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Document And Entity Information - shares	9 Months Ended
Document And Entity Information - shares	Sep. 30, 2019	Nov. 14, 2019
Document And Entity Information
Entity Registrant Name	MGT CAPITAL INVESTMENTS, INC.
Entity Central Index Key	0001001601
Document Type	10-Q
Document Period End Date	Sep. 30, 2019
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity's Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business Flag	true
Entity Emerging Growth Company	false
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		374,893,911
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2019

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents	$ 2,113	$ 96
Prepaid expenses and other current assets	328	193
Intangible digital assets	52	30
Total current assets	2,493	319
Non-current assets
Property and equipment, at cost, net	840
Right of use asset, operating lease, net of accumulated amortization	32
Other assets	1,900	204
Total assets	5,265	523
Current liabilities
Accounts payable	711	537
Accrued expenses and other payables	83	10
Notes payable, net of discount	939	1,285
Management agreement termination liability	194
Operating lease liability	28
Total current liabilities	1,955	1,832
Total liabilities	1,955	1,832
Commitments and Contingencies
Stockholders' Equity (Deficit)
Preferred stock value
Common stock, $0.001 par value; 2,500,000,000 shares authorized; 351,390,511 and 111,079,683 shares issued and outstanding at September 30, 2019 and December 31, 2018, respectively.	351	111
Additional paid-in capital	416,262	403,299
Accumulated deficit	(413,303)	(404,719)
Total stockholders' equity (deficit)	3,310	(1,309)
Total Liabilities and Stockholders' Equity (Deficit)	5,265	523
Undesignated Preferred Stock [Member]
Stockholders' Equity (Deficit)
Preferred stock value
Series B Preferred Stock [Member]
Stockholders' Equity (Deficit)
Preferred stock value
Series C Convertible Preferred Stock [Member]
Stockholders' Equity (Deficit)
Preferred stock value

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Statement [Abstract]
Revenue	$ 92	$ 589	$ 190	$ 1,954
Operating expenses
Cost of revenue	89	1,470	193	3,366
General and administrative	1,884	2,885	5,874	10,377
Restructuring charge				2,499
Impairment of property and equipment		3,668		3,668
Sales and marketing				55
Research and development				47
Total operating expenses	1,973	8,023	6,067	20,012
Operating loss	(1,881)	(7,434)	(5,877)	(18,058)
Other non-operating income (expense)
Interest income (expense)	7	(339)	7	(456)
Change in fair value of liability	135		135
Accretion of debt discount	(946)		(4,768)
Warrant modification expense				(139)
Loss on sale of cybersecurity assets				(127)
Gain (loss) on sale of property and equipment	431		513	(47)
Gain on extinguishment of debt			2,406
Total other non-operating expense	(373)	(339)	(1,707)	(769)
Net loss	(2,254)	(7,773)	(7,584)	(18,827)
Deemed dividend	(46)		(1,005)	(2,514)
Net loss attributable to common stockholders	$ (2,300)	$ (7,773)	$ (8,589)	$ (21,341)
Per-share data
Basic and diluted loss per share	$ (0.01)	$ (0.11)	$ (0.04)	$ (0.32)
Weighted average number of common shares outstanding	318,545,977	72,013,925	217,910,541	65,804,987

Condensed Consolidated Statement of Changes in Stockholders' (Deficit) Equity (Unaudited) - USD ($) $ in Thousands	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Subscription Receivable [Member]	Accumulated Deficit [Member]	Total (Deficit) Equity Attributable to MGT Stockholders [Member]	Non-controlling Interest [Member]	Total
Balance at Dec. 31, 2017		$ 59	$ 390,736		$ (378,900)	$ 11,895	$ (22)	$ 11,873
Balance, shares at Dec. 31, 2017		58,963,009
Stock-based compensation - employee restricted stock		$ 1	1,086			1,087		1,087
Stock-based compensation - employee restricted stock, shares		850,000
Stock issued for services		$ 1	838			839		839
Stock issued for services, shares		448,551
Stock issued for prior year notes payable conversion		$ 3	(3)
Stock issued for prior year notes payable conversion, shares		3,381,816
Stock sold in connection with private placements			$ 80			80		80
Stock sold in connection with private placements, shares		200,000
Exercise of warrants		$ 2	$ 279			281		281
Exercise of warrants, shares		2,224,250
Stock issued in disposition of cybersecurity assets			120			120		120
Stock issued in disposition of cybersecurity assets, shares		60,000
Warrant modification expense			139			139		139
Deemed dividend			2,514		(2,514)
Net loss					(4,549)	(4,549)		(4,549)
Balance at Mar. 31, 2018		$ 66	395,789		(385,963)	9,892	(22)	9,870
Balance, shares at Mar. 31, 2018		66,127,626
Balance at Dec. 31, 2017		$ 59	390,736		(378,900)	11,895	(22)	11,873
Balance, shares at Dec. 31, 2017		58,963,009
Warrant modification expense								139
Net loss								(18,827)
Balance at Sep. 30, 2018		$ 81	400,296		(400,241)	136	(22)	114
Balance, shares at Sep. 30, 2018		81,748,127
Balance at Mar. 31, 2018		$ 66	395,789		(385,963)	9,892	(22)	9,870
Balance, shares at Mar. 31, 2018		66,127,626
Stock-based compensation - employee restricted stock		$ 1	1,248			1,249		1,249
Stock-based compensation - employee restricted stock, shares		1,500,000
Forfeiture of employee restricted stock		$ (1)	(232)			(233)		(233)
Forfeiture of employee restricted stock, shares		(550,000)
Stock issued for services			875			875		875
Stock issued for services, shares		730,000
Issuance of common stock for prior year sale		$ 1	(1)
Issuance of common stock for prior year sale, shares		750,000
Exercise of warrants		$ 4	621			625		625
Exercise of warrants, shares		3,200,000
Net loss					(6,505)	(6,505)		(6,505)
Balance at Jun. 30, 2018		$ 71	398,300		(392,468)	5,903	(22)	5,881
Balance, shares at Jun. 30, 2018		71,757,626
Stock-based compensation - employee restricted stock		$ 1	1,112			1,113		1,113
Stock-based compensation - employee restricted stock, shares		510,000
Stock issued for services		$ 0	322			322		322
Stock issued for services, shares		360,500
Issuance of common stock for prior year sale		$ 1	(1)			0		0
Issuance of common stock for prior year sale, shares		1,250,000
Exercise of warrants		$ 4	(2)			2		2
Exercise of warrants, shares		3,920,001
Warrant modification expense
Sale of stock under equity purchase agreement		$ 4	565			569		569
Sale of stock under equity purchase agreement, shares		3,950,000
Net loss					(7,773)	(7,773)		(7,773)
Balance at Sep. 30, 2018		$ 81	400,296		(400,241)	136	(22)	114
Balance, shares at Sep. 30, 2018		81,748,127
Balance at Dec. 31, 2018		$ 111	403,299		(404,719)	(1,309)		(1,309)
Balance, shares at Dec. 31, 2018		111,079,683
Stock based compensation			894			894		894
Stock based compensation, shares
Stock issued for services - employee restricted stock			60			60		60
Stock issued for services - employee restricted stock, shares		160,500
Sale of stock under equity purchase agreement		$ 43	2,111	(346)		1,808		1,808
Sale of stock under equity purchase agreement, shares		43,100,000
Cumulative effect adjustment related to ASU adoption					3	3		3
Net loss					(1,709)	(1,709)		(1,709)
Balance at Mar. 31, 2019		$ 154	406,364	(346)	(406,425)	(253)		(253)
Balance, shares at Mar. 31, 2019		154,340,183
Balance at Dec. 31, 2018		$ 111	403,299		(404,719)	(1,309)		$ (1,309)
Balance, shares at Dec. 31, 2018		111,079,683
Issuance of common stock for prior year sale, shares								43,100,000
Warrant modification expense
Cumulative effect adjustment related to ASU adoption								3
Net loss								(7,584)
Balance at Sep. 30, 2019		$ 351	416,262		(413,303)	3,310		3,310
Balance, shares at Sep. 30, 2019	115	351,390,511
Balance at Mar. 31, 2019		$ 154	406,364	(346)	(406,425)	(253)		(253)
Balance, shares at Mar. 31, 2019		154,340,183
Stock-based compensation - employee restricted stock			730			730		730
Stock-based compensation - employee restricted stock, shares
Exercise of warrants		$ 4	116			120		120
Exercise of warrants, shares		4,000,000
Deemed dividend			959		(959)
Sale of stock under equity purchase agreement		$ 24	1,502	346		1,872		1,872
Sale of stock under equity purchase agreement, shares		23,900,000
Common stock issued on conversion of notes payable		$ 57	1,640			1,697		1,697
Common stock issued on conversion of notes payable, shares		57,224,243
Stock sold in connection with registered direct placements		$ 18	507			525		525
Stock sold in connection with registered direct placements, shares		17,500,000
Sale of preferred stock			1,890			1,890		1,890
Sale of preferred stock, shares	190
Conversion of preferred stock		$ 14	(14)
Conversion of preferred stock, shares	(50)	14,077,092
Cancellation of shares received from transfer agent
Cancellation of shares received from transfer agent, shares		(83,752)
Net loss					(3,619)	(3,619)		(3,619)
Balance at Jun. 30, 2019		$ 271	413,694		(411,003)	2,962		2,962
Balance, shares at Jun. 30, 2019	140	270,957,766
Stock-based compensation - employee restricted stock			312			312		312
Stock-based compensation - employee restricted stock, shares
Stock issued for services
Warrant modification expense
Deemed dividend			46		(46)
Sale of stock under equity purchase agreement		$ 40	1,402			1,442		1,442
Sale of stock under equity purchase agreement, shares		40,000,000
Common stock issued on conversion of notes payable		$ 16	434			450		450
Common stock issued on conversion of notes payable, shares		16,654,170
Sale of preferred stock			100			100		100
Sale of preferred stock, shares	10
Conversion of preferred stock		$ 14	(14)
Conversion of preferred stock, shares	(35)	13,528,575
Adoption of ASC 842
Issuance of common stock for mining assets		$ 10	301			312		312
Issuance of common stock for mining assets, shares		10,250,000
Warrant buy-back and cancellation			(14)			(14)		(14)
Net loss					(2,254)	(2,254)		(2,254)
Balance at Sep. 30, 2019		$ 351	$ 416,262		$ (413,303)	$ 3,310		$ 3,310
Balance, shares at Sep. 30, 2019	115	351,390,511

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended		12 Months Ended
	Sep. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Cash Flows From Operating Activities
Net loss	$ (2,254)	$ (1,709)	$ (7,773)	$ (4,549)	$ (7,584)	$ (18,827)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation	27		1,429		27	2,618
(Gain) loss on sale of property and equipment	(431)				(513)	47
Termination of management agreements					364
Change in fair value of liability	(135)				(135)
Impairment of property and equipment			3,668			3,668
Stock-based compensation expense					1,991	5,417
Warrant modification expense				139		139
Extinguishment of note payable					(2,406)
Amortization of note discount	946				4,768	455
Loss on sale of cybersecurity assets						127
Change in operating assets and liabilities
Prepaid expenses and other current assets					(134)	530
Intangible digital assets					(22)	31
Right of use asset					54
Lease liability					(56)
Other assets					122
Accounts payable					250	12
Accrued expenses					50	(1,385)
Net cash used in operating activities					(3,224)	(7,168)
Cash Flows From Investing Activities
Proceeds from sale of cybersecurity assets						60
Purchase of property and equipment					(556)	(6,994)
Deposits made on property and equipment					(1,817)
Proceeds from sale of property and equipment					431	427
Net cash used in investing activities					(1,942)	(6,507)
Cash Flows From Financing Activities
Proceeds from sale of common stock					525
Proceeds from private placements of common stock						80
Payment of deferred offering costs					(70)	(141)
Proceeds from the issuance of notes payable, net of original issue discount						4,700
Proceeds from sale of stock under equity purchase agreement, net of issuance costs					4,842	365
Sale of preferred stock, net of issuance costs					1,990
Repayment of notes payable					(210)	(1,480)
Proceeds from exercise of warrants					120	907
Warrant Buybacks					(14)
Net cash provided by financing activities					7,183	4,431
Net change in cash and cash equivalents					2,017	(9,244)
Cash and cash equivalents, beginning of period		$ 96		$ 9,519	96	9,519	$ 9,519
Cash and cash equivalents, end of period	$ 2,113		$ 275		2,113	275	$ 96
Supplemental disclosure of cash flow information
Cash paid for interest					3
Cash paid for income tax
Non-cash investing and financing activities
Deemed dividend on warrant modification and beneficial conversion feature of preferred stock					1,005
Deemed dividend on triger of down round provision						2,514
Stock issued for services not yet rendered						2
Cumulative effect adjustment related to ASU adoption					3
Conversion of notes payable into common stock					2,147
Repayment of note payable and interest through the issuance of shares under the equity purchase agreement					354	366
Acquistion of miners through common stock					312
Conversion of Series C convertible preferred stock into common stock					28
Reclassification of deferred offering costs					$ 70	$ 160

Summary of Significant Accounting Policies

9 Months Ended

Sep. 30, 2019

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Note 3. Summary of Significant Accounting Policies

Principles of consolidation

The unaudited condensed consolidated financial statements include the accounts of MGT and MGT Sweden AB. All intercompany transactions and balances have been eliminated.

Use of estimates and assumptions and critical accounting estimates and assumptions

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities as of the date of the financial statements, and also affect the amounts of revenues and expenses reported for each period. Actual results could differ from those which result from using such estimates. Management utilizes various other estimates, including but not limited to determining the estimated lives of long-lived assets, determining the potential impairment of long-lived assets, the fair value of warrants issued, the fair value of conversion features, the recognition of revenue, the valuation allowance for deferred tax assets and other legal claims and contingencies. The results of any changes in accounting estimates are reflected in the financial statements in the period in which the changes become evident. Estimates and assumptions are reviewed periodically, and the effects of revisions are reflected in the period that they are determined to be necessary.

Prior Period Financial Statement Correction of an Immaterial Misstatement

During the first quarter of 2019, the Company identified certain adjustments required to correct balances within notes payable, accretion of debt discount, and the gain on extinguishment of debt relating to the modification to the June 2018 Note (as defined in Note 5) that had occurred on December 10, 2018. The Company had incorrectly calculated the fair value of the June 2018 Note as the date of its modification, which in turn, led the Company to calculate an incorrect gain on extinguishment and an incorrect accretion of debt discount. The errors discovered resulted in an overstatement of the Company’s notes payable balance of $566 as of December 31, 2018, and an overstatement of the accretion of debt discount of $14 and understatement on the gain on extinguishment of $580 for the year ended December 31, 2018.

Based on an analysis of Accounting Standards Codification (“ASC”) 250 – “Accounting Changes and Error Corrections” (“ASC 250”), Staff Accounting Bulletin 99 – “Materiality” (“SAB 99”) and Staff Accounting Bulletin 108 – “Considering the Effects of Prior Year Misstatements when Quantifying Misstatements in Current Year Financial Statements” (“SAB 108”), the Company determined that these errors were immaterial to the previously-issued consolidated financial statements, and as such no restatement was necessary. Correcting prior year financial statements for immaterial errors would not require previously filed reports to be amended. Such correction may be made the next time the registrant files the prior year financial statements. Accordingly, the misstatements were corrected during the period ended March 31, 2019 in the accompanying consolidated balance sheet as of December 31, 2018.

The effect on these revisions on the Company’s consolidated balance sheet as of December 31, 2018 is as follows:

	As previously reported at December 31, 2018			Adjustment			As revised at December 31, 2018
Notes payable, net of discount	$	1,851		$	(566	)	$	1,285
Total current liabilities		2,398			(566	)		1,832
Total liabilities		2,398			(566	)		1,832
Accumulated deficit		(405,285	)		566			(404,719	)
Total stockholders’ deficit		(1,875	)		566			(1,309	)

Revenue recognition

The Company’s primary revenue stream is related to the mining of digital currencies. The Company derives its revenue by solving “blocks” to be added to the blockchain and providing transaction verification services within the digital currency network of Bitcoin, commonly termed “cryptocurrency mining.” In consideration for these services, the Company receives digital currency (“Coins”). The Coins are recorded as revenue, using the average spot price of Bitcoin on the date of receipt. The Coins are recorded on the balance sheet as an intangible digital asset valued at the lower of cost or net realizable value. Net realizable value adjustments, to adjust the value of Coins to market value, is included in cost of revenue on the Company’s consolidated statement of operations. Further, any gain or loss on the sale of Coins would be recorded to costs of revenue. Costs of revenue include hosting fees, equipment and infrastructure depreciation, rent, net realizable value adjustments, and electricity costs.

The Company also recognized revenue from its management agreements through their termination in August and September 2019, as further described in Note 9. The Company received a fee from each management agreement based on the amount of Bitcoin mined and was reimbursed for any electricity costs incurred to run the Bitcoin mining machines it managed in its facility.

Additionally, the Company has machines located in facilities in Ohio and Colorado. The Company receives an allocation of profits from the Ohio facility. For the Colorado location, the Company recognizes Bitcoin revenue and recognizes hosting fees as cost of revenue. The Company also has machines in a temporary facility in Georgia whereby the Company recognizes Bitcoin revenue and recognizes hosting fees as cost of revenue. These machines will be moved to MGT’s permanent location in LaFayette, GA during Q4 2019.

Property and Equipment

Property and equipment are stated at cost less accumulated depreciation. Depreciation is calculated using the straight–line method on the various asset classes over their estimated useful lives, which range from one to ten years when placed in service. The cost of repairs and maintenance is expensed as incurred; major replacements and improvements are capitalized. When assets are retired or disposed of, the cost and accumulated depreciation are removed from the accounts, and any resulting gains or losses are included in income in the year of disposition.

In connection with the Company’s plans to consolidate its activities in Company-owned and managed facilities, the Company has entered into agreements to acquire Bitcoin mining machines and containers to house the mining machines requiring upfront deposits. Deposits on such purchases are classified as Other Assets. Upon delivery, installation and full payment, the assets will be classified as property and equipment on the consolidated balance sheet.

Income taxes

The Company accounts for income taxes in accordance with ASC 740, “Income Taxes”. ASC 740 requires an asset and liability approach for financial accounting and reporting for income taxes and established for all the entities a minimum threshold for financial statement recognition of the benefit of tax positions and requires certain expanded disclosures. The provision for income taxes is based upon income or loss after adjustment for those permanent items that are not considered in the determination of taxable income. Deferred income taxes represent the tax effects of differences between the financial reporting and tax basis of the Company’s assets and liabilities at the enacted tax rates in effect for the years in which the differences are expected to reverse. The Company evaluates the recoverability of deferred tax assets and establishes a valuation allowance when it is more likely than not that some portion or all the deferred tax assets will not be realized. Management makes judgments as to the interpretation of the tax laws that might be challenged upon an audit and cause changes to previous estimates of tax liability. In management’s opinion, adequate provisions for income taxes have been made. If actual taxable income by tax jurisdiction varies from estimates, additional allowances or reversals of reserves may be necessary.

Loss per share

Basic loss per share is calculated by dividing net loss applicable to common shareholders by the weighted average number of common shares outstanding during the period. Diluted loss per share is calculated by dividing the net loss attributable to common shareholders by the sum of the weighted average number of common shares outstanding plus potential dilutive common shares outstanding during the period. Potential dilutive securities, comprised of unvested restricted shares, convertible debt stock warrants and stock options, are not reflected in diluted net loss per share because such potential shares are anti–dilutive due to the Company’s net loss.

Accordingly, the computation of diluted loss per share for the three- and nine-month periods ended September 30, 2019 excludes 850,000 unvested restricted shares, 6,000,000 shares issuable under stock options, 97,575,510 shares issuable upon the conversion of convertible debt, and 68,452,381 shares under preferred stock. The computation of diluted loss per share for the three and nine months ended September 30, 2018 excludes 3,555,000 unvested restricted shares, 6,000,000 shares issuable under stock options, and 6,227,975 shares issuable under warrants.

Stock–based compensation

The Company recognizes compensation expense for all equity–based payments in accordance with ASC 718 “Compensation – Stock Compensation”. Under fair value recognition provisions, the Company recognizes equity–based compensation net of an estimated forfeiture rate and recognizes compensation cost only for those shares expected to vest over the requisite service period of the award.

Restricted stock awards are granted at the discretion of the compensation committee of the board of directors of the Company. These awards are restricted as to the transfer of ownership and generally vest over the requisite service periods, typically over a 12 to 24-month period (vesting on a straight–line basis). The fair value of a stock award is equal to the fair market value of a share of the Company’s common stock on the grant date.

The fair value of an option award is estimated on the date of grant using the Black–Scholes option valuation model. The Black–Scholes option valuation model requires the development of assumptions that are inputs into the model. These assumptions are the expected stock volatility, the risk–free interest rate, the expected life of the option, the dividend yield on the underlying stock and the expected forfeiture rate. Expected volatility is calculated based on the historical volatility of the Company’s common stock over the expected term of the option. Risk–free interest rates are calculated based on continuously compounded risk–free rates for the appropriate term.

Determining the appropriate fair value model and calculating the fair value of equity–based payment awards requires the input of the subjective assumptions described above. The assumptions used in calculating the fair value of equity–based payment awards represent management’s best estimates, which involve inherent uncertainties and the application of management’s judgment. The Company is required to estimate the expected forfeiture rate and recognize expense only for those shares expected to vest.

The Company accounts for share–based payments granted to non–employees in accordance with ASC 505–50, “Equity Based Payments to Non–Employees.” The Company determines the fair value of the stock–based payment as either the fair value of the consideration received or the fair value of the equity instruments issued, whichever is more readily determinable. If the fair value of the equity instruments issued is used, it is measured using the stock price and other measurement assumptions as of the earlier of either (1) the date at which a commitment for performance by the counterparty to earn the equity instruments is reached, or (2) the date at which the counterparty’s performance is complete. The fair value of unvested equity instruments is re-measured each reporting period and such re-measured value is amortized over the requisite remaining service period.

Gain (Loss) on Modification/Extinguishment of Debt

In accordance with ASC 470, a modification or an exchange of debt instruments that adds or eliminates a conversion option that was substantive at the date of the modification or exchange is considered a substantive change and is measured and accounted for as extinguishment of the original instrument along with the recognition of a gain/loss. Additionally, under ASC 470, a substantive modification of a debt instrument is deemed to have been accomplished with debt instruments that are substantially different if the present value of the cash flows under the terms of the new debt instrument is at least 10 percent different from the present value of the remaining cash flows under the terms of the original instrument. A substantive modification is accounted for as an extinguishment of the original instrument along with the recognition of a gain/loss.

Recent accounting pronouncements

Management does not believe that any recently issued, but not yet effective accounting pronouncements, when adopted, will have a material effect on the accompanying unaudited condensed consolidated financial statements, other than those disclosed below.

In June 2018, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2018-07, Compensation—Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting, which expands the scope of Topic 718 to include share-based payment transactions for acquiring goods and services from nonemployees. The guidance is effective for public entities for fiscal years beginning after December 15, 2018, including interim periods within that fiscal year. For all other entities, ASU 2018-07 is effective for fiscal years beginning after December 15, 2019, and interim periods within fiscal years beginning after December 15, 2020. Early adoption is permitted, but no earlier than an entity’s adoption date of Topic 606. On January 1, 2019, the Company adopted ASU 2018-07, which has not had a material effect on the Company’s financial statements.

In February 2016, the FASB issued ASU 2016-02 Leases which requires an entity to recognize assets and liabilities arising from a lease for both financing and operating leases with terms greater than 12 months. In July 2018, the FASB issued ASU 2018-10 Leases, Codification Improvements and ASU 2018-11 Leases, Targeted Improvements, to provide additional guidance for the adoption of ASU 2016-02. ASU 2018-10 clarifies certain provisions and corrects unintended applications of the guidance such as the application of implicit rate, lessee reassessment of lease classification, and certain transition adjustments that should be recognized to earnings rather than to stockholders’ (deficit) equity. ASU 2018-11 provides an alternative transition method and practical expedient for separating contract components for the adoption of ASU 2016-02. ASU 2016-02, ASU 2018-10, ASU 2018-11, (collectively, “Topic 842”) are effective for fiscal years beginning after December 15, 2018, with early adoption permitted.

On January 1, 2019, the Company adopted Topic 842 and made the following elections:

	●	The Company did not elect the hindsight practical expedient, for all leases.
	●	The Company elected the package of practical expedients to not reassess prior conclusions related to contracts containing leases, lease classification and initial direct costs for all leases.
	●	In March 2018, the FASB approved an optional transition method that allows companies to use the effective date as the date of initial application on transition. The Company elected this transition method, and as a result, will not adjust its comparative period financial information or make the newly required lease disclosures for periods before the effective date.
	●	The Company elected to not separate lease and non-lease components, for all leases.

On January 1, 2019, the Company recorded a Right of Use Asset of $87, a corresponding Lease Liability of $84 and a corresponding cumulative adjustment to accumulated deficit of $3 in accordance with Topic 842.

In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement, Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement (“ASU 2018-13”), which is intended to improve the effectiveness of fair value measurement disclosures. ASU 2018-13 is effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the impact of adopting this pronouncement.

In August 2018, the FASB issued ASU 2018-15, Intangible – Goodwill and Other – Internal-Use Software (“ASU 2018-15”), which aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. ASU 2018-15 is effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the impact of adopting this pronouncement.

Management’s evaluation of subsequent events

The Company evaluates events that have occurred after the balance sheet date but before the financial statements are issued. Based upon the review, other than what is described in Note 11 – Subsequent Events, the Company did not identify any recognized or non-recognized subsequent events that would have required adjustment or disclosure in the unaudited condensed consolidated financial statements.

Notes Payable

9 Months Ended

Sep. 30, 2019

Debt Disclosure [Abstract]

Notes Payable

Note 5. Notes Payable

On May 23, 2018, the Company entered into a securities purchase agreement with two accredited investors, pursuant to which the Company issued $840 in unsecured promissory notes for aggregate consideration of $700 (the “May 2018 Notes”). The outstanding balance of the May 2018 Notes was to be made in nine equal monthly installments beginning July 23, 2018. The May 2018 Notes were scheduled to mature on March 23, 2019. Subject to the terms and conditions set forth in the May 2018 Notes, the Company may prepay all or any portion of the outstanding balance at any time without pre-payment penalty. Upon the occurrence of an event of default, the outstanding balance of the May 2018 Notes shall immediately increase to 120% of the outstanding balance immediately prior to the event of default and become immediately due and payable.

On June 1, 2018, the Company entered into a note purchase agreement with an accredited investor, pursuant to which the Company issued an unsecured promissory note in the amount of $3,600 (the “June 2018 Note”) for consideration of $3,000. The outstanding balance of the June 2018 Note was to be made in nine equal monthly installments beginning August 1, 2018. The June 2018 Note was scheduled to mature on April 1, 2019. Subject to the terms and conditions set forth in the June 2018 Note, the Company may prepay all or any portion of the outstanding balance at any time without pre-payment penalty. Upon the occurrence of an event of default, the outstanding balance of the June 2018 Note shall immediately increase to 120% of the outstanding balance immediately prior to the event of default and become immediately due and payable.

On December 6, 2018, the Company entered into a note purchase agreement with an accredited investor, pursuant to which the Company issued an unsecured promissory note in the amount of $598 (the “December 2018 Note”) for consideration of $500. The outstanding balance of the December 2018 Note had a maturity date of May 6, 2019 and was paid in full in March 2019. The December 2018 Note bore interest at a rate of 8% per annum and, subject to the terms and conditions set forth in the December 2018 Note, the Company was permitted to prepay all or any portion of the outstanding balance at any time without pre-payment penalty.

On January 7, 2019, and again on March 28, 2019 the Company entered into amendments to one of the May 2018 Notes. Pursuant to the amendments, the borrower has agreed to extend the maturity date of the note to July 15, 2019 and does not require the Company to make its monthly installment payments due from December 2018, through March 2019, provided that the Company makes all installment payments for the months thereafter beginning April 15, 2019. Installment payments shall be paid in cash unless the Company elects to make payments in shares of the Company’s common stock, in which case the number of shares to be issued will be based on the lowest VWAP of the Company’s common stock during the preceding twenty trading days multiplied by 70%, or any lower price made available to any other holder of the Company’s securities. In consideration of these amendments, the Company incurred extension fees payable to the borrower of $121.

On January 28, 2019, the Company entered into an amendment to the June 2018 Note. Pursuant to the amendment, the borrower has agreed to extend the maturity date to October 1, 2019 and not require the Company to make its installment payment due under the Note Purchase Agreement during January, February, and March 2019. The Company and the borrower have agreed that the Company is to pay all installment payments in cash unless both the Company and the borrower agree to make payments in shares of the Company’s common stock, in which case the number of shares to be issued will be based on the lowest intra-day trade price of the Company’s common stock during the preceding twenty trading days multiplied by 70%. In consideration of this amendment, the Company incurred an extension fee payable to the borrower of $527.

Because the January 2019 and March 2019 amendments were considered a substantive change, the Company has treated the modification as an extinguishment of debt and determined the gain or loss on the exchange of instruments. Based on the analysis performed, the Company determined that there was a gain on extinguishment of debt of $1,275.

On April 9, 2019, the Company entered an amendment to one of its May 2018 Notes to (a) forego the installment payments due on February 23, 2019 and March 23, 2019, (b) extend the maturity date of the note to August 15, 2019, and (c) include a substantial conversion feature allowing the debt holder, in its sole discretion, to have the right to convert the April 15, 2019 monthly payment, and each payment thereafter, into shares of the Company’s common stock. The number of shares to be issued will be based on the lower of: i) 70% of the lowest intra-day price of the Company’s common stock during the preceding twenty (20) trading days, or ii) any lower price that is made available to any other holder of the Company’s securities, whether by sale or conversion, on the date of a conversion notice. In exchange for the amendment, the Company compensated the holder of the note by increasing the outstanding principal due by $50. The Company accounted for this amendment as an extinguishment of debt and recorded a gain of $127.

On May 10, 2019, the original holders of the Company’s May 2018 Notes assigned and sold all notes to Oasis Capital, LLC (“Oasis Capital”). On the same date, the Company and Oasis Capital executed a letter agreement to amend the terms of the May 2018 Notes allowing Oasis Capital to convert the total outstanding principal amount of $421 into shares of the Company’s common stock, at a price equal to 70% of the lowest trading price during the 20 days preceding the conversion dates, or any lower price made available to any other holder of the Company’s securities. This amendment also eliminated the Company’s mandatory monthly amortization payments and extended the maturity of the May 2018 Notes until August 15, 2019. After such date, and within 10 business days, any outstanding balance shall be satisfied, at the Company’s election, either with cash, common stock conversion or any combination thereof. On May 15, 2019, the Company issued 10,568,087 shares of its common stock pursuant to the full conversion of the May 2018 Notes.

On May 10, 2019, the Company executed a letter agreement with the holder of the June 2018 Note to amend the terms of the June 2018 Note allowing the holder to covert the total outstanding principal amount of $3,159 into shares of the Company’s common stock, at a price equal to 70% of the lowest trading price during the 20 day period preceding the conversion dates, or any lower price made available to any other holder of the Company’s securities. This amendment also eliminates the Company’s mandatory monthly amortization payments and extends the maturity of the June 2018 Note until December 15, 2019. After such date, and within 10 business days, any outstanding balance shall be satisfied, at the Company’s election, either with: cash, common stock conversion, or any combination thereof. The Company accounted for this amendment as an extinguishment of debt and recorded a gain of $1,004.

During the three months ended September 30, 2019, the Company issued 16,654,170 shares of its common stock upon the conversion of $450 in outstanding principal by the holder and during the nine months ended September 30, 2019 issued 63,310,326 shares of its common stock upon the conversion of $1,725 in outstanding principal by the holder reducing the outstanding principal to $1,434 as of September 30, 2019.

The holder of the June 2018 Note also acquired 17,500,000 shares of the Company’s common stock on April 12, 2019, is an affiliate of the acquirer of 150 shares of the Preferred Shares acquired on April 12, 2019 and acquired 10 shares of the Preferred Shares on July 15, 2019, see Note 7 below, and are collectively subject to a maximum beneficial ownership of 9.99%. Of the 160 shares of Preferred Stock acquired by the affiliate, 115 shares are issued and outstanding as of September 30, 2019.

Notes payable consisted of the following:

	As of September 30, 2019
	Principal		Discount			Net
June 2018 Note	$	1,434	$	(495	)	$	939
Total notes payable	$	1,434	$	(495	)	$	939

	As of December 31, 2018
	Principal		Discount			Net
May 2018 Notes	$	400	$	(25	)	$	375
June 2018 Note		2,448		(1,803	)		645
December 2018 Note		351		(86	)		265
Total notes payable	$	3,199	$	(1,914	)	$	1,285

During the three months ended September 30, 2019 and 2018, the Company recorded accretion of debt discount of $946 and $0, respectively. During the nine months ended September 30, 2019 and 2018, the Company recorded accretion of debt discount of $4,768 and $0, respectively.

Common Stock, Preferred Stock and Warrants

9 Months Ended

Sep. 30, 2019

Equity [Abstract]

Common Stock, Preferred Stock and Warrants

Note 7. Common Stock, Preferred Stock and Warrants

Common stock

Equity Purchase Agreement under Form S-3

From January 1, 2019 through April 16, 2019, the Company sold shares of its common stock pursuant to an equity purchase agreement with Oasis Capital. The equity purchase agreement was entered on August 30, 2018 and was amended on November 30, 2018, whereby the Company could issue and sell to Oasis Capital from time to time up to $50,000 of the Company’s common stock that was registered with the SEC under a registration statement on Form S–3. Subject to the terms of the equity purchase agreement, the Company provided notice (a “Put Notice”) requiring Oasis Capital to purchase a number of shares (the “Put Shares”) of the common stock equal to the lesser of $500 and 200% of the average trading volume of the common stock in the ten trading days immediately preceding the date of such Put Notice. The terms also provided the purchase price for such Put Shares to be the lowest traded price on a principal market for any trading day during the five trading days either following or beginning on the date on which Oasis Capital receives delivery of the Put Shares, multiplied by 95.0%.

During the three and nine months ended September 30, 2019, the Company issued 23,900,000 and 67,000,000 shares of its common stock in exchange for $1,575 and $3,731, respectively. Of the proceeds received during the three months ended March 31, 2019, $354 was applied directly as payment against the December 2018 Note.

On April 16, 2019, the Company became ineligible to issue shares under its registration statement on Form S-3 as the aggregate market value of the Company’s common stock held by non-affiliates was below the regulatory threshold of $75,000. In connection with this ineligibility, the equity purchase agreement was terminated.

Equity Purchase Agreement under Form S-1

On June 3, 2019, the Company entered into an equity purchase agreement with Oasis Capital, whereby the Company shall have the right, but not the obligation, to direct Oasis Capital to purchase shares of the Company’s common stock (the “New Put Shares”) in an amount in each instance up to the lesser of $1,000 or 250% of the average daily trading volume by delivering a notice to Oasis Capital (the “New Put Notice”). The purchase price (the “Purchase Price”) for the New Put Shares shall equal 95% of the one lowest daily volume weighted average price on a principal market during the five trading days immediately following the date Oasis receives the New Put Shares via DWAC associated with the applicable New Put Notice (the “Valuation Period”). The closing of a New Put Notice shall occur within one trading day following the end of the respective Valuation Period, whereby (i) Oasis shall deliver the Investment Amount (as defined below) to the Company by wire transfer of immediately available funds and (ii) Oasis shall return surplus New Put Shares if the value of the New Put Shares delivered to Oasis causes the Company to exceed the maximum commitment amount. The Company shall not deliver another New Put Notice to Oasis within ten trading days of a prior New Put Notice. The “Investment Amount” means the aggregate Purchase Price for the New Put Shares purchased by Oasis, minus clearing costs payable to Oasis’s broker or to the Company’s transfer agent for the issuance of the New Put Shares. The shares issuable under the equity purchase agreement are registered with the SEC under a registration statement on Form S-1 that was declared effective on June 25, 2019 and are subject to a maximum beneficial ownership by Oasis Capital of 9.99%.

During the three months ended September 30, 2019, the Company issued 40,000,000 shares of its common stock in exchange for $1,442, net of deferred offering costs of $71. No shares were issued under the Form S-1 prior to July 1, 2019.

Other Common Stock Sales and Issuances

On April 12, 2019, the Company entered into a purchase agreement with an accredited investor whereby it sold 17,500,000 shares of its common stock for $525 pursuant to the Company’s then-effective registration statement on Form S-3. The holder of these shares is also the holder of the June 2018 Note and an affiliate of the acquirer of 150 shares of the Preferred Shares acquired on April 12, 2019 described below.

During the three months ended March 31, 2019, the Company issued 160,500 shares of its common stock to consultants in exchange for services. These services were valued based upon the value of the shares issued of $60. No shares were issued to consultants during the second and third quarters of 2019. During the three and nine months ended September 30, 2018, the Company issued 360,500 and 1,539,051 shares of its common stock, respectively, to consultants in exchange for services. These services were valued based upon the value of the shares issued of $322 and $2,036, respectively.

In connection with the termination of its management agreements, see Note 9 below, the Company issued 10,250,000

shares of its common stock to acquire 2,000 S9 miners from its former partners. The S9 miners were valued at $312, based on the trading value of the Company’s common stock on the date each management agreement was terminated.

Preferred Stock

On January 11, 2019, the Company’s Board of Directors approved the authorization of 10,000 shares of Series B Preferred Stock with a par value of $0.001 (“Series B Preferred Shares”). The holders of the Series B Preferred Shares shall be entitled to receive, when, as, and if declared by the Board of Directors of the Company, out of funds legally available for such purpose, dividends in cash at the rate of 12% of the stated value per annum on each Series B Preferred Share. Such dividends shall be cumulative and shall accrue without interest from the date of issuance of the respective share of the Series B Preferred Shares. Each holder shall also be entitled to vote on all matters submitted to stockholders of the Company and shall be entitled to 55,000 votes for each Series B Preferred Share owned at the record date for the determination of stockholders entitled to vote on such matter or, if no such record date is established, at the date such vote is taken or any written consent of stockholders is solicited. In the event of a liquidation event, any holders of the Series B Preferred Shares shall be entitled to receive, for each Series B Preferred Shares, the stated value in cash out of the assets of the Company, whether from capital or from earnings available for distribution to its stockholders. The Series B Preferred Shares are not convertible into shares of the Company’s common stock.

On April 12, 2019, the Company’s Board of Directors approved the authorization of 200 shares of Series C Convertible Preferred Stock with a par value of $0.001 and a stated value of $10,000 per share (“Preferred Shares”). The holders of the Preferred Shares have no voting rights, receive no dividends, and are entitled to a liquidation preference equal to the stated value. At any time prior to the one-year anniversary from the issuance date, the Company may redeem the Preferred Shares at 1.4 times the stated value, following which the Company may redeem the Preferred Shares at 1.2 times the stated value.

Each Preferred Share is convertible into shares of the Company’s common stock in an amount equal to the greater of: (a) 200,000 shares of common stock or (b) the amount derived by dividing the stated value by the product of 0.7 times the market price of the Company’s common stock, defined as the lowest trading price of the Company’s common stock during the ten day period preceding the conversion date. The holder may not convert any Preferred Shares if the total amount of shares held, together with holdings of its affiliates, following a conversion exceeds 9.99% of the Company’s common stock. The Company has accounted for the beneficial conversion feature of the Preferred Shares, convertible at 0.7 times the market price of the Company’s common stock, as a deemed dividend of $859 for the three months ended June 20, 2019 and $46 for the three months ended September 30, 2019, measured as the difference between the conversion price of the Preferred Shares and the fair value of the underlying common stock.

The common shares issued upon conversion have been registered under the Company’s then-effective registration statement on Form S-3. On April 12, 2019, the Company sold 190 Preferred Shares for $1,890, net of issuance costs and on July 15, 2019 sold 10 Preferred Shares for $100. During the three months ended June 30, 2019, holders of the preferred shares converted 50 of their Preferred Shares into 14,077,092 shares of common stock. During the three months ended September 30, 2019, the holder of the preferred stock converted 35 of their shares Preferred Shares into 13,528,575 shares of common stock. Given the right of redemption is solely at the option of the Company, the Preferred Shares are not considered mandatorily redeemable, and as such are classified in shareholders’ equity on the Company’s condensed consolidated balance sheet.

Warrants

The following table summarizes information about shares issuable under warrants outstanding during the nine months ended September 30, 2019:

	Warrant shares outstanding			Weighted average exercise price		Weighted average remaining life		Intrinsic value
Outstanding at January 1, 2019		5,477,975		$	1.01
Issued		-			-
Exercised		(4,000,000	)	$	1.12
Expired or cancelled		(1,477,975	)	$	0.72
Outstanding and exercisable at September 30, 2019		-		$	-		-	$	-

On June 5, 2019, the Company entered into an agreement with a holder of a warrant for 10,000 shares of common stock, whereby the holder agreed to sell the warrant back to the Company for a nominal amount. The Company subsequently cancelled the warrant.

On May 9, 2019, the Company entered into a modification agreement with the holder of six separate warrants. Under the terms of the initial warrant agreements, the holder was entitled to purchase 4,000,000 shares of the Company’s common stock at prices of between $0.50 per share and $2.00 per share at various times through September 2022. Under the terms of the modification agreement, the holder was permitted to exercise all 4,000,000 warrants at a price of $0.03 per share, or $120. The Company accounted for this modification as a down-round feature under the guidance of ASC 260-10-30, whereby the change in fair value of the warrants before and after the down-round was triggered was recorded as a deemed dividend in the amount of $101.

During the three months ended September 30, 2019, the Company entered into agreements with three holders of warrants for 1,450,000 shares of common stock, whereby the holders agreed to sell the warrants back to the Company for $14. The Company subsequently canceled the warrants.

Commitments and Contingencies

9 Months Ended

Sep. 30, 2019

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Note 9. Commitments and Contingencies

Bitcoin Mining Agreements

On May 20, 2019, the Company entered into an agreement with a third-party consultant whereby the consultant would advise and consult with the Company on certain business and financial matters relating to crypto-currency mining. The Company engaged the consultant to: (1) assist in locating at least 5 acres of real property in Georgia within close proximity to a fully operational electric substation with a minimum of 15 MW of available capacity, subject to approval by the power company, (2) negotiate a power rate between the Company and a power company, (3) assist in the identification, purchase, and delivery of transformers required to serve the containerized mining systems, (4) successfully install the aforementioned transformers, and (5) obtain an electrical permit and successfully inspect all electrical infrastructure between the container and substation. The consulting agreement was valued at $400 and such amount was transferred to a third-party escrow account, payable to the consultant upon successful achievement of defined milestones. Upon achievement, the value of the milestone is recorded as a component of general and administrative expenses with an offsetting reduction to prepaid expense. During the second and third quarters of 2019, $200 and $50 in milestone achievements were earned, respectively, and the remaining $150 is recorded as a prepaid expense as of September 30, 2019.

On October 23, 2018, the Company entered into a hosting agreement (“Colorado Hosting Agreement”) with a hosting facility in Colorado, whereby the service provider provides a facility to host Bitcoin computing servers. The Colorado Hosting Agreement has been amended several times and currently provides for the hosting of 1,200 miners, a reduction of a security deposit from $204 to $66 and a termination date of December 3, 2020. Because the price of Bitcoin steadily decreased in 2018 and throughout the first quarter 2019, the Company decided it was not economically responsible to commence mining under this hosting arrangement until May 2019 when Bitcoin mining economics started to improve.

