XML 48 R42.htm IDEA: XBRL DOCUMENT
v3.25.1

Commitments and Contingencies - Additional Information (Detail) $ in Thousands |  |  |  |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 16, 2023 | Mar. 09, 2023 ft² | Aug. 09, 2021 | Oct. 27, 2020 USD ($) | Aug. 04, 2020 | May 28, 2020 USD ($) ft² | Dec. 11, 2019 USD ($) | Aug. 08, 2019 ft² | Nov. 05, 2018 | Oct. 31, 2022 USD ($) | Mar. 31, 2025 USD ($) | Mar. 31, 2024 USD ($) | Dec. 31, 2024 USD ($) | Oct. 31, 2024 USD ($) | May 10, 2024 USD ($) | Oct. 01, 2023 USD ($) | Sep. 01, 2023 USD ($) | Nov. 30, 2016 USD ($)
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating lease right-of-use assets |  |  |  |  |  |  |  |  |  |  | $ 2,647 |  | $ 2,838 |  |  |  |  |
Operating lease liabilities |  |  |  |  |  |  |  |  |  |  | $ 3,770 |  | $ 4,057 |  |  |  |  |
Weighted average remaining lease term in years |  |  |  |  |  |  |  |  |  |  | 4 years 2 months 12 days |  | 4 years 6 months |  |  |  |  |
Weighted average discount rate |  |  |  |  |  |  |  |  |  |  | 11.00% |  | 11.00% |  |  |  |  |
Lease expenses |  |  |  |  |  |  |  |  |  |  | $ 100 | $ 100 |  |  |  |  |  |
Pennsylvania [Member] | Office [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating lease term |  |  |  |  |  |  |  | 3 years 6 months |  |  |  |  |  |  |  |  |  |
Lease extension period |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |
Lease term commencement date |  | Sep. 01, 2023 |  |  |  |  |  | Feb. 15, 2020 |  |  |  |  |  |  |  |  |  |
Operating lease right-of-use assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 500 |
Operating lease liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 500 |
Area of office space | ft² |  | 4,642 |  |  |  |  |  | 4,642 |  |  |  |  |  |  |  |  |  |
Lease term expiration date |  |  |  |  |  |  |  | Aug. 31, 2023 |  |  |  |  |  |  |  |  |  |
Pennsylvania [Member] | Office and Lab [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease extension period |  |  |  |  |  |  |  |  | 2 years |  |  |  |  |  |  |  |  |
Lease term commencement date |  |  |  |  |  |  |  |  | Jan. 01, 2019 |  |  |  |  |  |  |  |  |
Lease term expiration date |  |  | Dec. 31, 2022 |  | Dec. 31, 2021 |  |  |  | Dec. 31, 2020 |  |  |  |  |  |  |  |  |
Pennsylvania [Member] | Additional Office [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease term commencement date |  | Oct. 01, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating lease right-of-use assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 300 |  |
Operating lease liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 300 |  |
Area of office space | ft² |  | 3,462 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pennsylvania [Member] | Lab Space [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating lease term | 4 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease term commencement date | May 10, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating lease right-of-use assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 500 |  |  |
Operating lease liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 500 |  |  |
Massachusetts [Member] | Office [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Area of office space | ft² |  |  |  |  |  | 17,705 |  |  |  |  |  |  |  |  |  |  |  |
Lease term expiration date |  |  |  |  |  | Oct. 30, 2029 |  |  |  |  |  |  |  |  |  |  |  |
Massachusetts [Member] | Office Sublease [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease term commencement date |  |  |  | Dec. 04, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease term expiration date |  |  |  | Oct. 30, 2029 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Massachusetts [Member] | Letter of Credit | Office [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Letter of credit |  |  |  |  |  | $ 1,300 |  |  |  |  |  |  |  | $ 600 |  |  |  |
Massachusetts [Member] | First Sublease Year [Member] | Office Sublease [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual base rent |  |  |  | $ 800 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Massachusetts [Member] | First Sublease Year [Member] | Letter of Credit | Office Sublease [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease security deposits letters of credit |  |  |  | 800 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Massachusetts [Member] | Final Sublease Year [Member] | Office Sublease [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual base rent |  |  |  | 1,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Massachusetts [Member] | Sixth Sublease Year | Letter of Credit | Office Sublease [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease security deposits letters of credit |  |  |  | $ 400 |  |  |  |  |  |  |  |  |  |  |  |  |  |
WFUHS [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
License agreement consideration deduction percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 60.00%
WFUHS [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Milestone payments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,600
IU [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
License agreement consideration deduction percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20.00%
IU [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Milestone payments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,600
Annual royalty pay obligation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 100
WFUHS and IU [Member] | Research and Development Expenses [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Milestone expenses |  |  |  |  |  |  |  |  |  | $ 300 |  |  |  |  |  |  |  |
WFUHS and IU [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment for license agreements |  |  |  |  |  |  | $ 100 |  |  |  |  |  |  |  |  |  |  |

