Represents the additional cash paid for the license agreement.

No definition available.

Name:	mnpr_AdditionalCashPaymentForLicenseAgreement
Namespace Prefix:	mnpr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of equity capital raised by the company.

+ References

No definition available.

+ Details

Name:	mnpr_EquityCapitalRaisedAmount
Namespace Prefix:	mnpr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The number of shares related to the equity capital raised.

+ References

No definition available.

+ Details

Name:	mnpr_EquityCapitalRaisedNumberOfShares
Namespace Prefix:	mnpr_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount of cash initially paid for the license agreement.

+ References

No definition available.

+ Details

Name:	mnpr_InitialCashPaymentForLicenseAgreement
Namespace Prefix:	mnpr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the milestone payments related to the agreement.

+ References

No definition available.

+ Details

Name:	mnpr_MilestonePayments
Namespace Prefix:	mnpr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The term when operating lease is cancellable.

+ References

No definition available.

+ Details

Name:	mnpr_OperatingLeasesCancellableTerm
Namespace Prefix:	mnpr_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Term of advance written notice required to cancel operating lease.

+ References

No definition available.

+ Details

Name:	mnpr_OperatingLeasesCancellableTermOfAdvanceWrittenNotice
Namespace Prefix:	mnpr_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Monthly rental expense under operating leases.

+ References

No definition available.

+ Details

Name:	mnpr_OperatingLeasesMonthlyRentExpense
Namespace Prefix:	mnpr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The percentage of ownership interest from the license agreement.

+ References

No definition available.

+ Details

Name:	mnpr_OwnershipInterestLicenseAgreement
Namespace Prefix:	mnpr_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the percentage of outstanding shares.

+ References

No definition available.

+ Details

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Namespace Prefix:	mnpr_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of royalty payments as percentage of net sales.

+ References

No definition available.

+ Details

Name:	mnpr_RoyaltyPaymentsPercentageOfNetSales
Namespace Prefix:	mnpr_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the shares issued for the antidilutive provisions.

+ References

No definition available.

+ Details

Name:	mnpr_StockIssuedDuringPeriodSharesAntidilutionProvisions
Namespace Prefix:	mnpr_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The total cash payment for the license agreement.

+ References

No definition available.

+ Details

Name:	mnpr_TotalCashPaymentForLicenseAgreement
Namespace Prefix:	mnpr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Area of a real estate property.

+ References

No definition available.

+ Details

Name:	us-gaap_AreaOfRealEstateProperty
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the capitalized costs to acquire rights under a license arrangement (for example, to sell specified products in a specified territory) having an indefinite period of benefit.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
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-Paragraph 1
-Subparagraph (SX 210.5-02(15))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of new stock issued during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-SubTopic 10
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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-Name Accounting Standards Codification
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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-Name Accounting Standards Codification
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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-Name Accounting Standards Codification
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Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
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-Paragraph 1
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LeaseContractualTermAxis=mnpr_WetLaboratorySpaceAndEquipmentLeaseInNorthChicagoIllinoisMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=mnpr_XomaLtdMember
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Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Note 8 - Commitments and Contingencies (Details Textual)	Apr. 01, 2025 USD ($) ft²	Oct. 23, 2024 USD ($) shares	Jun. 30, 2025 USD ($)	Jan. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Executive Headquarters in Illinois [Member]
Lessee, Operating Lease, Term of Contract (Month)	36 months
Operating Leases, Monthly Rent Expense	$ 3,580
Area of Real Estate Property (Square Foot) \| ft²	1,718
Additional Space in Illinois [Member]
Operating Leases, Monthly Rent Expense	$ 2,379
Wet Laboratory Space and Equipment Lease in North Chicago, Illinois [Member]
Operating Leases, Monthly Rent Expense	$ 1,000
Area of Real Estate Property (Square Foot) \| ft²	862
Operating Leases, Cancellable, Term (Month)	6 months
Operating Leases, Cancellable, Term of Advance Written Notice (Day)	30 days
Maximum [Member] \| XOMA Ltd. [Member]
Indefinite-Lived License Agreements			$ 14,925,000
License Agreement [Member]
Stock Issued During Period, Shares, New Issues (in shares) \| shares		387,329
Ownership Interest, License Agreement		9.90%
Total Cash Payment for License Agreement		$ 4,000,000	4,000,000
Initial Cash Payment for License Agreement		1,000,000			$ 1,000,000
Additional Cash Payment for License Agreement		$ 3,000,000		$ 3,000,000
Equity Agreement [Member]
Percent of Outstanding Shares		9.90%
Equity Capital Raised, Amount		$ 25,000,000
Equity Capital Raised, Number of Shares (in shares) \| shares		705,015
Stock Issued During Period, Shares, Antidilution Provisions (in shares) \| shares		157,188
Milestone Payments			$ 0
Equity Agreement [Member] \| Maximum [Member]
Milestone Payments		$ 94,000,000
Royalty Payments, Percentage of Net Sales		20.00%
Equity Agreement [Member] \| Minimum [Member]
Royalty Payments, Percentage of Net Sales		10.00%