XML 83 R71.htm IDEA: XBRL DOCUMENT
v3.21.2

Schedule of Intangible Assets Subjects to Amortization (Details) - USD ($) | 9 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets, gross | $ 100,994,543 | $ 99,737,656 | $ 99,804,903
Intangible assets, accumulated amortization | (43,176,638) | 28,235,821 | 8,400,759
Intangible assets, net | 57,817,905 | 71,501,835 | 91,404,144
Intangible assets, accumulated amortization | $ 43,176,638 | (28,235,821) | (8,400,759)
Intangible assets, weighted average useful life | 3 years |  |
Developed Technology [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets, gross | $ 19,070,857 | 19,070,857 | 19,138,104
Intangible assets, accumulated amortization | (11,576,450) | 8,283,740 | 4,090,359
Intangible assets, net | 7,494,407 | 10,787,117 | 15,047,745
Intangible assets, accumulated amortization | 11,576,450 | $ (8,283,740) | (4,090,359)
Intangible assets, weighted average useful life |  | 4 years 8 months 12 days |
Noncompete Agreements [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets, gross | 480,000 | $ 480,000 | 480,000
Intangible assets, accumulated amortization | (480,000) | 480,000 | 252,000
Intangible assets, net |  |  | 228,000
Intangible assets, accumulated amortization | 480,000 | $ (480,000) | (252,000)
Intangible assets, weighted average useful life |  | 2 years |
Trade Names [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets, gross | 3,328,000 | $ 3,328,000 | 3,328,000
Intangible assets, accumulated amortization | (712,292) | 503,342 | 224,745
Intangible assets, net | 2,615,708 | 2,824,658 | 3,103,255
Intangible assets, accumulated amortization | 712,292 | $ (503,342) | (224,745)
Intangible assets, weighted average useful life |  | 16 years 7 months 17 days |
Subscriber Relationships [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets, gross | 73,458,799 | $ 73,458,799 | 73,458,799
Intangible assets, accumulated amortization | (28,992,944) | 18,105,041 | 3,587,837
Intangible assets, net | 44,465,855 | 55,353,758 | 69,870,962
Intangible assets, accumulated amortization | 28,992,944 | $ (18,105,041) | (3,587,837)
Intangible assets, weighted average useful life |  | 5 years 1 month 6 days |
Advertiser Relationships [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets, gross | 2,240,000 | $ 2,240,000 | 2,240,000
Intangible assets, accumulated amortization | (510,922) | 332,515 | 94,635
Intangible assets, net | 1,729,078 | 1,907,485 | 2,145,365
Intangible assets, accumulated amortization | 510,922 | $ (332,515) | (94,635)
Intangible assets, weighted average useful life |  | 9 years 5 months 1 day |
Database Rights [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets, gross | 2,396,887 | $ 1,140,000 | 1,140,000
Intangible assets, accumulated amortization | (904,030) | 531,183 | 151,183
Intangible assets, net | 1,492,857 | 608,817 | 988,817
Intangible assets, accumulated amortization | 904,030 | $ (531,183) | (151,183)
Intangible assets, weighted average useful life |  | 3 years |
Subtotal Amortizable Intangible Assets [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets, gross | 100,974,543 | $ 99,717,656 | 99,784,903
Intangible assets, accumulated amortization | (43,176,638) | 28,235,821 | 8,400,759
Intangible assets, net | 57,797,905 | 71,481,835 | 91,384,144
Intangible assets, accumulated amortization | 43,176,638 | (28,235,821) | (8,400,759)
Website Domain Name [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets, gross | 20,000 | 20,000 | 20,000
Intangible assets, accumulated amortization |  |  |
Intangible assets, net | 20,000 | 20,000 | 20,000
Intangible assets, accumulated amortization |  |  |

X
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 928 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 926 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=MVEN_DevelopedTechnologyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_NoncompeteAgreementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TradeNamesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=MVEN_SubscriberRelationshipsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=MVEN_AdvertiserRelationshipsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_DatabasesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=MVEN_SubtotalAmortizableIntangibleAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=MVEN_WebsiteDomainNameMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |