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Document and Entity Information - shares
 6 Months Ended
Jun. 30, 2018
Aug. 06, 2019
Cover [Abstract]    
Entity Registrant Name theMaven, Inc.  
Entity Central Index Key 0000894871  
Document Type 10-Q/A  
Document Period End Date Jun. 30, 2018  
Amendment Flag true  
Amendment Description On September 28, 2018, the Company originally filed its Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2018 with the Securities and Exchange Commission (and subsequently filed Amendment No. 1 to such report on October 12, 2018 to submit XBRL files as Exhibit 101) that included its condensed consolidated unaudited financial statements for the three months and six months ended June 30, 2018 and 2017. These condensed consolidated unaudited financial statements for the three months and six months ended June 30, 2018, had not been reviewed by an independent certified public accounting firm in accordance with Public Company Accounting Oversight Board Section AS 4105: Reviews of Interim Financial Information prior to their being filed with the Securities and Exchange Commission. The condensed consolidated unaudited financial statements for the three months and six months ended June 30, 2017 included in such report were not revised from their filing in 2017. The condensed consolidated unaudited financial statements for the three months and six months ended June 30, 2018 included herein have been reviewed by the Company's independent certified public accounting firm in accordance with Public Company Accounting Oversight Board Section AS 4105: Reviews of Interim Financial Information. In conjunction with the review, the Company made certain corrective adjustments to the previously filed financial statements for the three months and six months ended June 30, 2018, as well as to the related footnotes and other disclosures included therein. A summary of the accounting impact of these adjustments to the Company's condensed consolidated unaudited financial statements as of and for the three months and six months ended June 30, 2018 is provided at "Note 1. Organization and Basis of Presentation - Restatement". These adjustments primarily reflected revisions to the accounting treatment for the issuance of certain fully-vested warrants and the issuance of certain derivatives and debt discounts associated with debt financing transactions entered into during the three months and six months ended June 30, 2018.  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status No  
Entity Interactive Data Current No  
Entity Filer Category Non-accelerated Filer  
Entity Small Business Flag true  
Entity Emerging Growth Company false  
Entity Ex Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   36,938,926
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2018