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Represents annual license fee for license agreement.

No definition available.

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The amount of expense for licensing agreements.

No definition available.

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Represents milestone payment liabilities.

No definition available.

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Represents the amount of monthly rent payment on an operating lease.

No definition available.

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Represents percentage of annual increase in rent for operating lease rent expense.

No definition available.

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The cancellation period for other commitments.

No definition available.

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Represents payments for research and development agreement.

No definition available.

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The amount of cash outflow for the termination of a commitment.

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Represents percentage of rent payable by co-lessee.

No definition available.

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Represents percentage of sub-lease income allocable to co-lessee.

No definition available.

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Costs of sales and operating expenses for the period incurred from transactions with related parties.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Weighted average discount rate for operating lease calculated at point in time.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

No definition available.

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Amount of expense for research and development. Includes, but is not limited to, cost for computer software product to be sold, leased, or otherwise marketed and writeoff of research and development assets acquired in transaction other than business combination or joint venture formation or both. Excludes write-down of intangible asset acquired in business combination or from joint venture formation or both, used in research and development activity.

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Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.

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Name:	us-gaap_StockIssuedDuringPeriodValueNewIssues
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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Amount of sublease income excluding finance and operating lease expense.

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

Name:	us-gaap_DebtInstrumentAxis=mbrx_The2023BankGuaranteeMember
Namespace Prefix:
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Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
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Name:	us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=mbrx_HoustonPharmaceuticalsIncMember
Namespace Prefix:
Data Type:	na
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Name:	us-gaap_OtherCommitmentsAxis=mbrx_ConsultingAgreementOnLicensedMoleculesMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_OtherCommitmentsAxis=mbrx_AgreementProvidingAccessToLaboratoryEquipmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	srt_CounterpartyNameAxis=mbrx_OlympiaDriveWBellfortLlcMember
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