Organization and Basis of Presentation	3 Months Ended
Mar. 31, 2019
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 Capital”) is a Delaware corporation, incorporated in 2000. MGT Capital was originally incorporated in Utah in 1977. “MGT” or the “Company” was formerly comprised of the parent company and its wholly–owned subsidiaries MGT Cybersecurity, Inc., Medicsight, Inc., MGT Sports, Inc., MGT Studios, Inc. (“MGT Studios”), MGT Interactive, LLC, MGT Gaming, Inc., MGT Mining One, Inc., MGT Mining Two, Inc., and MGT Sweden AB. MGT Studios also owned a controlling minority interest in the subsidiary M2P Americas, Inc. During the first quarter of 2019, the Company filed certificates of dissolution for all of its wholly-owned subsidiaries except MGT Sweden AB. MGT’s corporate office is located in Durham, North Carolina. On February 27, 2019, the Company’s stockholders approved an increase in the Company’s authorized common shares from 125,000,000 to 2,500,000,000. On February 27, 2019, the Company filed an amendment to its Certificate of Incorporation with the state of Delaware to reflect this change. On March 23, 2018, the Company’s stockholders approved a 1-for-2 reverse split of the Company’s common stock. As of May 15, 2019, the Company had not amended its Certificate of Incorporation to reflect this reverse split and such adjustments are not reflected within these unaudited condensed consolidated financial statements. On June 13, 2018, the Company filed a universal shelf registration statement covering up to $150 million of various MGT securities, including common stock, preferred stock, debt securities, rights, warrants, and units, that the Company may sell from time to time. On August 10, 2018, this registration statement on Form S-3 was declared effective by the Securities and Exchange Commission (“SEC”). Through April 15, 2019, the Company has sold $6,036 of securities under this registration statement. On April 16, 2019, the Company became ineligible to issue shares pursuant to the Form S-3 as the aggregate market of the Company’s common stock held by non-affiliates was below the regulatory threshold of $75,000. Cryptocurrency mining As of March 31, 2019, MGT owned and or managed approximately 5,700 Bitcoin miners. Approximately 2,500 machines are located in Colorado and 3,200 machines are located in Ohio. Of the 5,700 machines, 3,700 are owned by the Company, and the remaining machines are investor owned. All miners owned or managed by MGT are S9 Antminers sold by Bitmain Technologies LTD. In addition to the S9 Antminers, the Company owns 50 custom designed GPU-based Ethereum mining rigs. Because the price of Bitcoin steadily decreased during 2018 and throughout the first quarter of 2019, the Company decided it was not economically responsible to commence mining operations in Colorado or Ohio. On May 14, 2019, the Company announced commencement of operations in both Colorado and Ohio. During the three months ended March 31, 2019, the Company mined 8 Bitcoin for total revenue of $28. These coins were earned from the operation of approximately 500 Company owned machines located in a leased facility in Quincy, Washington. On March 22, 2019, the Company conveyed its ownership of these machines in satisfaction of outstanding hosting service fees. Legacy business – cybersecurity On January 26, 2018, the Company announced the end of its business relationship with cybersecurity pioneer John McAfee. Since August 2017, Mr. McAfee had served as Chief Cybersecurity Visionary of the Company, guiding the development of the Company’s cybersecurity business, including Sentinel, an enterprise class network intrusion detector, released in October 2017. The Company also owned the intellectual property associated with developing and marketing a mobile phone with extensive privacy and anti-hacking features. On March 19, 2018, the Company announced it had ended its cybersecurity operations by selling the Sentinel product line to a new entity formed by the unit’s management team and stopping development of the privacy phone. The Sentinel assets were sold for consideration of $60 in cash and a $1,000 promissory note, convertible into a 20% equity interest of the buyer. Basis of presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions to Form 10–Q and Rule 10 of Regulation S–X. Accordingly, they do not include all of the information and notes required by accounting principles generally accepted in the United States of America. However, in the opinion of the management of the Company, all adjustments necessary for a fair presentation of the financial position and operating results have been included in these statements. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10–K for the fiscal year ended December 31, 2018, as filed with the SEC on April 16, 2019. Operating results for the three months ended March 31, 2019 are not necessarily indicative of the results that may be expected for any subsequent quarters or for the year ending December 31, 2019.

