XML 412 R7.htm IDEA: XBRL DOCUMENT
v3.20.4

Consolidated Statements of Cash Flows (Parenthetical) | Dec. 31, 2018
--- | ---
Promissory Note [Member] |
Debt instrument interest rate | 8.00%
Convertible Debenture 1 [Member] |
Debt instrument interest rate | 10.00%
Original Issue Discount Convertible Debentures [Member] |
Debt instrument interest rate | 10.00%
Convertible Debenture 2 [Member] |
Debt instrument interest rate | 12.00%
Promissory Notes Allocated Warrant Derivative Liabilities [Member] |
Discount on debt | 8.00%
Promissory Notes Allocated Embedded Derivative Liabilities [Member] |
Discount on debt | 8.00%
Convertible Debentures Allocated Embedded Derivative Liabilities ['Member] |
Discount on debt | 10.00%
Original Issue Discount Senior Convertible Debentures allocated Warrant Derivative Liabilities [Member] |
Discount on debt | 10.00%
Original Issue Senior Convertible Debentures Allocated Embedded Derivative Liabilities [Member] |
Discount on debt | 10.00%
Senior Convertible Debentures Allocated Embedded Derivative Liabilities [Member] |
Discount on debt | 12.00%
Senior Convertible Debentures [Member] |
Discount on debt | 12.00%

X
- Definition Discount on debt. + References No definition available. + Details
Name: | MVEN_DiscountOnDebt
Namespace Prefix: | MVEN_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + 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 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=MVEN_PromissoryNoteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=MVEN_ConvertibleDebentureOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=MVEN_OriginalIssueDiscountConvertibleDebenturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=MVEN_ConvertibleDebentureTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=MVEN_PromissoryNotesAllocatedWarrantDerivativeLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=MVEN_PromissoryNotesAllocatedEmbeddedDerivativeLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=MVEN_ConvertibleDebenturesAllocatedEmbeddedDerivativeLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=MVEN_OriginalIssueDiscountSeniorConvertibleDebenturesAllocatedWarrantDerivativeLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=MVEN_OriginalIssueSeniorconvertibleDebenturesAllocatedEmbeddedDerivativeLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=MVEN_SeniorconvertibleDebenturesAllocatedEmbeddedDerivativeLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=MVEN_SeniorConvertibleDebenturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |