company’s controlled subsidiaries and the variable interest entity in which the Company is the primary beneficiary (see Note 13 2 Acquisitions and Divestment Equity Method Investments Investments in businesses that the Company does not control, but in which the Company has the ability to exercise significant influence over operating and financial matters, are accounted for using the equity method. The Company periodically evaluates its equity method investments for impairment due to declines considered to be other than temporary. If the Company determines that a decline in fair value is other than temporary, then a charge to earnings is recorded, and a new basis in the investment is established. Use of Estimates The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”) requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Significant estimates affecting amounts reported or disclosed in the consolidated financial statements include revenues, accounts receivables, allowances for doubtful accounts receivable, net realizable value of inventories, valuation of intangible assets, depreciation and amortization periods for long-lived assets, valuation allowances recorded against deferred tax assets, the valuation of stock-based compensation, valuation of derivative instruments, valuation of debt instruments and loss contingencies. These estimates are based on historical experience and on various other assumptions that are believed to be reasonable under the current circumstances. Actual results may differ from those estimates. Revenue Recognition Revenues from the Sale of Electricity and Natural Gas Revenue from the single performance obligation to deliver a unit of electricity and/or natural gas is recognized as the customer simultaneously receives and consumes the benefit. Variable quantities in requirements contracts are considered to be options for additional goods and services because the customer has a current contractual right to choose the amount of additional distinct goods. The Company records unbilled revenues for the estimated amount customers will be billed for services rendered from the time meters were last read to the end of the respective accounting period. The unbilled revenue is estimated each month based on available per day usage data, the number of unbilled days in the period adjusted for seasonality-based cooling and heating degree-days and historical trends. Utility companies offer purchase of receivable, or POR, programs in most of the service territ The Company recognizes the incremental costs of obtaining a contract with a customer as an asset if it expects the benefit of those costs to be longer than one year. The Company determined that certain sales commissions to acquire customers meet the requirements to be capitalized. For GRE, the Company applies a practical expedient to expense costs as incurred for sales commissions to acquire customers as the period would have been one year or less. Incremental customer acquisition cost of are capitalized and amortized over eighteen months . These costs and the related amortization are recorded within sales and marketing expenses. Total capitalized customer acq uisition costs to obtain a contract was $ 0.8 million for the year ended December 31, 2019 0.6 0.1 Revenues from Sale of Solar Panels The revenue from sales of solar panels are recognized at a point in time following the transfer of control of the solar panels to the customer, which typically occurs upon shipment or delivery depending on the terms of the underlying contracts. For sales contracts that contain multiple performance obligations, such as the shipment or delivery of solar panels, we allocate the transaction price to each performance obligation identified in the contract based on relative standalone selling prices, or estimates of such prices, and recognize the related revenue as control of each individual product is transferred to the customer, in satisfaction of the corresponding performance obligations. Revenues from sales of solar panels are included under the Other Revenues in the consolidated statements of income. The following table shows the Company’s revenues disaggregated by pricing plans offered to customers: Electricity Natural Gas Other Total (in thousands) For the year ended December 31, 2019 Fixed rate $ 108,523 $ 4,001 $ — $ 112,524 Variable rate 154,568 35,925 — 190,493 Other — — 12,274 12,274 Total $ 263,091 $ 39,926 $ 12,274 $ 315,291 For the year ended December 31, 2018 Fixed rate $ 77,383 $ 2,781 $ — $ 80,164 Variable rate 150,500 43,779 — 194,279 Other — — 5,866 5,866 Total $ 227,883 $ 46,560 $ 5,866 $ 280,309 The following table shows the Company’s revenues disaggregated by non-commercial and commercial channels: Electricity Natural Gas Other Total (in thousands) For the year ended December 31, 2019 Non-Commercial Channel $ 232,511 $ 33,979 $ — $ 266,490 Commercial Channel 30,580 5,947 — 36,527 Other — — 12,274 12,274 Total $ 263,091 $ 39,926 $ 12,274 $ 315,291 For the year ended December 31, 2018 Non-Commercial Channel $ 217,019 $ 43,383 $ — $ 260,402 Commercial Channel 10,864 3,177 — 14,041 Other — — 5,866 5,866 Total $ 227,883 $ 46,560 $ 5,866 $ 280,309 Contract Liabilities December 31, 2019 2018 (in thousands) Contract liability, beginning $ 1,137 $ 205 Recognition of revenue included in the beginning of year contract liability ( 635 ( 205 Additions during the period, net of revenue recognized during the period 12,924 1,137 Contract liability, end $ 13,426 $ 1,137 The increase in contract liabilities primarily related to a significant advance payment by a customer to purchase solar panels, which the Company expects to deliver in 2020. Oil and Gas Exploration The Company accounts for its oil and gas activities under the successful efforts method of accounting. Under this method, the costs of drilling exploratory wells and exploratory-type stratigraphic test wells are capitalized, pending determination of whether the well has found proved reserves. Other exploration costs are charged to expense as incurred. Unproved properties are assessed for impairment, and if considered impaired, are charged to expense when such impairment is deemed to have occurred. Cash, Cash Equivalents and Restricted Cash The Company considers all highly liquid investments with an original maturity of three The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported in the consolidated balance sheet that equals the total of the same amounts reported in the consolidated statement of cash flows: December 31, 2019 2018 (in thousands) Cash and cash equivalents $ 31,242 $ 41,601 Restricted cash—short-term included in other current assets 6,792 1,653 Restricted cash—long-term 520 943 Total cash, cash equivalents, and restricted cash $ 38,554 $ 44,197 Restricted cash—short-term includes amounts set aside in accordance with the Amended and Restated Preferred Supplier Agreement with BP Energy Company (“BP”) (see Note 16 9 Trade Accounts Receivable, Net Trade accounts receivable, net is reported in the balance sheet as gross outstanding amounts adjusted for doubtful accounts. Inventories Inventory consists of natural gas, renewable energy credits and solar panels. Natural Gas Natural gas inventory is stored at various third parties’ underground storage facilities and is stated at lower of cost or net realizable value. Company’s natural gas inventory was valued at weighted average cost, which was based on the purchase price of the natural gas and the cost to transport, plus or minus injections or withdrawals. Renewable Energy Credits GRE must obtain a certain percentage or amount of its power supply from renewable energy sources in order to meet the requirements of renewable portfolio standards in the states in which it operates. This requirement may be met by obtaining renewable energy credits that provide evidence that electricity has been generated by a qualifying renewable facility or resource. GRE holds renewable energy credits for both sale and use, and treats the credits as a government incentive to encourage the construction of renewable power plants. Renewable energy credits are valued at the lower of cost and net realizable value. Gains and losses from the sale of renewable energy credits are recognized in cost of revenues when the credits are transferred to the buyer. Solar Panels Inventories related to solar panels are stated at the lower of cost or net realizable value. The cost is determine using the first-in, first-out basis and includes both the costs of acquisition and the costs of manufacturing. These costs include direct material, direct labor, and indirect manufacturing costs. The Company regularly reviews the cost of inventories against their estimated net realizable value and records write-downs if any inventories have costs in excess of their net realizable values. The Company also regularly evaluates the quantities and values of inventories, in light of current market conditions and trends among other factors and records write-downs for any quantities in excess of demand or for any obsolescence. This evaluation considers the use of modules in the systems business, expected demand, anticipated sales prices, strategic raw material requirements, new product development schedules, the effect new products might have on the sale of existing products, product obsolescence, product merchantability, and other factors. Market conditions are subject to change, and actual consumption of our inventory could differ from forecasted demand. Inventories consisted of the following: December 31, 2019 2018 (in thousands) Natural gas $ 1,052 $ 1,116 Renewable credits 14,940 8,654 Solar Panels: Finished goods 424 40 Raw materials 216 83 Total solar panels inventory 640 123 Totals $ 16,632 $ 9,893 Long-lived Assets Property, plant and equipment - net is stated at historical cost less accumulated depreciation and any impairment. The Company provides for depreciation using a straight-line method over estimated useful life of the assets. Any leasehold improvements are amortized over the lesser of the lease term or the useful life. The cost of major additions and improvements are capitalized, while maintenance and repair costs that do not improve or extend the lives of the respective assets are charged to operations as incurred. The estimated useful life of property plant and equipment as follows: Years Building and improvements 4 27 Machinery and equipment 2 9 Computer software and development 2 5 Computers and computer hardware 2 5 Office equipment and other 5 7 The fair value of patents and trademarks, non-compete agreements and customer relationships acquired in a business combination accounted for under the purchase method are amortized over their estimated useful lives as follows: patents and trademarks are amortized on a straight-line basis over 5 to 20 2 3 2 9 The Company tests the recoverability of its long-lived assets with finite useful lives whenever events or changes in circumstances indicate that the carrying value of the asset may not be recoverable. The Company tests the recoverability based on the projected undiscounted cash flows to be derived from such asset. If the projected undiscounted future cash flows are less than the carrying value of the asset, the Company will record an impairment loss based on excess of carrying value over fair value of the assets. The Company generally measures fair value by considering sale prices for similar assets or by discounting estimated future cash flows from such asset using an appropriate discount rate. Cash flow projections and fair value estimates require significant estimates and assumptions by management. Should the estimates and assumptions prove to be incorrect, the Company may be required to record impairments in future periods and such impairments could be material. Acquisitions Results of operations of acquired companies are included in the Company’s results of operations as of the respective acquisition dates. The purchase price of each acquisition is allocated to the net assets acquired based on estimates of their fair values at the date of the acquisition. Any purchase price in excess of these net assets is recorded as goodwill. The allocation of purchase price in certain cases may be subject to revision based on the final determination of fair values during the measurement period, which may be up to one Goodwill and Indefinite Lived Intangible Assets Goodwill is the excess of the acquisition cost of businesses over the fair value of the identifiable net assets acquired. Goodwill and other indefinite lived intangible assets are not amortized. These assets are reviewed annually (or more frequently under various conditions) for impairment using a fair value approach. In the first quarter of 2019 The change in reportable segments did not result in the reallocation of the Company's existing goodwill. Segment information from the prior year's financial statements have been reclassified in order to conform to the current year's presentation (see Note 18 ). The Company has four five The fair value of the reporting unit is estimated using discounted cash flow methodologies, as well as considering third party market value indicators. Calculating the fair value of the reporting units requires significant estimates and assumptions by management. Should the estimates and assumptions regarding the fair value of the reporting units prove to be incorrect, the Company may be required to record impairments to its goodwill in future periods and such impairments could be material. The Company performed its annual goodwill impairment test as of October 1, 2019. In reviewing goodwill for impairment, the Company has the option, for any or all of its reporting units that carry goodwill - to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not (i.e. greater than 50 T he determination of the fair value of our reporting units is based on an income approach, that utilizes discounted cash flows for each reporting 3 820 Fair Value Measurements and Disclosure Derivative Instruments and Hedging Activities The Company records its derivatives instruments at their respective fair values. The accounting for changes in the fair value (that is, gains or losses) of a derivative instrument is dependent upon whether the derivative has been designated and qualifies as part of a hedging relationship and further, on the type of hedging relationship. Due to the volatility of electricity and natural gas prices, GRE and GRE International enters into futures contracts, swaps and put and call options as hedges against unfavorable fluctuations in market prices of electricity and natural gas and to reduce exposure from price fluctuations. The Company does not designate its derivative instruments to qualify for hedge accounting, accordingly the futures contracts, swaps and put and call options are recorded at fair value as a current asset or liability and any changes in fair value are recorded in “Cost of revenues” in the consolidated statements of operations. In addition to the above, GRE and GRE International utilize forward physical delivery contracts for a portion of its purchases of electricity and natural gas, which are defined as commodity derivative contracts. Using the exemption available for qualifying contracts, GRE and GRE International apply the normal purchase and normal sale accounting treatment to its forward physical delivery contracts, thereby these contracts are not adjusted to fair value. GRE and GRE International also apply the normal purchase and normal sale accounting treatment to forward contracts for the physical delivery of electricity in nodal energy markets that result in locational marginal pricing charges or credits, since this does not constitute a net settlement, even when legal title to the electricity is conveyed to the ISO during transmission. Accordingly, GRE and GRE International recognize revenue from customer sales, and the related cost of revenues, at the contracted price, as electricity and natural gas is delivered to retail customers. Shipping and Handling Fees and Costs Amounts billed to customers for shipping and handling are included in revenues. The related minimal 0.3 0.1 December 31, 2019 2018 Foreign Currency Assets and liabilities of foreign subsidiaries denominated in foreign currencies are translated to U.S. Dollars at end-of-period rates of exchange, and their monthly results of operations are translated to U.S. Dollars at the average rates of exchange for that month. Gains or losses resulting from such foreign currency translations are recorded in “Accumulated other comprehensive income” in the accompanying consolidated balance sheets. Foreign currency transaction gains and losses are reported in “Other (expense) income, net” in the accompanying consolidated statements of operations. Advertising Expense Cost of advertising for customer acquisitions is charged to selling, general and administrative expense in the period in which it is incurred. Most of the advertisements are in print, over the radio, or direct mail. In the years ended December 31, 2019 2018 4.1 2.4 Income Taxes The Company recognizes deferred tax assets and liabilities for the future tax consequences attributable to temporary differences between the financial statements carrying amounts of existing assets and liabilities and their respective tax bases. A valuation allowance is provided when it is more likely than not that some portion or all of a deferred tax asset will not be realized. The ultimate realization of deferred tax assets depends on the generation of future taxable income during the period in which related temporary differences become deductible. The Company considers the scheduled reversal of deferred tax liabilities, projected future taxable income and tax planning strategies in its assessment of a valuation allowance. Deferred tax assets and liabilities are measured using the enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date of such change. The Company uses a two 50 one The Company classifies interest and penalties on income taxes as a component of income tax expense. Contingencies The Company accrues for loss contingencies when both (a) information available prior to issuance of the financial statements indicates that it is probable that a liability had been incurred at the date of the financial statements and (b) the amount of loss can reasonably be estimated. When the Company accrues for loss contingencies and the reasonable estimate of the loss is within a range, the Company records its best estimate within the range. When no amount within the range is a better estimate than any other amount, the Company accrues the minimum amount in the range. The Company discloses an estimated possible loss or a range of loss when it is at least reasonably possible that a loss may have been incurred. Earnings Per Share Basic earnings per share is computed by dividing net income or loss attributable to all classes of common stockholders of the Company by the weighted average number of shares of all classes of common stock outstanding during the applicable period. Diluted earnings per share is determined in the same manner as basic earnings per share, except that the number of shares is increased to include restricted stock still subject to risk of forfeiture and to assume exercise of potentially dilutive stock options and warrants using the treasury stock method, unless the effect of such increase is anti-dilutive. The weighted-average number of shares used in the calculation of basic and diluted earnings per share attributable to the Company’s common stockholders consists of the following: Year ended December 31, 2019 2018 (in thousands) Basic weighted-average number of shares $ 26,607 $ 25,154 Effect of dilutive securities Stock options and warrants 718 130 Non-vested restricted Class B common stock 139 411 Diluted weighted-average number of shares $ 27,464 $ 25,695 The following shares were excluded from the diluted earnings per share computations because they were anti-dilutive: Year ended December 31, (in thousands) 2019 2018 Stock options 126 341 Stock-Based Compensation The Company recognizes compensation expense for grants of stock-based awards to its employees based on the estimated fair value on the grant date. Compensation cost for awards is recognized using the straight-line method over the requisite service period, which approximates the vesting period. Stock-based compensation is included in selling, general and administrative expense. Forfeitures are recognized as incurred. Vulnerability Due to Certain Concentrations Financial instruments that potentially subject the Company to concentration of credit risk consist principally of cash, cash equivalents, restricted cash, certificates of deposit and trade accounts receivable. The Company holds cash, cash equivalents and restricted cash at several major financial institutions, which may exceed FDIC insured limits. Historically, the Company has not experienced any losses due to such concentration of credit risk. The Company’s temporary cash investments policy is to limit the dollar amount of investments with any one GRE’s REPs reduce their customer credit risk by participating in purchase of receivable, or POR, programs for a majority of their receivables. In addition to providing billing and collection services, certain utility companies purchase those REPs’ receivables and assume all credit risk without recourse to those REPs for those purchased receivables. GRE’s REPs’ primary credit risk with respect to those purchased receivables is therefore nonpayment by the utility companies. Certain of the utility companies represent significant portions of the Company’s consolidated revenues and consolidated gross trade accounts receivable balance during certain period, and such concentrations increase the Company’s risk associated with nonpayment by those utility companies. The following table summarizes the percentage of consolidated revenues from customers by utility company that equal or exceed 10 10 Year ended December 31, 2019 2018 Con Edison na % 11 % na – less than 10 There was no single utility company accounted for 10 December 31, 2019 2018 Allowance for Doubtful Accounts The allowance for doubtful accounts reflects the Company’s best estimate of probable losses inherent in the accounts receivable balance. The allowance is determined based on known troubled accounts, historical experience and other currently available evidence. Doubtful accounts are written-off upon final determination that the trade accounts will not be collected. The change in the allowance for doubtful accounts was as follows: (in thousands) Balance at beginning of period Additions charged (reversals credited) to expense Additions (deductions) Balance at end of period Year ended December 31, 2019 Reserves deducted from accounts receivable: Allowance for doubtful accounts $ 2,003 $ 658 $ ( 30 $ 2,631 Year ended December 31, 2018 Reserves deducted from accounts receivable: Allowance for doubtful accounts $ 1,099 $ 904 $ — $ 2,003 Reclassifications Certain amounts from the prior year's financial statements have been reclassified in order to conform to the current year's presentation. Fair Value Measurements Fair value of financial and non-financial assets and liabilities is defined as an exit price, which is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The three Level 1 — quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 — quoted prices for similar assets and liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument. Level 3 — unobservable inputs based on the Company’s assumptions used to measure assets and liabilities at fair value. A financial asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. The assessment of the significance of a particular input to the fair value measurement requires judgment, and may affect the valuation of the assets and liabilities being measured and their placement within the fair value hierarchy. Accounting Standards Updates In May 2014, the Financial Accounting Standards Board (“FASB”) issued ASC 606 1 2 3 4 5 606 In January 2016, the FASB issued ASU No. 2016 01 Recognition and Measurement of Financial Assets and Financial Liabilities 1 2 3 4 In February 2016, the FASB issued ASU No. 2016 02 Leases (Topic 842 12 2016 - 02 , in July 2018, the FASB issued Accounting Standards Update No. 2018 - 10 , Codification Improvements to Topic 842 , Leases ("ASU 2018 - 10 ") and Accounting Standards Update No. 2018 - 11 , Leases (Topic 842 ): Targeted Improvements ("ASU 2018 - 11 "). The amendments in ASU 2018 - 10 clarify, correct or remove inconsistencies in the guidance provided under ASU 2016 - 02 related to sixteen specific issues identified. The amendments in ASU 2018 - 11 provide entities with an additional (and optional) transition method to adopt the new leases standard. Under the new transition method, an entity initially applies the new leases standard at the adoption date and recognizes a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Consequently, an entity's reporting for the comparative periods presented in the financial statements in the period of adoption will continue to be in accordance with ASC 840 , Leases ("ASC 840 "). An entity that elects this additional (and optional) transition method must provide the required disclosures under ASC 840 for all periods that continue to be in accordance with ASC 840 . ASU 2018 - 11 also provides lessors with a practical expedient, by class of underlying asset, to not separate nonlease components from the associated lease component and, instead, to account for those components as a single component if certain criteria are met. The effective date and transition requirements for these two standards are the same as the effective date and transition requirements of ASU 2016 - 02 . The standards were effective for the Company beginning after December 15, 2018. The Company adopted Topic 842 as of January 1, 2019 using a modified retrospective transition method. The financial results reported in periods prior to January 1, 2019 are not adjusted. The Company also elected the package of practical expedients, which among other things, does not require reassessment of lease classification. As most of the Company's leases do not provide an implicit rate, we used our collateralized incremental borrowing rate based on the information available at the lease implementation date in determining the present value of the lease payments. At January 1, 2019, the Company recognized $ 2.4 million of ROU assets related to the Company's operating leases. The ROU was included in other assets in the consolidated balance sheet. The Company also recognized $ 0.4 million and $ 2.0 million of current and noncurrent lease liabilities, included in other current liabilities and other liabilities in the consolidated balance sheets. In June 2016, the FASB issued ASU No. 2016 13 Measurement of Credit Losses on Financial Instruments The Company is currently evaluating the requirements of this guidance and has not yet determined the impact of its adoption on the Company's consolidated financial position, results of operations and cash flows. In November 2016, the FASB issued ASU No. 2016 18 Restricted Cash The Company adopted the amendments in this ASU on January 1, 2018. Certain amounts from the prior year's statements of cash flows have been reclassified in order to conform to the 2018 The adoption did not have a material impact on the Company's consolidated balance sheets and results of operations. In January 2017, the FASB issued ASU No. 2017 01 Business Combinations three 1 2 two 2017 01 The Company accounted for the Smile Energy G.K. ("Smile Energy") acquisition as an asset acquisition (see Note 2 Acquisitions and Divestitures The adoption did not have a material impact on the Company's consolidated balance sheets, results of operations and cash flows, other than the impact discussed above. In June 2018, the FASB issued ASU No. 2018 07 Improvements to Nonemployee Share-Based Payment Accounting 718 718 718 718 1 2 606 0.3 In August 2018, the FASB issued ASU No. 2018 13 Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement 3 3 In November 2018, the FASB issued ASU No. 2018 17 Targeted Improvements to Related Party Guidance for Variable Interest Entities In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes

