Organization and Basis of Presentation	6 Months Ended
Jun. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Basis of Presentation	Note 1. Organization and basis of presentation Organization MGT Capital Investments, Inc. (“MGT,” “the Company,” “we,” “us”) is a Delaware corporation, incorporated in 2000. The Company was originally incorporated in Utah in 1977. MGT is comprised of the parent company, wholly–owned subsidiaries MGT Cybersecurity, Inc. (“MGT Cybersecurity”), Medicsight, Inc. (“Medicsight”), MGT Sports, Inc. (“MGT Sports”), MGT Studios, Inc. (“MGT Studios”), MGT Interactive, LLC (“MGT Interactive”), MGT Gaming, Inc. (“MGT Gaming”) and MGT Mining One, Inc. (“Mining Sub”). MGT Studios also owns a controlling minority interest in the subsidiary M2P Americas, Inc. Our corporate office is located in Durham, North Carolina. Mining Sub was formed in April 2017 for the purpose of facilitating the issuance of the Iliad Note. The Company is in the process of acquiring and developing a diverse portfolio of cybersecurity technologies. Also, as part of its corporate efforts in secure technologies, MGT is growing its capacity in mining Bitcoin. On September 8, 2016, MGT stockholders voted to change the corporate name of MGT to “John McAfee Global Technologies, Inc.” Following a dispute over ownership and permitted usage of the name McAfee, the Company and Intel agreed to a mediation process to avoid unnecessary legal costs. On June 30, 2017 the Company entered into a settlement agreement with Intel (See Note 13). Cybersecurity On May 9, 2016, the Company, through its wholly owned subsidiary, MGT Cybersecurity, Inc., entered into an asset purchase agreement (APA) to acquire certain assets owned by D–Vasive, Inc. (the “D-Vasive APA”), a Wyoming corporation in the business of developing and marketing certain privacy and anti–spy applications. Pursuant to the terms of the D–Vasive APA, the Company had agreed to purchase assets including, but not limited to, applications for use on mobile devices, intellectual property, customer lists, databases, sales pipelines, proposals and project files, licenses and permits. The proposed purchase price for D–Vasive was $300 in cash and 23.8 million shares of MGT common stock. On October 5, 2016, the Company paid a $70 refundable advance as part of a modification of terms. The advance will be refundable if the APA is not closed within twelve months of the modification. On May 26, 2016, the Company entered into an asset purchase agreement with Demonsaw LLC (the “Demonsaw APA”), a Delaware company, for the purchase of certain technology and assets. Demonsaw is in the business of developing and marketing secure and anonymous information sharing applications. Pursuant to the terms of the Demonsaw APA, the Company agreed to purchase assets including the source code for the Demonsaw solution, intellectual property, customer lists, databases, sales pipelines, proposals and project files, licenses and permits. The proposed purchase price for Demonsaw was 20.0 million shares of MGT common stock. On July 7, 2016, and prior to the closing of either of the above transactions, the Company and Demonsaw terminated the Demonsaw APA. Simultaneously, D–Vasive entered an agreement with the holders of Demonsaw outstanding membership interests, whereby D–Vasive would purchase all such membership interests. The closing of that transaction was contingent on the closing of the transaction contemplated under the D–Vasive APA. Accordingly, the proposed purchase price for D–Vasive (inclusive of the Demonsaw assets) was increased to 43.8 million shares of MGT common stock (the “Amended APA”). On August 8, 2016, the Company filed a Definitive Proxy Statement to solicit, among other things, shareholder approval of the D–Vasive acquisition, at the upcoming Annual Meeting of Stockholders. On September 8, 2016, shareholder approval was obtained. However, on September 19, 2016, the New York Stock Exchange informed the Company that it would not approve the listing on the Exchange of the 43.8 million shares required to be issued to complete the closing of the D–Vasive acquisition. Not reaching this critical closing condition resulted in the termination of the Amended APA. On March 3, 2017, MGT purchased 46% of the outstanding membership interests in Demonsaw LLC for 2.0 million MGT common shares from Future Tense Secure Systems, Inc. (“FTS”). The Company recorded the purchase using the fair value of the common shares provided and immediately impaired the equity method investment during the three months ended March 31, 2017. Janice Dyson, wife of John McAfee, the Company’s Executive Chairman of the Board of Directors and Chief Executive Officer, is the sole director of FTS and owns 33% of the currently outstanding shares of common stock of such company. On April 3, 2017 the Company terminated the APA dated May 9, 2016, as amended on July 7, 2016, entered into by and among MGT, D–Vasive, the shareholders of D–Vasive and MGT Cybersecurity. The termination of the APA was premised on Section 3.4(b) of the APA which states that the APA may be terminated by either party thereto if the Closing contemplated thereunder did not occur on or before a specified date and the same is not otherwise extended by the parties, in writing or otherwise. Pursuant to the APA, as amended, MGT would have acquired certain technology and assets of D–Vasive if the Closing had occurred on the terms of the APA, as amended. Bitcoin mining On September 13, 2016, the Company announced launch of its 5.0 PH/s Bitcoin mining operation, based in central Washington. The facility is currently being expanded with the addition of 13 PH/s in computing power. Legacy businesses Prior to second quarter ending June 30, 2016, the Company and its subsidiaries were principally engaged in the business of acquiring, developing, and monetizing assets in the online and mobile gaming space as well as the social casino industry.

Organization and Basis of Presentation

6 Months Ended

Jun. 30, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Note 1. Organization and basis of presentation

Organization

MGT Capital Investments, Inc. (“MGT,” “the Company,” “we,” “us”) is a Delaware corporation, incorporated in 2000. The Company was originally incorporated in Utah in 1977. MGT is comprised of the parent company, wholly–owned subsidiaries MGT Cybersecurity, Inc. (“MGT Cybersecurity”), Medicsight, Inc. (“Medicsight”), MGT Sports, Inc. (“MGT Sports”), MGT Studios, Inc. (“MGT Studios”), MGT Interactive, LLC (“MGT Interactive”), MGT Gaming, Inc. (“MGT Gaming”) and MGT Mining One, Inc. (“Mining Sub”). MGT Studios also owns a controlling minority interest in the subsidiary M2P Americas, Inc. Our corporate office is located in Durham, North Carolina. Mining Sub was formed in April 2017 for the purpose of facilitating the issuance of the Iliad Note.

The Company is in the process of acquiring and developing a diverse portfolio of cybersecurity technologies.

Also, as part of its corporate efforts in secure technologies, MGT is growing its capacity in mining Bitcoin.

On September 8, 2016, MGT stockholders voted to change the corporate name of MGT to “John McAfee Global Technologies, Inc.” Following a dispute over ownership and permitted usage of the name McAfee, the Company and Intel agreed to a mediation process to avoid unnecessary legal costs. On June 30, 2017 the Company entered into a settlement agreement with Intel (See Note 13).

Cybersecurity

On May 9, 2016, the Company, through its wholly owned subsidiary, MGT Cybersecurity, Inc., entered into an asset purchase agreement (APA) to acquire certain assets owned by D–Vasive, Inc. (the “D-Vasive APA”), a Wyoming corporation in the business of developing and marketing certain privacy and anti–spy applications. Pursuant to the terms of the D–Vasive APA, the Company had agreed to purchase assets including, but not limited to, applications for use on mobile devices, intellectual property, customer lists, databases, sales pipelines, proposals and project files, licenses and permits. The proposed purchase price for D–Vasive was $300 in cash and 23.8 million shares of MGT common stock. On October 5, 2016, the Company paid a $70 refundable advance as part of a modification of terms. The advance will be refundable if the APA is not closed within twelve months of the modification.

On May 26, 2016, the Company entered into an asset purchase agreement with Demonsaw LLC (the “Demonsaw APA”), a Delaware company, for the purchase of certain technology and assets. Demonsaw is in the business of developing and marketing secure and anonymous information sharing applications. Pursuant to the terms of the Demonsaw APA, the Company agreed to purchase assets including the source code for the Demonsaw solution, intellectual property, customer lists, databases, sales pipelines, proposals and project files, licenses and permits. The proposed purchase price for Demonsaw was 20.0 million shares of MGT common stock.

On July 7, 2016, and prior to the closing of either of the above transactions, the Company and Demonsaw terminated the Demonsaw APA. Simultaneously, D–Vasive entered an agreement with the holders of Demonsaw outstanding membership interests, whereby D–Vasive would purchase all such membership interests. The closing of that transaction was contingent on the closing of the transaction contemplated under the D–Vasive APA. Accordingly, the proposed purchase price for D–Vasive (inclusive of the Demonsaw assets) was increased to 43.8 million shares of MGT common stock (the “Amended APA”).

On August 8, 2016, the Company filed a Definitive Proxy Statement to solicit, among other things, shareholder approval of the D–Vasive acquisition, at the upcoming Annual Meeting of Stockholders. On September 8, 2016, shareholder approval was obtained. However, on September 19, 2016, the New York Stock Exchange informed the Company that it would not approve the listing on the Exchange of the 43.8 million shares required to be issued to complete the closing of the D–Vasive acquisition. Not reaching this critical closing condition resulted in the termination of the Amended APA.

On March 3, 2017, MGT purchased 46% of the outstanding membership interests in Demonsaw LLC for 2.0 million MGT common shares from Future Tense Secure Systems, Inc. (“FTS”). The Company recorded the purchase using the fair value of the common shares provided and immediately impaired the equity method investment during the three months ended March 31, 2017.

Janice Dyson, wife of John McAfee, the Company’s Executive Chairman of the Board of Directors and Chief Executive Officer, is the sole director of FTS and owns 33% of the currently outstanding shares of common stock of such company.

On April 3, 2017 the Company terminated the APA dated May 9, 2016, as amended on July 7, 2016, entered into by and among MGT, D–Vasive, the shareholders of D–Vasive and MGT Cybersecurity. The termination of the APA was premised on Section 3.4(b) of the APA which states that the APA may be terminated by either party thereto if the Closing contemplated thereunder did not occur on or before a specified date and the same is not otherwise extended by the parties, in writing or otherwise. Pursuant to the APA, as amended, MGT would have acquired certain technology and assets of D–Vasive if the Closing had occurred on the terms of the APA, as amended.

Bitcoin mining

On September 13, 2016, the Company announced launch of its 5.0 PH/s Bitcoin mining operation, based in central Washington. The facility is currently being expanded with the addition of 13 PH/s in computing power.

Legacy businesses

Prior to second quarter ending June 30, 2016, the Company and its subsidiaries were principally engaged in the business of acquiring, developing, and monetizing assets in the online and mobile gaming space as well as the social casino industry.