On May 10, 2019, the Company, entered into a hosting agreement (“Ohio Hosting Agreement”) relating to the generation of Bitcoin mining revenues at a facility located in Coshocton, Ohio (the “Facility”) for a term that is the earlier of (i) two years, or (ii) when the parties determine that the Bitcoin mining business at the Facility is uneconomical. The Ohio Hosting Agreement was amended in September 2019 and currently provides for the hosting of 576 miners and a reduction of the security deposit from $240 to $80. Under the terms of the Ohio Hosting Agreement, the Company agreed to provide the necessary hardware to conduct Bitcoin mining at the Facility. The service provider agreed, among other things, to provide necessary hosting capacity, equipment, infrastructure and electricity to operate the mining hardware at the Facility. A third-party operator agreed, among other things, to and maintain the Facility in accordance with prudent industry standards and to maintain the hardware.

The service provider is required to disburse on a monthly basis: (i) the total electricity costs to the utility provider; (ii) 10% of Gross Profits (as defined in the Ohio Hosting Agreement) to the operator; (iii) the Net Profits (as defined in the Ohio Hosting Agreement) such that 10% of all Gross Profits (as defined in the Ohio Hosting Agreement) shall be paid to the Company, 40% of all Gross Profits shall be paid to service provider, and 40% of all Gross Profits will be paid into the Security Deposit account until such time as the Security Deposit is paid in full; and (iv) subsequent to the satisfaction of the Security Deposit, Net Profits equally between the Company and the service provider.

During the three and nine months ended September 30, 2019, the Company recognized $78 and $148 under these agreements, respectively, a portion of which was accounted for under the management agreements that were terminated during the three months ended September 30, 2019.

Management Agreements

On May 2, 2019, the Company entered into amended management agreements with two accredited investors, Deep South Mining LLC and BDLM, LLC (the “Users”). The Users’ miners were reconnected, and mining Bitcoin was resumed upon execution of these agreements. Due to wear and tear, the parties acknowledge the Users’ Bitcoin Hardware consist of 1,800 Bitmain Antminer S9 mining computers, collectively.

The Company entered into two Settlement and Termination Agreements (the “Settlement Agreements”) to its existing management agreements with the Users on August 31, 2019. Under the terms of the Settlement Agreements, the Company will pay the Users a percentage of profits (“User Distribution”) of Bitcoin mining as defined in the Settlement Agreements for a period not to exceed 16 months. The estimated present value of the User Distributions of $337 was recorded as termination expense with an offsetting liability on August 31, 2019. Since two of the components of the User Distribution, Bitcoin price and Difficulty, as defined in the Settlement Agreements, are based on market conditions, the liability will be marked-to-market on a quarterly basis and any changes will be recorded in the statement of operations. As of September 30, 2019, the Company recognized a gain on the change in the fair value of $135 based on a reduction of Bitcoin price and an increase in Difficulty, reducing the liability to $194.

Beginning on December 31, 2019 and for a period of 12 months thereafter and conditioned on other events as defined in the Settlement Agreements, the parties may unilaterally terminate the Settlement Agreements for a one-time payment of $270,000, collectively, by the Company. Additionally, the Company acquired the 1,800 Antminer S-9 Bitcoin miners owned by the Users for 9,000,000 restricted shares of the Company’s common stock valued at $279.

On September 30, 2019, the Company terminated its remaining management agreement with a third party for a one-time payment of $27 and the acquisition of 200 Antminer S-9 Bitcoin miners owned by the third party for 1,250,000 restricted shares of the Company’s commons stock valued at $33.

On August 14, 2018, the Company entered into a collaborative venture with a third-party cryptocurrency miner to develop a fully contained crypto currency mining pod (the “POD5 Agreement”). Pursuant to the POD5 Agreement, the Company will assist with the design and development of the pods (“POD5 containers”). The Company will retain naming rights to the pods and receive royalty payments from the third party in exchange for providing capital as well as engineering and design expertise. During the three and nine months ended September 30, 2019, the Company received royalties and recognized revenue of $7 under this agreement.

Legal

On August 28, 2019, a shareholder derivative action was filed by shareholder Tyler Tomczak against the Company and certain of its directors, officers and shareholders in New York state court, alleging breach of fiduciary duties, waste and unjust enrichment and seeking declaratory relief and damages (the “Tomczak Derivative Action”). The underlying allegations in the Tomczak Derivative Action largely repeat the allegations of wrongdoing in the 2018 Securities Class Actions (as defined below). The Company-related defendants’ time to respond to the Tomczak Derivative Action has been extended until December 31, 2019.

On September 11, 2019, a shareholder derivative action was filed by shareholder Arthur Aviles against the Company and certain of its directors, officers and shareholders in New York state court, alleging breach of fiduciary duties, waste and unjust enrichment and seeking declaratory relief and damages (the “Aviles Derivative Action”). The underlying allegations in the Aviles Derivative Action largely repeat the allegations of wrongdoing in the 2018 Securities Class Actions. The Company-related defendants’ time to respond to the Aviles Derivative Action has been extended until December 31, 2019.

In September 2018 and October 2018, various shareholders of the Company filed putative class action lawsuits against the Company, its then former Chief Executive Officer and certain of its individual officers and shareholders, alleging violations of federal securities laws and seeking damages (the “2018 Securities Class Actions”). The 2018 Securities Class Action followed and referenced the allegations made against the Company’s then former Chief Executive Officer and others in the SEC Action. The first putative class action lawsuit was filed on September 28, 2018, in the United States District Court for the District of New Jersey, and alleges that the named defendants engaged in a pump-and-dump scheme to artificially inflate the price of the Company’s stock and that, as a result, defendants’ statements about the Company’s business and prospects were materially false and misleading and/or lacked a reasonable basis at relevant times. The second putative class action was filed on October 9, 2018, in the United States District Court for the Southern District of New York and makes similar allegations. On May 28, 2019, the parties to the Class Actions entered into a binding settlement term sheet, and on September 24, 2019, the parties entered into a stipulation of settlement. On August 7, 2019, the lead plaintiff in the first class action filed a notice and order of voluntary dismissal with prejudice, and on October 11, 2019, the lead plaintiff in the second class action filed an unopposed motion for preliminary approval of the proposed class action settlement.

On January 24, 2017, the Company was served with a summons and complaint filed by plaintiff shareholder Atul Ojha in New York state court against certain officers and directors of the Company, and naming the Company as a nominal defendant. The lawsuit is styled as a derivative action (the “Ojha Derivative Action”) and was originally filed (but not served on any defendant) on October 15, 2016. The Ojha Derivative Action substantively alleges that the defendants, collectively or individually, inadequately managed the business and assets of the Company resulting in the deterioration of the Company’s financial condition. The Ojha Derivative Action asserts claims including, but not limited to, breach of fiduciary duties, unjust enrichment and waste of corporate assets. On February 27, 2017, the parties to the Ojha Derivative Action executed a stipulated stay of proceedings pending resolution of a class action filed in 2016 (the “2016 Securities Class Action”). Shortly after issuance of the February 27, 2018, ruling dismissing the 2016 Securities Class Action, the parties to the Ojha Derivative Action agreed to extend the stay indefinitely, with the plaintiff having the option to vacate the stay on thirty days’ notice. On October, 28, 2019, the parties agreed to extend the stay indefinitely, with the plaintiff having the option to vacate the stay on thirty days’ notice. Should the plaintiff seek to vacate the stay, the Company will address and defend the Ojha Derivative Action.

On December 12, 2018, a shareholder derivative action was filed by shareholder Bob Thomas against the Company and certain of its current and former directors, officers and shareholders in New York state court, alleging breach of fiduciary duties, unjust enrichment, abuse of control, gross mismanagement, and waste and seeking declaratory relief and damages (the “Thomas Derivative Action”). The underlying allegations in the Thomas Derivative Action largely repeat the allegations of wrongdoing in the 2018 Securities Class Actions. Based on communications between the Company’s counsel and plaintiff’s counsel in the Thomas Derivative Action, plaintiff intended to seek consolidation of this case with the Ojha Derivative Action, and then to stay the consolidated derivative action pending resolution of the 2018 Securities Class Actions. The Company-related defendants’ time to respond to the Thomas Derivative Action has been extended until thirty days after the Court rules on plaintiff’s motion. On October 18, 2019 counsel for the plaintiffs in the Ojha Derivative Action advised the Company that plaintiffs had filed such a motion, and the court had denied it, but neither the motion nor the decision were ever served on the Company. Counsel for the Company is currently engaged in discussions with the counsel for plaintiffs about setting a new deadline for the Company-related defendants to respond to the complaint.

On October 31, 2019, the Company, and its current officers and directors, received subpoenas from the SEC requesting information, including but not limited to, with respect to risk factors contained in certain of the Company’s filings with the SEC, any investigations by any government agency into Robert B. Ladd and certain other matters related to the Company’s securities. The time period covered by the subpoenas is January 1, 2019 through the date of issuance of the subpoenas. The Company and its current officers and directors are cooperating with the SEC’s request. The Company is unable to predict what action, if any, might be taken in the future by the SEC or any other governmental authority as a result of the subpoenas.

The Company believes the claims in the actions filed against the Company are without merit and intends to vigorously defend against these actions.

Summary of Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2019

Accounting Policies [Abstract]

Principles of Consolidation

Principles of consolidation

The unaudited condensed consolidated financial statements include the accounts of MGT and MGT Sweden AB. All intercompany transactions and balances have been eliminated.

Use of Estimates and Assumptions and Critical Accounting Estimates and Assumptions

Use of estimates and assumptions and critical accounting estimates and assumptions

Prior Period Financial Statement Correction of an Immaterial Misstatement

Prior Period Financial Statement Correction of an Immaterial Misstatement

The effect on these revisions on the Company’s consolidated balance sheet as of December 31, 2018 is as follows:

	As previously reported at December 31, 2018			Adjustment			As revised at December 31, 2018
Notes payable, net of discount	$	1,851		$	(566	)	$	1,285
Total current liabilities		2,398			(566	)		1,832
Total liabilities		2,398			(566	)		1,832
Accumulated deficit		(405,285	)		566			(404,719	)
Total stockholders’ deficit		(1,875	)		566			(1,309	)

Revenue Recognition

Revenue recognition

Property and Equipment

Property and Equipment

Income Taxes

Income taxes

Loss Per Share

Loss per share

Stock-based Compensation

Stock–based compensation

Gain (Loss) On Modification/extinguishment of Debt

Gain (Loss) on Modification/Extinguishment of Debt

Recent Accounting Pronouncements

Recent accounting pronouncements

On January 1, 2019, the Company adopted Topic 842 and made the following elections:

	●	The Company did not elect the hindsight practical expedient, for all leases.
	●	The Company elected the package of practical expedients to not reassess prior conclusions related to contracts containing leases, lease classification and initial direct costs for all leases.
	●	In March 2018, the FASB approved an optional transition method that allows companies to use the effective date as the date of initial application on transition. The Company elected this transition method, and as a result, will not adjust its comparative period financial information or make the newly required lease disclosures for periods before the effective date.
	●	The Company elected to not separate lease and non-lease components, for all leases.

Management's Evaluation of Subsequent Events

Management’s evaluation of subsequent events

Summary of Significant Accounting Policies (Details Narrative) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended		12 Months Ended
	Sep. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	Jan. 02, 2019
Summary Of Significant Accounting Policies [Line Items]
Notes payable, net of discount	$ (939)				$ (939)		$ (1,285)
Accretion of debt discount	(946)				(4,768)
Gain on extinguishment of debt					2,406
Right of use asset	32				32			$ 87
Lease liability	$ 28				28			$ 84
Cumulative adjustment to accumulated deficit		$ 3			$ 3
Restricted Stock Awards [Member] \| Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Vesting period					12 months
Restricted Stock Awards [Member] \| Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Vesting period					24 months
Preferred Stock [Member]
Summary Of Significant Accounting Policies [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	68,452,381				68,452,381
Cumulative adjustment to accumulated deficit
Warrants [Member]
Summary Of Significant Accounting Policies [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount			6,227,975			6,227,975
Stock Options [Member]
Summary Of Significant Accounting Policies [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	6,000,000		6,000,000		6,000,000	6,000,000
Unvested Restricted Stock [Member]
Summary Of Significant Accounting Policies [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	850,000		3,555,000		850,000	3,555,000
Conversion of Convertible Debt [Member]
Summary Of Significant Accounting Policies [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	97,575,510				97,575,510
Adjustment [Member]
Summary Of Significant Accounting Policies [Line Items]
Notes payable, net of discount							566
Accretion of debt discount							14
Gain on extinguishment of debt							$ 580

Notes Payable (Details Narrative) $ in Thousands												3 Months Ended			9 Months Ended
Notes Payable (Details Narrative) $ in Thousands	Jul. 15, 2019 shares	May 15, 2019 shares	May 10, 2019 USD ($) Integer	Apr. 12, 2019 shares	Apr. 09, 2019 USD ($) Integer	Mar. 28, 2019 USD ($)	Jan. 28, 2019 USD ($)	Jan. 07, 2019 USD ($)	Dec. 06, 2018 USD ($)	Jun. 01, 2018 USD ($)	May 23, 2018 USD ($)	Sep. 30, 2019 USD ($) shares	Sep. 30, 2018 USD ($) shares	Jun. 30, 2018 USD ($) shares	Sep. 30, 2019 USD ($) shares	Sep. 30, 2018 USD ($)	Dec. 31, 2018 USD ($) shares
Convertible principal amount												$ 1,434			$ 1,434		$ 3,199
Vwap percentage of common stock				9.99%
Gain on extinguishment of debt															$ 2,406
Debt conversion, shares issued \| shares												16,654,170			63,310,326
Debt conversion												$ 450			$ 1,725
Stock issued during period shares \| shares															43,100,000
Preferred stock, shares outstanding \| shares
Accretion of debt discount												$ 946		$ 0	$ 4,768	$ 455
Common Stock [Member]
Stock issued during period shares \| shares													1,250,000	750,000
Preferred Stock [Member]
Stock issued during period shares \| shares	10			190
May 2018 Notes [Member]
Notes payable			$ 421
Vwap percentage of common stock			70.00%
Threshold trading days \| Integer			20
Debt instrument conversion description			On May 10, 2019, the original holders of the Company's May 2018 Notes assigned and sold all notes to Oasis Capital, LLC (“Oasis Capital”). On the same date, the Company and Oasis Capital executed a letter agreement to amend the terms of the May 2018 Notes allowing Oasis Capital to convert the total outstanding principal amount of $421 into shares of the Company's common stock, at a price equal to 70% of the lowest trading price during the 20 days preceding the conversion dates, or any lower price made available to any other holder of the Company’s securities. This amendment also eliminated the Company’s mandatory monthly amortization payments and extended the maturity of the May 2018 Notes until August 15, 2019. After such date, and within 10 business days, any outstanding balance shall be satisfied, at the Company's election, either with cash, common stock conversion or any combination thereof. On May 15, 2019, the Company issued 10,568,087 shares of its common stock pursuant to the full conversion of the May 2018 Notes.
Threshold consecutive trading days \| Integer			10
Debt conversion, shares issued \| shares		10,568,087
June 2018 Notes [Member]
Notes payable			$ 3,159
Vwap percentage of common stock			70.00%
Gain on extinguishment of debt			$ 1,004
Threshold trading days \| Integer			20
Debt instrument conversion description			On May 10, 2019, the Company executed a letter agreement with the holder of the June 2018 Note to amend the terms of the June 2018 Note allowing the holder to covert the total outstanding principal amount of $3,159 into shares of the Company's common stock, at a price equal to 70% of the lowest trading price during the 20 day period preceding the conversion dates, or any lower price made available to any other holder of the Company's securities. This amendment also eliminates the Company's mandatory monthly amortization payments and extends the maturity of the June 2018 Note until December 15, 2019. After such date, and within 10 business days, any outstanding balance shall be satisfied, at the Company’s election, either with: cash, common stock conversion, or any combination thereof. The Company accounted for this amendment as an extinguishment of debt and recorded a gain of $1,004. During the three months ended September 30, 2019, the Company issued 16,654,170 shares of its common stock upon the conversion of $450 in outstanding principal by the holder and during the nine months ended September 30, 2019 issued 63,310,326 shares of its common stock upon the conversion of $1,725 in outstanding principal by the holder reducing the outstanding principal to $1,434 as of September 30, 2019.
Threshold consecutive trading days \| Integer			10
Beneficial ownership percentage				9.99%
June 2018 Notes [Member] \| Common Stock [Member]
Stock issued during period shares \| shares				17,500,000
June 2018 Notes [Member] \| Preferred Stock [Member]
Stock issued during period shares \| shares	10			150											160
Preferred stock, shares outstanding \| shares												115			115
January 2019 and March 2019 Amendments [Member]
Gain on extinguishment of debt															$ 1,275
May 2018 Notes Amendment [Member]
Notes payable					$ 50
Maturity date of notes					Aug. 15, 2019
Vwap percentage of common stock					70.00%
Gain on extinguishment of debt					$ 127
Debt extinguishment amendment description					On April 9, 2019, the Company entered an amendment to one of its May 2018 Notes to (a) forego the installment payments due on February 23, 2019 and March 23, 2019, (b) extend the maturity date of the note to August 15, 2019, and (c) include a substantial conversion feature allowing the debt holder, in its sole discretion, to have the right to convert the April 15, 2019 monthly payment, and each payment thereafter, into shares of the Company's common stock. The number of shares to be issued will be based on the lower of: i) 70% of the lowest intra-day price of the Company's common stock during the preceding twenty (20) trading days, or ii) any lower price that is made available to any other holder of the Company's securities, whether by sale or conversion, on the date of a conversion notice. In exchange for the amendment, the Company compensated the holder of the note by increasing the outstanding principal due by $50. The Company accounted for this amendment as an extinguishment of debt and recorded a gain of $127.
Threshold trading days \| Integer					20
May 2018 Notes [Member]
Convertible principal amount											$ 840						$ 400
Notes payable											$ 700
Maturity date of notes											Mar. 23, 2019
Debt instrument, description of event of default											Upon the occurrence of an event of default, the outstanding balance of the May 2018 Notes shall immediately increase to 120% of the outstanding balance immediately prior to the event of default and become immediately due and payable.
June 2018 Note [Member]
Convertible principal amount										$ 3,600		$ 1,434			$ 1,434		2,448
Notes payable										$ 3,000
Maturity date of notes										Apr. 01, 2019
Debt instrument, description of event of default										Upon the occurrence of an event of default, the outstanding balance of the June 2018 Note shall immediately increase to 120% of the outstanding balance immediately prior to the event of default and become immediately due and payable.
December 2018 Note [Member]
Convertible principal amount									$ 598								$ 351
Notes payable									$ 500
Maturity date of notes							Oct. 01, 2019		May 06, 2019
Debt instrument accrued interest rate									8.00%
Vwap percentage of common stock							70.00%
Fees payable to borrower							$ 527
May 2018 Notes [Member]
Maturity date of notes						Jul. 15, 2019		Jul. 15, 2019
Vwap percentage of common stock						70.00%		70.00%
Fees payable to borrower						$ 121		$ 121

Common Stock, Preferred Stock and Warrants (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands							3 Months Ended						4 Months Ended	9 Months Ended
	Jul. 15, 2019	Jun. 03, 2019	May 09, 2019	Apr. 16, 2019	Apr. 12, 2019	Jan. 11, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Apr. 16, 2019	Sep. 30, 2019	Sep. 30, 2018	Jun. 20, 2019	Jun. 05, 2019	Dec. 31, 2018	Nov. 30, 2018
Debt conversion, shares issued							16,654,170							63,310,326
Debt conversion							$ 450							$ 1,725
Repayment of note payable and interest through the issuance of shares under the equity purchase agreement														$ 354	$ 366
Stock issued during period shares														43,100,000
Stock issued during period, value										$ 0
Value of shares issued for services										$ 322	$ 875	$ 839
Preferred stock, shares authorized							8,499,800							8,499,800
Preferred stock, voting rights					The holders of the Preferred Shares have no voting rights, receive no dividends, and are entitled to a liquidation preference equal to the stated value. At any time prior to the one-year anniversary from the issuance date, the Company may redeem the Preferred Shares at 1.4 times the stated value, following which the Company may redeem the Preferred Shares at 1.2 times the stated value.
Percentage of average trading volume of common stock					9.99%
Conversion of stock shares converted					200,000
Deemed dividend							$ 46							$ 46		$ 859
Conversion of stock, description					The Company has accounted for the beneficial conversion feature of the Preferred Shares, convertible at 0.7 times the market price of the Company's common stock, as a deemed dividend of $859, measured as the difference between the conversion price of the Preferred Shares and the fair value of the underlying common stock.
Warrant outstanding																	10,000
Warrants issued							1,450,000
Warrants returned							$ 14
Consultants [Member]
Number of shares issued for services									160,500	360,500					1,539,051
Value of shares issued for services									$ 60	$ 322					$ 2,036
Common Stock [Member]
Stock issued during period shares										1,250,000	750,000
Stock issued during period, value										$ 1	$ 1
Number of shares issued for services										360,500	730,000	448,551
Value of shares issued for services										$ 0		$ 1
Preferred Stock [Member]
Stock issued during period shares	10				190
Stock issued during period, value	$ 100				$ 1,890
Number of shares issued for services
Value of shares issued for services
Preferred Stock [Member]
Stock issued during period shares								50
Stock issued during period, value								$ 14,077,092
Common Stock [Member]
Stock issued during period shares							35
Stock issued during period, value							$ 13,528,575
Series B Preferred Stock [Member]
Preferred stock, shares authorized							10,000							10,000				0
Preferred stock, par value							$ 0.001							$ 0.001				$ 0.001
Series B Preferred Stock [Member] \| Board of Directors [Member]
Preferred stock, shares authorized						10,000
Preferred stock, par value						$ 0.001
Preferred stock, dividend rate, percentage						12.00%
Preferred stock, voting rights						Each holder shall also be entitled to vote on all matters submitted to stockholders of the Company and shall be entitled to 55,000 votes for each Series B Preferred Share owned at the record date for the determination of stockholders entitled to vote on such matter or, if no such record date is established, at the date such vote is taken or any written consent of stockholders is solicited.
Series C Convertible Preferred Stock [Member]
Preferred stock, shares authorized					200
Preferred stock, par value					$ 0.001
Preferred stock stated value per share					$ 10,000
Equity Purchase Agreement [Member]
Debt conversion, shares issued							23,900,000							67,000,000
Debt conversion							$ 1,575							$ 3,731
Stock issued during period shares							40,000,000
Stock issued during period, value							$ 1,442
Equity Purchase Agreement [Member] \| Non-Affiliates [Member]
Debt instrument regulatory threshold				$ 75,000
Equity Purchase Agreement [Member] \| December 2018 Note [Member]
Repayment of note payable and interest through the issuance of shares under the equity purchase agreement														354
Net of deferred offering costs							$ 71							$ 71
Purchase Agreement [Member] \| Common Stock [Member]
Stock issued during period shares					17,500,000
Stock issued during period, value					$ 525
Purchase Agreement [Member] \| Preferred Stock [Member]
Stock issued during period shares					150
Management Agreements [Member]
Stock issued during period shares															1,025,000
Shares acquire from former partners															2,000
Shares acquire from former partners, value															$ 312
Initial Warrant Agreements [Member]
Warrants to purchase shares of common stock			4,000,000
Warrant exercise price			$ 0.50
Warrant, exercise price, increase			$ 2.00
Warrant description			Under the terms of the initial warrant agreements, the holder was entitled to purchase 4,000,000 shares of the Company's common stock at prices of between $0.50 per share and $2.00 per share at various times through September 2022. Under the terms of the modification agreement, the holder was permitted to exercise all 4,000,000 warrants at a price of $0.03 per share, or $120. The Company accounted for this modification as a down-round feature under the guidance of ASC 260-10-30, whereby the change in fair value of the warrants before and after the down-round was triggered was recorded as a deemed dividend in the amount of $101.
Modification Agreement [Member]
Warrant exercise price			$ 0.03
Exercise of warrant			$ 4,000,000
Modification Agreement [Member] \| Minimum [Member]
Deemed dividend			$ 101
Oasis Capital [Member] \| Equity Purchase Agreement [Member]
Equity purchase agreement description													The equity purchase agreement was entered on August 30, 2018 and was amended on November 30, 2018, whereby the Company could issue and sell to Oasis Capital from time to time up to $50,000 of the Company’s common stock that was registered with the SEC under a registration statement on Form S-3. Subject to the terms of the equity purchase agreement, the Company provided notice (a "Put Notice") requiring Oasis Capital to purchase a number of shares (the "Put Shares") of the common stock equal to the lesser of $500 and 200% of the average trading volume of the common stock in the ten trading days immediately preceding the date of such Put Notice. The terms also provided the purchase price for such Put Shares to be the lowest traded price on a principal market for any trading day during the five trading days either following or beginning on the date on which Oasis Capital receives delivery of the Put Shares, multiplied by 95.0%.
Number of shares available for issuance, value																			$ 50,000
Oasis Capital [Member] \| Equity Purchase Agreement [Member] \| Put Shares [Member] \| Maximum [Member]
Number of shares available for issuance, value				$ 500									$ 500
Oasis Capital [Member] \| Equity Purchase Agreement Under Form S-1 [Member]
Equity purchase agreement description		On June 3, 2019, the Company entered into an equity purchase agreement with Oasis Capital, whereby the Company shall have the right, but not the obligation, to direct Oasis Capital to purchase shares of the Company's common stock (the "New Put Shares") in an amount in each instance up to the lesser of $1,000 or 250% of the average daily trading volume by delivering a notice to Oasis Capital (the "New Put Notice"). The purchase price (the "Purchase Price") for the New Put Shares shall equal 95% of the one lowest daily volume weighted average price on a principal market during the five trading days immediately following the date Oasis receives the New Put Shares via DWAC associated with the applicable New Put Notice (the "Valuation Period"). The closing of a New Put Notice shall occur within one trading day following the end of the respective Valuation Period, whereby (i) Oasis shall deliver the Investment Amount (as defined below) to the Company by wire transfer of immediately available funds and (ii) Oasis shall return surplus New Put Shares if the value of the New Put Shares delivered to Oasis causes the Company to exceed the maximum commitment amount. The Company shall not deliver another New Put Notice to Oasis within ten trading days of a prior New Put Notice. The "Investment Amount" means the aggregate Purchase Price for the New Put Shares purchased by Oasis, minus clearing costs payable to Oasis's broker or to the Company's transfer agent for the issuance of the New Put Shares. The shares issuable under the equity purchase agreement are registered with the SEC under a registration statement on Form S-1 that was declared effective on June 25, 2019 and are subject to a maximum beneficial ownership by Oasis Capital of 9.99%.
Oasis Capital [Member] \| Equity Purchase Agreement Under Form S-1 [Member] \| New Put Shares [Member] \| Maximum [Member]
Number of shares available for issuance, value		$ 1,000

Common Stock, Preferred Stock and Warrants - Summary of Warrant Outstanding (Details) - Warrants [Member]	9 Months Ended
	Sep. 30, 2019 USD ($) $ / shares shares
Warrant shares outstanding, beginning \| shares	5,477,975
Warrant shares outstanding, Issued \| shares
Warrant shares outstanding, Exercised \| shares	(4,000,000)
Warrant shares outstanding, Expired or cancelled \| shares	(1,477,975)
Warrant shares outstanding, ending \| shares
Warrant shares exercisable, ending \| shares
Weighted average exercise price, beginning \| $ / shares	$ 1.01
Weighted average exercise price, Issued \| $ / shares
Weighted average exercise price, Exercised \| $ / shares	1.12
Weighted average exercise price, Expired or cancelled \| $ / shares	0.72
Weighted average exercise price, ending \| $ / shares
Weighted average exercise price Exercisable, ending \| $ / shares
Weighted average remaining life, Outstanding	0 years
Weighted average remaining life, Exercisable	0 years
Intrinsic value outstanding, ending \| $
Intrinsic value exercisable, ending \| $

Stock-Based Compensation - Schedule of Stock Options Activity (Details)	9 Months Ended
	Sep. 30, 2019 USD ($) $ / shares shares
Options Outstanding, Granted \| shares	100,000
Weighted Average Grant Date Fair Value Outstanding, Beginning Balance	$ 0.04
Stock Option [Member]
Options Outstanding, Beginning Balance \| shares	6,000,000
Options Outstanding, Granted \| shares
Options Outstanding, Exercised \| shares
Options Outstanding, Forfeited/Cancelled \| shares
Options Outstanding, Ending Balance \| shares	6,000,000
Options Exercisable, Ending Balance \| shares	6,000,000
Weighted Average Exercise Price Outstanding, Beginning Balance	$ 0.71
Weighted Average Exercise Price Outstanding, Granted
Weighted Average Exercise Price Outstanding, Exercised
Weighted Average Exercise Price Outstanding, Forfeited/Cancelled
Weighted Average Exercise Price Outstanding, Ending Balance	0.71
Weighted Average Exercise Price Exercisable, Ending Balance	0.71
Weighted Average Grant Date Fair Value Outstanding, Beginning Balance	1.29
Weighted Average Grant Date Fair Value Outstanding, Ending Balance	1.29
Weighted Average Grant Date Fair Value Exercisable, Ending Balance	$ 1.29
Weighted Average Remaining Life Outstanding, Ending Balance	4 months 2 days
Weighted Average Remaining Life Exercisable, Ending Balance	4 months 2 days
Intrinsic Value Outstanding, Ending Balance \| $
Intrinsic Value Exercisable, Ending Balance \| $

Commitments and Contingencies (Details Narrative) - USD ($) $ in Thousands				1 Months Ended		3 Months Ended					9 Months Ended
	May 20, 2019	May 10, 2019	Oct. 23, 2018	Dec. 31, 2019	Aug. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019
Operating Leases Commitments And Security Deposit [Line Items]
Restricted common shares						$ 312	$ 730	$ 1,113	$ 1,249	$ 1,087
Bitcoin Mining Agreements [Member]
Operating Leases Commitments And Security Deposit [Line Items]
Agreement period, description	On May 20, 2019, the Company entered into an agreement with a third-party consultant whereby the consultant would advise and consult with the Company on certain business and financial matters relating to crypto-currency mining. The Company engaged the consultant to: (1) assist in locating at least 5 acres of real property in Georgia within close proximity to a fully operational electric substation with a minimum of 15 MW of available capacity, subject to approval by the power company, (2) negotiate a power rate between the Company and a power company, (3) assist in the identification, purchase, and delivery of transformers required to serve the containerized mining systems, (4) successfully install the aforementioned transformers, and (5) obtain an electrical permit and successfully inspect all electrical infrastructure between the container and substation. The consulting agreement was valued at $400 and such amount was transferred to a third-party escrow account, payable to the consultant upon successful achievement of defined milestones. Upon achievement, the value of the milestone is recorded as a component of general and administrative expenses with an offsetting reduction to prepaid expense. During the second and third quarters of 2019, $200 and $50 in milestone achievements were earned, respectively, and the remaining $150 is recorded as a prepaid expense as of September 30, 2019.
Amount transferred to third-party escrow account	$ 400
Accounts payable upon successful achievement of defined milestones						50	$ 200				$ 50
Prepaid expense						150					150
Revenue related to hosting agreement						78					148
Colorado Hosting Agreement [Member]
Operating Leases Commitments And Security Deposit [Line Items]
Agreement period, description			On October 23, 2018, the Company entered into a hosting agreement ("Colorado Hosting Agreement") with a hosting facility in Colorado, whereby the service provider provides a facility to host Bitcoin computing servers. The Colorado Hosting Agreement has been amended several times and currently provides for the hosting of 1,200 miners, a reduction of a security deposit from $204 to $66 and a termination date of December 3, 2020. Because the price of Bitcoin steadily decreased in 2018 and throughout the first quarter 2019, the Company decided it was not economically responsible to commence mining under this hosting arrangement until May 2019 when Bitcoin mining economics started to improve.
Colorado Hosting Agreement [Member] \| Minimum [Member]
Operating Leases Commitments And Security Deposit [Line Items]
Security deposit			$ 66
Colorado Hosting Agreement [Member] \| Maximum [Member]
Operating Leases Commitments And Security Deposit [Line Items]
Security deposit			$ 204
Ohio Hosting Agreement [Member]
Operating Leases Commitments And Security Deposit [Line Items]
Agreement period, description		On May 10, 2019, the Company, entered into a hosting agreement ("Ohio Hosting Agreement") relating to the generation of Bitcoin mining revenues at a facility located in Coshocton, Ohio (the "Facility") for a term that is the earlier of (i) two years, or (ii) when the parties determine that the Bitcoin mining business at the Facility is uneconomical. The Ohio Hosting Agreement was amended in September 2019 and currently provides for the hosting of 576 miners and a reduction of the security deposit from $240 to $80. Under the terms of the Ohio Hosting Agreement, the Company agreed to provide the necessary hardware to conduct Bitcoin mining at the Facility. The service provider agreed, among other things, to provide necessary hosting capacity, equipment, infrastructure and electricity to operate the mining hardware at the Facility. A third-party operator agreed, among other things, to and maintain the Facility in accordance with prudent industry standards and to maintain the hardware. The service provider is required to disburse on a monthly basis: (i) the total electricity costs to the utility provider; (ii) 10% of Gross Profits (as defined in the Ohio Hosting Agreement) to the operator; (iii) the Net Profits (as defined in the Ohio Hosting Agreement) such that 10% of all Gross Profits (as defined in the Ohio Hosting Agreement) shall be paid to the Company, 40% of all Gross Profits shall be paid to service provider, and 40% of all Gross Profits will be paid into the Security Deposit account until such time as the Security Deposit is paid in full; and (iv) subsequent to the satisfaction of the Security Deposit, Net Profits equally between the Company and the service provider.
Ohio Hosting Agreement [Member] \| Minimum [Member]
Operating Leases Commitments And Security Deposit [Line Items]
Security deposit		$ 80
Ohio Hosting Agreement [Member] \| Maximum [Member]
Operating Leases Commitments And Security Deposit [Line Items]
Security deposit		$ 240
Management Agreements [Member]
Operating Leases Commitments And Security Deposit [Line Items]
Termination fee					$ 337
Gain loss on change in fair value											135
Liability period increase decrease on sale of business						$ 194					194
One time payment for termination agreement											27
Restricted common shares											$ 1,250,000
Restricted common shares, shares											33
Royalties and recognized revenue											$ 7
Management Agreements [Member] \| Subsequent Event [Member]
Operating Leases Commitments And Security Deposit [Line Items]
One time payment for termination agreement				$ 270,000
Restricted common shares				$ 9,000,000
Restricted common shares, shares				279

Subsequent Events (Details Narrative) - USD ($) $ in Thousands		1 Months Ended		3 Months Ended		9 Months Ended
	Apr. 12, 2019	Nov. 14, 2019	Oct. 29, 2019	Sep. 30, 2018	Jun. 30, 2018	Sep. 30, 2019
Number of common stock shares issued, shares						43,100,000
Number of common stock shares issued				$ 0
Conversion of stock shares converted	200,000
Subsequent Event [Member]
Conversion of stock shares converted		8,503,401
Outstanding prinicipal		$ 1,309
Purchase mining description			On October 29, 2019, the Company purchased 320 Bitmain S17 Pro Antminers which were received in early November 2019. The purchase of the S17 Pro Antminers is in addition to the previously announced purchase of 1,100 Bitmain S17 Antminers. The Company expects delivery of that batch prior to mid-December of this year. The containers to house these 1,100 miners include two POD5 containers and are expected onsite by the end of November 2019. Due to contractual provisions of the 1,100 Bitmain S17 order, MGT took advantage of a material price reduction, and chose to allocate some of the savings to the new order of S17 Pro Antminers.
Subsequent Event [Member] \| June 2018 Note [Member]
Notes payable		$ 125
Subsequent Event [Member] \| Equity Purchase Agreement [Member]
Number of common stock shares issued, shares		15,000,000
Number of common stock shares issued		$ 264

Organization and Basis of Presentation (Details Narrative) - USD ($) $ in Thousands	1 Months Ended	5 Months Ended	9 Months Ended
	Sep. 30, 2019	Nov. 14, 2019	Sep. 30, 2019	Sep. 30, 2018	Jun. 04, 2019	Feb. 27, 2019	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Common stock, shares authorized	2,500,000,000		2,500,000,000			125,000,000	2,500,000,000
Common stock shares outstanding	351,390,511		351,390,511				111,079,683
Proceeds from sale of common stock			$ 525
Description on Cryptocurrency mining			Following a review of its Bitcoin mining operations in early 2019, the Company determined to consolidate its activities in Company-owned and managed facilities. Central to this strategy was the purchase of land in LaFayette, GA and the entry into a favorable contract for electricity there in the second quarter of 2019. Located adjacent to a utility substation, the several acre property has access to over 20 megawatts (MW) of low-cost power. The facility will accommodate shipping containers racked with miners with individual capacities of up to 1 MW. The Company began Bitcoin mining at its LaFayette facility in late September 2019, using a newly designed container solution with a capacity of 456 Bitmain S9 miners or 300 Bitmain S17 miners. The property now has three of these containers onsite, awaiting the deployment of 320 S17 Pro miners that have been delivered by Bitmain, as well as MGT's previously ordered 1,100 S17 miners, expected by mid-December 2019. By the end of November 2019, the Company expects delivery of two POD5 containers, each able to house 360 S17 miners. Including all hardware purchases to date, MGT projects a total of 1,475 new generation Bitcoin miners in operation in five containers at year end 2019. The machines collectively are rated at a total of approximately 80 Ph/s in computational power and will require an electric load of 4.0 MW. Phase one of the physical facility in LaFayette is substantially complete with five transformers installed with 12.5 MW of total load capacity and property improvements in place, such as access roads, security fencing, workshop, network wiring and underground high voltage electrical feeder lines. The Company's agreements with third-party hosting facilities have been reduced to 1,200 S9 miners in Colorado Springs, and a location in Coshocton, Ohio, where MGT operates 576 S9 miners housed in the first production model of the Pod5 container, as further described in Note 9.
Third-party Management Agreements [Member]
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Sale of stock, number of shares issued in transaction	2,500
Subsequent Event [Member]
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Sale of stock, number of shares issued in transaction		55,000,000
Proceeds from sale of common stock		$ 1,804
Maximum [Member]
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Common stock shares outstanding					76,558,643

Property, Plant, and Equipment and Other Assets (Details Narrative) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Depreciation expense	$ 27	$ 1,429	$ 27	$ 2,618
Purchase price			$ 556	$ 6,994
Bitmaintech Pte Ltd [Member]
Property, plant and equipment, estimated useful lives	P2Y
Bitmaintech Pte Ltd [Member] \| 1,100 Antminer-S-17 Bitcoin Mining Machines [Member]
Purchase price	$ 2,770
Payments for deposits	1,385
Bitmaintech Pte Ltd [Member] \| Other Bitcoin Mining Machines [Member]
Payments for deposits	$ 88
Bitcoin Mining Machines [Member]
Property, plant and equipment, estimated useful lives	P5Y

Property, Plant, and Equipment and Other Assets - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Property and equipment, gross	$ 884	$ 17
Less: Accumulated depreciation	(44)	(17)
Property and equipment, net	840
Land [Member]
Property and equipment, gross	57
Computer Hardware and Software [Member]
Property and equipment, gross	17	17
Bitcoin Mining Machines [Member]
Property and equipment, gross	359
Infrastructure [Member]
Property and equipment, gross	$ 451

Property, Plant, and Equipment and Other Assets - Schedule of Other Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Property, Plant and Equipment [Abstract]
Deposits on Bitcoin mining machines	$ 1,473
Deposits on containers	344
Security deposits-hosted arrangements	83
Other Assets	$ 1,900	$ 204

Leases - Schedule of Future Minimum Lease Payment (Details) $ in Thousands	Sep. 30, 2019 USD ($)
Leases [Abstract]
2019	$ 21
2020	7
Total undiscounted minimum future lease payments	28
Less Imputed interest
Present value of operating lease liabilities	$ 28

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2019	Dec. 31, 2018
Preferred stock, shares authorized	8,499,800
Preferred stock, shares issued
Preferred stock, shares outstanding
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	2,500,000,000	2,500,000,000
Common stock, shares issued	351,390,511	111,079,683
Common stock, shares outstanding	351,390,511	111,079,683
Undesignated Preferred Stock [Member]
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	8,489,800	8,500,000
Preferred stock, shares issued
Preferred stock, shares outstanding
Series B Preferred Stock [Member]
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000	0
Preferred stock, shares issued
Preferred stock, shares outstanding
Series C Convertible Preferred Stock [Member]
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	200	0
Preferred stock, shares issued	115	0
Preferred stock, shares outstanding	115	0

Going Concern and Management's Plans (Details Narrative) - USD ($) $ in Thousands	Oct. 31, 2019	Sep. 30, 2019	Dec. 31, 2018
Accumulated deficit		$ 413,303	$ 404,719
Cash and cash equivalents		$ 2,113	$ 96
Subsequent Event [Member]
Cash and cash equivalents	$ 1,077

Summary of Significant Accounting Policies - Schedule of Effect On Company's Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Notes payable, net of discount	$ 939			$ 1,285
Total current liabilities	1,955			1,832
Total liabilities	1,955			1,832
Accumulated deficit	(413,303)			(404,719)
Total stockholders' deficit	$ 3,310	$ 2,962	$ (253)	(1,309)	$ 114	$ 5,881	$ 9,870	$ 11,873
As Previously Reported [Member]
Notes payable, net of discount				1,851
Total current liabilities				2,398
Total liabilities				2,398
Accumulated deficit				(405,285)
Total stockholders' deficit				(1,875)
Adjustment [Member]
Notes payable, net of discount				(566)
Total current liabilities				(566)
Total liabilities				(566)
Accumulated deficit				566
Total stockholders' deficit				$ 566

Leases (Details Narrative) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
Leases (Details Narrative) - USD ($) $ in Thousands	Aug. 09, 2016	Sep. 30, 2019	Jun. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Jan. 02, 2019	Dec. 31, 2018
Operating Leases Commitments And Security Deposit [Line Items]
Monthly rent		$ 20	$ 20	$ 60	$ 36
Weighted average remaining lease term		3 months 29 days		3 months 29 days
Weighted average lease discount rate		10.80%		10.80%
Right of use asset		$ 32		$ 32		$ 87
Sublease Agreement [Member]
Operating Leases Commitments And Security Deposit [Line Items]
Lease expiration	Jan. 31, 2020
Security deposit	$ 13
First 12-Month Period [Member]
Operating Leases Commitments And Security Deposit [Line Items]
Monthly rent	6
After 12 Month Period Until Expiration [Member]
Operating Leases Commitments And Security Deposit [Line Items]
Monthly rent	$ 7

Stock-Based Compensation (Details Narrative) - USD ($) $ in Thousands		3 Months Ended				9 Months Ended
	Jul. 29, 2019	Sep. 30, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation						$ 1,991	$ 5,417
Value issued for services provider			$ 322	$ 875	$ 839
Unrecognized compensation costs related to non-vested stock options
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized stock-based compensation costs						$ 535
Share based compensation of weighted average period term						6 months 21 days
Employee and Director [Member] \| Selling General and Administrative Expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation		312	1,114			$ 1,936	3,448
Employee [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted shares granted	100,000
Consultants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Value issued for services provider		$ 0	$ 322			$ 60	$ 2,036

Stock-Based Compensation - Schedule of Restricted Common Stock Activity (Details)	9 Months Ended
	Sep. 30, 2019 $ / shares shares
Share-based Payment Arrangement [Abstract]
Number of shares Non-vested, Beginning Balance \| shares	3,355,000
Number of shares, Granted \| shares	100,000
Number of shares, Vested \| shares	(2,605,000)
Number of shares Non-vested, Ending Balance \| shares	850,000
Weighted average grant date fair value Non-vested, Beginning Balance \| $ / shares	$ 1.46
Weighted average grant date fair value, Granted \| $ / shares	0.04
Weighted average grant date fair value, Vested \| $ / shares	1.30
Weighted average grant date fair value Non-vested, Ending Balance \| $ / shares	$ 1.24

Employee Benefit Plans (Details Narrative) - 401(k) Plan [Member] - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Employee contribution amount	$ 15	$ 18
Maximum [Member]
Employee contribution percentage	100.00%