Acquisitions and Divestiture

Acquisitions and Divestiture	12 Months Ended
	Dec. 31, 2019
Acquisitions [Abstract]
Acquisitions and Divestiture	Note 2 Acquisition of Lumo Energia, Oyj On January 2, 2019 (the “Lumo Closing Date”), the Company completed the purchase of an 80.0 The Company paid the sellers a total of € 1.6 1.9 1.3 1.5 The Lumo Restricted Shares are accounted for as a share-based compensation and is amortized to the consolidated statement of income over the vesting period of two Of the remaining 20.0 12.5 three The Company has a conditional continuing call option to purchase a portion or the entire noncontrolling interest from the sellers during the period beginning at the third anniversary of the Lumo Closing Date and ending three The sellers, as a group, have a one one two The Company recorded revenue for Lumo of approximately $ 15.2 December 31, 2019 The impact of the acquisition’s purchase price allocations on the Company’s consolidated balance sheet and the acquisition date fair value of the total consideration transferred were as follows: (in thousands) Cash $ 1,539 Trade accounts receivable 2,520 Other current assets 411 Intangible assets: Trademark ( 5 294 Non-compete agreements ( 3 34 Customer relationship ( 2 1,924 Goodwill 1,744 Other assets 95 Accounts payable and other current liabilities ( 2,403 Short-term debts ( 2,260 Other liabilities ( 97 Noncontrolling interest ( 410 Net assets $ 3,391 (in thousands) Supplemental information Cash paid to Sellers $ 1,869 Cash contributed to Lumo 1,522 Total consideration $ 3,391 Goodwill was allocated to the GRE During the fourth quarter of 2019 0.5 In November 2019, the Company acquired additional 9.0 89.0 0.2 Acquisition of Prism Prism is a solar solutions company that is engaged in U.S.-based panel manufacturing, installation design and project management. Prism’s solar panels feature high efficiency N-type silicon solar cells designed into bifacial solar modules which result in systems with a reduction in the average cost per kilowatt hour, while their glass-on-glass design increases the durability and lifetime value of Prism’s panels. Between August and October 2018, the Company extended an aggregate of $ 1.3 12.0 On October 25, 2018, the Company acquired a 60.0 4.0 (i) the conversion of $ 1.4 1.1 1.5 60 The Company recorded revenue for Prism of approximately $ 10.1 illion and $ 3.3 2018 respectively. The net income or loss attributable to this acquisition cannot be identified on a stand-alone basis because it is in the process of being integrated into the Company's operations. The impact of the acquisition’s purchase price allocations on the Company’s consolidated balance sheet and the acquisition date fair value of the total consideration transferred were as follows: (in thousands) Cash $ 931 Trade accounts receivable 11 Inventories 1,142 Other current assets 260 Property plant and equipment ( 19 3,564 Intangible assets: Trademark ( 10 320 Patent ( 10 370 Customer contract ( 3 1,600 Goodwill 804 Accounts payable accrued expenses ( 1,723 ) Notes payable — ( 63 ) Other current liabilities ( 1,164 ) Notes payable — net of current portion ( 885 ) Noncontrolling interest ( 2,667 ) Net assets $ 2,500 (in thousands) Supplemental information Cash contributed to Prism $ 899 Notes receivable from Prism, including accrued interest, converted to Prism's equity 1,351 Cash payment to previous equity holders of Prism 250 2,500 Notes payable issued to Prism 1,500 Total considerations $ 4,000 Goodwill was allocated to the GES segment. Goodwill is the excess of the consideration transferred over the net assets recognized and represents the expected revenue and cost synergies of the combined company and assembled workforce. Goodwill recognized as a result of the acquisition is not deductible for income tax purposes. During the first quarter of 2019 0.3 Prism's noncurrent notes payable consisted of the following: December 31, 2018 October 25, 2018 (in thousands) 5.95 7,184 $ 893 $ 918 20.00 30 30 923 948 Less: Current maturities 923 63 Noncurrent portion $ — $ 885 On April 12, 2019, Prism restructured its ownership. The Company how holds a 60.0 100 In December 11, 2019, the Company refinanced the 5.95 from Catskill Hudson Bank 0.8 ten The 4.75 . The notes payable are secured by Prism's commercial property in Highland, New York. At December 31, 2019, $ 0.8 million was outstanding under notes payable with $ 0.1 Prism's noncurrent notes payable consisted of the following as of December 31, 2019 4.75 $ 863 Less: Current portion 86 Total $ 777 The annual maturities of the Term Loan, as of December 31, 2019 2020 $ 86 2021 86 2022 86 2023 86 2024 86 Thereafter 433 Total $ 863 Divestiture of Majority Interest in Atid Drilling Ltd. Following the Company’s decision to suspend oil and gas exploration drilling activities at its Afek subsidiaries, in June 2018, the Company initiated a plan to sell primarily all of Atid Drilling Ltd’s 2.7 1.0 37.5 37.5 25.0 Genie Israel also entered into a Shareholder Agreement with Atid 613 613 0.4 nil Genie Israel accounts for its investments in the newly formed contracted drilling services company in Israel using the equity method of accounting. Pro Forma Results (unaudited) The following unaudited pro forma financial information summarizes the results of operations for the years ended December 31, 2019 and 2018 2018 2017 Year ended December 31, 2019 2018 (in thousands) Total revenues $ 293,694 $ 281,847 Net income 217,746 21,524 Net income attributable to Genie Energy Ltd. common stockholders 20,634 22,511 Earnings per share attributable to Genie energy Ltd. common stockholders Basic 0.81 0.89 Diluted 0.80 0.88

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2019
Fair Value Measurements [Abstract]
Fair Value Measurements	Note 3 The following table presents the balance of assets and liabilities measured at fair value on a recurring basis: (in thousands) Level 1 ( 1 Level 2 ( 2 Level 3 ( 3 Total December 31, 2019 Assets: Derivative contracts $ 5 $ 322 $ — $ 327 Liabilities: Derivative contracts $ 1,569 $ 410 $ — $ 1,979 December 31, 2018 Assets: Derivative contracts $ 1,107 $ 467 $ — $ 1,574 Liabilities: Derivative contracts $ 2,100 $ 248 $ — $ 2,348 ( 1 quoted prices in active markets for identical assets or liabilities ( 2 observable inputs other than quoted prices in active markets for identical assets and liabilities ( 3 no observable pricing inputs in the market The Company’s derivative contracts consist of natural gas and electricity put and call options and swaps. The underlying asset in the Company’s put and call options is a forward contract. The Company’s swaps are agreements whereby a floating (or market or spot) price is exchanged for a fixed price over a specified period. Fair Value of Other Financial Instruments The estimated fair value of the Company’s other financial instruments was determined using available market information or other appropriate valuation methodologies. However, considerable judgment is required in interpreting this data to develop estimates of fair value. Consequently, the estimates are not necessarily indicative of the amounts that could be realized or would be paid in a current market exchange. Restricted cash — short-term and long-term, trade receivables, due to IDT Corporation and accounts payable. At December 31, 2019 2018 1 other current assets, due to IDT Corporation and other current liabilities were classified as Level 2 Other assets, revolving line of credit and notes payable. At December 31, 2019 and 2018 one approximated fair value. The fair values were estimated based on the Company’s assumptions, and were classified as Level 3 The following table presents the items measured at fair value on a non-recurring basis: (in thousands) Level 1 ( 1 Level 2 ( 2 Level 3 ( 3 Total December 31, 2019 Impairment of goodwill $ — $ — $ 400 $ 400 December 31, 2018 Impairment of assets (Atid) $ — $ — $ 2,742 $ 2,742 The Company did not have any transfers of assets or liabilities between Level 1 , Level 2 3 2018 . The primary non-recurring fair value estimates typically involve business acquisitions (Note 2 2 3 8 3 2 3

Derivative Instruments

Derivative Instruments	12 Months Ended
	Dec. 31, 2019
Derivative Instruments [Abstract]
Derivative Instruments	Note 4 The primary risk managed by the Company using derivative instruments is commodity price risk, which is accounted for in accordance with Accounting Standards Codification 815 December 31, 2019 2018 GRE The summarized volume of GRE’s outstanding contracts and options at December 31, 2019 Commodity Settlement Dates Electricity (In MWH) Natural Gas (In Dth) First quarter 2020 186,005 359,710 Second quarter 2020 95,000 138,920 Third quarter 2020 85,000 105,702 Fourth quarter 2020 44,680 83,051 First quarter 2021 — 79,500 Second quarter 2021 — 60,400 Third quarter 2021 — 45,700 Fourth quarter 2021 — 38,450 First quarter 2022 — 28,600 Second quarter 2022 — 16,450 Third quarter 2022 — 2,850 Fourth quarter 2022 — 1,450 The fair value of outstanding derivative instruments recorded in the accompanying consolidated balance sheets were as follows: December 31, 2019 2018 Asset Derivatives Balance Sheet Location (in thousands) Derivatives not designated or not qualifying as hedging instruments: Energy contracts and options ( 1 Other current assets $ 324 $ 1,116 Energy contracts and options Other assets 3 458 Total derivatives not designated or not qualifying as a hedging instruments — $ 327 $ 1,574 Liability Derivatives Derivatives not designated or not qualifying as hedging instruments: Energy contracts and options ( 1 Other current liabilities $ 1,909 $ 2,028 Energy Contracts and options Other liabilities 70 320 Total derivatives not designated or not qualifying as a hedging instruments — $ 1,979 $ 2,348 ( 1 The Company classifies derivative assets and liabilities as current based on the cash flows expected to be incurred within the following 12 . The effects of derivative instruments on the consolidated statements of operations were as follows: Amount of Loss Recognized on Derivatives Year ended December 31, (in thousands) 2019 2018 Derivatives not designated or not qualifying as hedging instruments Location of Loss Recognized on Derivatives Energy contracts and options Cost of revenues $ 24,810 $ 2,013

Leases

Leases	12 Months Ended
	Dec. 31, 2019
Leases [Abstract]
Leases	Note 5 The Company entered into operating lease agreements primarily for offices in domestic and foreign locations where it has operations with lease periods expiring between 2020 2030 The Company determine if a contract is a lease at inception. Operating lease assets and liabilities are included on our consolidated balance sheet beginning January 1, 2019. Right-of-Use ("ROU") assets were included under other assets in the consolidated balance sheet. The current portion of the operating lease liabilities were included in other current liabilities and the noncurrent portion is included in other liabilities in the consolidated balance sheet. ROU assets and operating lease liabilities are recognized at the present value of the future lease payments at the lease commencement date. The interest rate used to determine the present value of the future lease payments is the incremental borrowing rate, because the interest rate implicit in most of our leases is not readily determinable. The incremental borrowing rate is estimated to approximate the interest rate on a fully collateralized and fully amortizing borrowing with maturity date the same length of the lease that is based on information available at the lease commencement date. ROU assets also include any prepaid lease payments and lease incentives. The lease terms include periods under options to extend or terminate the lease when it is reasonably certain that we will exercise that option. The Company use the base, non-cancelable, lease term when determining the lease assets and liabilities. Operating lease expense is recognized on a straight-line basis over the lease term. (in thousands) December 31, 2019 ROU assets $ 2,357 Current portion of operating lease liabilities 479 Noncurrent portion of operating lease liabilities 1,917 Total $ 2,396 At December 31, 2019, the weighted average remaining lease term is 7.3 6.5 Supplemental cash flow information for ROU assets and operating lease liabilities for the year ended December 31, 2019 is as follows: (in thousands) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating activities $ 883 ROU assets obtained in the exchange for lease liabilities Operating leases $ 301 Future lease payments under operating leases as of December 31, 2019 were as follows: (in thousands) 2020 632 2021 551 2022 242 2023 221 2024 225 Thereafter 1,305 Total future lease payments 3,176 Less imputed interest 780 Total operating lease liabilities $ 2,396 Rental expenses under operating leases were $ 0.9 0.7 2018 A portion of the Prism facility is being rented out to other tenants. The rent income generated from the lease contracts are not significant to the consolidated financial statements. As of December 31, 2018, prior to adoption of ASU 2016 02 one Future lease payments under operating leas es (in thousands) 2019 527 2020 428 2021 377 2022 217 2023 221 Thereafter 1,530 Total operating lease liabilities $ 3,300

Investments in Equity Method In

Investments in Equity Method Investees	12 Months Ended
	Dec. 31, 2019
Investment in Equity Method Investees [Abstract]
Investment in Equity Method Investees	Note 6 stm ents Investment in Shoreditch Energy Limited On July 17, 2017, the Company’s subsidiary, Genie Energy UK Ltd. (“GEUK”), entered into a definitive agreement with Energy Global Investments Pty Ltd (“EGC”) to launch Shoreditch Energy Limited (“Shoreditch”), a joint venture to offer electricity and natural gas service to residential and small business customers in the United Kingdom, using the trade name Orbit Energy (the"JV Agreement"). In 2019 2018 2.7 1.3 8.0 73.0 EGC has several significant participation rights in the management of Shoreditch that limits GEUK’s ability to direct the activities that most significantly impact Shoreditch’s economic performance. GEUK, therefore, accounts for its ownership interest in Shoreditch using the equity method since GEUK has the ability to exercise significant influence over its operating and financial matters, although it does not control Shoreditch. In 2018 0.2 2.0 0.2 The following table summarizes the change in the balance of GEUK’s investment in Shoreditch (in thousands): For the year ended December 31, 2019 2018 (in thousands) Balance, beginning of period $ 1,679 $ 3,450 Capital contributions 2,735 1,306 Foreign currency translation adjustment 26 ( 87 Equity in the net loss ( 4,440 ( 2,990 ) Balance, end of period $ — $ 1,679 At December 31, 2019, the Company’s maximum exposure to loss as a result of its involvement with Shoreditch was its nil Inv estment in New Atid 613 As discussed in Note 2 , Acquisitions and Divestitures, i n September 2018, the Company divested a majority interest in Atid in exchange for 37.5 613 The following table summarizes the change in the balance of investment in Atid 613 for the years ended December 31, 2019 and 2018 December 31 2019 2018 (in thousands) Balance, beginning of period $ 529 $ — Capital contributions — 1,000 Equity in net loss ( 291 ) ( 440 Foreign currency translation adjustments 36 ( 31 Balance, end of period $ 274 $ 529 On August 12, 2019, the Company, together with the other shareholders of Atid 613 613 5.1 1.5 1.9 0.5 0.8 0.2 613 5.5 At December 31, 2019 0.2 613 Atid 613 December 31, 2019 2018 613 0.6 million and $ 0.7 million, respectively. At December 31, 2019 and 2018 613 0.1 million and immaterial The Company also issued letters of credit in favor of 613 0.8 million. At December 31, 2019

Property and Equipment

Property and Equipment	12 Months Ended
	Dec. 31, 2019
Property and Equipment [Abstract]
Property and Equipment	Note 7 December 31, 2019 2018 (in thousands) Land $ 230 $ 230 Building and improvements 2,349 2,291 Manufacturing equipment 1,434 1,403 Computer software 2,549 2,229 Computers and computer hardware 244 237 Office equipment and other 146 270 6,952 6,660 Less: accumulated depreciation ( 3,345 ) ( 2,359 ) Property and equipment, net $ 3,607 $ 4,301 Depreciation expense of property and equipment 1.1 0.8 December 31, 2019 2018

Goodwill and Other Intangibles

Goodwill and Other Intangibles	12 Months Ended
	Dec. 31, 2019
Goodwill and Other Intangibles [Abstract]
Goodwill and Other Intangibles	Note 8 The table below reconciles the change in the carrying amount of goodwill for the period from January 1, 2018 to December 31, 2019 GRE GRE Intern ational GES Total (in thousands) Balance at January 1, 2018 $ 9,998 $ — $ — $ 9,998 Acquisition of Prism (see Note 2 — — 1,084 1,084 Balance at December 31, 2018 9,998 — 1,084 11,082 Acquisition of Lumo (see Note 2 — 1,744 — 1,744 Prism acquisition purchase price allocation adjustment (see Note 2 — — ( 280 ( 280 Impairment of Prism goodwill — — ( 400 ( 400 Cumulative translation adjustment — ( 11 — ( 11 Balance at December 31, 2019 $ 9,998 $ 1,733 $ 404 $ 12,135 The Company performed its annual goodwill impairment test as of October 1, 2019. The Company elected to perform a qualitative analysis for its GRE and GRE International reporting units. The Company determined, after performing a qualitative analysis, that there was no evidence that it is more likely than not that the fair value of any identified reporting unit was less that the carrying amounts, therefore, it was not necessary to perform a quantitative impairment test. The Company performed quantitative impairment analysis for Prism reporting unit as a result of lower than expected results of operations in 2019. As a result of this test, the Company concluded that the carrying value Prism reporting unit exceeded its fair value of reporting unit including the allocated goodwill. Therefore, the Company recognized a goodwill impairment charge of $ 0.4 The table below presents information on the Company’s other intangible assets: Weighted Average Amortization Period Gross Carrying Amount Accumulated Amortization Net Balance December 31, 2019 (in thousands) Patents and trademarks 17.1 $ 3,842 $ ( 560 $ 3,282 Non-compete agreement 1.6 148 ( 126 22 Customer relationships 3.9 6,706 ( 3,941 2,765 Licenses 10.0 895 ( 127 768 TOTAL $ 11,591 $ ( 4,754 $ 6,837 December 31, 2018 Trademark 17.3 $ 3,470 $ ( 288 ) $ 3,182 Non-compete agreement 2.0 115 ( 112 ) 3 Customer relationships 4.0 4,612 ( 2,334 ) 2,278 Licenses 10.0 895 ( 37 858 TOTAL $ 9,092 $ ( 2,771 ) $ 6,321 Amortization expense of intangible assets (including minimal amount reported in cost of revenues) was $ 2.5 1.3 December 31, 2019 2018 2.0 1.0 0.5 0.5 0.4 2.4 2020 2021 2022, 2023 2024 2025

Debt

Debt	12 Months Ended
	Dec. 31, 2019
Debt [Abstract]
Debt	Note 9 Loan with Tokyo Star Bank On November 28, 2019, Genie Japan entered into a Loan Agreement with Tokyo Star Bank for a ¥ 100.0 0.9 ¥ 100.0 million (equivalent to $ 0.9 outstanding principal amount incurs interest at Tokyo Star Bank's short-term prime rate plus 0.25 May 13, 2020 December 31, 2019 0.9 3.0 % Revolving Line of Credit with Vantage Commodities On April 4, 2017, GRE, IDT Energy, and other GRE subsidiaries entered into a Credit Agreement with Vantage Commodities Financial Services II, LLC (“Vantage”) for a $ 20 outstanding principal amount incurs interest at LIBOR 4.5 April 3, 2020 The borrowers are required to comply with various affirmative and negative covenants, including maintaining a target tangible net worth during the term of the credit agreement. To date, we are in compliance with such covenants. December 31, 2019 2018 2.5 2018 6.41 7.24 Credit Agreement with JPMorgan Chase Bank On December 5, 2019, the Company entered into the first amendment of the Credit Agreement with extend the maturity date to December 31, 2020. The Company continues to have the aggregate principal amount of $ 5.0 The Company pays a commitment fee of 0.1 1.0 500 1.0 5.1 1.8 none 5.2

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2019
Income Taxes [Abstract]
Income Taxes	Note 10 The components of income before income taxes are as follows: Year ended December 31, 2019 2018 (in thousands) Domestic $ 23,894 $ 15,246 Foreign ( 17,915 ( 6,222 ) INCOME BEFORE INCOME TAXES $ 5,979 $ 9,024 Significant components of the Company’s deferred income tax assets consist of the following: December 31, 2019 2018 (in thousands) Deferred income tax assets: Bad debt reserve $ 701 $ 543 Accrued expenses 1,093 2,629 State taxes 80 91 Charitable contributions 173 189 Net operating loss 49,055 46,632 ROU assets 521 — Lease liability ( 474 — Stock options and restricted stock 520 519 Depreciation 5,241 6,209 Total deferred income tax assets 56,910 56,812 Valuation allowance ( 44,756 ( 41,187 ) DEFERRED INCOME TAX ASSETS, NET $ 12,154 $ 15,625 The Company recognizes a valuation allowance against deferred tax assets to the extent that it believes that the deferred tax assets are not more likely than not to be realized. In making such a determination, the Company considers all available positive and negative evidence, including future reversals of existing taxable temporary differences, projected future taxable income, tax-planning strategies, and results of recent operations. If the Company determines that it would be able to realize its deferred tax assets in the future in excess of their net recorded amount, the Company would make an adjustment to the deferred tax asset valuation allowance, which would reduce the provision for income taxes. The Company released a portion of the valuation allowance of $ 15.0 2018 The (provision for) benefit from income taxes consists of the following: Year ended December 31, 2019 2018 (in thousands) Current: Federal $ — $ — State and local ( 1,129 ( 1,107 ) Foreign — — ( 1,129 ( 1,107 ) Deferred: Federal ( 2,808 13,609 State and local ( 663 ( 126 ) Foreign — — ( 3,471 ) 13,483 (PROVISION FOR) BENEFIT FROM INCOME TAXES $ ( 4,600 $ 12,376 The differences between (provision for) Year ended December 31, 2019 2018 (in thousands) U.S. federal income tax benefit at statutory rate $ ( 1,256 $ ( 1,895 Valuation allowance ( 3,569 15,113 Nondeductible expense 175 ( 12 Foreign tax rate differential 13 1,493 Other 567 ( 1,174 State and local income tax, net of federal benefit ( 530 ( 1,149 ) (PROVISION FOR) BENEFIT FROM INCOME TAXES $ ( 4,600 $ 12,376 At December 31, 2019 21.1 131.8 382 2034 2030 2038 At December 31, 2019 121.5 104.6 The Company includes certain entities that are not included in the Company’s consolidated tax return. The entities have separate U.S. federal and state net operating loss carry-forwards of $ 35.5 2025 30.8 382 2.5 The change in the valuation allowance for deferred income taxes was as follows: Balance at beginning of period Additions charged to costs and expenses Deductions Balance at end of period (in thousands) Year ended December 31, 2019 Reserves for valuation allowances deducted from deferred income taxes, net $ 41,187 $ 3,569 $ — $ 44,756 Year ended December 31, 2018 Reserves for valuation allowances deducted from deferred income taxes, net $ 48,337 $ 7,963 $ ( 15,113 ) $ 41,187 The table below summarizes the change in the balance of unrecognized income tax benefits: Year ended December 31, 2019 2018 (in thousands) Balance at beginning of period $ 433 $ 558 Additions based on tax positions related to the current period 84 98 Lapses of statutes of limitations ( 134 ( 223 ) Balance at end of period $ 383 $ 433 All of the unrecognized income tax benefits at December 31, 2019 2018 twelve In the years ended December 31, 2019 2018 minimal December 31, 2019 2018 minimal The Company currently remains subject to examinations of its tax returns as follows: U.S. federal tax returns for 2016 2019 2015 2019 2015 2019

Equity

Equity	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Equity	Note 11 — Equity Class A Common Stock and Class B Common Stock The rights of holders of Class A common stock and Class B common stock are identical except for certain voting and conversion rights and restrictions on transferability. The holders of Class A common stock and Class B common stock receive identical dividends per share when and if declared by the Company’s Board of Directors. In addition, the holders of Class A common stock and Class B common stock have identical and equal priority rights per share in liquidation. The Class A common stock and Class B common stock do not have any other contractual participation rights. The holders of Class A common stock are entitled to three one 2012 one Series 2012 Each share of Preferred Stock has a liquidation preference of $ 8.50 0.6375 seven and one 7.5 32 8,750,000 The Preferred Stock is redeemable, in whole or in part, at the option of the Company 100 The Base Dividend is payable (if declared by the Company’s Board of Directors, and accrued, if not declared) quarterly on each February 15, May 15, August 15 and November 15, and to the extent that there is any Additional Dividend payable with respect to a fiscal year, it will be paid to holders of Preferred Stock with the May dividend. With respect to the payment of dividends and amounts upon liquidation, dissolution or winding up, the Preferred Stock is equal in rank to all other equity securities the Company issues, the terms of which specifically provide that such equity securities rank on a parity with the Preferred Stock with respect to dividend rights or rights upon the Company’s liquidation, dissolution or winding up; senior to the Company’s common stock; and junior to all of the Company’s existing and future indebtedness. Each share of Preferred Stock has the same voting rights as a share of Class B common stock, except on certain matters that only impact the Company’s common stock, as well as additional voting rights on specific matters or upon the occurrence of certain events. Dividend Payments In the year ended December 31, 2019 0.30 8.1 December 31, 2018 0.30 7.4 0.075 2019 March 24, 2020 April 3, 2020 I n each of the years ended December 31, 2019 2018 0.6376 1.5 0.1594 2019 February 6, 2020 The Delaware Corporation Law allows companies to declare dividends out of its “Surplus,” which is calculated by deducting the par value of the company’s stock from the difference between total assets less total liabilities. The Company elected to record dividends declared against accumulated deficit. Stock Repurchases On March 11, 2013, the Board of Directors of the Company approved a stock repurchase program for the repurchase of up to an aggregate of 7.0 731,869 5.6 December 31, 2018 December 31, 2019 6.2 In the year ended December 31, 2019 0.5 48,197 December 31, 2018 0.9 149,000 As of December 31, 2019 2018 1.0 0.2 treasury stock, respectively, with respective costs of $ 7.7 1.6 7.46 6.51 Repurchase Right on Sale of Shares to Howard S. Jonas On July 30, 2014, the Company entered into a Second Amended and Restated Employment Agreement and a Restricted Stock Sale Agreement with Howard S. Jonas, the Company’s Chairman of the Board and former Chief Executive Officer. Pursuant to these agreements, among other things, in 2014 3.6 6.82 0.6 6.82 December 31, 2019 Sales of Shares and Warrants On June 8, 2018, the Company sold to Howard S. Jonas, the Chairman of the Company’s Board of Directors and a principal owner, ( 1 1,152,074 4.34 5.0 2 1,048,218 4.77 5.0 June 2023 the Company sold to a third-party investor ( 1 230,415 4.34 1.0 2 209,644 4.77 1.0 2019 1,257,862 4.77 June 2023 Purchases of Equity of Subsidiary In June 2018, an entity affiliated with Lord (Jacob) Rothschild exercised its option to exchange its 5 41,667 0.2 92 97

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2019
Stock-Based Compensation [Abstract]
Stock-Based Compensation	Note 12 Stock-Based Compensation Plan The Company’s 2011 On May 7, 2018 and May 8, 2019, the Company’s stockholders approved amendments to the Plan to reserve an additional 974,199 372,000 December 31, 2019 2.7 503,000 Restricted Stock The fair value of restricted shares of the Company’s Class B common three A summary of the status of the Company’s grants of restricted shares of Class B common stock is presented below: Number of Non-vested Shares Weighted- Average Grant Date Fair Value (in thousands) Non-vested shares at December 31, 2018 367 $ 5.46 Granted 199 6.50 Vested ( 158 5.61 Forfeited ( 163 6.38 NON-VESTED SHARES AT DECEMBER 31, 2019 245 $ 5.59 At December 31, 2019 1.0 1.4 December 31, 2019 2018 0.4 0.4 1.0 3.4 December 31, 2019 2018 Stock Options Option awards are generally granted with an exercise price equal to the market price of the Company’s stock on the date of grant. Option awards generally vest on a graded basis over three ten On February 11, 2019, the Company granted options to Howard S. Jonas to purchase 126,176 8.05 0.3 three The fair value of stock options granted in the years ended December 31, 2019 and 2018 December 31, 2019 2018 Average risk-free interest rate 2.5 % 2.6 % Expected dividend yield 3.7 6.9 Expected volatility 52.7 55.8 Expected term 4 5.0 yea Weighted-average grant date fair value of options granted $ 2.6 $ 1.3 A summary of stock option activity for the Company is as follows: Number of Options (in thousands) Weighted- Average Exercise Price Weighted- Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (in thousands) Outstanding at December 31, 2018 635 $ 5.83 3.5 $ 434 Granted 126 8.05 Exercised ( 205 6.85 Cancelled/Forfeited — — OUTSTANDING AT DECEMBER 31, 2019 556 $ 5.96 3.1 $ 1,065 EXERCISABLE AT DECEMBER 31, 2019 468 $ 6.69 2.2 $ 544 The total intrinsic value of options exercised during the years ended December 31, 2019 2018 0.8 December 31, 2019 0.1 minimal December 31, 2019 2018 Cash received from option exercises was $ 1.4 December 31, 2019 December 31, 201 8 . Subsidiary Equity Grants On May 5, 2015, the Compensation Committee of the Company’s Board of Directors approved the grant of deferred stock units in GRE representing an aggregate of 3.9 three In August 2018, the Company issued 310,467 1.9 128,865 0.8 The Company recognized aggregate compensation cost related to the vesting of the deferred stock units and other subsidiary equity interests that was $ 1.1 December 31, 2018 December 31, 2019 December 31, 2019 GES and GREI Equity Grants In August 2017, GREI, which holds the Company's interests in ventures in the U. K., Japan and Finland, granted deferred stock units in GREI representing an aggregate of 4.0 $ 0.1 2018 minimal In August 2017, GES, a subsidiary of GRE that holds holds Diversegy, Genie Solar Energy and Prism, granted deferred stock units in GES representing an aggregate of 4.5 % of the outstanding equity in GES to certain of the Company’s officers and a consultant. The deferred stock units vest in equal amounts on the first, second and third anniversaries of the date of grant. The fair value of the GES deferred stock units on the date of grant was minimal, which is being recognized on a straight-line basis over the requisite service period, which approximates the vesting period.

Variable Interest Entity

Variable Interest Entity	12 Months Ended
	Dec. 31, 2019
Variable Interest Entity [Abstract]
Variable Interest Entity	Note 13 Citizens Choice Energy, LLC (“CCE”) is a REP that resells electricity and natural gas to residential and small business customers in the State of New York. The Company does not own any interest in CCE. Since 2011 In October 2015, GRE paid $ 0.2 0.5 100 one 0.5 October 22, 2023 Net income (loss) related to CCE and aggregate net funding repaid to (provided by) the Company were as follows: Year ended December 31, 2019 2018 (in thousands) Net loss $ ( 490 $ ( 1,197 Aggregate provided by repaid to the Company, net $ ( 649 $ ( 809 Summarized consolidated balance sheet amounts related to CCE are as follows: December 31, 2019 2018 (in thousands) ASSETS Cash and cash equivalents $ 250 $ 70 Trade accounts receivable 586 623 Prepaid expenses and other current assets 381 411 Other assets 359 359 TOTAL ASSETS $ 1,576 $ 1,463 LIABILITIES AND NONCONTROLLING INTERESTS Current liabilities $ 467 $ 513 Due to IDT Energy 2,598 1,949 Noncontrolling interests from CCE ( 1,489 ( 999 TOTAL LIABILITIES AND NONCONTROLLING INTERESTS $ 1,576 $ 1,463 The assets of CCE may only be used to settle obligations of CCE, and may not be used for other consolidated entities. The liabilities of CCE are non-recourse to the general credit of the Company’s other consolidated entities.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Accumulated Other Comprehensive Income	Note 14 The accumulated balances for other comprehensive income were as follows: (in thousands) Foreign currency translation Balance at December 31, 2017 $ 3,045 Other comprehensive income attributable to Genie ( 454 Balance at December 31, 2018 2,591 Other comprehensive loss attributable to Genie ( 72 Balance at December 31, 2019 $ 2,519

Legal and Regulatory Proceeding

Legal and Regulatory Proceedings	12 Months Ended
	Dec. 31, 2019
Legal and Regulatory Proceedings [Abstract]
Legal and Regulatory Proceedings	Note 15 Legal Proceedings On October 5, 2018, named plaintiffs Scott Mackey and Daniel Hernandez filed a putative class action complaint against IDT Energy in the United States District Court for the Northern District of Illinois alleging violations of the Telephone Consumer Protection Act, 47 227 1 one four 2 one 12 four one On March 13, 2014, July 2, 2014 and July 15, 2014, named plaintiffs in Pennsylvania, New York and New Jersey commenced three three Under the Settlement Agreement, the Company has agreed to pay certain amounts to resolve the lawsuits and obtain a release of claims that were, or could have been, asserted in the lawsuits or that are related to, or arise out of the conduct alleged in the lawsuits or similar conduct, wherever it may have occurred. The settlement payment includes payments to customers who timely made a claim, class counsel, and the named plaintiffs, as well as the cost of a claims administrator for administrating the claims process. The period for class members to make claims has since expired, and in second quarter of 2019 5.0 For the year ended December 31, 2018, the Company reversed $ 1.7 1.7 On July 23, 2019, the Chapter 7 One 16.0 0.2 the Company has accrued $ 0.2 2019 In addition to the matters disclosed above, the Company may from time to time be subject to legal proceedings that arise in the ordinary course of business. Although there can be no assurance in this regard, the Company does not expect any of those legal proceedings to have a material adverse effect on the Company’s results of operations, cash flows or financial condition. Agency and Regulatory Proceedings From time to time, the Company receives inquiries or requests for information or materials from public utility commissions or other governmental regulatory or law enforcement agencies related to investigations under statutory or regulatory schemes, and the Company responds to those inquiries or requests. The Company cannot predict whether any of those matters will lead to claims or enforcement actions or whether the Company and the regulatory parties will enter into settlements before a formal claim is made. New Jersey Attorney General and New Jersey Board of Public Utilities On May 22, 2018, IDT Energy entered into a Consent Order with the New Jersey Attorney General and the New Jersey Board of Public Utilities to resolve an investigation related to IDT Energy’s pricing and business practices during the winter of 2014 1.4 1.2 2014 2017 1.5 New York Public Service Commission Orders In December 2017, the New York Public Service Commission (“PSC”) held an evidentiary hearing to assess the retail energy market in New York. On December 12, 2019, following the completion of post-hearing briefings in the proceedings, the PSC issued an order adopting the changes to the New York retail energy market, effective May 11, 2020 (" 2020 The 2020 Although the Company is working to ensure that its products and services are fully compatible with the 2020 The Company is evaluating its options, both by itself and in tandem with other industry participants, to challenge or petition for additional clarity and changes to the 2020 2020 2018 63.2 74.2 On December 16, 2016, the PSC issued an order (the “ 2016 2016 2016 2016 18,700 2018 Public Utilities Commission of Ohio In August and November of 2017 0.2 one 0.2 2018 2018 0.6 1.4 State of Connecticut Public Utilities Regulatory Authority On September 19, 2018, the State of Connecticut Public Utilities Regulatory Authority (“PURA”) commenced an investigation into Town Square following customer complaints of allegedly misleading and deceptive sales practices on the part of Town Square. The Connecticut Office of Consumer Counsel has joined in the investigation. Although Town Square denies any basis for those complaints and any wrongdoing on its part, it is cooperating with the investigation and responding to subpoenas for discovery. For the years ended December 31, 2019 and 2018 35.6 24.8 no claims or demands have been made against Town Square by either agency, and there is insufficient basis to deem the loss probable or to the assess the amount of any possible loss. In December 2019, Connecticut’s Public Utility Regulatory Authority (PURA) issued a Proposed Final Decision that would require electric suppliers to return all of their “Hardship Customers” to the local utility company by March 1, 2020. In January 2020, PURA issued a Proposed Final Decision containing new marketing standards for electric suppliers to comply with. The supplier industry has filed opposition to both PURA decisions. State of Illinois Office of the Attorney General In response to complaints that IDT Energy enrolled consumers without their express consent and misrepresented the amount of savings those consumers would receive, the Office of the Attorney General of the State of Illinois (“IL AG”) has been investigating the marketing practices of IDT Energy and has alleged violations of the Consumer Fraud and Deceptive Business Practices Act, 815 505 1 et seq 815 413 1 et seg. Shortly thereafter, the Illinois Commerce Commission ("IL ICC") commenced a similar investigation. 3.0 In third quarter of 2018 3.0 2018 10.1 16.5 Other Informal Reviews or Investigations From time to time regulators will initiate informal reviews or issue subpoenas for information as means to evaluate the Company and its subsidiaries’ compliance with applicable laws, rule, regulations and practices. The Massachusetts Department of Public Utilities opened an informal review and information requests to determine whether the disproportionate number of low-income customers of Town Square, Residents Energy and several other energy retailers in the industry evidences a pattern of misconduct. no claims or demands have been made against Town Square or Residents Energy by the agency, and there is insufficient basis to deem any loss probable or to the assess the amount of any possible loss On October 25, 2019, the Office of the IL AG notified Residents Energy (by way of subpoena) that it is conducting an investigation to assess compliance with the Illinois Consumer Fraud and Deceptive Business Practices Act.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2019
Commitments and Contingencies [Abstract]
Commitments and Contingencies	Note 16 Purchase Commitments The Company had purchase commitments of $ 138.3 December 31, 2019 102.1 December 31, 2019 2020 $ 78,890 2021 39,182 2022 15,270 2023 4,281 2024 640 Total payments $ 138,263 In 2019, the Company purchased $ 27.6 16.1 Renewable Energy Credits GRE must obtain a certain percentage or amount of its power supply from renewable energy sources in order to meet the requirements of renewable portfolio standards in the states in which it operates. This requirement may be met by obtaining renewable energy credits that provide evidence that electricity has been generated by a qualifying renewable facility or resource. At December 31, 2019 36.2 Performance Bonds and Unused Letters of Credit GRE has performance bonds issued through a third party for certain utility companies and for the benefit of various states in order to comply with the states’ financial requirements for REPs. At December 31, 2019 12.5 1.8 BP Energy Company Preferred Supplier Agreement Certain of GRE's REPs are party to an Amended and Restated Preferred Supplier Agreement with BP, which is to be in effect through November 30, 2021 2.5 December 31, 2019 December 31, 2019 1.6 47.8 14.9 December 31, 2019

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2019
Related Party Transactions [Abstract]
Related Party Transactions	Note 17 — Related Party Transactions On June 8, 2018, the Company sold shares of its Class B common stock and warrants to purchase shares of its Class B common stock to Howard S. Jonas (see Note 11 The Company was formerly a subsidiary of IDT Corporation (“IDT”). On October 28, 2011, the Company was spun-off by IDT. The Company entered into various agreements with IDT prior to the spin-off including an agreement for certain services to be performed by the Company and IDT. Also, the Company provides specified administrative services to certain of IDT’s foreign subsidiaries. Howard Jonas is the Chairman and controlling stockholder of IDT. The Company leases office space and parking in New Jersey and Israel from Rafael Holdings, Inc. (“Rafael”) Howard S. Jonas is the Chairman of the Board of Directors, Chief Executive Officer and controlling stockholder of Rafael. The charges for services provided by IDT to the Company, and rent charged by Rafael, net of the charges for the services provided by the Company to IDT, are included in “Selling, general and administrative” expense in the consolidated statements of operations. Year ended December 31, 2019 2018 (in thousands) Amount IDT charged the Company $ 1,142 $ 1,340 Amount the Company charged IDT $ 160 $ 355 Amount Rafael charged the Company $ 222 $ 161 The following table presents the balance of receivables and payables to IDT and Rafael: December 31, 2019 2018 (in thousands) Due to IDT $ 434 $ 267 Due from IDT $ 45 $ 33 Due to Rafael $ — $ — The Company had notes receivable outstanding from employees aggregating $ 0.1 0.2 December 31, 2019 2018 The Company had minimal transactions with Zedge, Inc. (“Zedge”) related to certain employees of the Company providing services to Zedge. Zedge was a subsidiary of IDT and was spun-off in June 2016 and Howard Jonas is a current director. There is minimal amount due from Zedge at December 31, 2019 and 2018. On August 31, 2018, the Company settled an option issued to an employee to purchase shares of the Company’s various subsidiaries with a net book value of $ 1.0 0.8 0.2 From 2012 2015 0.5 0.5 0.1 0.4 0.1 The New Note requires scheduled payments starting on December 31, 2020 until December 31, 2052. 2018 0.1 The Company obtains insurance policies from several insurance brokers, one 0.3 million 2018 There was no outstanding payable to IGM as of December 31, 2019. Neither Howard S. Jonas nor Joyce Mason has any ownership or other interest in IGM other than via the familial relationships with their mother and Jonathan Mason.