X
- Definition Area of office space. + References No definition available. + Details
Name: | lrmr_AreaOfOfficeSpace
Namespace Prefix: | lrmr_
Data Type: | dtr-types:areaItemType
Balance Type: | na
Period Type: | duration

X
- Definition Lease term commencement date. + References No definition available. + Details
Name: | lrmr_LeaseTermCommencementDate
Namespace Prefix: | lrmr_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount that may be deducted from consideration due to Licensor 2 as a percentage of consideration paid to Licensor 1, whereby Licensor 1 is the identified party. + References No definition available. + Details
Name: | lrmr_LicenseAgreementConsiderationDeductionPercentage
Namespace Prefix: | lrmr_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount of expense recognized during the period related to milestones. Such amount may include, but is not limited to, amounts due for attainment of milestones as well as deductions granted as part of a license agreement. + References No definition available. + Details
Name: | lrmr_MilestoneExpenses
Namespace Prefix: | lrmr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of payment due upon reaching milestone. + References No definition available. + Details
Name: | lrmr_MilestonePaymentAmount
Namespace Prefix: | lrmr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The minimum annual royalty payment that is required under a contractual arrangement. + References No definition available. + Details
Name: | lrmr_MinimumAnnualRoyaltyObligation
Namespace Prefix: | lrmr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Payment for license agreements. + References No definition available. + Details
Name: | lrmr_PaymentForLicenseAgreements
Namespace Prefix: | lrmr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Sublease annual base rent. + References No definition available. + Details
Name: | lrmr_SubleaseAnnualBaseRent
Namespace Prefix: | lrmr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Date which lease or group of leases is set to expire, in YYYY-MM-DD format. + References No definition available. + Details
Name: | us-gaap_LeaseExpirationDate1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Term of lessee's operating lease renewal, 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
Name: | us-gaap_LesseeOperatingLeaseRenewalTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- 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
Name: | us-gaap_LesseeOperatingLeaseTermOfContract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of operating lease expense. Excludes sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 4 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479041/842-20-45-4 + Details
Name: | us-gaap_OperatingLeaseExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479041/842-20-45-1 + Details
Name: | us-gaap_OperatingLeaseLiabilityNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479041/842-20-45-1 + Details
Name: | us-gaap_OperatingLeaseRightOfUseAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Weighted average discount rate for operating lease calculated at point in time. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 53 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479589/842-20-55-53 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (g)(4) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4 + Details
Name: | us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 53 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479589/842-20-55-53 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (g)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4 + Details
Name: | us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
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_OtherCommitmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482913/230-10-50-8 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(1)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 + Details
Name: | us-gaap_RestrictedCash
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This element represents money paid in advance to protect the provider of a product or service, such as a lessor, against damage or nonpayment by the buyer or tenant (lessee) during the term of the agreement. Such damages may include physical damage to the property, theft of property, and other contractual breaches. Security deposits held may be interest or noninterest bearing. + References No definition available. + Details
Name: | us-gaap_SecurityDepositLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_PA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=lrmr_OfficeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=lrmr_OfficeAndLabMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=lrmr_AdditionalOfficeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=lrmr_LabSpaceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_MA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=lrmr_OfficeSubleaseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_LeaseContractualTermAxis=lrmr_FirstSubleaseYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LeaseContractualTermAxis=lrmr_FinalSubleaseYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LeaseContractualTermAxis=lrmr_SixthSubleaseYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis=lrmr_WakeForestUniversityHealthSciencesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis=lrmr_IndianaUniversityResearchAndTechnologyCorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis=lrmr_WakeForestUniversityHealthSciencesAndIndianaUniversityResearchAndTechnologyCorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_ResearchAndDevelopmentExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |