Fair market value of stock option.

No definition available.

Name:	MVEN_FairMarketValueOfStockOption
Namespace Prefix:	MVEN_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Grant date fair value of stock options granted.

+ References

No definition available.

+ Details

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Namespace Prefix:	MVEN_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Aggregate grant date fair value for the common equity awards granted during the period

+ References

No definition available.

+ Details

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Namespace Prefix:	MVEN_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Aggregate number of common shares reserved for future issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_CommonStockSharesAuthorized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)(iii)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=MVEN_SportsIllustratedLicensingAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_GranteeStatusAxis=us-gaap_ShareBasedPaymentArrangementEmployeeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=MVEN_HubPagesEmployeesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PlanNameAxis=MVEN_StockIncentive2016PlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

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Namespace Prefix:
Data Type:	na
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- Details

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Namespace Prefix:
Data Type:	na
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- Details

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Namespace Prefix:
Data Type:	na
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- Details

Name:	us-gaap_PlanNameAxis=MVEN_StockOptionsOutside2016PlanAnd2019PlanMember
Namespace Prefix:
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- Details

Name:	us-gaap_PlanNameAxis=MVEN_PublisherPartnerWarrantProgramMember
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Stock-Based Compensation (Details Narrative) - USD ($)		12 Months Ended
Stock-Based Compensation (Details Narrative) - USD ($)	May 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 18, 2020	Apr. 03, 2020	Aug. 31, 2018	Mar. 28, 2018
Grant date fair value of stock options granted		117,000
Intrinsic value of stock option		$ 185,413
Exercise price of stock option		$ 0.60
Number of shares authorized		1,000,000,000	1,000,000,000	100,000,000
Number of Shares Common stock options, Granted			675,000
ABG Warrants [Member] \| Sports Illustrated Licensing Agreement [Member]
Intrinsic value of stock option		$ 197,909
Fair market value of stock option		$ 0.60	$ 5,458,979
Warrant to purchase common stock		21,989,844
Share-based Payment Arrangement, Employee [Member] \| HubPages Employees [Member]
Number of Shares Common stock options, Granted	2,399,997
2016 Stock Incentive Plan [Member]
Number of Shares Common stock options, Granted		234,000
2016 Stock Incentive Plan [Member] \| Minimum [Member]
Common stock reserved for grant						5,000,000	3,000,000
2016 Stock Incentive Plan [Member] \| Maximum [Member]
Common stock reserved for grant						10,000,000	5,000,000
2019 Equity Incentive Plan [Member]
Intrinsic value of stock option		$ 1,416,000
Aggregate grant date fair value for the common equity awards granted during the period		$ 11,180,642	$ 30,864,185
Fair market value of stock option		$ 0.60
Number of Shares Common stock options, Granted		25,393,768	68,180,863
2019 Equity Incentive Plan [Member] \| Maximum [Member]
Number of shares authorized					85,000,000
Stock Options Outside 2016 Plan and 2019 Plan [Member]
Intrinsic value of stock option		$ 401,583
Fair market value of stock option		$ 0.60
Number of Shares Common stock options, Granted			1,500,000
Publisher Partner Warrant [Member]
Intrinsic value of stock option
Fair market value of stock option		$ 0.60
Warrant to purchase common stock		2,000,000
Warrant expiration term		5 years
Incremental compensation cost		$ 27,754