Business Segment and Geographic

Business Segment and Geographic Information	12 Months Ended
	Dec. 31, 2019
Business Segment and Geographic Information [Abstract]
Business Segment and Geographic Information	Note 18 In the first quarter of 2019 The Company has four Its REP businesses resell electricity and natural gas to residential and small business customers in the Eastern and Midwestern United States. GRE International, operates REPs in Japan and Finland and manages the Company's share in operations of Shoreditch in the U.K. 86.1 613 The Company’s reportable segments are distinguished by types of service, customers and methods used to provide their services. The operating results of these business segments are regularly reviewed by the Company’s chief operating decision maker. The accounting policies of the segments are the same as the accounting policies of the Company as a whole. The Company evaluates the performance of its business segments based primarily on income (loss) from operations. There are no significant asymmetrical allocations to segments. Operating results for the business segments of the Company were as follows: GRE GRE International GES GOGAS Corporate Total (in thousands) Year ended December 31, 2019 Revenues $ 286,611 $ 16,595 $ 12,085 $ — $ — $ 315,291 Income (loss) from operations 27,176 ( 8,133 ) ( 2,895 ) ( 1,028 ) ( 5,295 ) 9,825 Depreciation and amortization 703 1,819 1,047 57 1 3,627 Impairment of goodwill — — ( 400 ) — — ( 400 ) Equity in the net loss of equity method investees — 4,440 — 291 99 4,830 Year ended December 31, 2018 Revenues $ 274,443 $ — $ 5,696 $ 170 $ — $ 280,309 Income (loss) from operations 28,988 ( 1,201 ) ( 982 ) ( 6,532 ) ( 8,295 ) 11,978 Depreciation and amortization 1,538 1 178 345 — 2,062 Exploration — — — 244 — 244 Write-off of capitalized exploration costs — — — 2,742 — 2,742 Equity in the net loss of Shoreditch — 2,990 — 440 — 3,430 Total assets and investment in equity method investees for the business segments of the Company were as follows: (in thousands) GRE GRE International GES GOGAS Corporate Total (in thousands) Total assets: December 31, 2019 $ 105,937 $ 11,468 $ 19,383 $ 10,873 $ 8,583 $ 156,244 December 31, 2018 113,918 3,654 11,519 15,375 2,398 146,864 Investments in equity method investees: December 31, 2019 $ — $ — $ — $ 275 $ 400 $ 675 December 31, 2018 — 1,679 — 529 — 2,208 Geographic Information Revenues from customers located outside of the United States were, which are located primarily in Finland, Japan and Israel were as follows: United States Foreign Countries Total (in thousands) Year ended December 31, 2019 $ 16,595 $ — $ 16,595 Year ended December 31, 2018 — 170 170 Net long-lived assets and total assets held outside of the United States, which are located primarily in Finland, Japan and Israel, were as follows: United States Foreign Countries Total (in thousands) December 31, 2019 Long-lived assets, net $ 17,498 $ 4,440 $ 21,938 Total assets 143,738 12,506 156,244 December 31, 2018 Long-lived assets, net $ 20,529 $ 1,409 $ 21,938 Total assets 141,336 5,528 146,864

Subsequent Event

Subsequent Event	12 Months Ended
	Dec. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	Note 19 In the first quarter of 2020 92.5 On February 18, 2020, named Plaintiff Danelle Davis filed a putative class action complaint against Residents Energy and GRE in United States District Court for the District of New Jersey alleging violation of the Telephone Consumer Protection Act, 47 § 227

Description of Business and S_2

Description of Business and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2019
Description of Business and Summary of Significant Accounting Policies [Abstract]
Description of Business	Description of Business Genie Energy Ltd. (“Genie”), a Delaware corporation, was incorporated in January 2011. Genie owns 99.3 100 100 100 97.0 GRE, owns and operates retail energy providers (“REPs”), including IDT Energy, Inc. (“IDT Energy”), Residents Energy, LLC (“Residents Energy”), Town Square Energy, LLC and Town Square Energy East, LLC (collectivity, “TSE”), Southern Federal Power, LLC ("Southern Power") and Mirabito Natural Gas (“Mirabito”). GRE's REP businesses resell electricity and natural gas primarily to residential and small business customers in the Eastern and Midwestern United States. GRE International holds the Company's 73.0 80.0 2 89.0 GES oversees LLC (" "), a retail energy advisory and brokerage company that serves commercial and industrial customers throughout the United States ("U.S.") and manages 60.0 Prism Solar Technology, Inc. ("Prism") (see Note 2 GOGAS is an oil and gas exploration company and owns an interest in a contracted drilling services operation. 86.1 controlling interests in inactive oil and gas projects. GOGAS also holds a 37.5 613 2 Seasonality and Weather The weather and the seasons, among other things, affect GRE’s revenues. Weather conditions have a significant impact on the demand for natural gas used for heating and electricity used for heating and cooling. Typically, colder winters increase demand for natural gas and electricity, and hotter summers increase demand for electricity. Milder winters and/or summers have the opposite effect. Unseasonal temperatures in other periods may also impact demand levels. Natural gas revenues typically increase in the first quarter due to increased heating demands and electricity revenues typically increase in the third quarter due to increased air conditioning use. Approximately 46.9 50.3 2019 2018 31.8 29.5 2019 2018
Basis of Consolidation	Basis of Consolidation The method of accounting applied to long-term investments, whether consolidated, equity or cost, involves an evaluation of the significant terms of each investment that explicitly grant or suggest evidence of control or influence over the operations of the investee and also includes the identification of any variable interests in which the Company is the primary beneficiary. The consolidated financial statements include the Company’s controlled subsidiaries and the variable interest entity in which the Company is the primary beneficiary (see Note 13 2 Acquisitions and Divestment
Accounting for Investments	Equity Method Investments Investments in businesses that the Company does not control, but in which the Company has the ability to exercise significant influence over operating and financial matters, are accounted for using the equity method. The Company periodically evaluates its equity method investments for impairment due to declines considered to be other than temporary. If the Company determines that a decline in fair value is other than temporary, then a charge to earnings is recorded, and a new basis in the investment is established.
Use of Estimates	Use of Estimates The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”) requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Significant estimates affecting amounts reported or disclosed in the consolidated financial statements include revenues, accounts receivables, allowances for doubtful accounts receivable, net realizable value of inventories, valuation of intangible assets, depreciation and amortization periods for long-lived assets, valuation allowances recorded against deferred tax assets, the valuation of stock-based compensation, valuation of derivative instruments, valuation of debt instruments and loss contingencies. These estimates are based on historical experience and on various other assumptions that are believed to be reasonable under the current circumstances. Actual results may differ from those estimates.
Revenue Recognition	Revenue Recognition Revenues from the Sale of Electricity and Natural Gas Revenue from the single performance obligation to deliver a unit of electricity and/or natural gas is recognized as the customer simultaneously receives and consumes the benefit. Variable quantities in requirements contracts are considered to be options for additional goods and services because the customer has a current contractual right to choose the amount of additional distinct goods. The Company records unbilled revenues for the estimated amount customers will be billed for services rendered from the time meters were last read to the end of the respective accounting period. The unbilled revenue is estimated each month based on available per day usage data, the number of unbilled days in the period adjusted for seasonality-based cooling and heating degree-days and historical trends. Utility companies offer purchase of receivable, or POR, programs in most of the service territ The Company recognizes the incremental costs of obtaining a contract with a customer as an asset if it expects the benefit of those costs to be longer than one year. The Company determined that certain sales commissions to acquire customers meet the requirements to be capitalized. For GRE, the Company applies a practical expedient to expense costs as incurred for sales commissions to acquire customers as the period would have been one year or less. Incremental customer acquisition cost of are capitalized and amortized over eighteen months . These costs and the related amortization are recorded within sales and marketing expenses. Total capitalized customer acq uisition costs to obtain a contract was $ 0.8 million for the year ended December 31, 2019 0.6 0.1 Revenues from Sale of Solar Panels The revenue from sales of solar panels are recognized at a point in time following the transfer of control of the solar panels to the customer, which typically occurs upon shipment or delivery depending on the terms of the underlying contracts. For sales contracts that contain multiple performance obligations, such as the shipment or delivery of solar panels, we allocate the transaction price to each performance obligation identified in the contract based on relative standalone selling prices, or estimates of such prices, and recognize the related revenue as control of each individual product is transferred to the customer, in satisfaction of the corresponding performance obligations. Revenues from sales of solar panels are included under the Other Revenues in the consolidated statements of income. The following table shows the Company’s revenues disaggregated by pricing plans offered to customers: Electricity Natural Gas Other Total (in thousands) For the year ended December 31, 2019 Fixed rate $ 108,523 $ 4,001 $ — $ 112,524 Variable rate 154,568 35,925 — 190,493 Other — — 12,274 12,274 Total $ 263,091 $ 39,926 $ 12,274 $ 315,291 For the year ended December 31, 2018 Fixed rate $ 77,383 $ 2,781 $ — $ 80,164 Variable rate 150,500 43,779 — 194,279 Other — — 5,866 5,866 Total $ 227,883 $ 46,560 $ 5,866 $ 280,309 The following table shows the Company’s revenues disaggregated by non-commercial and commercial channels: Electricity Natural Gas Other Total (in thousands) For the year ended December 31, 2019 Non-Commercial Channel $ 232,511 $ 33,979 $ — $ 266,490 Commercial Channel 30,580 5,947 — 36,527 Other — — 12,274 12,274 Total $ 263,091 $ 39,926 $ 12,274 $ 315,291 For the year ended December 31, 2018 Non-Commercial Channel $ 217,019 $ 43,383 $ — $ 260,402 Commercial Channel 10,864 3,177 — 14,041 Other — — 5,866 5,866 Total $ 227,883 $ 46,560 $ 5,866 $ 280,309 Contract Liabilities December 31, 2019 2018 (in thousands) Contract liability, beginning $ 1,137 $ 205 Recognition of revenue included in the beginning of year contract liability ( 635 ( 205 Additions during the period, net of revenue recognized during the period 12,924 1,137 Contract liability, end $ 13,426 $ 1,137
Oil and Gas Exploration Costs	Oil and Gas Exploration The Company accounts for its oil and gas activities under the successful efforts method of accounting. Under this method, the costs of drilling exploratory wells and exploratory-type stratigraphic test wells are capitalized, pending determination of whether the well has found proved reserves. Other exploration costs are charged to expense as incurred. Unproved properties are assessed for impairment, and if considered impaired, are charged to expense when such impairment is deemed to have occurred.
Cash, Cash Equivalents and Restricted Cash	Cash, Cash Equivalents and Restricted Cash The Company considers all highly liquid investments with an original maturity of three The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported in the consolidated balance sheet that equals the total of the same amounts reported in the consolidated statement of cash flows: December 31, 2019 2018 (in thousands) Cash and cash equivalents $ 31,242 $ 41,601 Restricted cash—short-term included in other current assets 6,792 1,653 Restricted cash—long-term 520 943 Total cash, cash equivalents, and restricted cash $ 38,554 $ 44,197 Restricted cash—short-term includes amounts set aside in accordance with the Amended and Restated Preferred Supplier Agreement with BP Energy Company (“BP”) (see Note 16 9
Trade Accounts Receivable, Net	Trade Accounts Receivable, Net Trade accounts receivable, net is reported in the balance sheet as gross outstanding amounts adjusted for doubtful accounts.
Inventories	Inventories Inventory consists of natural gas, renewable energy credits and solar panels. Natural Gas Natural gas inventory is stored at various third parties’ underground storage facilities and is stated at lower of cost or net realizable value. Company’s natural gas inventory was valued at weighted average cost, which was based on the purchase price of the natural gas and the cost to transport, plus or minus injections or withdrawals. Renewable Energy Credits GRE must obtain a certain percentage or amount of its power supply from renewable energy sources in order to meet the requirements of renewable portfolio standards in the states in which it operates. This requirement may be met by obtaining renewable energy credits that provide evidence that electricity has been generated by a qualifying renewable facility or resource. GRE holds renewable energy credits for both sale and use, and treats the credits as a government incentive to encourage the construction of renewable power plants. Renewable energy credits are valued at the lower of cost and net realizable value. Gains and losses from the sale of renewable energy credits are recognized in cost of revenues when the credits are transferred to the buyer. Solar Panels Inventories related to solar panels are stated at the lower of cost or net realizable value. The cost is determine using the first-in, first-out basis and includes both the costs of acquisition and the costs of manufacturing. These costs include direct material, direct labor, and indirect manufacturing costs. The Company regularly reviews the cost of inventories against their estimated net realizable value and records write-downs if any inventories have costs in excess of their net realizable values. The Company also regularly evaluates the quantities and values of inventories, in light of current market conditions and trends among other factors and records write-downs for any quantities in excess of demand or for any obsolescence. This evaluation considers the use of modules in the systems business, expected demand, anticipated sales prices, strategic raw material requirements, new product development schedules, the effect new products might have on the sale of existing products, product obsolescence, product merchantability, and other factors. Market conditions are subject to change, and actual consumption of our inventory could differ from forecasted demand. Inventories consisted of the following: December 31, 2019 2018 (in thousands) Natural gas $ 1,052 $ 1,116 Renewable credits 14,940 8,654 Solar Panels: Finished goods 424 40 Raw materials 216 83 Total solar panels inventory 640 123 Totals $ 16,632 $ 9,893
Long-Lived Assets	Long-lived Assets Property, plant and equipment - net is stated at historical cost less accumulated depreciation and any impairment. The Company provides for depreciation using a straight-line method over estimated useful life of the assets. Any leasehold improvements are amortized over the lesser of the lease term or the useful life. The cost of major additions and improvements are capitalized, while maintenance and repair costs that do not improve or extend the lives of the respective assets are charged to operations as incurred. The estimated useful life of property plant and equipment as follows: Years Building and improvements 4 27 Machinery and equipment 2 9 Computer software and development 2 5 Computers and computer hardware 2 5 Office equipment and other 5 7 The fair value of patents and trademarks, non-compete agreements and customer relationships acquired in a business combination accounted for under the purchase method are amortized over their estimated useful lives as follows: patents and trademarks are amortized on a straight-line basis over 5 to 20 2 3 2 9 The Company tests the recoverability of its long-lived assets with finite useful lives whenever events or changes in circumstances indicate that the carrying value of the asset may not be recoverable. The Company tests the recoverability based on the projected undiscounted cash flows to be derived from such asset. If the projected undiscounted future cash flows are less than the carrying value of the asset, the Company will record an impairment loss based on excess of carrying value over fair value of the assets. The Company generally measures fair value by considering sale prices for similar assets or by discounting estimated future cash flows from such asset using an appropriate discount rate. Cash flow projections and fair value estimates require significant estimates and assumptions by management. Should the estimates and assumptions prove to be incorrect, the Company may be required to record impairments in future periods and such impairments could be material.
Acquisitions	Acquisitions Results of operations of acquired companies are included in the Company’s results of operations as of the respective acquisition dates. The purchase price of each acquisition is allocated to the net assets acquired based on estimates of their fair values at the date of the acquisition. Any purchase price in excess of these net assets is recorded as goodwill. The allocation of purchase price in certain cases may be subject to revision based on the final determination of fair values during the measurement period, which may be up to one
Goodwill and Indefinite Lived Intangible Assets	Goodwill and Indefinite Lived Intangible Assets Goodwill is the excess of the acquisition cost of businesses over the fair value of the identifiable net assets acquired. Goodwill and other indefinite lived intangible assets are not amortized. These assets are reviewed annually (or more frequently under various conditions) for impairment using a fair value approach. In the first quarter of 2019 The change in reportable segments did not result in the reallocation of the Company's existing goodwill. Segment information from the prior year's financial statements have been reclassified in order to conform to the current year's presentation (see Note 18 ). The Company has four five The fair value of the reporting unit is estimated using discounted cash flow methodologies, as well as considering third party market value indicators. Calculating the fair value of the reporting units requires significant estimates and assumptions by management. Should the estimates and assumptions regarding the fair value of the reporting units prove to be incorrect, the Company may be required to record impairments to its goodwill in future periods and such impairments could be material. The Company performed its annual goodwill impairment test as of October 1, 2019. In reviewing goodwill for impairment, the Company has the option, for any or all of its reporting units that carry goodwill - to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not (i.e. greater than 50 T he determination of the fair value of our reporting units is based on an income approach, that utilizes discounted cash flows for each reporting 3 820 Fair Value Measurements and Disclosure
Derivative Instruments and Hedging Activities	Derivative Instruments and Hedging Activities The Company records its derivatives instruments at their respective fair values. The accounting for changes in the fair value (that is, gains or losses) of a derivative instrument is dependent upon whether the derivative has been designated and qualifies as part of a hedging relationship and further, on the type of hedging relationship. Due to the volatility of electricity and natural gas prices, GRE and GRE International enters into futures contracts, swaps and put and call options as hedges against unfavorable fluctuations in market prices of electricity and natural gas and to reduce exposure from price fluctuations. The Company does not designate its derivative instruments to qualify for hedge accounting, accordingly the futures contracts, swaps and put and call options are recorded at fair value as a current asset or liability and any changes in fair value are recorded in “Cost of revenues” in the consolidated statements of operations. In addition to the above, GRE and GRE International utilize forward physical delivery contracts for a portion of its purchases of electricity and natural gas, which are defined as commodity derivative contracts. Using the exemption available for qualifying contracts, GRE and GRE International apply the normal purchase and normal sale accounting treatment to its forward physical delivery contracts, thereby these contracts are not adjusted to fair value. GRE and GRE International also apply the normal purchase and normal sale accounting treatment to forward contracts for the physical delivery of electricity in nodal energy markets that result in locational marginal pricing charges or credits, since this does not constitute a net settlement, even when legal title to the electricity is conveyed to the ISO during transmission. Accordingly, GRE and GRE International recognize revenue from customer sales, and the related cost of revenues, at the contracted price, as electricity and natural gas is delivered to retail customers.
Shipping and Handling Fees and Costs	Shipping and Handling Fees and Costs Amounts billed to customers for shipping and handling are included in revenues. The related minimal 0.3 0.1 December 31, 2019 2018
Foreign Currency	Foreign Currency Assets and liabilities of foreign subsidiaries denominated in foreign currencies are translated to U.S. Dollars at end-of-period rates of exchange, and their monthly results of operations are translated to U.S. Dollars at the average rates of exchange for that month. Gains or losses resulting from such foreign currency translations are recorded in “Accumulated other comprehensive income” in the accompanying consolidated balance sheets. Foreign currency transaction gains and losses are reported in “Other (expense) income, net” in the accompanying consolidated statements of operations.
Advertising Expense	Advertising Expense Cost of advertising for customer acquisitions is charged to selling, general and administrative expense in the period in which it is incurred. Most of the advertisements are in print, over the radio, or direct mail. In the years ended December 31, 2019 2018 4.1 2.4
Income Taxes	Income Taxes The Company recognizes deferred tax assets and liabilities for the future tax consequences attributable to temporary differences between the financial statements carrying amounts of existing assets and liabilities and their respective tax bases. A valuation allowance is provided when it is more likely than not that some portion or all of a deferred tax asset will not be realized. The ultimate realization of deferred tax assets depends on the generation of future taxable income during the period in which related temporary differences become deductible. The Company considers the scheduled reversal of deferred tax liabilities, projected future taxable income and tax planning strategies in its assessment of a valuation allowance. Deferred tax assets and liabilities are measured using the enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date of such change. The Company uses a two 50 one The Company classifies interest and penalties on income taxes as a component of income tax expense.
Contingencies	Contingencies The Company accrues for loss contingencies when both (a) information available prior to issuance of the financial statements indicates that it is probable that a liability had been incurred at the date of the financial statements and (b) the amount of loss can reasonably be estimated. When the Company accrues for loss contingencies and the reasonable estimate of the loss is within a range, the Company records its best estimate within the range. When no amount within the range is a better estimate than any other amount, the Company accrues the minimum amount in the range. The Company discloses an estimated possible loss or a range of loss when it is at least reasonably possible that a loss may have been incurred.
Earnings Per Share	Earnings Per Share Basic earnings per share is computed by dividing net income or loss attributable to all classes of common stockholders of the Company by the weighted average number of shares of all classes of common stock outstanding during the applicable period. Diluted earnings per share is determined in the same manner as basic earnings per share, except that the number of shares is increased to include restricted stock still subject to risk of forfeiture and to assume exercise of potentially dilutive stock options and warrants using the treasury stock method, unless the effect of such increase is anti-dilutive. The weighted-average number of shares used in the calculation of basic and diluted earnings per share attributable to the Company’s common stockholders consists of the following: Year ended December 31, 2019 2018 (in thousands) Basic weighted-average number of shares $ 26,607 $ 25,154 Effect of dilutive securities Stock options and warrants 718 130 Non-vested restricted Class B common stock 139 411 Diluted weighted-average number of shares $ 27,464 $ 25,695 The following shares were excluded from the diluted earnings per share computations because they were anti-dilutive: Year ended December 31, (in thousands) 2019 2018 Stock options 126 341
Stock-Based Compensation	Stock-Based Compensation The Company recognizes compensation expense for grants of stock-based awards to its employees based on the estimated fair value on the grant date. Compensation cost for awards is recognized using the straight-line method over the requisite service period, which approximates the vesting period. Stock-based compensation is included in selling, general and administrative expense. Forfeitures are recognized as incurred.
Vulnerability Due to Certain Concentrations	Vulnerability Due to Certain Concentrations Financial instruments that potentially subject the Company to concentration of credit risk consist principally of cash, cash equivalents, restricted cash, certificates of deposit and trade accounts receivable. The Company holds cash, cash equivalents and restricted cash at several major financial institutions, which may exceed FDIC insured limits. Historically, the Company has not experienced any losses due to such concentration of credit risk. The Company’s temporary cash investments policy is to limit the dollar amount of investments with any one GRE’s REPs reduce their customer credit risk by participating in purchase of receivable, or POR, programs for a majority of their receivables. In addition to providing billing and collection services, certain utility companies purchase those REPs’ receivables and assume all credit risk without recourse to those REPs for those purchased receivables. GRE’s REPs’ primary credit risk with respect to those purchased receivables is therefore nonpayment by the utility companies. Certain of the utility companies represent significant portions of the Company’s consolidated revenues and consolidated gross trade accounts receivable balance during certain period, and such concentrations increase the Company’s risk associated with nonpayment by those utility companies. The following table summarizes the percentage of consolidated revenues from customers by utility company that equal or exceed 10 10 Year ended December 31, 2019 2018 Con Edison na % 11 % na – less than 10 There was no single utility company accounted for 10 December 31, 2019 2018
Allowance for Doubtful Accounts	Allowance for Doubtful Accounts The allowance for doubtful accounts reflects the Company’s best estimate of probable losses inherent in the accounts receivable balance. The allowance is determined based on known troubled accounts, historical experience and other currently available evidence. Doubtful accounts are written-off upon final determination that the trade accounts will not be collected. The change in the allowance for doubtful accounts was as follows: (in thousands) Balance at beginning of period Additions charged (reversals credited) to expense Additions (deductions) Balance at end of period Year ended December 31, 2019 Reserves deducted from accounts receivable: Allowance for doubtful accounts $ 2,003 $ 658 $ ( 30 $ 2,631 Year ended December 31, 2018 Reserves deducted from accounts receivable: Allowance for doubtful accounts $ 1,099 $ 904 $ — $ 2,003
Reclassifications	Reclassifications Certain amounts from the prior year's financial statements have been reclassified in order to conform to the current year's presentation. Fair Value Measurements Fair value of financial and non-financial assets and liabilities is defined as an exit price, which is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The three Level 1 — quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 — quoted prices for similar assets and liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument. Level 3 — unobservable inputs based on the Company’s assumptions used to measure assets and liabilities at fair value. A financial asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. The assessment of the significance of a particular input to the fair value measurement requires judgment, and may affect the valuation of the assets and liabilities being measured and their placement within the fair value hierarchy.
Accounting Standards Updates	Accounting Standards Updates In May 2014, the Financial Accounting Standards Board (“FASB”) issued ASC 606 1 2 3 4 5 606 In January 2016, the FASB issued ASU No. 2016 01 Recognition and Measurement of Financial Assets and Financial Liabilities 1 2 3 4 In February 2016, the FASB issued ASU No. 2016 02 Leases (Topic 842 12 2016 - 02 , in July 2018, the FASB issued Accounting Standards Update No. 2018 - 10 , Codification Improvements to Topic 842 , Leases ("ASU 2018 - 10 ") and Accounting Standards Update No. 2018 - 11 , Leases (Topic 842 ): Targeted Improvements ("ASU 2018 - 11 "). The amendments in ASU 2018 - 10 clarify, correct or remove inconsistencies in the guidance provided under ASU 2016 - 02 related to sixteen specific issues identified. The amendments in ASU 2018 - 11 provide entities with an additional (and optional) transition method to adopt the new leases standard. Under the new transition method, an entity initially applies the new leases standard at the adoption date and recognizes a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Consequently, an entity's reporting for the comparative periods presented in the financial statements in the period of adoption will continue to be in accordance with ASC 840 , Leases ("ASC 840 "). An entity that elects this additional (and optional) transition method must provide the required disclosures under ASC 840 for all periods that continue to be in accordance with ASC 840 . ASU 2018 - 11 also provides lessors with a practical expedient, by class of underlying asset, to not separate nonlease components from the associated lease component and, instead, to account for those components as a single component if certain criteria are met. The effective date and transition requirements for these two standards are the same as the effective date and transition requirements of ASU 2016 - 02 . The standards were effective for the Company beginning after December 15, 2018. The Company adopted Topic 842 as of January 1, 2019 using a modified retrospective transition method. The financial results reported in periods prior to January 1, 2019 are not adjusted. The Company also elected the package of practical expedients, which among other things, does not require reassessment of lease classification. As most of the Company's leases do not provide an implicit rate, we used our collateralized incremental borrowing rate based on the information available at the lease implementation date in determining the present value of the lease payments. At January 1, 2019, the Company recognized $ 2.4 million of ROU assets related to the Company's operating leases. The ROU was included in other assets in the consolidated balance sheet. The Company also recognized $ 0.4 million and $ 2.0 million of current and noncurrent lease liabilities, included in other current liabilities and other liabilities in the consolidated balance sheets. In June 2016, the FASB issued ASU No. 2016 13 Measurement of Credit Losses on Financial Instruments The Company is currently evaluating the requirements of this guidance and has not yet determined the impact of its adoption on the Company's consolidated financial position, results of operations and cash flows. In November 2016, the FASB issued ASU No. 2016 18 Restricted Cash The Company adopted the amendments in this ASU on January 1, 2018. Certain amounts from the prior year's statements of cash flows have been reclassified in order to conform to the 2018 The adoption did not have a material impact on the Company's consolidated balance sheets and results of operations. In January 2017, the FASB issued ASU No. 2017 01 Business Combinations three 1 2 two 2017 01 The Company accounted for the Smile Energy G.K. ("Smile Energy") acquisition as an asset acquisition (see Note 2 Acquisitions and Divestitures The adoption did not have a material impact on the Company's consolidated balance sheets, results of operations and cash flows, other than the impact discussed above. In June 2018, the FASB issued ASU No. 2018 07 Improvements to Nonemployee Share-Based Payment Accounting 718 718 718 718 1 2 606 0.3 In August 2018, the FASB issued ASU No. 2018 13 Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement 3 3 In November 2018, the FASB issued ASU No. 2018 17 Targeted Improvements to Related Party Guidance for Variable Interest Entities In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes

Description of Business and S_3

Description of Business and Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2019
Description of Business and Summary of Significant Accounting Policies [Abstract]
Schedule of company's revenue disaggregated by customer, commercial and non commercial	Electricity Natural Gas Other Total (in thousands) For the year ended December 31, 2019 Non-Commercial Channel $ 232,511 $ 33,979 $ — $ 266,490 Commercial Channel 30,580 5,947 — 36,527 Other — — 12,274 12,274 Total $ 263,091 $ 39,926 $ 12,274 $ 315,291 For the year ended December 31, 2018 Non-Commercial Channel $ 217,019 $ 43,383 $ — $ 260,402 Commercial Channel 10,864 3,177 — 14,041 Other — — 5,866 5,866 Total $ 227,883 $ 46,560 $ 5,866 $ 280,309 Electricity Natural Gas Other Total (in thousands) For the year ended December 31, 2019 Fixed rate $ 108,523 $ 4,001 $ — $ 112,524 Variable rate 154,568 35,925 — 190,493 Other — — 12,274 12,274 Total $ 263,091 $ 39,926 $ 12,274 $ 315,291 For the year ended December 31, 2018 Fixed rate $ 77,383 $ 2,781 $ — $ 80,164 Variable rate 150,500 43,779 — 194,279 Other — — 5,866 5,866 Total $ 227,883 $ 46,560 $ 5,866 $ 280,309
Schedule of recognized as contract liability	December 31, 2019 2018 (in thousands) Contract liability, beginning $ 1,137 $ 205 Recognition of revenue included in the beginning of year contract liability ( 635 ( 205 Additions during the period, net of revenue recognized during the period 12,924 1,137 Contract liability, end $ 13,426 $ 1,137
Schedule of reconciliation of cash and restricted cash	December 31, 2019 2018 (in thousands) Cash and cash equivalents $ 31,242 $ 41,601 Restricted cash—short-term included in other current assets 6,792 1,653 Restricted cash—long-term 520 943 Total cash, cash equivalents, and restricted cash $ 38,554 $ 44,197
Schedule of inventory	December 31, 2019 2018 (in thousands) Natural gas $ 1,052 $ 1,116 Renewable credits 14,940 8,654 Solar Panels: Finished goods 424 40 Raw materials 216 83 Total solar panels inventory 640 123 Totals $ 16,632 $ 9,893
Schedule of estimated useful life of property plant and equipment	Years Building and improvements 4 27 Machinery and equipment 2 9 Computer software and development 2 5 Computers and computer hardware 2 5 Office equipment and other 5 7
Schedule of exercise price of stock options	Year ended December 31, (in thousands) 2019 2018 Stock options 126 341
Schedule of antidilutive shares were excluded from the diluted earnings per share computations	Year ended December 31, 2019 2018 (in thousands) Basic weighted-average number of shares $ 26,607 $ 25,154 Effect of dilutive securities Stock options and warrants 718 130 Non-vested restricted Class B common stock 139 411 Diluted weighted-average number of shares $ 27,464 $ 25,695
Schedule of percentage of consolidated revenues from customers by utility company and percentage of consolidated gross trade accounts receivable by utility company	Year ended December 31, 2019 2018 Con Edison na % 11 % na – less than 10
Schedule of change in allowance for doubtful accounts	(in thousands) Balance at beginning of period Additions charged (reversals credited) to expense Additions (deductions) Balance at end of period Year ended December 31, 2019 Reserves deducted from accounts receivable: Allowance for doubtful accounts $ 2,003 $ 658 $ ( 30 $ 2,631 Year ended December 31, 2018 Reserves deducted from accounts receivable: Allowance for doubtful accounts $ 1,099 $ 904 $ — $ 2,003

Acquisitions and Divestiture (T

Acquisitions and Divestiture (Tables)	12 Months Ended
	Dec. 31, 2019
Business Acquisition [Line Items]
Schedule of business acquisitions notes payable	4.75 $ 863 Less: Current portion 86 Total $ 777
Schedule of annual maturities of term loan	2020 $ 86 2021 86 2022 86 2023 86 2024 86 Thereafter 433 Total $ 863
Mirabito Natural Gas [Member]
Business Acquisition [Line Items]
Schedule of pro forma information	Year ended December 31, 2019 2018 (in thousands) Total revenues $ 293,694 $ 281,847 Net income 217,746 21,524 Net income attributable to Genie Energy Ltd. common stockholders 20,634 22,511 Earnings per share attributable to Genie energy Ltd. common stockholders Basic 0.81 0.89 Diluted 0.80 0.88
Prism Solar Technologies, Inc. [Member]
Business Acquisition [Line Items]
Schedule of acquisition's purchase price allocations	(in thousands) Supplemental information Cash contributed to Prism $ 899 Notes receivable from Prism, including accrued interest, converted to Prism's equity 1,351 Cash payment to previous equity holders of Prism 250 2,500 Notes payable issued to Prism 1,500 Total considerations $ 4,000 (in thousands) Cash $ 931 Trade accounts receivable 11 Inventories 1,142 Other current assets 260 Property plant and equipment ( 19 3,564 Intangible assets: Trademark ( 10 320 Patent ( 10 370 Customer contract ( 3 1,600 Goodwill 804 Accounts payable accrued expenses ( 1,723 ) Notes payable — ( 63 ) Other current liabilities ( 1,164 ) Notes payable — net of current portion ( 885 ) Noncontrolling interest ( 2,667 ) Net assets $ 2,500
Schedule of business acquisitions notes payable	December 31, 2018 October 25, 2018 (in thousands) 5.95 7,184 $ 893 $ 918 20.00 30 30 923 948 Less: Current maturities 923 63 Noncurrent portion $ — $ 885
Lumo [Member]
Business Acquisition [Line Items]
Schedule of acquisition's purchase price allocations	(in thousands) Supplemental information Cash paid to Sellers $ 1,869 Cash contributed to Lumo 1,522 Total consideration $ 3,391 (in thousands) Cash $ 1,539 Trade accounts receivable 2,520 Other current assets 411 Intangible assets: Trademark ( 5 294 Non-compete agreements ( 3 34 Customer relationship ( 2 1,924 Goodwill 1,744 Other assets 95 Accounts payable and other current liabilities ( 2,403 Short-term debts ( 2,260 Other liabilities ( 97 Noncontrolling interest ( 410 Net assets $ 3,391

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2019
Fair Value Measurements [Abstract]
Schedule of balance of assets and liabilities measured at fair value on a recurring basis	(in thousands) Level 1 ( 1 Level 2 ( 2 Level 3 ( 3 Total December 31, 2019 Assets: Derivative contracts $ 5 $ 322 $ — $ 327 Liabilities: Derivative contracts $ 1,569 $ 410 $ — $ 1,979 December 31, 2018 Assets: Derivative contracts $ 1,107 $ 467 $ — $ 1,574 Liabilities: Derivative contracts $ 2,100 $ 248 $ — $ 2,348 ( 1 quoted prices in active markets for identical assets or liabilities ( 2 observable inputs other than quoted prices in active markets for identical assets and liabilities ( 3 no observable pricing inputs in the market
Schedule of balance of assets and liabilities	(in thousands) Level 1 ( 1 Level 2 ( 2 Level 3 ( 3 Total December 31, 2019 Impairment of goodwill $ — $ — $ 400 $ 400 December 31, 2018 Impairment of assets (Atid) $ — $ — $ 2,742 $ 2,742

Derivative Instruments (Tables)

Derivative Instruments (Tables)	12 Months Ended
	Dec. 31, 2019
Derivative Instruments [Abstract]
Summarized volume of GRE's outstanding contracts and options	Commodity Settlement Dates Electricity (In MWH) Natural Gas (In Dth) First quarter 2020 186,005 359,710 Second quarter 2020 95,000 138,920 Third quarter 2020 85,000 105,702 Fourth quarter 2020 44,680 83,051 First quarter 2021 — 79,500 Second quarter 2021 — 60,400 Third quarter 2021 — 45,700 Fourth quarter 2021 — 38,450 First quarter 2022 — 28,600 Second quarter 2022 — 16,450 Third quarter 2022 — 2,850 Fourth quarter 2022 — 1,450
Schedule of fair value of outstanding derivative instruments recorded as assets and liability	December 31, 2019 2018 Asset Derivatives Balance Sheet Location (in thousands) Derivatives not designated or not qualifying as hedging instruments: Energy contracts and options ( 1 Other current assets $ 324 $ 1,116 Energy contracts and options Other assets 3 458 Total derivatives not designated or not qualifying as a hedging instruments — $ 327 $ 1,574 Liability Derivatives Derivatives not designated or not qualifying as hedging instruments: Energy contracts and options ( 1 Other current liabilities $ 1,909 $ 2,028 Energy Contracts and options Other liabilities 70 320 Total derivatives not designated or not qualifying as a hedging instruments — $ 1,979 $ 2,348 ( 1 The Company classifies derivative assets and liabilities as current based on the cash flows expected to be incurred within the following 12 .
Effects of derivative instruments on the consolidated statements of operations	Amount of Loss Recognized on Derivatives Year ended December 31, (in thousands) 2019 2018 Derivatives not designated or not qualifying as hedging instruments Location of Loss Recognized on Derivatives Energy contracts and options Cost of revenues $ 24,810 $ 2,013

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2019
Leases [Line Items]
Schedule of operating lease expense	(in thousands) December 31, 2019 ROU assets $ 2,357 Current portion of operating lease liabilities 479 Noncurrent portion of operating lease liabilities 1,917 Total $ 2,396
Schedule of supplemental cash flow information	(in thousands) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating activities $ 883 ROU assets obtained in the exchange for lease liabilities Operating leases $ 301
Schedule of future operating lease	(in thousands) 2020 632 2021 551 2022 242 2023 221 2024 225 Thereafter 1,305 Total future lease payments 3,176 Less imputed interest 780 Total operating lease liabilities $ 2,396
Operating Leases [Member]
Leases [Line Items]
Schedule of future operating lease	(in thousands) 2019 527 2020 428 2021 377 2022 217 2023 221 Thereafter 1,530 Total operating lease liabilities $ 3,300

Investments in Equity Method _2

Investments in Equity Method Investees (Tables)	12 Months Ended
	Dec. 31, 2019
Atid Drilling Ltd. [Member]
Schedule of Equity Method Investments [Line Items]
Schedule of investment	December 31 2019 2018 (in thousands) Balance, beginning of period $ 529 $ — Capital contributions — 1,000 Equity in net loss ( 291 ) ( 440 Foreign currency translation adjustments 36 ( 31 Balance, end of period $ 274 $ 529
Shoreditch [Member]
Schedule of Equity Method Investments [Line Items]
Schedule of investment	For the year ended December 31, 2019 2018 (in thousands) Balance, beginning of period $ 1,679 $ 3,450 Capital contributions 2,735 1,306 Foreign currency translation adjustment 26 ( 87 Equity in the net loss ( 4,440 ( 2,990 ) Balance, end of period $ — $ 1,679

Property and Equipment (Tables)

Property and Equipment (Tables)	12 Months Ended
	Dec. 31, 2019
Property and Equipment [Abstract]
Schedule of property and equipment	December 31, 2019 2018 (in thousands) Land $ 230 $ 230 Building and improvements 2,349 2,291 Manufacturing equipment 1,434 1,403 Computer software 2,549 2,229 Computers and computer hardware 244 237 Office equipment and other 146 270 6,952 6,660 Less: accumulated depreciation ( 3,345 ) ( 2,359 ) Property and equipment, net $ 3,607 $ 4,301

Goodwill and Other Intangibles

Goodwill and Other Intangibles (Tables)	12 Months Ended
	Dec. 31, 2019
Goodwill and Other Intangibles [Abstract]
Schedule of goodwill	GRE GRE Intern ational GES Total (in thousands) Balance at January 1, 2018 $ 9,998 $ — $ — $ 9,998 Acquisition of Prism (see Note 2 — — 1,084 1,084 Balance at December 31, 2018 9,998 — 1,084 11,082 Acquisition of Lumo (see Note 2 — 1,744 — 1,744 Prism acquisition purchase price allocation adjustment (see Note 2 — — ( 280 ( 280 Impairment of Prism goodwill — — ( 400 ( 400 Cumulative translation adjustment — ( 11 — ( 11 Balance at December 31, 2019 $ 9,998 $ 1,733 $ 404 $ 12,135
Schedule of other intangible assets	Weighted Average Amortization Period Gross Carrying Amount Accumulated Amortization Net Balance December 31, 2019 (in thousands) Patents and trademarks 17.1 $ 3,842 $ ( 560 $ 3,282 Non-compete agreement 1.6 148 ( 126 22 Customer relationships 3.9 6,706 ( 3,941 2,765 Licenses 10.0 895 ( 127 768 TOTAL $ 11,591 $ ( 4,754 $ 6,837 December 31, 2018 Trademark 17.3 $ 3,470 $ ( 288 ) $ 3,182 Non-compete agreement 2.0 115 ( 112 ) 3 Customer relationships 4.0 4,612 ( 2,334 ) 2,278 Licenses 10.0 895 ( 37 858 TOTAL $ 9,092 $ ( 2,771 ) $ 6,321

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2019
Income Taxes [Abstract]
Schedule of components of income (loss) before income taxes	Year ended December 31, 2019 2018 (in thousands) Domestic $ 23,894 $ 15,246 Foreign ( 17,915 ( 6,222 ) INCOME BEFORE INCOME TAXES $ 5,979 $ 9,024
Schedule of components of deferred income tax assets	December 31, 2019 2018 (in thousands) Deferred income tax assets: Bad debt reserve $ 701 $ 543 Accrued expenses 1,093 2,629 State taxes 80 91 Charitable contributions 173 189 Net operating loss 49,055 46,632 ROU assets 521 — Lease liability ( 474 — Stock options and restricted stock 520 519 Depreciation 5,241 6,209 Total deferred income tax assets 56,910 56,812 Valuation allowance ( 44,756 ( 41,187 ) DEFERRED INCOME TAX ASSETS, NET $ 12,154 $ 15,625
Schedule of components of income taxes provision	Year ended December 31, 2019 2018 (in thousands) Current: Federal $ — $ — State and local ( 1,129 ( 1,107 ) Foreign — — ( 1,129 ( 1,107 ) Deferred: Federal ( 2,808 13,609 State and local ( 663 ( 126 ) Foreign — — ( 3,471 ) 13,483 (PROVISION FOR) BENEFIT FROM INCOME TAXES $ ( 4,600 $ 12,376
Schedule of income tax reconciliation	Year ended December 31, 2019 2018 (in thousands) U.S. federal income tax benefit at statutory rate $ ( 1,256 $ ( 1,895 Valuation allowance ( 3,569 15,113 Nondeductible expense 175 ( 12 Foreign tax rate differential 13 1,493 Other 567 ( 1,174 State and local income tax, net of federal benefit ( 530 ( 1,149 ) (PROVISION FOR) BENEFIT FROM INCOME TAXES $ ( 4,600 $ 12,376
Schedule of change in the valuation allowance for deferred income taxes	Balance at beginning of period Additions charged to costs and expenses Deductions Balance at end of period (in thousands) Year ended December 31, 2019 Reserves for valuation allowances deducted from deferred income taxes, net $ 41,187 $ 3,569 $ — $ 44,756 Year ended December 31, 2018 Reserves for valuation allowances deducted from deferred income taxes, net $ 48,337 $ 7,963 $ ( 15,113 ) $ 41,187
Schedule of change in the balance of unrecognized income tax benefits	Year ended December 31, 2019 2018 (in thousands) Balance at beginning of period $ 433 $ 558 Additions based on tax positions related to the current period 84 98 Lapses of statutes of limitations ( 134 ( 223 ) Balance at end of period $ 383 $ 433

