XML 119 R111.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Schedule of Fair Value of Financial Instruments (Details) - USD ($) | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Short-term Debt [Line Items] |  |
Warrant derivative liabilities fair value | $ 1,147,895 | $ 1,644,200
Embedded derivative liabilities |  | 13,501,000
Strome Warrants [Member] |  |
Short-term Debt [Line Items] |  |
Warrant derivative liabilities fair value | 704,707 | 1,036,687
B. Riley Warrants [Member] |  |
Short-term Debt [Line Items] |  |
Warrant derivative liabilities fair value | 443,188 | 607,513
Fair Value, Inputs, Level 1 [Member] |  |
Short-term Debt [Line Items] |  |
Warrant derivative liabilities fair value |  |
Embedded derivative liabilities |  |
Fair Value, Inputs, Level 1 [Member] | Strome Warrants [Member] |  |
Short-term Debt [Line Items] |  |
Warrant derivative liabilities fair value |  |
Fair Value, Inputs, Level 1 [Member] | B. Riley Warrants [Member] |  |
Short-term Debt [Line Items] |  |
Warrant derivative liabilities fair value |  |
Fair Value, Inputs, Level 2 [Member] |  |
Short-term Debt [Line Items] |  |
Warrant derivative liabilities fair value |  |
Embedded derivative liabilities |  |
Fair Value, Inputs, Level 2 [Member] | Strome Warrants [Member] |  |
Short-term Debt [Line Items] |  |
Warrant derivative liabilities fair value |  |
Fair Value, Inputs, Level 2 [Member] | B. Riley Warrants [Member] |  |
Short-term Debt [Line Items] |  |
Warrant derivative liabilities fair value |  |
Fair Value, Inputs, Level 3 [Member] |  |
Short-term Debt [Line Items] |  |
Warrant derivative liabilities fair value | 1,147,895 | 1,644,200
Embedded derivative liabilities |  | 13,501,000
Fair Value, Inputs, Level 3 [Member] | Strome Warrants [Member] |  |
Short-term Debt [Line Items] |  |
Warrant derivative liabilities fair value | 704,707 | 1,036,687
Fair Value, Inputs, Level 3 [Member] | B. Riley Warrants [Member] |  |
Short-term Debt [Line Items] |  |
Warrant derivative liabilities fair value | 443,188 | 607,513
12% Amended Senior Secured Notes [Member] |  |
Short-term Debt [Line Items] |  |
Long-term debt fair value | 52,556,401 | 44,009,745
12% Amended Senior Secured Notes [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Short-term Debt [Line Items] |  |
Long-term debt fair value |  |
12% Amended Senior Secured Notes [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Short-term Debt [Line Items] |  |
Long-term debt fair value | 52,556,401 | 44,009,745
12% Amended Senior Secured Notes [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Short-term Debt [Line Items] |  |
Long-term debt fair value |  |

X
- Definition Warrant derivative liabilities fair value. + References No definition available. + Details
Name: | MVEN_WarrantDerivativeLiabilitiesFairValue
Namespace Prefix: | MVEN_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959 + Details
Name: | us-gaap_EmbeddedDerivativeFairValueOfEmbeddedDerivativeLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
Name: | us-gaap_LongTermDebtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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_ShortTermDebtLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AwardTypeAxis=MVEN_StromeWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=MVEN_BRileyWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=MVEN_TwelvePercentageAmendedSeniorSecuredNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |