Common Stock, Preferred Stock and Warrants (Details Narrative)				1 Months Ended	10 Months Ended	12 Months Ended
	Nov. 01, 2024 USD ($) shares	Oct. 31, 2024 $ / shares shares	Jun. 21, 2024 shares	Jan. 31, 2019 $ / shares shares	Nov. 01, 2024 shares	Dec. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) $ / shares shares	Apr. 30, 2019 $ / shares shares
Accumulated Other Comprehensive Income (Loss) [Line Items]
Shares issued of common stock, value \| $						$ 276,000	$ 408,000
Number of warrants							8,868,360
Fair value of derivative liability \| $							$ 44,000
Cashless exercise of warrants fair value \| $						63,000	461,000
Gain loss on settlement of derivative \| $							$ (302,000)
Series D Preferred Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Preferred stock shares authorized		1,000,000
Preferred stock par value \| $ / shares		$ 0.001
Preferred stock conversion basis, description		Shares of Series D Preferred Stock are convertible or exchangeable by holder into shares of Common Stock, at any time such Common Shares are authorized but unissued, on a one-for-one thousand (1-for-1000) basis
Series B Preferred Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Preferred stock shares authorized				10,000		10,000	10,000
Preferred stock par value \| $ / shares				$ 0.001		$ 0.001	$ 0.001
Preferred stock, stated value \| $ / shares				$ 100
Preferred stock, dividend rate, percentage				12.00%
Series B Preferred Stock [Member] \| Board of Directors [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
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. 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.
Series C Preferred Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Preferred stock shares authorized								200
Preferred stock par value \| $ / shares								$ 0.001
Warrant Exchange and Extinguishment Agreement [Member] \| Series D Preferred Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Warrants issued		650,000
Common Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Shares issued of common stock, shares			3,346,420			62,000,000	34,000,000
Number of warrants (or share units) exercised during the current period							80,000,000
Shares issued of common stock, value \| $						$ 62,000	$ 34,000
Shares issued conversion of common stock	750,000,000
Shares issued conversion of common stock, value \| $	$ 36
Cashless exercise of warrants fair value, shares						103,500,000	91,400,000
Cashless exercise of warrants fair value \| $						$ 104,000	$ 91,000
Common Stock [Member] \| Series D Preferred Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Shares issued of common stock, shares	650,000
Shares issued of common stock, value \| $	$ 31
Common Stock [Member] \| Lease Agreement [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Shares issued of common stock, shares						62,000,000
Shares issued of common stock, value \| $						$ 372
Common Stock [Member] \| December 2023 Note [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Shares issued of common stock, shares						126,000,000
Shares issued of common stock, value \| $						$ 178
Warrant [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Shares issued of common stock, shares	600,000,000
Number of warrants (or share units) exercised during the current period			103,500,000,000
Shares issued of common stock, value \| $	$ 29
Number of warrants						3,346,420	31,668,360
Cashless exercise of warrants fair value, shares							80,000,000
Cashless exercise of warrants fair value \| $							$ 346,000
Gain loss on settlement of derivative \| $							$ 302,000
Warrant [Member] \| Measurement Input, Exercise Price [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Warrants and rights outstanding measurement input \| $ / shares							0.05
Warrant [Member] \| Measurement Input, Expected Dividend Rate [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Warrants and rights outstanding measurement input							0
Warrant [Member] \| Minimum [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Share price \| $ / shares							$ 0.0023
Warrant [Member] \| Minimum [Member] \| Measurement Input, Expected Term [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Warrants and rights outstanding, term							2 years 2 months 12 days
Warrant [Member] \| Minimum [Member] \| Measurement Input, Risk Free Interest Rate [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Warrants and rights outstanding measurement input							3.76
Warrant [Member] \| Minimum [Member] \| Measurement Input, Price Volatility [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Warrants and rights outstanding measurement input							171.4
Warrant [Member] \| Maximum [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Share price \| $ / shares							$ 0.01
Warrant [Member] \| Maximum [Member] \| Measurement Input, Expected Term [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Warrants and rights outstanding, term							3 years 1 month 6 days
Warrant [Member] \| Maximum [Member] \| Measurement Input, Risk Free Interest Rate [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Warrants and rights outstanding measurement input							4.37
Warrant [Member] \| Maximum [Member] \| Measurement Input, Price Volatility [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Warrants and rights outstanding measurement input							309.3
X, Y and Z Warrants [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Number of warrants issued					226,800,000
Number of warrants issued during the current period					617,944,296

MGT CAPITAL INVESTMENTS, INC. 10-K