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2019
Stock-Based Compensation [Abstract]
Summary of status of Company's grants of restricted shares of Class B common stock	Number of Non-vested Shares Weighted- Average Grant Date Fair Value (in thousands) Non-vested shares at December 31, 2018 367 $ 5.46 Granted 199 6.50 Vested ( 158 5.61 Forfeited ( 163 6.38 NON-VESTED SHARES AT DECEMBER 31, 2019 245 $ 5.59
Equity compensation plans, valuation assumptions	December 31, 2019 2018 Average risk-free interest rate 2.5 % 2.6 % Expected dividend yield 3.7 6.9 Expected volatility 52.7 55.8 Expected term 4 5.0 yea Weighted-average grant date fair value of options granted $ 2.6 $ 1.3
Summary of stock option activity	Number of Options (in thousands) Weighted- Average Exercise Price Weighted- Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (in thousands) Outstanding at December 31, 2018 635 $ 5.83 3.5 $ 434 Granted 126 8.05 Exercised ( 205 6.85 Cancelled/Forfeited — — OUTSTANDING AT DECEMBER 31, 2019 556 $ 5.96 3.1 $ 1,065 EXERCISABLE AT DECEMBER 31, 2019 468 $ 6.69 2.2 $ 544

Variable Interest Entity (Table

Variable Interest Entity (Tables)	12 Months Ended
	Dec. 31, 2019
Variable Interest Entity [Abstract]
Schedule of net income (loss) related to CCE and aggregate net funding	Year ended December 31, 2019 2018 (in thousands) Net loss $ ( 490 $ ( 1,197 Aggregate provided by repaid to the Company, net $ ( 649 $ ( 809
Summarized consolidated balance sheet amounts related to CCE	December 31, 2019 2018 (in thousands) ASSETS Cash and cash equivalents $ 250 $ 70 Trade accounts receivable 586 623 Prepaid expenses and other current assets 381 411 Other assets 359 359 TOTAL ASSETS $ 1,576 $ 1,463 LIABILITIES AND NONCONTROLLING INTERESTS Current liabilities $ 467 $ 513 Due to IDT Energy 2,598 1,949 Noncontrolling interests from CCE ( 1,489 ( 999 TOTAL LIABILITIES AND NONCONTROLLING INTERESTS $ 1,576 $ 1,463

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Tables)	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Summary of accumulated balances for other comprehensive income	(in thousands) Foreign currency translation Balance at December 31, 2017 $ 3,045 Other comprehensive income attributable to Genie ( 454 Balance at December 31, 2018 2,591 Other comprehensive loss attributable to Genie ( 72 Balance at December 31, 2019 $ 2,519

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2019
Commitments and Contingencies [Abstract]
Schedule of purchase commitments outstanding	2020 $ 78,890 2021 39,182 2022 15,270 2023 4,281 2024 640 Total payments $ 138,263

Related Party Transactions (Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2019
Related Party Transactions [Abstract]
Summary of related party transactions	Year ended December 31, 2019 2018 (in thousands) Amount IDT charged the Company $ 1,142 $ 1,340 Amount the Company charged IDT $ 160 $ 355 Amount Rafael charged the Company $ 222 $ 161
Schedule of receivables and payables	December 31, 2019 2018 (in thousands) Due to IDT $ 434 $ 267 Due from IDT $ 45 $ 33 Due to Rafael $ — $ —

Business Segment and Geograph_2

Business Segment and Geographic Information (Tables)	12 Months Ended
	Dec. 31, 2019
Business Segment and Geographic Information [Abstract]
Schedule of operating results for the business segments	GRE GRE International GES GOGAS Corporate Total (in thousands) Year ended December 31, 2019 Revenues $ 286,611 $ 16,595 $ 12,085 $ — $ — $ 315,291 Income (loss) from operations 27,176 ( 8,133 ) ( 2,895 ) ( 1,028 ) ( 5,295 ) 9,825 Depreciation and amortization 703 1,819 1,047 57 1 3,627 Impairment of goodwill — — ( 400 ) — — ( 400 ) Equity in the net loss of equity method investees — 4,440 — 291 99 4,830 Year ended December 31, 2018 Revenues $ 274,443 $ — $ 5,696 $ 170 $ — $ 280,309 Income (loss) from operations 28,988 ( 1,201 ) ( 982 ) ( 6,532 ) ( 8,295 ) 11,978 Depreciation and amortization 1,538 1 178 345 — 2,062 Exploration — — — 244 — 244 Write-off of capitalized exploration costs — — — 2,742 — 2,742 Equity in the net loss of Shoreditch — 2,990 — 440 — 3,430
Schedule of total assets for the business segments	(in thousands) GRE GRE International GES GOGAS Corporate Total (in thousands) Total assets: December 31, 2019 $ 105,937 $ 11,468 $ 19,383 $ 10,873 $ 8,583 $ 156,244 December 31, 2018 113,918 3,654 11,519 15,375 2,398 146,864 Investments in equity method investees: December 31, 2019 $ — $ — $ — $ 275 $ 400 $ 675 December 31, 2018 — 1,679 — 529 — 2,208
Schedule of revenues from customers located outside of the united states	United States Foreign Countries Total (in thousands) Year ended December 31, 2019 $ 16,595 $ — $ 16,595 Year ended December 31, 2018 — 170 170
Schedule of net long-lived assets and total assets held outside of the United States	United States Foreign Countries Total (in thousands) December 31, 2019 Long-lived assets, net $ 17,498 $ 4,440 $ 21,938 Total assets 143,738 12,506 156,244 December 31, 2018 Long-lived assets, net $ 20,529 $ 1,409 $ 21,938 Total assets 141,336 5,528 146,864

Description of Business and S_4

Description of Business and Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Fixed rate	$ 112,524	$ 80,164
Variable rate	190,493	194,279
Other	12,274	5,866
Total	315,291	280,309
Electricity [Member]
Disaggregation of Revenue [Line Items]
Fixed rate	108,523	77,383
Variable rate	154,568	150,500
Other
Total	263,091	227,883
Natural Gas [Member]
Disaggregation of Revenue [Line Items]
Fixed rate	4,001	2,781
Variable rate	35,925	43,779
Other
Total	39,926	46,560
Others [Member]
Disaggregation of Revenue [Line Items]
Fixed rate
Variable rate
Other	12,274	5,866
Total	$ 12,274	$ 5,866

Description of Business and S_5

Description of Business and Summary of Significant Accounting Policies (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Non-Commercial Channel	$ 266,490	$ 260,402
Commercial Channel	36,527	14,041
Other	12,274	5,866
Total	315,291	280,309
Electricity [Member]
Disaggregation of Revenue [Line Items]
Non-Commercial Channel	232,511	217,019
Commercial Channel	30,580	10,864
Other
Total	263,091	227,883
Natural Gas [Member]
Disaggregation of Revenue [Line Items]
Non-Commercial Channel	33,979	43,383
Commercial Channel	5,947	3,177
Other
Total	39,926	46,560
Others [Member]
Disaggregation of Revenue [Line Items]
Non-Commercial Channel
Commercial Channel
Other	12,274	5,866
Total	$ 12,274	$ 5,866

Description of Business and S_6

Description of Business and Summary of Significant Accounting Policies (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Description of Business and Summary of Significant Accounting Policies [Abstract]
Contract liability, beginning	$ 1,137	$ 205
Recognition of revenue included in the beginning of year contract liability	(635)	(205)
Additions during the period, net of revenue recognized during the period	12,924	1,137
Contract liability, end	$ 13,426	$ 1,137

Description of Business and S_7

Description of Business and Summary of Significant Accounting Policies (Details 3) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Description of Business and Summary of Significant Accounting Policies [Abstract]
Cash and cash equivalents	$ 31,242	$ 41,601
Restricted cash-short-term included in other current assets	6,792	1,653
Restricted cash-long-term	520	943
Total cash, cash equivalents, and restricted cash	$ 38,554	$ 44,197	$ 31,927

Description of Business and S_8

Description of Business and Summary of Significant Accounting Policies (Details 4) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Description of Business and Summary of Significant Accounting Policies [Abstract]
Natural gas	$ 1,052	$ 1,116
Renewable credits	14,940	8,654
Finished goods	424	40
Raw materials	216	83
Total solar panels inventory	640	123
Totals	$ 16,632	$ 9,893

Description of Business and S_9

Description of Business and Summary of Significant Accounting Policies (Details 5)	12 Months Ended
	Dec. 31, 2019
Building and improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	27 years
Building and improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	4 years
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	9 years
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	2 years
Computer Software And Development [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Computer Software And Development [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	2 years
Computers and computer hardware [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Computers and computer hardware [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	2 years
Office equipment and other [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	7 years
Office equipment and other [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	5 years

Description of Business and _10

Description of Business and Summary of Significant Accounting Policies (Details 6) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Description of Business and Summary of Significant Accounting Policies [Abstract]
Basic weighted-average number of shares	26,607	25,154
Effect of dilutive securities
Stock options and warrants	718	130
Non-vested restricted Class B common stock	$ 139	$ 411
Diluted weighted-average number of shares	27,464	25,695

Description of Business and _11

Description of Business and Summary of Significant Accounting Policies (Details 7) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Stock options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from the calculation of diluted earnings per share	126	341

Description of Business and _12

Description of Business and Summary of Significant Accounting Policies (Details 8)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Con Edison [Member] | Consolidated revenues [Member]
Concentration Risk [Line Items]
Concentration risk percentage		11.00%

Description of Business and _13

Description of Business and Summary of Significant Accounting Policies (Details 9) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance at beginning of period	$ 2,003	$ 1,099
Additions charged (reversals credited) to expense	658	904
Additions (deductions)	(30)
Balance at end of period	$ 2,631	$ 2,003

Description of Business and _14

Description of Business and Summary of Significant Accounting Policies (Details Textual) $ in Thousands	Nov. 30, 2019	Sep. 30, 2019	Mar. 31, 2019	Dec. 31, 2018USD ($)Segment	Sep. 30, 2018	Mar. 31, 2018	Dec. 31, 2019USD ($)Segment	Dec. 31, 2018USD ($)	Apr. 12, 2019	Jan. 31, 2019USD ($)	Oct. 25, 2018
Description of Business and Summary of Significant Accounting Policies (Textual)
Company's investment, ownership percentage in subsidiary							100.00%
Amount of advertising expense included in selling general and administrative expense							$ 4,100	$ 2,400
Description of percentage of consolidated revenue from utility companies							The percentage of consolidated revenues from customers by utility company that equal or exceed 10% of consolidated revenues in the period (no other single utility company accounted for more than 10% of consolidated revenues in these periods.
Description of percentage of consolidated gross trade accounts receivable by utility companies							The percentage of consolidated revenues from customers by utility company that equal or exceed 10% of consolidated revenues in the period (no other single utility company accounted for more than 10% of consolidated revenues in these periods.
Purchase method, description							The fair value of patents and trademarks, non-compete agreements and customer relationships acquired in a business combination accounted for under the purchase method are amortized over their estimated useful lives as follows: patents and trademarks are amortized on a straight-line basis over 5 to 20-year period; non-compete agreements are amortized on a straight-line basis over 2 to 3-year term; and customer relationships are amortized ratably over the 2 or 9 year period.
Percentage of electricity revenue generated in given period		31.80%			29.50%
Percentage of gas revenue generated in given period			46.90%			50.30%
Percentage of outstanding membership interests											60.00%
Number of reportable segments | Segment							3
Distribution and handling costs							$ 300	100
Restricted cash, description							The Company adopted the amendments in this ASU on January 1, 2018. For the year ended December 31, 2017, $0.1 million and $10.0 million of changes in restricted cash balances that was previously presented within operating and financing activities, respectively, in the consolidated statement of cash flows has been excluded from the cash flows used in operating and financing activities and the effect of exchange rate changes increased by $0.6 million due to the retrospective adoption of ASU 2016-18. Restricted cash of $2.0 million and $11.9 million at December 31, 2017 and 2016, respectively, have been included with the cash and cash equivalents when reconciling the beginning of year and end of year total amounts on the consolidated statement of cash flows for the year ended December 31, 2017.
Percentage of divestiture interest					37.50%				60.00%
Impairment of goodwill							$ 400
Current lease liabilities										$ 400
Non current lease liabilities										2,000
Operating lease right of use Asset										2,400
Accumulated deficit				$ (53,939)			$ (59,671)	(53,939)		$ 300
Atid Drilling Ltd. [Member]
Description of Business and Summary of Significant Accounting Policies (Textual)
Percentage of divestiture interest							37.50%
Customer Relationships [Member] | Maximum [Member]
Description of Business and Summary of Significant Accounting Policies (Textual)
Amortization period							9 years
Customer Relationships [Member] | Minimum [Member]
Description of Business and Summary of Significant Accounting Policies (Textual)
Amortization period							2 years
Patents and trademarks [Member]
Description of Business and Summary of Significant Accounting Policies (Textual)
Amortization period							20 years
Non-compete agreement [Member] | Maximum [Member]
Description of Business and Summary of Significant Accounting Policies (Textual)
Amortization period							3 years
Non-compete agreement [Member] | Minimum [Member]
Description of Business and Summary of Significant Accounting Policies (Textual)
Amortization period							2 years
Genie Retail Energy [Member]
Description of Business and Summary of Significant Accounting Policies (Textual)
Company's investment, ownership percentage in subsidiary							100.00%
Genie Retail Energy One [Member]
Description of Business and Summary of Significant Accounting Policies (Textual)
Company's investment, ownership percentage in subsidiary							100.00%
GRE International [Member]
Description of Business and Summary of Significant Accounting Policies (Textual)
Company's investment, ownership percentage in subsidiary							73.00%
Lumo [Member]
Description of Business and Summary of Significant Accounting Policies (Textual)
Company's investment, ownership percentage in subsidiary	89.00%						80.00%
Total capitalized customer acquisition costs							$ 800
Capitalized and amortized Period							eighteen months
Customer acquisition costs				$ 100			$ 600	$ 100
Afek Oil and Gas, Ltd. [Member]
Description of Business and Summary of Significant Accounting Policies (Textual)
Company's investment, ownership percentage in subsidiary							86.10%
Number of reportable segments | Segment				1
Genie Energy International Corporation [Member]
Description of Business and Summary of Significant Accounting Policies (Textual)
Company's investment, ownership percentage in subsidiary							99.30%
GOGAS [Member]
Description of Business and Summary of Significant Accounting Policies (Textual)
Number of reportable segments | Segment				1
GES [Member]
Description of Business and Summary of Significant Accounting Policies (Textual)
Company's investment, ownership percentage in subsidiary							97.00%

Acquisitions and Divestiture (D

Acquisitions and Divestiture (Details) - USD ($) $ in Thousands	Jan. 02, 2019	Oct. 25, 2018	Dec. 31, 2019	Dec. 31, 2018
Prism panels [Member]
Business Acquisition [Line Items]
Cash		$ 931
Trade accounts receivable		11
Other current assets		260
Trademark		320
Customer relationships		1,600
Goodwill		804
Accounts payable accrued expenses		(1,723)
Other liabilities			$ (86)
Noncontrolling interest		(2,667)
Inventory		1,142
Property and equipment		3,564
Patents		370
Notes payable — current portion		(63)
Other current liabilities		(1,164)
Notes payable — net of current portion		(885)
Net assets		2,500
Supplemental information:
Cash paid to Sellers		2,500
Cash contributed to Lumo		899
Total consideration		4,000
Notes receivable from Prism, including accrued interest, converted to Prism's equity		1,351
Cash payment to previous equity holders of Prism		250
Notes payable issued to Prism		$ 1,500
Lumo Energia [Member]
Business Acquisition [Line Items]
Cash	$ 1,539
Trade accounts receivable	2,520
Other current assets	411
Trademark	294
Non-compete agreement	34
Customer relationships	1,924
Goodwill	1,744
Other assets	95
Accounts payable accrued expenses	(2,403)
Short-term debts	(2,260)
Other liabilities	(97)
Noncontrolling interest	(410)
Net assets	3,391
Supplemental information:
Cash paid to Sellers	1,869
Cash contributed to Lumo	1,522
Total consideration	$ 3,391

Acquisitions and Divestiture _2

Acquisitions and Divestiture (Details 1) - Prism panels [Member] - USD ($) $ in Thousands	Dec. 31, 2018	Oct. 25, 2018
Business Acquisition [Line Items]
5.95% note payable, due in monthly payments of $7,184 including interest, through November 2019 when the balloon payment is due, collateralized by Prism's assets	$ 893	$ 918
20.00% demand note payable, uncollaterlized	30	30
Total maturities	923	948
Less: Current maturities	923	63
Noncurrent portion		$ 885

Acquisitions and Divestiture _3

Acquisitions and Divestiture (Details 2) - Prism panels [Member] $ in Thousands	Dec. 31, 2019USD ($)
Business Acquisition [Line Items]
4.75% notes payable	$ 863
Less: Current portion	86
Total	$ 777

Acquisitions and Divestiture _4

Acquisitions and Divestiture (Details 3) $ in Thousands	Dec. 31, 2019USD ($)
Acquisitions [Abstract]
2020	$ 86
2021	86
2022	86
2023	86
2024	86
Thereafter	433
Total	$ 863

Acquisitions and Divestiture _5

Acquisitions and Divestiture (Details 4) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Net income (loss) attributable to Genie Energy Ltd. common stockholders	$ 1,379	$ 21,400
Earnings per share attributed to Genie Energy Ltd. common stockholder
Basic	$ 0.10	$ 0.85
Diluted	$ 0.10	$ 0.83
Acquisition Of Mirabito Natural Gas [Member]
Business Acquisition [Line Items]
Total revenues	$ 293,694	$ 281,847
Net income (loss)	217,746	21,524
Net income (loss) attributable to Genie Energy Ltd. common stockholders	$ 20,634	$ 22,511
Earnings per share attributed to Genie Energy Ltd. common stockholder
Basic	$ 0.81	$ 0.89
Diluted	$ 0.80	$ 0.88

Acquisitions and Divestiture _6

Acquisitions and Divestiture (Details Textual) - USD ($)

Nov. 30, 2019

Jan. 02, 2019

Jan. 02, 2019

Aug. 10, 2017

Oct. 25, 2018

Dec. 31, 2019

Mar. 31, 2019

Oct. 31, 2018

Dec. 31, 2019

Dec. 31, 2018

Dec. 11, 2019

Apr. 12, 2019

Sep. 30, 2018

Acquisitions (Textual)

Bridge Loan

$ 1,400,000

Fixed annual interest rate

4.75%

Percentage of acquire controlling interest

9.00%

60.00%

Vesting interest rate

12.50%

Percentage of divestiture interest

60.00%

37.50%

Due payment of notes payable

$ 100,000

Demand note payable interest

5.95%

Vesting period

10 years

Noncontrolling interest

20.00%

20.00%

Revenue for Lumo

$ 315,291,000

$ 280,309,000

Purchase price to intangibles

$ 300,000

Outstanding balance of credit facility

$ 800,000

Letter of Credit [Member]

Acquisitions (Textual)

Working capital

$ 400,000

Howard Jonas [Member]

Acquisitions (Textual)

Percentage of divestiture interest

37.50%

37.50%

Chief Financial Officer [Member]

Acquisitions (Textual)

Percentage of divestiture interest

25.00%

25.00%

Atid Drilling Ltd. [Member]

Acquisitions (Textual)

Assets held for sale

2,700,000

Percentage of divestiture interest

37.50%

37.50%

Equity of net book value

1,000,000

Lumo Energia, Ojy [Member]

Acquisitions (Textual)

Aggregate cash payment

$ 1,869,000

Additional amount to be paid

$ 200,000

Total consideration

$ 3,391,000

Purchase price in noncontrolling interest

$ 500

$ 15,200,000

Acquisition of purchase agreement

the Company completed the purchase of an 80.0% controlling interest in Lumo Energia Oyj ("Lumo"), a Finnish public limited company. The Company paid the sellers a total of €1.6 million (equivalent to $1.9 million at closing). The Company contributed €1.3 million (equivalent to $1.5 million at closing) as a capital loan to fund Lumo's working capital requirements. The Company also provided Lumo with a secured loan for €2.0 million (equivalent to $2.3 million at closing) to pay off and replace Lumo's remaining debt. The secured loan matures in 4 years and bears interest at annual rate of 4.0%, payable monthly. The Company also issued 176,104 shares of its class B common stock to certain of the sellers which are subject to restrictions (the "Lumo Restricted Shares"). The Lumo Restricted Shares are subject to vesting conditions related to employment and services to be provided by the recipients of up to two years following the Lumo Closing Date.