Organization and Basis of Presentation

3 Months Ended

Mar. 31, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Note 1. Organization and Basis of Presentation

Organization

MGT Capital Investments, Inc. (“MGT Capital”) is a Delaware corporation, incorporated in 2000. MGT Capital was originally incorporated in Utah in 1977. “MGT” or the “Company” was formerly comprised of the parent company and its wholly–owned subsidiaries MGT Cybersecurity, Inc., Medicsight, Inc., MGT Sports, Inc., MGT Studios, Inc. (“MGT Studios”), MGT Interactive, LLC, MGT Gaming, Inc., MGT Mining One, Inc., MGT Mining Two, Inc., and MGT Sweden AB. MGT Studios also owned a controlling minority interest in the subsidiary M2P Americas, Inc. During the first quarter of 2019, the Company filed certificates of dissolution for all of its wholly-owned subsidiaries except MGT Sweden AB.

MGT’s corporate office is located in Durham, North Carolina.

On February 27, 2019, the Company’s stockholders approved an increase in the Company’s authorized common shares from 125,000,000 to 2,500,000,000. On February 27, 2019, the Company filed an amendment to its Certificate of Incorporation with the state of Delaware to reflect this change.

On March 23, 2018, the Company’s stockholders approved a 1-for-2 reverse split of the Company’s common stock. As of May 15, 2019, the Company had not amended its Certificate of Incorporation to reflect this reverse split and such adjustments are not reflected within these unaudited condensed consolidated financial statements.

On June 13, 2018, the Company filed a universal shelf registration statement covering up to $150 million of various MGT securities, including common stock, preferred stock, debt securities, rights, warrants, and units, that the Company may sell from time to time. On August 10, 2018, this registration statement on Form S-3 was declared effective by the Securities and Exchange Commission (“SEC”). Through April 15, 2019, the Company has sold $6,036 of securities under this registration statement. On April 16, 2019, the Company became ineligible to issue shares pursuant to the Form S-3 as the aggregate market of the Company’s common stock held by non-affiliates was below the regulatory threshold of $75,000.

Cryptocurrency mining

As of March 31, 2019, MGT owned and or managed approximately 5,700 Bitcoin miners. Approximately 2,500 machines are located in Colorado and 3,200 machines are located in Ohio. Of the 5,700 machines, 3,700 are owned by the Company, and the remaining machines are investor owned. All miners owned or managed by MGT are S9 Antminers sold by Bitmain Technologies LTD. In addition to the S9 Antminers, the Company owns 50 custom designed GPU-based Ethereum mining rigs. Because the price of Bitcoin steadily decreased during 2018 and throughout the first quarter of 2019, the Company decided it was not economically responsible to commence mining operations in Colorado or Ohio. On May 14, 2019, the Company announced commencement of operations in both Colorado and Ohio.

During the three months ended March 31, 2019, the Company mined 8 Bitcoin for total revenue of $28. These coins were earned from the operation of approximately 500 Company owned machines located in a leased facility in Quincy, Washington. On March 22, 2019, the Company conveyed its ownership of these machines in satisfaction of outstanding hosting service fees.

Legacy business – cybersecurity

On January 26, 2018, the Company announced the end of its business relationship with cybersecurity pioneer John McAfee. Since August 2017, Mr. McAfee had served as Chief Cybersecurity Visionary of the Company, guiding the development of the Company’s cybersecurity business, including Sentinel, an enterprise class network intrusion detector, released in October 2017. The Company also owned the intellectual property associated with developing and marketing a mobile phone with extensive privacy and anti-hacking features.

On March 19, 2018, the Company announced it had ended its cybersecurity operations by selling the Sentinel product line to a new entity formed by the unit’s management team and stopping development of the privacy phone. The Sentinel assets were sold for consideration of $60 in cash and a $1,000 promissory note, convertible into a 20% equity interest of the buyer.

Basis of presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions to Form 10–Q and Rule 10 of Regulation S–X. Accordingly, they do not include all of the information and notes required by accounting principles generally accepted in the United States of America. However, in the opinion of the management of the Company, all adjustments necessary for a fair presentation of the financial position and operating results have been included in these statements. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10–K for the fiscal year ended December 31, 2018, as filed with the SEC on April 16, 2019. Operating results for the three months ended March 31, 2019 are not necessarily indicative of the results that may be expected for any subsequent quarters or for the year ending December 31, 2019.