Organization	3 Months Ended
Mar. 31, 2013
Organization, Consolidation and Presentation Of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]	Note 1: Organization MGT Capital Investments, Inc. (“MGT”, “the Company”, “the Group”, “we”, “us”) is a Delaware corporation, incorporated in 2000. The Company was originally incorporated in Utah in 1977. As of March 31, 2013, MGT is comprised of the parent company, majority-owned subsidiary MGT Gaming, Inc. (“MGT Gaming”) and wholly-owned subsidiary, Medicsight, Inc. (“Medicsight”). Our Corporate office is located in Harrison, New York. MGT and its subsidiaries are engaged in the business of acquiring and monetizing intellectual property. MGT Gaming owns U. S. Patent No. 7,892,088 (“the ‘088 Patent”) relating to casino gaming systems and seeks to enforce its proprietary rights against possible infringers. On November 2, 2012, MGT Gaming filed a lawsuit claiming patent infringement against multiple companies believed to be violating the ‘088 Patent entitled "Gaming Device Having a Second Separate Bonusing Event." The ‘088 Patent is directed to a gaming system in which a second game played on an interactive sign is triggered once specific events occur in a first game. The lawsuit, which was filed in the United States District Court for the Southern District of Mississippi (Jackson Division), alleges the defendants Caesars Entertainment (NASDAQ GS: CZR), MGM Resorts International, Inc. (NYSE: MGM), WMS Gaming, Inc. - a subsidiary of WMS Industries, Inc. (NYSE: WMS), Penn National Gaming, Inc. (NASDAQ GS: PENN), and Aruze Gaming America, Inc. either manufacture, sell or lease gaming systems in violation of MGT Gaming's patent rights, or operate casinos that offer gaming systems in violation of MGT Gaming's patent rights. An amended version of the complaint was later filed on December 17, 2012. The allegedly infringing products manufactured, distributed, used, sold and/or offered for sale by defendants include at least those identified under the trade names: "Pirate Battle," "Battleship," "Clue," "Monopoly, " "Rich Life, " "Amazon Fishing Competition, " "Massive Fishing Competition, " "Big Game Competition, " "Jackpot Battle Royal, " "Wizard of Oz Journey to Oz, " "The Great and Powerful Oz," and "Paradise Fishing." On January 3, 2013, WMS (joined by Caesars and MGM) moved to sever the litigation against each defendant into separate actions and to transfer the action against WMS to the Northern District of Illinois and to dismiss the case. Later that same month defendants Aruze Gaming America, Inc. and Penn National Gaming, Inc. filed motions to dismiss and motions to transfer venue to Nevada and Pennsylvania, respectively. Responsive and reply briefs have been filed and these motions are now fully briefed. As of May 17, 2013, the court has not made any decisions on these motions. In addition, on March 21, 2013, Aruze filed a separate action in Nevada seeking a declaratory judgment that it does not infringe the '088 Patent and/or that the '088 Patent is invalid or unenforceable. MGT Gaming's response to the action is due on June 11, 2013. Medicsight is a medical technology company with patent ownership, as well as operations in imaging software and hardware devices, and consulting services. The company’s computer-aided detection software ColonCAD™ assists radiologists with detection of colorectal polyps, and has received regulatory approvals including CE Mark and U.S. Food and Drug Administration (“FDA”) clearance. The Company also has developed an automated CO₂ insufflation device that it commercializes through a global distributor. In addition, the company provides consulting and communication services.

Organization

3 Months Ended

Mar. 31, 2013

Organization, Consolidation and Presentation Of Financial Statements [Abstract]

Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]

Note 1: Organization

MGT Capital Investments, Inc. (“MGT”, “the Company”, “the Group”, “we”, “us”) is a Delaware corporation, incorporated in 2000. The Company was originally incorporated in Utah in 1977. As of March 31, 2013, MGT is comprised of the parent company, majority-owned subsidiary MGT Gaming, Inc. (“MGT Gaming”) and wholly-owned subsidiary, Medicsight, Inc. (“Medicsight”). Our Corporate office is located in Harrison, New York.

MGT and its subsidiaries are engaged in the business of acquiring and monetizing intellectual property.

MGT Gaming owns U. S. Patent No. 7,892,088 (“the ‘088 Patent”) relating to casino gaming systems and seeks to enforce its proprietary rights against possible infringers. On November 2, 2012, MGT Gaming filed a lawsuit claiming patent infringement against multiple companies believed to be violating the ‘088 Patent entitled "Gaming Device Having a Second Separate Bonusing Event." The ‘088 Patent is directed to a gaming system in which a second game played on an interactive sign is triggered once specific events occur in a first game. The lawsuit, which was filed in the United States District Court for the Southern District of Mississippi (Jackson Division), alleges the defendants Caesars Entertainment (NASDAQ GS: CZR), MGM Resorts International, Inc. (NYSE: MGM), WMS Gaming, Inc. - a subsidiary of WMS Industries, Inc. (NYSE: WMS), Penn National Gaming, Inc. (NASDAQ GS: PENN), and Aruze Gaming America, Inc. either manufacture, sell or lease gaming systems in violation of MGT Gaming's patent rights, or operate casinos that offer gaming systems in violation of MGT Gaming's patent rights. An amended version of the complaint was later filed on December 17, 2012. The allegedly infringing products manufactured, distributed, used, sold and/or offered for sale by defendants include at least those identified under the trade names: "Pirate Battle," "Battleship," "Clue," "Monopoly, " "Rich Life, " "Amazon Fishing Competition, " "Massive Fishing Competition, " "Big Game Competition, " "Jackpot Battle Royal, " "Wizard of Oz Journey to Oz, " "The Great and Powerful Oz," and "Paradise Fishing." On January 3, 2013, WMS (joined by Caesars and MGM) moved to sever the litigation against each defendant into separate actions and to transfer the action against WMS to the Northern District of Illinois and to dismiss the case. Later that same month defendants Aruze Gaming America, Inc. and Penn National Gaming, Inc. filed motions to dismiss and motions to transfer venue to Nevada and Pennsylvania, respectively. Responsive and reply briefs have been filed and these motions are now fully briefed. As of May 17, 2013, the court has not made any decisions on these motions. In addition, on March 21, 2013, Aruze filed a separate action in Nevada seeking a declaratory judgment that it does not infringe the '088 Patent and/or that the '088 Patent is invalid or unenforceable. MGT Gaming's response to the action is due on June 11, 2013.

Medicsight is a medical technology company with patent ownership, as well as operations in imaging software and hardware devices, and consulting services. The company’s computer-aided detection software ColonCAD™ assists radiologists with detection of colorectal polyps, and has received regulatory approvals including CE Mark and U.S. Food and Drug Administration (“FDA”) clearance. The Company also has developed an automated CO₂ insufflation device that it commercializes through a global distributor. In addition, the company provides consulting and communication services.

- Definition

The entire disclosure for the organization, consolidation and basis of presentation of financial statements disclosure, and significant accounting policies of the reporting entity. May be provided in more than one note to the financial statements, as long as users are provided with an understanding of (1) the significant judgments and assumptions made by an enterprise in determining whether it must consolidate a VIE and/or disclose information about its involvement with a VIE, (2) the nature of restrictions on a consolidated VIE's assets reported by an enterprise in its statement of financial position, including the carrying amounts of such assets, (3) the nature of, and changes in, the risks associated with an enterprise's involvement with the VIE, and (4) how an enterprise's involvement with the VIE affects the enterprise's financial position, financial performance, and cash flows. Describes procedure if disclosures are provided in more than one note to the financial statements.

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