Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2020	Aug. 13, 2021	Jun. 30, 2020
Cover [Abstract]
Entity Registrant Name	theMaven, Inc.
Entity Central Index Key	0000894871
Document Type	10-K
Document Period End Date	Dec. 31, 2020
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
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
ICFR Auditor Attestation Flag	false
Entity Shell Company	false
Entity Public Float			$ 16,160,565
Entity Common Stock, Shares Outstanding		263,441,879
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2020