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Restricted Stock Liabilities (Details Narrative) - $ / shares		6 Months Ended
	Dec. 15, 2020	Jun. 30, 2021
Restricted Stock Liabilities
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	1,064,549	1,064,549
[custom:PurchasePricePerShare-0]	$ 4.00	$ 4.00

X

- References

No definition available.

+ Details

Name:	MVEN_DisclosureRestrictedStockLiabilitiesAbstract
Namespace Prefix:	MVEN_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Purchase price per share.

+ References

No definition available.

+ Details

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

X

- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ 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 (c)(2)(iii)(2)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

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