Basis of Presentation	3 Months Ended
Mar. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation GlassBridge Enterprises, Inc. (“GlassBridge”, “the Company”, “we”, “us” or “our”) is a holding company. Our wholly-owned subsidiary GlassBridge Asset Management, LLC (“GBAM”) is an investment advisor focused on technology-driven quantitative strategies and other alternative investment strategies. Our partially-owned subsidiary NXSN Acquisition Corp. (together with its subsidiaries, “NXSN”) operates a global enterprise data storage business through its subsidiaries. The Company actively explores a diverse range of new, strategic asset management business opportunities for its portfolio. The interim Condensed Consolidated Financial Statements of GlassBridge are unaudited but, in the opinion of management, reflect all adjustments necessary for a fair statement of financial position, results of operations, comprehensive loss and cash flows for the periods presented. Except as otherwise disclosed herein, these adjustments consist of normal and recurring items. The results of operations for any interim period are not necessarily indicative of full year results. The Condensed Consolidated Financial Statements and Notes are presented in accordance with the requirements for Quarterly Reports on Form 10-Q and do not contain certain information included in our annual Consolidated Financial Statements and Notes presented in accordance with the requirements of Annual Reports on Form 10-K. The unaudited Condensed Consolidated Financial Statements include the accounts of the Company, its wholly-owned subsidiaries, and entities in which the Company owns or controls fifty percent or more of the voting shares and has the right to control. The results of entities disposed of are included in the unaudited Condensed Consolidated Financial Statements up to the date of the disposal and, where appropriate, these operations have been reflected as discontinued operations. All inter-company balances and transactions have been eliminated in consolidation and, in the opinion of management, all normal recurring adjustments necessary for a fair presentation have been included in the interim results reported. The preparation of the interim Condensed Consolidated Financial Statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the interim Condensed Consolidated Financial Statements and the reported amounts of revenue and expenses for the reporting periods. Despite our intention to establish accurate estimates and use reasonable assumptions, actual results may differ from our estimates. The December 31, 2016 Condensed Consolidated Balance Sheet data was derived from the audited Consolidated Financial Statements but does not include all disclosures required by GAAP. This Form 10-Q should be read in conjunction with our Consolidated Financial Statements and Notes included in our Annual Report on Form 10-K for the year ended December 31, 2016 as filed with the U.S. Securities and Exchange Commission on March 24, 2017. The operating results of our legacy business segments, Consumer Storage and Accessories and Tiered Storage and Security Solutions (the “Legacy Businesses”), are presented in our Condensed Consolidated Statements of Operations as discontinued operations for all periods presented. Our continuing operations in each period presented represents our global enterprise data storage business with an emerging enterprise-class, private cloud sync and share product line (the “Nexsan Business”, which consists of the products of NXSN's subsidiaries Nexsan Corporation (together with its subsidiaries other than CDI, “Nexsan”) and Connected Data, Inc. (“CDI”)), and our “Asset Management Business,” which consists of our investment advisory business conducted through GBAM, as well as corporate expenses and activities not directly attributable to our Legacy Businesses. Assets and liabilities directly associated with our Legacy Businesses and that are not part of our ongoing operations have been separately presented on the face of our Condensed Consolidated Balance Sheet as of both March 31, 2017 and December 31, 2016. See Note 4 - Discontinued Operations for further information. On January 23, 2017, we closed a transaction (the “NXSN Transaction”) with NXSN, pursuant to which all of the issued and outstanding common stock of Nexsan and CDI was transferred to NXSN in exchange for 50% of the issued and outstanding common stock of NXSN and a $25 million senior secured convertible promissory note (the “NXSN Note”). Spear Point Private Equity LP (“SPPE”), an affiliate of Spear Point Capital Management, LLC, owns the remaining 50% issued and outstanding shares of NXSN common stock and shares of NXSN non-voting preferred stock. As a result of the NXSN Transaction, we identified NXSN as a variable interest entity (“VIE”). We consolidate a VIE in our financial statements if we are deemed to be the primary beneficiary of the VIE. The primary beneficiary is the party that has the power to direct activities that most significantly impact the activities of the VIE and has the obligation to absorb losses or the right to benefits from the VIE that could potentially be significant to the VIE. Following January 23, 2017, NXSN’s financial results are included in our Condensed Consolidated Financial Statements since it was determined that we are the primary beneficiary. Until January 23, 2017, we owned 100% of the equity interest of Nexsan and CDI, their financial results were included in our Condensed Consolidated Financial Statements as wholly-owned subsidiaries. See Note 14 - Segment Information for additional information. On February 2, 2017, we closed a transaction with Clinton Group, Inc. (“Clinton”) which has facilitated the launch of our Asset Management Business, that consists of our investment advisory business conducted through GBAM (the “Capacity and Services Transaction”). See Note 6 - Intangible Assets and Goodwill and Note 16 - Related Party Transactions for further information. On February 21, 2017, the Company effected a 1:10 reverse split of our common stock, without any change in the par value per share (the “Reverse Stock Split”), and decreased the number of authorized shares of our common stock from 100,000,000 to 10,000,000. All share and per share values of the Company’s common stock for all periods presented are retroactively restated for the effect of the Reverse Stock Split. The Company’s continued operations and ultimate ability to continue as a going concern will depend on its ability to enhance revenue and operating results, enter into strategic relationships or raise additional capital. The Company can provide no assurances that such plans will occur and if the Company is unable to return to profitability or otherwise raise sufficient capital, there would be a material adverse effect on its business.

Basis of Presentation

GlassBridge Enterprises, Inc. (“GlassBridge”, “the Company”, “we”, “us” or “our”) is a holding company. Our wholly-owned subsidiary GlassBridge Asset Management, LLC (“GBAM”) is an investment advisor focused on technology-driven quantitative strategies and other alternative investment strategies. Our partially-owned subsidiary NXSN Acquisition Corp. (together with its subsidiaries, “NXSN”) operates a global enterprise data storage business through its subsidiaries. The Company actively explores a diverse range of new, strategic asset management business opportunities for its portfolio.

The interim Condensed Consolidated Financial Statements of GlassBridge are unaudited but, in the opinion of management, reflect all adjustments necessary for a fair statement of financial position, results of operations, comprehensive loss and cash flows for the periods presented. Except as otherwise disclosed herein, these adjustments consist of normal and recurring items. The results of operations for any interim period are not necessarily indicative of full year results. The Condensed Consolidated Financial Statements and Notes are presented in accordance with the requirements for Quarterly Reports on Form 10-Q and do not contain certain information included in our annual Consolidated Financial Statements and Notes presented in accordance with the requirements of Annual Reports on Form 10-K.

The unaudited Condensed Consolidated Financial Statements include the accounts of the Company, its wholly-owned subsidiaries, and entities in which the Company owns or controls fifty percent or more of the voting shares and has the right to control. The results of entities disposed of are included in the unaudited Condensed Consolidated Financial Statements up to the date of the disposal and, where appropriate, these operations have been reflected as discontinued operations. All inter-company balances and transactions have been eliminated in consolidation and, in the opinion of management, all normal recurring adjustments necessary for a fair presentation have been included in the interim results reported.

The preparation of the interim Condensed Consolidated Financial Statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the interim Condensed Consolidated Financial Statements and the reported amounts of revenue and expenses for the reporting periods. Despite our intention to establish accurate estimates and use reasonable assumptions, actual results may differ from our estimates.

The December 31, 2016 Condensed Consolidated Balance Sheet data was derived from the audited Consolidated Financial Statements but does not include all disclosures required by GAAP. This Form 10-Q should be read in conjunction with our Consolidated Financial Statements and Notes included in our Annual Report on Form 10-K for the year ended December 31, 2016 as filed with the U.S. Securities and Exchange Commission on March 24, 2017.

The operating results of our legacy business segments, Consumer Storage and Accessories and Tiered Storage and Security Solutions (the “Legacy Businesses”), are presented in our Condensed Consolidated Statements of Operations as discontinued operations for all periods presented. Our continuing operations in each period presented represents our global enterprise data storage business with an emerging enterprise-class, private cloud sync and share product line (the “Nexsan Business”, which consists of the products of NXSN's subsidiaries Nexsan Corporation (together with its subsidiaries other than CDI, “Nexsan”) and Connected Data, Inc. (“CDI”)), and our “Asset Management Business,” which consists of our investment advisory business conducted through GBAM, as well as corporate expenses and activities not directly attributable to our Legacy Businesses. Assets and liabilities directly associated with our Legacy Businesses and that are not part of our ongoing operations have been separately presented on the face of our Condensed Consolidated Balance Sheet as of both March 31, 2017 and December 31, 2016. See Note 4 - Discontinued Operations for further information.

On January 23, 2017, we closed a transaction (the “NXSN Transaction”) with NXSN, pursuant to which all of the issued and outstanding common stock of Nexsan and CDI was transferred to NXSN in exchange for 50% of the issued and outstanding common stock of NXSN and a $25 million senior secured convertible promissory note (the “NXSN Note”). Spear Point Private Equity LP (“SPPE”), an affiliate of Spear Point Capital Management, LLC, owns the remaining 50% issued and outstanding shares of NXSN common stock and shares of NXSN non-voting preferred stock. As a result of the NXSN Transaction, we identified NXSN as a variable interest entity (“VIE”). We consolidate a VIE in our financial statements if we are deemed to be the primary beneficiary of the VIE. The primary beneficiary is the party that has the power to direct activities that most significantly impact the activities of the VIE and has the obligation to absorb losses or the right to benefits from the VIE that could potentially be significant to the VIE. Following January 23, 2017, NXSN’s financial results are included in our Condensed Consolidated Financial Statements since it was determined that we are the primary beneficiary. Until January 23, 2017, we owned 100% of the equity interest of Nexsan and CDI, their financial results were included in our Condensed Consolidated Financial Statements as wholly-owned subsidiaries. See Note 14 - Segment Information for additional information.

On February 2, 2017, we closed a transaction with Clinton Group, Inc. (“Clinton”) which has facilitated the launch of our Asset Management Business, that consists of our investment advisory business conducted through GBAM (the “Capacity and Services Transaction”). See Note 6 - Intangible Assets and Goodwill and Note 16 - Related Party Transactions for further information.

On February 21, 2017, the Company effected a 1:10 reverse split of our common stock, without any change in the par value per share (the “Reverse Stock Split”), and decreased the number of authorized shares of our common stock from 100,000,000 to 10,000,000. All share and per share values of the Company’s common stock for all periods presented are retroactively restated for the effect of the Reverse Stock Split.

The Company’s continued operations and ultimate ability to continue as a going concern will depend on its ability to enhance revenue and operating results, enter into strategic relationships or raise additional capital. The Company can provide no assurances that such plans will occur and if the Company is unable to return to profitability or otherwise raise sufficient capital, there would be a material adverse effect on its business.