Lumo Energia, Ojy [Member] | Trade Names [Member]

Acquisitions (Textual)

Weighted average useful life

5 years

Customer Relationships [Member] | Lumo Energia, Ojy [Member]

Acquisitions (Textual)

Weighted average useful life

2 years

Non-compete agreement [Member] | Lumo Energia, Ojy [Member]

Acquisitions (Textual)

Weighted average useful life

3 years

Management Agreement [Member]

Acquisitions (Textual)

Management fee termination date

Aug. 31, 2021

Prism [Member]

Acquisitions (Textual)

Aggregate cash payment

$ 1,100,000

Additional amount to be paid

1,500,000

Bridge Loan

$ 1,300,000

Fixed annual interest rate

12.00%

Percentage of acquire controlling interest

89.00%

Total consideration

$ 4,000

Revenues

$ 10,100,000

3,300

Percentage of divestiture interest

100.00%

Note payable interest rate

5.95%

5.95%

Due payment of notes payable

$ 7,184,000

Demand note payable interest

20.00%

20.00%

Outstanding balance of credit facility

$ 800,000

$ 800,000

Prism [Member] | Property, Plant and Equipment [Member]

Acquisitions (Textual)

Weighted average useful life

19 years

Prism [Member] | Trade Names [Member]

Acquisitions (Textual)

Weighted average useful life

10 years

Prism [Member] | Customer Relationships [Member]

Acquisitions (Textual)

Weighted average useful life

3 years

Prism [Member] | Patents [Member]

Acquisitions (Textual)

Weighted average useful life

10 years

Mirabito Natural Gas [Member]

Acquisitions (Textual)

Revenues

$ 293,694,000

$ 281,847,000

Fair Value Measurements (Detail

Fair Value Measurements (Details) - Recurring [Member] - USD ($) $ in Thousands		Dec. 31, 2019	Dec. 31, 2018
Assets:
Derivative contracts		$ 327	$ 1,574
Liabilities:
Derivative contracts		1,979	2,348
Level 1 [Member]
Assets:
Derivative contracts	[1]	5	1,107
Liabilities:
Derivative contracts	[1]	1,569	2,100
Level 2 [Member]
Assets:
Derivative contracts	[2]	322	467
Liabilities:
Derivative contracts	[2]	410	248
Level 3 [Member]
Assets:
Derivative contracts	[3]
Liabilities:
Derivative contracts	[3]
[1]	quoted prices in active markets for identical assets or liabilities
[2]	observable inputs other than quoted prices in active markets for identical assets and liabilities
[3]	no observable pricing inputs in the market

Fair Value Measurements (Deta_2

Fair Value Measurements (Details 1) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of goodwill		$ 400
Impairment of assets		400	2,742
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of goodwill	[1]
Impairment of assets	[1]
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of goodwill	[2]
Impairment of assets	[2]
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of goodwill	[3]	$ 400
Impairment of assets	[3]		$ 2,742
[1]	quoted prices in active markets for identical assets or liabilities
[2]	observable inputs other than quoted prices in active markets for identical assets and liabilities
[3]	no observable pricing inputs in the market

Derivative Instruments (Details

Derivative Instruments (Details)	12 Months Ended
	Dec. 31, 2019
Electricity (In MWH) [Member] | First quarter 2020 [Member]
Derivative [Line Items]
Volume	186,005
Electricity (In MWH) [Member] | Second quarter 2020 [Member]
Derivative [Line Items]
Volume	95,000
Electricity (In MWH) [Member] | Third quarter 2020 [Member]
Derivative [Line Items]
Volume	85,000
Electricity (In MWH) [Member] | Fourth quarter 2020 [Member]
Derivative [Line Items]
Volume	44,680
Electricity (In MWH) [Member] | First quarter 2021 [Member]
Derivative [Line Items]
Volume
Electricity (In MWH) [Member] | Second quarter 2021 [Member]
Derivative [Line Items]
Volume
Electricity (In MWH) [Member] | Third quarter 2021 [Member]
Derivative [Line Items]
Volume
Electricity (In MWH) [Member] | Fourth quarter 2021 [Member]
Derivative [Line Items]
Volume
Electricity (In MWH) [Member] | First quarter 2022 [Member]
Derivative [Line Items]
Volume
Electricity (In MWH) [Member] | Second quarter 2022 [Member]
Derivative [Line Items]
Volume
Electricity (In MWH) [Member] | Third quarter 2022 [Member]
Derivative [Line Items]
Volume
Electricity (In MWH) [Member] | Fourth quarter 2022 [Member]
Derivative [Line Items]
Volume
Natural gas (in Dth) [Member] | First quarter 2020 [Member]
Derivative [Line Items]
Volume	359,710
Natural gas (in Dth) [Member] | Second quarter 2020 [Member]
Derivative [Line Items]
Volume	138,920
Natural gas (in Dth) [Member] | Third quarter 2020 [Member]
Derivative [Line Items]
Volume	105,702
Natural gas (in Dth) [Member] | Fourth quarter 2020 [Member]
Derivative [Line Items]
Volume	83,051
Natural gas (in Dth) [Member] | First quarter 2021 [Member]
Derivative [Line Items]
Volume	79,500
Natural gas (in Dth) [Member] | Second quarter 2021 [Member]
Derivative [Line Items]
Volume	60,400
Natural gas (in Dth) [Member] | Third quarter 2021 [Member]
Derivative [Line Items]
Volume	45,700
Natural gas (in Dth) [Member] | Fourth quarter 2021 [Member]
Derivative [Line Items]
Volume	38,450
Natural gas (in Dth) [Member] | First quarter 2022 [Member]
Derivative [Line Items]
Volume	28,600
Natural gas (in Dth) [Member] | Second quarter 2022 [Member]
Derivative [Line Items]
Volume	16,450
Natural gas (in Dth) [Member] | Third quarter 2022 [Member]
Derivative [Line Items]
Volume	2,850
Natural gas (in Dth) [Member] | Fourth quarter 2022 [Member]
Derivative [Line Items]
Volume	1,450

Derivative Instruments (Detai_2

Derivative Instruments (Details 1) - USD ($) $ in Thousands		Dec. 31, 2019	Dec. 31, 2018
Schedule of fair value of outstanding derivative instruments recorded as assets and liability
Asset Derivatives, not designated or not qualifying as hedging instruments		$ 327	$ 1,574
Liability Derivatives, not designated or not qualifying as hedging instruments		1,979	2,348
Energy contracts and options [Member] | Other current assets [Member]
Schedule of fair value of outstanding derivative instruments recorded as assets and liability
Asset Derivatives, not designated or not qualifying as hedging instruments	[1]	324	1,116
Energy contracts and options [Member] | Other Assets [Member]
Schedule of fair value of outstanding derivative instruments recorded as assets and liability
Asset Derivatives, not designated or not qualifying as hedging instruments		3	458
Energy contracts and options [Member] | Other current liabilities [Member]
Schedule of fair value of outstanding derivative instruments recorded as assets and liability
Liability Derivatives, not designated or not qualifying as hedging instruments	[1]	1,909	2,028
Energy contracts and options [Member] | Other Liabilities [Member]
Schedule of fair value of outstanding derivative instruments recorded as assets and liability
Liability Derivatives, not designated or not qualifying as hedging instruments		$ 70	$ 320
[1]	The Company classifies derivative assets and liabilities as current based on the cash flows expected to be incurred within the following 12 months.

Derivative Instruments (Detai_3

Derivative Instruments (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Energy contracts and options [Member] | Cost of revenues [Member]
Effects of derivative instruments on the consolidated statements of operations
Amount of Loss Recognized on Derivatives	$ 24,810	$ 2,013

Leases (Details)

Leases (Details) $ in Thousands	Dec. 31, 2019USD ($)
Leases [Abstract]
ROU assets	$ 2,357
Current portion of operating lease liabilities	479
Noncurrent portion of operating lease liabilities	1,917
Total operating lease liabilities	$ 2,396

Leases (Details 1)

Leases (Details 1) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating activities	$ 883
ROU assets obtained in the exchange for lease liabilities
Operating leases	$ 301

Leases (Details 2)

Leases (Details 2) $ in Thousands	Dec. 31, 2019USD ($)
2020	$ 632
2021	551
2022	242
2023	221
2024	225
Thereafter	1,305
Total future lease payments	3,176
Less imputed interest	780
Total operating lease liabilities	2,396
Operating Leases [Member]
2019	527
2020	428
2021	377
2022	217
2023	221
Thereafter	1,530
Total operating lease liabilities	$ 3,300

Leases (Details Textual)

Leases (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease rent	$ 0.9	$ 0.7
Weighted average remaining lease term	7 years 3 months 18 days
Weighted average discounts rate	6.50%

Investments In Equity Method _3

Investments In Equity Method Investees (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Schedule of Equity Method Investments [Line Items]
Balance, beginning of period	$ 2,208
Capital contributions	3,235	$ 1,306
Income (Loss) from Equity Method Investments	(4,830)	(3,430)
Balance, end of period	675	2,208
Atid Drilling Ltd. [Member]
Schedule of Equity Method Investments [Line Items]
Balance, beginning of period	529
Capital contributions		1,000
Cumulative foreign currency translation adjustment	36	(31)
Income (Loss) from Equity Method Investments	291	440
Balance, end of period	274	529
Shoreditch [Member]
Schedule of Equity Method Investments [Line Items]
Balance, beginning of period	1,679	3,450
Capital contributions	2,735	1,306
Cumulative foreign currency translation adjustment	26	(87)
Income (Loss) from Equity Method Investments	4,440	2,990
Balance, end of period		$ 1,679

Investments In Equity Method _4

Investments In Equity Method Investees (Details Textual) $ in Thousands, ₪ in Millions	Aug. 31, 2018USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 05, 2019USD ($)	Aug. 31, 2019ILS (₪)	Aug. 31, 2019USD ($)	Aug. 12, 2019ILS (₪)	Aug. 12, 2019USD ($)
Business Acquisition [Line Items]
Investment in joint venture		$ 3,235	$ 1,306
Debt Instrument, Increase, Accrued Interest	$ 100
Notes Receivable, Related Parties		200
Service charge		600	700
Issued letters of credit		800		$ 5,000
Cost paid		0
Atid Drilling Ltd. [Member]
Business Acquisition [Line Items]
Investment in joint venture			1,000
Percentage of ownership		37.50%
New Atid [Member]
Business Acquisition [Line Items]
Agreed to loan amount							₪ 5.1	$ 1,500
Commitment to loan amount							₪ 1.9	$ 500
Additional Loan Amount					₪ 0.8	$ 200
Shoreditch [Member]
Business Acquisition [Line Items]
Investment in joint venture		$ 2,735	1,306
Percentage of ownership		73.00%
GEUK [Member]
Business Acquisition [Line Items]
Gain on consolidation of AMSO, LLC		$ 2,700	1,300
Investment in joint venture		8,000
EGC [Member]
Business Acquisition [Line Items]
Related party loan			$ 200
Annual interest rate			2.00%
Debt Instrument, Increase, Accrued Interest		$ 200

Property and Equipment (Details

Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 6,952	$ 6,660
Less: accumulated depreciation	(3,345)	(2,359)
Property and equipment, net	3,607	4,301
Land [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	230	230
Building and improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,349	2,291
Manufacturing equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,434	1,403
Computer software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,549	2,229
Computers and computer hardware [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	244	237
Office equipment and other [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 146	$ 270

Property and Equipment (Detai_2

Property and Equipment (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Property and equipment [Member]
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 1.1	$ 0.8

Goodwill and Other Intangible_2

Goodwill and Other Intangibles (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Oct. 01, 2019	Dec. 31, 2019	Dec. 31, 2018
Beginning Balance		$ 11,082	$ 9,998
Acquisition of Mirabito and Prism (see Note 2)		1,744	1,084
Prism of acquisition purchase price allocation adjustment (see Note 2)		(280)
Impairment of Prism goodwill	$ (400)	(400)
Cumulative translation adjustment		(11)
Ending Balance		12,135	11,082
GRE [Member]
Beginning Balance		9,998	9,998
Acquisition of Mirabito and Prism (see Note 2)
Prism of acquisition purchase price allocation adjustment (see Note 2)
Impairment of Prism goodwill
Cumulative translation adjustment
Ending Balance		9,998	9,998
GRE International [Member]
Beginning Balance
Acquisition of Mirabito and Prism (see Note 2)		1,744
Prism of acquisition purchase price allocation adjustment (see Note 2)
Impairment of Prism goodwill
Cumulative translation adjustment		(11)
Ending Balance		1,733
GES [Member]
Beginning Balance		1,084
Acquisition of Mirabito and Prism (see Note 2)			1,084
Prism of acquisition purchase price allocation adjustment (see Note 2)		(280)
Impairment of Prism goodwill		(400)
Cumulative translation adjustment
Ending Balance		$ 404	$ 1,084

Goodwill and Other Intangible_3

Goodwill and Other Intangibles (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 11,591	$ 9,092
Accumulated Amortization	(4,754)	(2,771)
Net Balance	$ 6,837	$ 6,321
Patents and trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period	17 years 1 month 6 days	17 years 3 months 18 days
Gross Carrying Amount	$ 3,842	$ 3,470
Accumulated Amortization	(560)	(288)
Net Balance	$ 3,282	$ 3,182
Non-compete agreement [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period	1 year 7 months 6 days	2 years
Gross Carrying Amount	$ 148	$ 115
Accumulated Amortization	(126)	(112)
Net Balance	$ 22	$ 3
Customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period	3 years 10 months 24 days	4 years
Gross Carrying Amount	$ 6,706	$ 4,612
Accumulated Amortization	(3,941)	(2,334)
Net Balance	$ 2,765	$ 2,278
Licenses [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period	10 years	10 years
Gross Carrying Amount	$ 895	$ 895
Accumulated Amortization	(127)	(37)
Net Balance	$ 768	$ 858

Goodwill and Other Intangible_4

Goodwill and Other Intangibles (Details Textual) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Oct. 01, 2019	Dec. 31, 2019	Dec. 31, 2018
Goodwill [Line Items]
Amortization expense of intangible assets		$ 2,500	$ 1,300
Amortization expense of finite lives intangible assets, 2020		2,000
Amortization expense of finite lives intangible assets, 2021		1,000
Amortization expense of finite lives intangible assets, 2022		500
Amortization expense of finite lives intangible assets, 2023		500
Amortization expense of finite lives intangible assets, 2024		400
Amortization expense of finite lives intangible assets, 2025		2,400
Goodwill impairment charge	$ 400	$ 400

Debt (Details)

Debt (Details) ¥ in Millions	1 Months Ended	12 Months Ended		13 Months Ended
	Dec. 05, 2019USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Nov. 28, 2020	Nov. 28, 2019JPY (¥)	Nov. 28, 2019USD ($)	Apr. 04, 2017USD ($)
Revolving Lines of Credit (Textual)
Revolving loan facility			$ 2,516,000
Settlement of obligations		2,260,000
Gain from revolving loan facility			164,000
Effective interest rate		3.00%
Line of Credit, Current		$ 116,000	$ 923,000
Maturity date				May 13, 2020
Line of credit facility, amount outstanding	$ 5,000,000	800,000
Amount outstanding added to lines of credit current		$ 900,000
Short-term credit facility					¥ 100	$ 900,000
Short-term prime rate					0.25%	0.25%
JPMorgan [Member]
Revolving Lines of Credit (Textual)
Maximum principal amount on revolving line of credit	5,100
Description of line of credit collateral		Equal to the greater of $500 or 1.0% of the original maximum available amount of the letter of credit.
Maximum amount of collateral under condition one	$ 500,000
Effective interest rate	1.00%
Quarterly unused commitment fee	0.10%
Cash collateral for line of credit		$ 1,800,000
Cash collateral released		$ 5,200,000
Line of credit facility, amount outstanding					¥ 100	$ 900,000
Line of Credit Facility, Interest Rate Description		Lesser of (a) the LIBOR rate multiplied by the statutory reserve rate established by the Board of Governors of the Federal Reserve System plus 1.0% per annum, or (b) the maximum rate per annum permitted by whichever of applicable federal or Texas laws permit the higher interest rate.
Vantage Commodities Financial Services II, LLC [Member] | GRE [Member]
Revolving Lines of Credit (Textual)
Effective interest rate		6.41%	7.24%
Vantage Commodities Financial Services II, LLC [Member] | GRE Credit Agreement [Member]
Revolving Lines of Credit (Textual)
Revolving loan facility		$ 2,500,000	$ 2,500,000
Maximum principal amount on revolving line of credit							$ 20,000,000
Maturity date		Apr. 3, 2020
Line of Credit Facility, Interest Rate Description		Outstanding principal amount incurs interest at LIBOR plus 4.5% per annum.

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Schedule of components of (loss) income before income taxes
Domestic	$ 23,894	$ 15,246
Foreign	(17,915)	(6,222)
INCOME BEFORE INCOME TAXES	$ 5,979	$ 9,024

Income Taxes (Details 1)

Income Taxes (Details 1) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred income tax assets:
Bad debt reserve	$ 701	$ 543
Accrued expenses	1,093	2,629
State taxes	80	91
Charitable contributions	173	189
Net operating loss	49,055	46,632
ROU assets	521
Lease liability	(474)
Stock options and restricted stock	520	519
Depreciation	5,241	6,209
Total deferred income tax assets	56,910	56,812
Valuation allowance	(44,756)	(41,187)
DEFERRED INCOME TAX ASSETS, NET	$ 12,154	$ 15,625

Income Taxes (Details 2)

Income Taxes (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Current:
Federal
State and local	(1,129)	(1,107)
Foreign
Total current income taxes	(1,129)	(1,107)
Deferred:
Federal	(2,808)	13,609
State and local	(663)	(126)
Foreign
Deferred income taxes	(3,471)	13,483
(PROVISION FOR) BENEFIT FROM INCOME TAXES	$ (4,600)	$ 12,376

Income Taxes (Details 3)

Income Taxes (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Effective Income Tax Rate Reconciliation, Amount [Abstract]
U.S. federal income tax benefit at statutory rate	$ (1,256)	$ (1,895)
Valuation allowance	(3,569)	15,113
Nondeductible expense	175	(12)
Foreign tax rate differential	13	1,493
Other	567	(1,174)
State and local income tax, net of federal benefit	(530)	(1,149)
(PROVISION FOR) BENEFIT FROM INCOME TAXES	$ (4,600)	$ 12,376

Income Taxes (Details 4)

Income Taxes (Details 4) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Summary of change in the valuation allowance for deferred income taxes
Balance at beginning of period	$ 41,187	$ 48,337
Additions charged to costs and expenses	3,569	7,963
Deductions		(15,113)
Balance at end of period	$ 44,756	$ 41,187

Income Taxes (Details 5)

Income Taxes (Details 5) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Schedule of change in the balance of unrecognized income tax benefits
Balance at beginning of period	$ 433	$ 558
Additions based on tax positions related to the current period	84	98
Lapses of statutes of limitations	(134)	(223)
Balance at end of period	$ 383	$ 433

Income Taxes (Details Textual)

Income Taxes (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Income Taxes (Textual)
Net operating loss carryforwards	$ 30.8
Operating loss carry forwards amount no expiration	2.5
Deferred Tax Assets Valuation Allowance [Member]
Income Taxes (Textual)
Valuation allowance		$ 15
Unconsolidated Entities [Member]
Income Taxes (Textual)
Net operating loss carryforwards	$ 35.5
Operating loss carryforwards, expiration date	Dec. 31, 2025
U.S. federal [Member]
Income Taxes (Textual)
Net operating loss carryforwards	$ 21.1
Operating loss carryforwards, expiration date	Dec. 31, 2034
U.S. federal [Member] | Minimum [Member]
Income Taxes (Textual)
Income tax returns period	2016
U.S. federal [Member] | Maximum [Member]
Income Taxes (Textual)
Income tax returns period	2019
Foreign [Member]
Income Taxes (Textual)
Net operating loss carryforwards	$ 121.5
Operating loss carry forwards amount no expiration	$ 104.6
Foreign [Member] | Minimum [Member]
Income Taxes (Textual)
Income tax returns period	2015
Foreign [Member] | Maximum [Member]
Income Taxes (Textual)
Income tax returns period	2019
State [Member]
Income Taxes (Textual)
Net operating loss carryforwards	$ 131.8
State [Member] | Minimum [Member]
Income Taxes (Textual)
Operating loss carryforwards, expiration date	Dec. 31, 2030
Income tax returns period	2015
State [Member] | Maximum [Member]
Income Taxes (Textual)
Operating loss carryforwards, expiration date	Dec. 31, 2038
Income tax returns period	2019

Equity (Details)

Equity (Details) - USD ($)	Mar. 06, 2019	Feb. 15, 2019	Jun. 12, 2018	Jun. 08, 2018	Jun. 30, 2018	Jul. 30, 2014	Dec. 31, 2019	Dec. 31, 2018	Mar. 11, 2013
Equity (Textual)
Common stock dividend							$ 8,114,000	$ 7,774,000
Remaining number of shares available for repurchase							6,200,000
Preferred stock dividend declared							$ 1,481,000	1,481,000
Sales of equity of subsidiaries								6,000,000
Purchases of equity of subsidiary							$ (191,000)
Warrants exercise price per share			$ 4.77				$ 7.46	$ 6.51
Warrants expiry term				June 2023			June 2023
Description of sales of shares and warrants			The Company sold to a third-party investor (1) 230,415 treasury shares of the Company’s Class B common stock, at a price of $4.34 per share for an aggregate sales price of $1.0 million, and (2) warrants to purchase an additional 209,644 shares of the Company’s Class B common stock at an exercise price of $4.77 per share for an aggregate exercise price of $1.0 million.
Treasury shares							1,000,000	200,000
Treasury Stock, Value							$ (7,675,000)	$ (1,624,000)
Board of Directors Chairman [Member]
Equity (Textual)
Description of sales of shares and warrants				The Company sold to Howard S. Jonas, the Chairman of the Company’s Board of Directors and a principal owner, (1) 1,152,074 shares of the Company’s Class B common stock, at a price of $4.34 per share for an aggregate sales price of $5.0 million, and (2) warrants to purchase an additional 1,048,218 shares of the Company’s Class B common stock at an exercise price of $4.77 per share for an aggregate exercise price of $5.0 million.
Gogas [Member]
Equity (Textual)
Purchases of equity of subsidiary interest					5.00%
Common stock, Shares					41,667
Gogas [Member] | Maximum [Member]
Equity (Textual)
Ownership acquire interest of company					97.00%
Gogas [Member] | Minimum [Member]
Equity (Textual)
Ownership acquire interest of company					92.00%
Preferred Stock [Member]
Equity (Textual)
Preferred stock dividend rate		$ 0.1594						$ 0.6376
Common stock dividend
Preferred stock dividend declared
Record date of declared dividend		Feb. 6, 2020
Purchases of equity of subsidiary
Dividend Declared [Member]
Equity (Textual)
Common stock dividends declared	$ 0.075
Paid date of declared dividend	Mar. 24, 2020
Record date of declared dividend	Apr. 3, 2020
Dividend Paid [Member]
Equity (Textual)
Common stock dividend							$ 8,100,000	$ 7,400,000
Cash dividend paid							$ 0.30	$ 0.30
Dividend Paid [Member] | Preferred Stock [Member]
Equity (Textual)
Preferred stock dividend rate							$ 0.6376
Preferred stock dividend declared							$ 1,500,000
Class A common stock
Equity (Textual)
Common stock dividend
Preferred stock dividend declared
Cash dividend paid							$ 0.30
Purchases of equity of subsidiary
Common stock, Shares							1,574,000	1,574,000
Class B common stock
Equity (Textual)
Common stock dividend
Number of shares repurchased, shares							48,197	149,000
Number of shares repurchased, value							$ 500,000	$ 900,000
Number of stock authorized to be repurchased							731,869		7,000,000
Preferred stock dividend declared
Cash dividend paid								$ 0.30
Commitment to purchase shares						600,000
Common stock dividends declared	$ 0.075
Commitment to purchase shares price per share						$ 6.82
Purchases of equity of subsidiary
Sale of shares				1,152,074
Sale of shares price per share			$ 4.34	$ 4.34
Amount of aggregate sales price			$ 1,000,000	$ 5,000,000
Warrants to purchase shares			209,644				1,257,862
Warrants exercise price per share							$ 4.77
Amount of warrants aggregate exercise price			$ 1,000,000
Common stock, Shares							25,785,000	25,544,000
Fair value of shares of common stock					$ 200,000
Treasury shares			230,415
Stock repurchase program of an aggregate amount							$ 5,600,000
Class B common stock | Howards Jonas [Member]
Equity (Textual)
Commitment to purchase shares						3,600,000
Commitment to purchase shares price per share						$ 6.82
Warrants to purchase shares				1,048,218
Warrants exercise price per share				$ 4.77
Amount of warrants aggregate exercise price				$ 5,000,000
Series 2012-A Preferred Stock [Member]
Equity (Textual)
Preferred stock, liquidation preference per share							$ 8.50
Preferred stock dividend rate							$ 0.6375
Preferred stock, dividend payment rate, variable							Seven and one-half percent (7.5%) of the quotient obtained by dividing (A) the amount by which the EBITDA for a fiscal year of the Company's retail energy provider business exceeds $32 million by (B) 8,750,000 (the "Additional Dividend").
Preferred stock dividend declared							$ 8,750,000

Stock-Based Compensation (Detai

Stock-Based Compensation (Details) - Restricted Stock [Member] shares in Thousands	12 Months Ended
	Dec. 31, 2019$ / sharesshares
Summary of the status of the Company's grants of restricted shares of Class B common stock
Beginning balance, Number of Non-vested Shares | shares	367
Number of Non-vested Shares, Granted | shares	199
Number of Non-vested Shares, Vested | shares	(158)
Number of Non-vested Shares, Forfeited | shares	(163)
Ending balance, Number of Non-vested Shares | shares	245
Beginning balance, Weighted- Average Grant Date Fair Value | $ / shares	$ 5.46
Weighted- Average Grant Date Fair Value, Granted | $ / shares	6.50
Weighted- Average Grant Date Fair Value, Vested | $ / shares	5.61
Weighted- Average Grant Date Fair Value, Forfeited | $ / shares	6.38
Ending balance, Weighted- Average Grant Date Fair Value | $ / shares	$ 5.59

Stock-Based Compensation (Det_2

Stock-Based Compensation (Details 1) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Equity compensation plans, valuation assumptions
Average risk-free interest rate	2.50%	2.60%
Expected dividend yield	3.70%	6.90%
Expected volatility	52.70%	55.80%
Expected term	4 years	5 years
Weighted-average grant date fair value of options granted	$ 2.6	$ 1.3

Stock-Based Compensation (Det_3

Stock-Based Compensation (Details 2) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Summary of stock option activity
Number of Options, Outstanding, Beginning Balance	635
Number of Options, Granted	126
Number of Options, Exercised	(205)
Number of Options, Cancelled/Forfeited
Number of Options, Outstanding, Ending Balance	556	635
Number of Options, Exercisable	468
Weighted-Average Exercise Price Outstanding, Beginning Balance	$ 5.83
Weighted-Average Exercise Price, Granted	8.05
Weighted-Average Exercise Price, Exercised	6.85
Weighted-Average Exercise Price, Cancelled/Forfeited
Weighted-Average Exercise Price Outstanding, Ending Balance	5.96	$ 5.83
Weighted-Average Exercise Price, Exercisable	$ 6.69
Weighted-Average Remaining Contractual Term, Outstanding	3 years 1 month 6 days	3 years 6 months
Weighted-Average Remaining Contractual Term, Exercisable	2 years 2 months 12 days
Aggregate Intrinsic Value, Outstanding	$ 1,065	$ 434
Aggregate Intrinsic Value, Exercisable	$ 544

Stock-Based Compensation (Det_4

Stock-Based Compensation (Details Textual)	Feb. 11, 2019USD ($)Item$ / sharesshares	May 05, 2015	Aug. 31, 2018USD ($)shares	Dec. 31, 2018USD ($)	Dec. 31, 2019USD ($)shares	Dec. 31, 2018USD ($)shares	May 07, 2018shares	Aug. 31, 2017
Stock-Based Compensation (Textual)
Stock-based compensation					$ 1,102,000	$ 4,523,000
Total intrinsic value of options exercised					800,000	800,000
Class B common stock issued for GRE deferred stock units				$ 1,886,000	$ (5,584,000)	1,886,000
Option awards vest services contractual term					3 years
Option awards vest contractual term					10 years
Class B common stock with aggregate cost						800
Proceeds from Stock Options Exercised					$ 1,407,000
GREI [Member]
Stock-Based Compensation (Textual)
Ownership interest of company								4.00%
Vesting of deferred stock units					$ 100,000
GES [Member]
Stock-Based Compensation (Textual)
Ownership interest of company								4.50%
Officers and employees [Member]
Stock-Based Compensation (Textual)
Ownership interest of company		3.90%
Option awards vest contractual term		3 years
Restricted Stock [Member]
Stock-Based Compensation (Textual)
Option awards vest services contractual term					3 years
Restricted Stock Granted [Member]
Stock-Based Compensation (Textual)
Total grant date fair value of shares vested					$ 400,000	400,000
Stock-based compensation					1,000,000	3,400,000
Stock options [Member]
Stock-Based Compensation (Textual)
Stock-based compensation					$ 100,000
Other Subsidiary Equity [Member]
Stock-Based Compensation (Textual)
Stock-based compensation						$ 1,100,000
Common Class B [Member]
Stock-Based Compensation (Textual)
Class B common stock issued for GRE deferred stock units, Shares | shares						310
Class B common stock issued for GRE deferred stock units						$ 3,000
Class B common stock with aggregate cost			$ 800,000
Acquired shares | shares			128,865
Common Class B [Member] | GRE [Member]
Stock-Based Compensation (Textual)
Class B common stock issued for GRE deferred stock units, Shares | shares			310,467
Class B common stock issued for GRE deferred stock units			$ 1,900,000
Common Class B [Member] | Howard Jonas [Member]
Stock-Based Compensation (Textual)
Exercise price | $ / shares	$ 8.05
Cash bonus	$ 300,000
Acquired shares | shares	126,176
Number of annual installments in which options will vest | Item	3
Common Class B [Member] | Restricted Stock [Member]
Stock-Based Compensation (Textual)
Total unrecognized compensation cost					$ 1,000,000
Period of unrecognized compensation cost expected to be recognized					1 year 4 months 24 days
2011 Stock Option and Incentive Plan [Member]
Stock-Based Compensation (Textual)
Shares available for future grants, Shares | shares					503,000
2011 Stock Option and Incentive Plan [Member] | Common Class B [Member]
Stock-Based Compensation (Textual)
Shares available for future grants, Shares | shares							372,000
Common stock reserved for future issuance | shares					2,700,000		974,199

Variable Interest Entity (Detai

Variable Interest Entity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Variable Interest Entity [Abstract]
Net loss	$ (490)	$ (1,197)
Aggregate provided by repaid to the Company, net	$ (649)	$ (809)

Variable Interest Entity (Det_2

Variable Interest Entity (Details 1) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Summarized consolidated balance sheet amounts related to CCE
TOTAL ASSETS	$ 156,244	$ 146,864
CCE [Member]
Summarized consolidated balance sheet amounts related to CCE
TOTAL ASSETS	1,576	1,463
TOTAL LIABILITIES AND NONCONTROLLING INTERESTS	1,576	1,463
CCE [Member] | Cash and cash equivalents [Member]
Summarized consolidated balance sheet amounts related to CCE
TOTAL ASSETS	250	70
CCE [Member] | Trade accounts receivable [Member]
Summarized consolidated balance sheet amounts related to CCE
TOTAL ASSETS	586	623
CCE [Member] | Prepaid expenses and other current assets [Member]
Summarized consolidated balance sheet amounts related to CCE
TOTAL ASSETS	381	411
CCE [Member] | Other assets [Member]
Summarized consolidated balance sheet amounts related to CCE
TOTAL ASSETS	359	359
CCE [Member] | Current liabilities [Member]
Summarized consolidated balance sheet amounts related to CCE
TOTAL LIABILITIES AND NONCONTROLLING INTERESTS	467	513
CCE [Member] | Due to IDT Energy [Member]
Summarized consolidated balance sheet amounts related to CCE
TOTAL LIABILITIES AND NONCONTROLLING INTERESTS	2,598	1,949
CCE [Member] | Noncontrolling interests from CCE [Member]
Summarized consolidated balance sheet amounts related to CCE
TOTAL LIABILITIES AND NONCONTROLLING INTERESTS	$ (1,489)	$ (999)

Variable Interest Entity (Det_3

Variable Interest Entity (Details Textual) $ in Millions	1 Months Ended
	Oct. 31, 2015USD ($)
Variable Interest Entity (Textual)
Options Expiration Date	Oct. 22, 2023
CCE [Member]
Variable Interest Entity (Textual)
Payment to owner of limited liability company	$ 0.2
Loan amount	$ 0.5
Variable interest entity, description	GRE paid $0.2 million to the owner of the limited liability company interests in CCE, and loaned CCE $0.5 million in exchange for an option to purchase 100% of the issued and outstanding limited liability company interests of CCE for one dollar plus the forgiveness of the $0.5 million loan.
Percentage of option to purchase	100.00%
Forgiveness of loan	$ 0.5

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Summary of accumulated balances for other comprehensive income [Abstract]
Accumulated other comprehensive income, Foreign currency translation, Beginning balance	$ 2,591	$ 3,045
Other comprehensive income attributable to Genie, Foreign currency translation	(72)	(454)
Accumulated other comprehensive income, Foreign currency translation, Ending balance	$ 2,519	$ 2,591

Legal and Regulatory Proceedi_2

Legal and Regulatory Proceedings (Details) $ in Thousands		6 Months Ended	12 Months Ended
		Jun. 30, 2019USD ($)	Dec. 31, 2019USD ($)Plaintiffs	Dec. 31, 2018USD ($)	Jul. 23, 2019USD ($)	Sep. 30, 2018USD ($)	Mar. 22, 2018USD ($)	Sep. 30, 2017USD ($)
Legal and Regulatory Proceedings (Textual)
Total settlement payment			$ 200
Selling, general and administrative expense	[1]		72,467	$ 61,544
Accrued expenses			26,116	25,242	$ 16,000
Other current liabilities			$ 2,704	3,279
Related revenue reduction				1,700
Number of plaintiffs | Plaintiffs			3
GRE [Member]
Legal and Regulatory Proceedings (Textual)
Accrued expenses			$ 200
Settlement Agreement [Member]
Legal and Regulatory Proceedings (Textual)
Total settlement payment		$ 5,000
Selling, general and administrative expense				1,700
New Jersey Office and Attorney General [Member]
Legal and Regulatory Proceedings (Textual)
Total payments reasonable settlement							$ 1,200
Accrued expenses								$ 1,500
New York PSC [Member]
Legal and Regulatory Proceedings (Textual)
Gross revenue			63,200	74,200
IDT Energy [Member]
Legal and Regulatory Proceedings (Textual)
Total payments reasonable settlement							$ 1,400
Ohio Public Utilities Commission [Member]
Legal and Regulatory Proceedings (Textual)
Accrued expenses						$ 200
Gross revenue			600	1,400
Stock Granted, Value, Share-based Compensation, Forfeited			200
State of Connecticut Public Utilities Regulatory Authority [Member]
Legal and Regulatory Proceedings (Textual)
Gross revenue			35,600	24,800
State of Illinois Office of Attorney General [Member]
Legal and Regulatory Proceedings (Textual)
Total payments reasonable settlement			3,000
Other current liabilities						$ 3,000
Gross revenue			$ 10,100	$ 16,500
[1]	Stock-based compensation included in selling, general and administrative expenses

Commitments and Contingencies_2

Commitments and Contingencies (Details) $ in Thousands	Dec. 31, 2019USD ($)
Purchase Commitments
2020	$ 78,890
2021	39,182
2022	15,270
2023	4,281
2024	640
Total payments	$ 138,263

Commitments and Contingencies_3

Commitments and Contingencies (Details Textual) $ in Millions	Dec. 31, 2019USD ($)
Commitments and Contingencies (Textual)
Purchase and other commitments	$ 138.3
Future purchases of electricity	102.1
Purchase of renewable energy credit	36.2
Letters of credit	1.8
Electricity Purchase Commitment Included In Other Commitment	102.1
Genie Retail Energy [Member]
Commitments and Contingencies (Textual)
Aggregate performance bond outstanding	12.5
BP [Member]
Commitments and Contingencies (Textual)
Payment of trade accounts payable to BP Energy	14.9
Advance payment	2.5
Trade Accounts Receivable [Member]
Commitments and Contingencies (Textual)
Assets pledged as collateral to BP Energy	47.8
Restricted Cash [Member]
Commitments and Contingencies (Textual)
Assets pledged as collateral to BP Energy	$ 1.6

Related Party Transactions (Det

Related Party Transactions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
IDT [Member]
Summary of related party transactions
Amount charged to the Company	$ 1,142	$ 1,340
Amount charged by the Company	160	355
Rafael [Member]
Summary of related party transactions
Amount charged to the Company	$ 222	$ 161

Related Party Transactions (D_2

Related Party Transactions (Details 1) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
IDT [Member]
Related Party Transaction [Line Items]
Due to Related Parties	$ 434	$ 267
Due from Related Parties	45	33
Rafael [Member]
Related Party Transaction [Line Items]
Due to Related Parties

Related Party Transactions (D_3

Related Party Transactions (Details Textual) - USD ($) $ in Millions	Aug. 31, 2018	Aug. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2015
Related Party Transactions (Textual)
Notes receivable outstanding from employees			$ 0.1	$ 0.2
Net book value		$ 1
Amount paid to employees				0.8
Recognized gain from extinguishment of liability				$ 0.2
Aggregate principal amount	$ 0.4	0.4			$ 0.5
Outstanding balance	0.5	0.5
Accrued interest	$ 0.1
New note payment terms, description	The New Note requires scheduled payments starting on December 31, 2020 until December 31, 2052.
Payment of insurance premium			0.3
New Note [Member]
Related Party Transactions (Textual)
Outstanding balance	$ 0.1	$ 0.1	$ 0.1

Business Segment and Geograph_3

Business Segment and Geographic Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Operating results for the business segments
Revenues	$ 315,291	$ 280,309
Income (loss) from operations	9,825	11,978
Depreciation and amortization	3,627	2,062
Exploration		244
Impairment of goodwill	400	2,742
Equity in the net loss in equity method investees	(4,830)	(3,430)
GRE [Member]
Operating results for the business segments
Revenues	286,611	274,443
Income (loss) from operations	27,176	28,988
Depreciation and amortization	703	1,538
Exploration
Impairment of goodwill
Write-off of capitalized exploration costs
Equity in the net loss in equity method investees
GRE International [Member]
Operating results for the business segments
Revenues	16,595
Income (loss) from operations	(8,133)	(1,201)
Depreciation and amortization	1,819	1
Exploration
Impairment of goodwill
Write-off of capitalized exploration costs
Equity in the net loss in equity method investees	4,440	2,990
GES [Member]
Operating results for the business segments
Revenues	12,085	5,696
Income (loss) from operations	(2,895)	(982)
Depreciation and amortization	1,047	178
Exploration
Impairment of goodwill	(400)
Write-off of capitalized exploration costs
Equity in the net loss in equity method investees
GOGAS [Member]
Operating results for the business segments
Revenues		170
Income (loss) from operations	(1,028)	(6,532)
Depreciation and amortization	57	345
Exploration		244
Impairment of goodwill
Write-off of capitalized exploration costs		2,742
Equity in the net loss in equity method investees	291	440
Corporate [Member]
Operating results for the business segments
Revenues
Income (loss) from operations	(5,295)	(8,295)
Depreciation and amortization	1
Exploration
Impairment of goodwill
Write-off of capitalized exploration costs
Equity in the net loss in equity method investees	$ 99

Business Segment and Geograph_4

Business Segment and Geographic Information (Details 1) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Summary total assets for the business segments
Total assets	$ 156,244	$ 146,864
Investment in equity method investees	675	2,208
GRE [Member]
Summary total assets for the business segments
Total assets	105,937	113,918
Investment in equity method investees
GRE International [Member]
Summary total assets for the business segments
Total assets	11,468	3,654
Investment in equity method investees		1,679
GES [Member]
Summary total assets for the business segments
Total assets	19,383	11,519
Investment in equity method investees
GOGAS [Member]
Summary total assets for the business segments
Total assets	10,873	15,375
Investment in equity method investees	275	529
Corporate [Member]
Summary total assets for the business segments
Total assets	8,583	2,398
Investment in equity method investees	$ 400

Business Segment and Geograph_5

Business Segment and Geographic Information (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenues From Customers [Abstract]
Revenue from customer	$ 16,595	$ 170
United States [Member]
Revenues From Customers [Abstract]
Revenue from customer	16,595
Foreign Countries [Member]
Revenues From Customers [Abstract]
Revenue from customer		$ 170

Business Segment and Geograph_6

Business Segment and Geographic Information (Details 3) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Net Long Lived Assets and Assets Held Outside Country [Abstract]
Long-lived assets, net	$ 21,938	$ 21,938
Total assets	156,244	146,864
United States [Member]
Net Long Lived Assets and Assets Held Outside Country [Abstract]
Long-lived assets, net	17,498	20,529
Total assets	143,738	141,336
Foreign Countries [Member]
Net Long Lived Assets and Assets Held Outside Country [Abstract]
Long-lived assets, net	4,440	1,409
Total assets	$ 12,506	$ 5,528

Business Segment and Geograph_7

Business Segment and Geographic Information (Details Textual)	12 Months Ended
	Dec. 31, 2019
Business Segment and Geographic Information (Textual)
Company's investment, ownership percentage in subsidiary	100.00%
Afek [Member]
Business Segment and Geographic Information (Textual)
Company's investment, ownership percentage in subsidiary	86.10%

Subsequent Event (Details)

Subsequent Event (Details)	3 Months Ended
	Mar. 31, 2020
Subsequent Event [Member] | GRE International [Member]
Subsequent Event (Textual)
Increased interest rate	92.50%