Collaborative Agreement Milestone Payment Paid

No definition available.

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Namespace Prefix:	mnlo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Collaborative Agreement, Upfront Payment Received

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Collaborative Arrangements, Potential Milestone Payments

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Collaborative Arrangements, Potential Milestone Proceeds

+ References

No definition available.

+ Details

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Namespace Prefix:	mnlo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Number of milestones.

+ References

No definition available.

+ Details

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- 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

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- Definition

The amount of compensation earned (contract income) under a research and development arrangement accounted for as a contract to perform research and development for others.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 730
-SubTopic 20
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6420387&loc=d3e23221-108380

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 730
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6420387&loc=d3e23199-108380

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of purchased research and development assets that are acquired in a business combination have no alternative future use and are therefore written off in the period of acquisition.

+ References

No definition available.

+ Details

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

- Definition

The amount of consideration recognized during the period for the milestone or milestones.

+ References

No definition available.

+ Details

Name:	us-gaap_RevenueRecognitionMilestoneMethodRevenueRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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- Details

Name:	srt_ProductOrServiceAxis=us-gaap_LicenseMember
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- Details

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- Details

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- Details

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- Details

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- Details

Name:	us-gaap_TypeOfArrangementAxis=mnlo_CommercialMilestoneMember
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- Details

Name:	us-gaap_TypeOfArrangementAxis=mnlo_DevelopmentAndRegulatoryMilestonePreparationOfInvestigationalNewDrugSubmissionMilestoneOneMember
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License Agreements (Details)	1 Months Ended			3 Months Ended		9 Months Ended
License Agreements (Details)	May 31, 2018 USD ($)	Aug. 31, 2016 USD ($) Milestone	Dec. 31, 2012 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Sep. 30, 2018 USD ($)
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Number of milestones \| Milestone		2
Merck
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Collaborative agreement, milestone payments paid	$ 3,000,000
Merck \| License
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Licensing fee			$ 1,000,000
Merck \| Development and Regulatory Milestones
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Collaborative arrangements, potential milestone payments			$ 25,000,000
JT Torii
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Accelerated recognition of deferred revenue, amount of revenue recognized					$ 8,100,000
Research and development arrangement, contract to perform for others, compensation earned					$ 2,000,000
JT Torii \| Research and Development Arrangement
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Research and development arrangement, contract to perform for others, compensation earned				$ 0		$ 10,600,000
JT Torii \| Development and Regulatory Milestones
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Collaborative arrangements, potential milestone proceeds		$ 28,000,000
JT Torii \| Collaboration Agreement
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Collaborative agreement, upfront payment received		11,000,000
JT Torii \| Commercial Milestone
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Collaborative arrangements, potential milestone proceeds		15,000,000
JT Torii \| Development and Regulatory Milestone, Preparation of Investigational New Drug Submission, Milestone One [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Collaborative arrangements, potential milestone proceeds		$ 2,000,000